CN1284668C - Biaxial stretching polypropylene contraction single film and its preparation method - Google Patents
Biaxial stretching polypropylene contraction single film and its preparation method Download PDFInfo
- Publication number
- CN1284668C CN1284668C CN 03149870 CN03149870A CN1284668C CN 1284668 C CN1284668 C CN 1284668C CN 03149870 CN03149870 CN 03149870 CN 03149870 A CN03149870 A CN 03149870A CN 1284668 C CN1284668 C CN 1284668C
- Authority
- CN
- China
- Prior art keywords
- layer
- film
- monofilm
- hopp
- biaxially oriented
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002360 preparation method Methods 0.000 title claims description 6
- 230000008602 contraction Effects 0.000 title abstract description 6
- 239000004743 Polypropylene Substances 0.000 title abstract description 5
- -1 polypropylene Polymers 0.000 title abstract description 5
- 229920001155 polypropylene Polymers 0.000 title abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 36
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims description 27
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims description 27
- 239000000377 silicon dioxide Substances 0.000 claims description 18
- 229920001296 polysiloxane Polymers 0.000 claims description 15
- 150000001412 amines Chemical class 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 12
- 229940075507 glyceryl monostearate Drugs 0.000 claims description 6
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000007639 printing Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 abstract 10
- 230000002457 bidirectional effect Effects 0.000 abstract 3
- 239000002344 surface layer Substances 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 238000003851 corona treatment Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229920006300 shrink film Polymers 0.000 description 3
- 230000000320 anti-stroke effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention discloses a bidirectional stretched polypropylene single film and a producing method thereof. The bidirectional stretched polypropylene single film is in a three-layered structure comprising an upper layer, a middle layer and a lower layer, wherein an outer layer is a film anti-sticking smooth surface layer, the middle layer is a film sandwich layer, and the lower layer is a film anti-sticking smooth surface layer; the upper layer is composed of polypolypropylene and an anti-sticking smooth agent with the weight content of 0.2 to 6%, the middle layer contains homopolypolypropylene, and the lower layer contains homopolypolypropylene and an anti-sticking smooth agent with the weight content of 0.2 to 6%. The producing method orderly comprises the following steps: preparing material, extruding from an extruder, casting sheets, stretching in a longitudinal direction, stretching in a lateral direction and rolling up. A bidirectional stretched contraction-type polypropylene single film produced by using the raw material, the proportioning and the producing technology of the present invention has the characteristics of good stretching performance, better transparence, better glossiness, better antistatic performance and better contraction performance, and the single film can be used as a base film in the technologies of coating, printing, compounding, etc.
Description
Technical field
The present invention relates to a kind of Biaxially oriented polypropylene and shrink monofilm and preparation method thereof, thereby provide possibility for producing BOPP thermal contraction coated thin film.
Background technology
At present, the biaxially oriented film that traditional stretch processes technology is produced is classified from structure, and BOPP monofilm, BOPP heat-sealing film are arranged; Divide from performance, BOPP shrink film and BOPP normal film are arranged, but still do not have the production and the test report of BOPP shrinkage type monofilm so far both at home and abroad.BOPP shrinks monofilm, is meant that in temperature be under 120 degrees centigrade of isoperibols, and film two surpasses 3% BOPP monofilm to percent thermal shrinkage in length and breadth.Because this film surface does not have hot sealing layer, can effectively reduce the production cost of shrink film, and improve the utilization rate of pp material.This product can be used for producing the various occasions that need film to have certain percent thermal shrinkage such as BOPP thermal contraction coating monofilm, BOPP printing heat shrink film, but, because this product subsurface has been removed hot sealing layer, there are not the technology and prescription report of producing this class film both at home and abroad temporarily.
Summary of the invention
The object of the present invention is to provide a kind of low cost, be suitable for being coated with the Biaxially oriented polypropylene thermal contraction monofilm of processing, be used to process the too high problem of cost when shrinking coated film to reduce traditional shrink.
Another object of the present invention also is to provide a kind of production method of Biaxially oriented polypropylene thermal contraction monofilm.
