MX9601682A - Procedimiento para la fabricacion de laminas de polipropileno y su utilizacion. - Google Patents
Procedimiento para la fabricacion de laminas de polipropileno y su utilizacion.Info
- Publication number
- MX9601682A MX9601682A MX9601682A MX9601682A MX9601682A MX 9601682 A MX9601682 A MX 9601682A MX 9601682 A MX9601682 A MX 9601682A MX 9601682 A MX9601682 A MX 9601682A MX 9601682 A MX9601682 A MX 9601682A
- Authority
- MX
- Mexico
- Prior art keywords
- propylene polymer
- propylene
- melted
- mixture
- sheet
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Se describe un procedimiento para la fabricacion de láminas de polipropileno orientadas biaxialmente, que comprenden por lo menos una capa, en el cual un polímero de propileno B es calentado en un extrusor y la masa fundida del polímero de propileno B es extruida a través de una boquilla de rendija aplanada, y la masa fundida que sale a través de la boquilla de rendija aplanada es retirada sobre uno o varios rodillos y es consolidada para formar la lámina previa, y está lámina previa estirada en los sentidos longitudinal y transversal, calentándose y fundiéndose en un segundo extrusor un polímero de propileno, o una mezcla de polímeros de propileno, A, y conduciéndose la masa fundida del polímero de propileno, o de la mezcla de polímeros de propileno, A, junto a ambos lados de la masa fundida del polímero de propileno, B, de manera tal que ambas masas fundidas sean extruidas en comun y simultáneamente a través de la boquilla de rendija aplanada y el polímero de propileno, o la mezcla de polímeros de propileno, A, forma la zona de borde de la lámina durante el proceso de fabricacion, y las zonas de borde a base del polímero de propileno, o de la mezcla de polímeros de propileno, A, son cortadas después de los estiramientos en los sentidos longitudinal y transversal de la lámina.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19515599A DE19515599A1 (de) | 1995-05-02 | 1995-05-02 | Verfahren zur Herstellung von Polypropylenfolien und deren Verwendung |
| DE19515599.8 | 1995-05-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9601682A true MX9601682A (es) | 1997-07-31 |
| MXPA96001682A MXPA96001682A (es) | 1997-12-01 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| ZA963409B (en) | 1996-11-11 |
| JP3940184B2 (ja) | 2007-07-04 |
| DE59603321D1 (de) | 1999-11-18 |
| US5716570A (en) | 1998-02-10 |
| JPH08336884A (ja) | 1996-12-24 |
| DE19515599A1 (de) | 1996-11-07 |
| EP0740993A2 (de) | 1996-11-06 |
| ES2139976T3 (es) | 2000-02-16 |
| AU711284B2 (en) | 1999-10-07 |
| AU5196796A (en) | 1996-11-14 |
| EP0740993A3 (de) | 1997-01-08 |
| EP0740993B1 (de) | 1999-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3