The present invention seeks to realize like this: a kind of Biaxially oriented polypropylene shrinks monofilm, be the upper, middle and lower-ranking structure, it is characterized in that, component in each layer constitutes and weight content is respectively: HOPP 97.0～98.8% in the upper strata, silica antiblocking agent 0.1～0.5%, silicone 1～2.5%; HOPP 78.7～95% in the intermediate layer, high molecular weight amines 0～0.3%, ethoxylated amine 0～0.5%, glyceryl monostearate 0～0.5%, hydrogenated resin 5～20%; HOPP 97.2～99.9% in the lower floor, silica antiblocking agent 0.1～0.3%, silicone 0～2.5%.
Hydrogenated resin is selected above-mentioned content for use in the intermediate layer, the glossiness and the shrinkage factor that help reducing the mist degree of product and improve product, and the while can increase substantially the deflection of product.The optimum weight percentage of hydrogenated resin in the intermediate layer is 10-17.5%.Described hydrogenated resin can be the C5 Petropols or/and the C9 Petropols.
The thickness on described upper strata can be 0.5-5 μ m.
The thickness in described intermediate layer can be 11-34 μ m.
The thickness of described lower floor can be 0.5-5 μ m.
The optimum value that silicone accounts for each top layer weight is 1-1.8%.When nexine contained silicone, nexine was made of copolymerization/HOPP, silica antiblocking agent and silicone.The silica antiblocking agent on upper strata and silicone help to its surface be coated with, printing treatment, and the silica antiblocking agent in extexine has anti-stroke of good damage performance, can avoid film film surface in links such as production, transportation and unwinding and rewinding to be scratched better, prevented film self layer with layer between bonding.
A kind of above-mentioned Biaxially oriented polypropylene shrinks the preparation method of monofilm, contains successively to have the following steps: prepare burden, extrude on extruder, cast sheet, longitudinal stretching, cross directional stretch, rolling;
The draw ratio of above-mentioned longitudinal stretching is 510-580%;
The draw ratio of above-mentioned cross directional stretch is 700-1200%;
The setting temperature of cross directional stretch is 130 ℃～140 ℃.
Used preheating section temperature can be 90～120 ℃ in described longitudinal stretching process, and the stretch section temperature is 60～90 ℃.
The preheating section temperature can be 170～192 ℃ in described cross directional stretch operation, and the stretch section temperature is 140～160 ℃.
The Biaxially oriented polypropylene shrinkage type monofilm that adopts raw material of the present invention, proportioning and manufacture craft to produce, have that tensile property is good, transparency, glossiness, antistatic behaviour, the better characteristics of shrinkage, can be used as the base film of coating, printing, technology such as compound.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Biaxially oriented polypropylene shrinks each component in the monofilm and puts the percentage of this layer gross weight and be respectively: HOPP 97.0～98.8% in the upper strata, silica antiblocking agent 0.1～0.5%, silicone 1～2.5%; HOPP 78.7～95% in the intermediate layer, high molecular weight amines 0～0.3%, ethoxylated amine 0～0.5%, glyceryl monostearate 0～0.5%, hydrogenated resin 5-20%; Middle layer by layer down HOPP 97.2～99.9%, silica antiblocking agent 0.1～0.3%, silicone 0～2.5%.The Biaxially oriented polypropylene of this proportioning shrinks the smooth property of product mist degree, glossiness, shrinkage factor, high temperature of monofilm, anti-stroke of damage property, and high comprehensive performance such as easy coating and printing.
Embodiment 1
In upper strata and the lower floor HOPP weight content be 98.8%, silica 0.2%, the intermediate layer is that weight content is 90% HOPP and 10% hydrogenated resin.5.3 times of its longitudinal stretchings, 8.6 times of cross directional stretch.
Embodiment 2
In the upper strata COPP weight content be 97.9%, silica 0.1%, silicone 2%.The intermediate layer is that weight content is high molecular weight amines, 0.2% ethoxylated amine, 0.2% glyceryl monostearate and 14% the hydrogenated resin of 85.4% HOPP and 0.2%.Lower floor is the HOPP of 99.8% (wt%) and 0.2% silica antiblocking agent.5.3 times of its longitudinal stretchings, 8.6 times of cross directional stretch.
Embodiment 3
In the upper strata HOPP weight content be 97.8%, silica 0.2%, silicone 2%.The intermediate layer is that weight content is the high molecular weight amines, 0.3% ethoxylated amine of 82.5% HOPP and 0.2% and 17% hydrogenated resin.Lower floor is the COPP of 98.8% (wt%), 0.2% silica antiblocking agent and 1% silicone.5.5 times of its longitudinal stretchings, 8.6 times of cross directional stretch.
Embodiment 4
In the upper strata HOPP weight content be 97.9%, silica 0.1%, silicone 2%.The intermediate layer is that weight content is high molecular weight amines, 0.2% ethoxylated amine, 0.2% glyceryl monostearate and 17.5% the hydrogenated resin of 81.9% HOPP and 0.2%.Lower floor is the COPP of 99.8% (wt%), 0.2% silica antiblocking agent.5.5 times of its longitudinal stretchings, 8.6 times of cross directional stretch.
Embodiment 5
In the upper strata HOPP weight content be 97.8%, silica 0.2%, silicone 2%.The intermediate layer is that weight content is high molecular weight amines, 0.1% ethoxylated amine, 0.2% glyceryl monostearate and 17% the hydrogenated resin of 82.6% HOPP and 0.1%.Lower floor is the COPP of 98.8% (wt%), 0.2% silica antiblocking agent.5.4 times of its longitudinal stretchings, 8.6 times of cross directional stretch.
Embodiment 6
Biaxially oriented polypropylene provided by the invention shrinks the preparation method of monofilm, the method of optimizing is, constitute by prepare burden-extruding-cast sheet-vertical drawing-horizontal drawing-winding process, it is described that vertical to draw the vertical Lapie in the operation be 300-700%, optimum value is 510-580%, described horizontal to draw the horizontal Lapie in the operation be 7-12, optimum value 8-9.Describedly vertical draw that the preheating section temperature is 90～120 ℃ in the operation, the stretch section temperature is 60～90 ℃, describedly horizontally draws that the preheating section temperature is 170～192 ℃ in the operation, and the stretch section temperature is 140～160 ℃, and a typing section temperature is 120～155 ℃.
With an embodiment concrete production process is described below.
1, batching
Carry out the standard weighing according to the factory formula proportioning, main raw material(s) is HOPP, increase firm agent, COPP (COPP), antiblocking agent (AB), antistatic additive (AS) and slipping agent (S), it is fully dry that raw material is wanted, and prevents that product from producing bubble, influences portraitlandscape and stretch.
2, extrude
Extrude operation and finished by four extruders, intermediate layer film sandwich layer compound is extruded by elementary extruder and secondary extruder and is finished, and enters secondary extruder after being extruded by elementary extruder earlier.The extruding to be finished by two auxiliary extruders respectively of smooth compound of outer membrane and the anti-adhesion face compound of nexine film extruded, or is divided into two top layers again after being extruded by an extruder.
3, casting sheet
The effect of casting sheet machine is that the resin that the extruder die head flows out is cooled to sheet material, make degree of crystallinity, crystal habit, the crystal size of BOPP sheet material reach perfect condition, thereby improve the physical and mechanical properties of BOPP film, help operation longitudinal stretching, cross directional stretch, each roll temperature balance of casting sheet machine down, temperature is generally 22 ℃～26 ℃, is preferably 22 ℃～24 ℃
4, vertically stretch and draw
Indulging the effect of drawing operation is the sheet material preheating of coming from casting sheet machine, and by the speed difference between high speed roller and the low speed roller sheet material is stretched.
5, cross directional stretch
1), the temperature of horizontal drawing process is divided into preheating section, stretch section and typing section are in order to improve the shrinkage factor of product, guarantee product quality, these three sections temperature are lower, and the preheating section temperature is 180 ℃～192 ℃, be preferably 180 ℃～188 ℃, the stretch section temperature is 150 ℃～160 ℃, is preferably 150 ℃～155 ℃, and typing section temperature is 130 ℃～155 ℃, be preferably 130 ℃～140 ℃, purpose is to make polymer segment height-oriented, keeps intermolecular internal stress, makes film have high shrinkage.
2), clip chain tension force: the setting range of tension force comes 6.9～7.8N, is preferably 7.0～7.5N.
3), the reasonable setting of curve: the variation of orbital curve realizes that by regulating deckle rod the parameter of orbital curve comprises the width of inlet, horizontal Lapie, preceding speed etc.The horizontal requirement decision of drawing in mouthful width by casting sheet material, product.Breadth Maximum and the horizontal ratio of drawing in mouthful width were generally 8～9 times when horizontal Lapie was meant horizontal drawing.The width of setting each drawing zone will be considered the balance transition of each drawing zone, and the angle of first drawing zone is less than the angle of second drawing zone, but greater than the angle of the 3rd drawing zone.Prenex rate is as far as possible little, is generally 0～4%, is preferably 0～2%, to guarantee intermolecular internal stress.
6, sided corona treatment
Add more can allow man-hour coating combine with film more firm for allowing BOPP shrink monofilm being coated with or printing, can carry out the single or double sided corona treatment to the horizontal film surface that pulls out, processing intensity is preferably in the 38-42 dyne between the 34-48 dyne.So to handling one side or two sides, then according to the difference of purposes and corresponding choosing.
7, batch
Coiling technique is followed width, speed ratio, the sided corona treatment intensity of goods, rolling tension force, and the pressure of floating pressure roller is relevant.
1) speed ratio: the two-way polypropylene of Mitsubishi Heavy Industries Ltd is the R of stretcher progressively
4And R
5Adjustable extent is respectively 90～100.2% and is preferably 99～100.2% and 90～100%, is preferably 99～100%, R
4And R
5Can not be too high and too low.
2), the setting of tension force and floating pressure roller pressure, when tension force is set, set initial tension earlier, set pad value then, it is defined as: tension force pad value (%)=((tension force-initial tension when reeling end)/initial tension) * 100%, tension force can not be excessive, can not be too small.
Claims (4)
1, a kind of Biaxially oriented polypropylene shrinks monofilm, for the upper, middle and lower-ranking structure, it is characterized in that the component in each layer constitutes and weight content is respectively: HOPP 97.0～98.8% in the upper strata, silica antiblocking agent 0.1～0.5%, silicone 1～2.5%; HOPP 78.7～95% in the intermediate layer, high molecular weight amines 0～0.3%, ethoxylated amine 0～0.5%, glyceryl monostearate 0～0.5%, hydrogenated resin 5～20%; HOPP 97.2～99.9% in the lower floor, silica antiblocking agent 0.1～0.3%, silicone 0～2.5%.
2, Biaxially oriented polypropylene as claimed in claim 1 shrinks monofilm, and it is characterized in that: described hydrogenated resin is that the C5 Petropols are or/and the C9 Petropols.
3, Biaxially oriented polypropylene as claimed in claim 1 shrinks monofilm, and it is characterized in that: the thickness on described upper strata is 0.5-5 μ m, and the thickness in described intermediate layer is 11-34 μ m, and the thickness of described lower floor is 0.5-5 μ m.
4, the described Biaxially oriented polypropylene of a kind of claim 1 shrinks the preparation method of monofilm, contains successively to have the following steps: prepare burden, extrude on extruder, cast sheet, longitudinal stretching, cross directional stretch, rolling; Each roll temperature is 22～26 ℃ in the above-mentioned casting sheet process, and the draw ratio in the above-mentioned longitudinal stretching process is 510～580%, and the draw ratio of above-mentioned cross directional stretch process is 700～1200%, and the setting temperature of cross directional stretch is 130～140 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149870 CN1284668C (en) | 2003-07-30 | 2003-07-30 | Biaxial stretching polypropylene contraction single film and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149870 CN1284668C (en) | 2003-07-30 | 2003-07-30 | Biaxial stretching polypropylene contraction single film and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1476969A CN1476969A (en) | 2004-02-25 |
| CN1284668C true CN1284668C (en) | 2006-11-15 |
Family
ID=34156383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03149870 Expired - Lifetime CN1284668C (en) | 2003-07-30 | 2003-07-30 | Biaxial stretching polypropylene contraction single film and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1284668C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905775A (en) * | 2010-03-31 | 2010-12-08 | 黑龙江鑫港包装材料有限公司 | Adhesive-free paper plastic compounded super-thin two-way stretching BOPP membrane |
| CN103569468A (en) * | 2013-09-29 | 2014-02-12 | 桐城市福润包装材料有限公司 | Woven bag |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100415611C (en) * | 2005-08-26 | 2008-09-03 | 湖南千山制药机械股份有限公司 | Single-mouth pipe liquid-solid type two-chamber non-PVC film soft-bag large-infusion automatic production line |
| CN100415612C (en) * | 2005-09-06 | 2008-09-03 | 湖南千山制药机械股份有限公司 | Liquid-solid type hard single-mouth-pipe two-chamber carge-infusion automatic production line |
| CN101161706B (en) * | 2007-09-18 | 2010-09-29 | 佛山塑料集团股份有限公司 | Knot film and method for manufacturing same |
| US9068097B2 (en) | 2009-12-29 | 2015-06-30 | Hainan Shiner Industrial Co., Ltd. | Biaxially oriented polypropylene film substrate free from primer coating and film free from primer coating |
| CN102049861B (en) * | 2010-12-14 | 2012-11-28 | 安徽国风塑业股份有限公司 | Preparation method of BOPP film with high thermal shrinkage rate |
| CN102153810A (en) * | 2011-01-25 | 2011-08-17 | 云梦县德邦实业有限责任公司 | PP film stiffness increasing agent |
| CN102795012B (en) * | 2012-08-14 | 2015-04-01 | 海南赛诺实业有限公司 | Holographic mold-pressing contraction substrate film and manufacturing method thereof |
| CN102837476A (en) * | 2012-08-31 | 2012-12-26 | 海南赛诺实业有限公司 | Three-layer coextruded two-way stretching polypropylene polyamide separating film and manufacturing method thereof |
| CN103009749A (en) * | 2012-12-25 | 2013-04-03 | 海南赛诺实业有限公司 | Biaxially oriented polypropylene membrane with high heat-sealing strength, and manufacturing method thereof |
| CN103625079B (en) * | 2013-01-14 | 2016-09-14 | 汕头冠华薄膜工业有限公司 | A kind of antistatic BOPP thin film and composite structure method preparation technology thereof |
| CN105482260B (en) * | 2016-01-19 | 2018-09-18 | 凯威塑胶工业有限公司 | A kind of severe cold areas Biaxially oriented polypropylene bag making film and preparation method thereof |
| CN106079766B (en) * | 2016-06-29 | 2018-01-26 | 安徽国风塑业股份有限公司 | Thermal-adhering thermal equilibrium type BOPP film and its manufacture craft in a kind of mould |
| CN106671532A (en) * | 2016-12-07 | 2017-05-17 | 安徽国风塑业股份有限公司 | Extruded biaxially oriented polypropylene touch film and preparation method thereof |
| CN106671529A (en) * | 2016-12-07 | 2017-05-17 | 安徽国风塑业股份有限公司 | Biaxially stretched polypropylene touch film |
| CN109397916B (en) * | 2018-09-11 | 2020-12-01 | 红塔塑胶（成都）有限公司 | Anti-riot-tendon and anti-wrinkle printing film and preparation method thereof |
| CN114987016B (en) * | 2022-04-12 | 2024-03-15 | 广东威孚包装材料有限公司 | Flexible multilayer coextrusion biaxially oriented label film |
| CN115042490B (en) * | 2022-05-26 | 2024-02-27 | 苏州昆岭薄膜工业有限公司 | Transparent and glossy biaxially oriented polypropylene BOPP heat-resistant film and preparation method thereof |
-
2003
- 2003-07-30 CN CN 03149870 patent/CN1284668C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905775A (en) * | 2010-03-31 | 2010-12-08 | 黑龙江鑫港包装材料有限公司 | Adhesive-free paper plastic compounded super-thin two-way stretching BOPP membrane |
| CN103569468A (en) * | 2013-09-29 | 2014-02-12 | 桐城市福润包装材料有限公司 | Woven bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1476969A (en) | 2004-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1284668C (en) | Biaxial stretching polypropylene contraction single film and its preparation method | |
| CN1329981A (en) | biaxially oriented polypropylene cigarette shrink film and manufacturing method thereof | |
| EP1476294B1 (en) | Polypropylene biaxially oriented film | |
| CN101722700A (en) | Low-haze multi-layer co-extrusion two-way stretching polyamide film and preparation method | |
| CN1929985A (en) | Machine-direction oriented multilayer films | |
| CN1948000A (en) | Vacuum aluminium coating laser bidirection drawed BOPP film and its production method | |
| CN101058247A (en) | Paper plastic glue-free composite bidirectional stretching polypropylene film and its preparation method | |
| CN111703158A (en) | Antibacterial biaxially oriented polyvinyl alcohol film and preparation method thereof | |
| CN1160182C (en) | Method for single layer or multilayer coextruding two-way extension polypropylene film and special equipment | |
| CN110450490A (en) | A kind of BOPE film and preparation method thereof | |
| CN112874092A (en) | High-stiffness heat-resistant BOPE film and preparation method thereof | |
| CN112356543A (en) | High-gloss and high-transparency polyethylene cast film and preparation method thereof | |
| CN1295515A (en) | Bioriented polyethylene film with high water vapor transmission rate | |
| CN106626654B (en) | Polyolefin biaxial stretching film and preparation method thereof | |
| CN111763426A (en) | Bio-based polyamide biaxially oriented film and preparation method thereof | |
| CN1283444C (en) | Method for producing double point stretching reinforced plastic film | |
| US20210283812A1 (en) | Biaxially oriented polypropylene multilayer film and methods thereof | |
| CN114228094A (en) | Preparation method of biaxially oriented polypropylene foamed film replacing paper label | |
| CN102873950A (en) | High-surface-energy double-direction stretching polypropylene thin film and manufacturing method thereof | |
| CN103112229B (en) | Ultrathin biaxially-oriented polypropylene film for packaging coil paper and manufacturing method thereof | |
| CN114228288B (en) | High-oxygen-resistance biaxially oriented high-density polyethylene film and preparation method thereof | |
| KR20120001643A (en) | Nylon film for pouch | |
| CN1297386C (en) | Method for producing two-way stretching polypropylene film for cigarette by pipe soaking method | |
| CN114103078B (en) | High-strength polypropylene film and preparation method and application thereof | |
| CN115674838A (en) | Stiffness-enhanced temperature-resistant polyethylene film and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ASS | Succession or assignment of patent right |
Owner name: SAINUO INDUSTRY CO., LTD., HAINAN PROV. Free format text: FORMER OWNER: HAINAN MODERN NEW MATERIALS CO., LTD. Effective date: 20031215 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20031215 Applicant after: HAINAN SHINER INDUSTRIAL Co.,Ltd. Applicant before: Hainan modern new material Co.,Ltd. |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Biaxial stretching polypropylene contraction single film and its preparation method Effective date of registration: 20181225 Granted publication date: 20061115 Pledgee: China Construction Bank Co.,Ltd. Haikou Daying Shan Branch Pledgor: HAINAN SHINER INDUSTRIAL Co.,Ltd. Registration number: 2018460000012 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190213 Granted publication date: 20061115 Pledgee: China Construction Bank Co.,Ltd. Haikou Daying Shan Branch Pledgor: HAINAN SHINER INDUSTRIAL Co.,Ltd. Registration number: 2018460000012 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Biaxial stretching polypropylene contraction single film and its preparation method Effective date of registration: 20190222 Granted publication date: 20061115 Pledgee: China Construction Bank Co.,Ltd. Haikou Daying Shan Branch Pledgor: HAINAN SHINER INDUSTRIAL Co.,Ltd. Registration number: 2019460000003 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201229 Granted publication date: 20061115 Pledgee: China Construction Bank Co.,Ltd. Haikou Daying Shan Branch Pledgor: HAINAN SHINER INDUSTRIAL Co.,Ltd. Registration number: 2019460000003 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061115 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Lianqin Document name: Notice of Termination of Patent Rights |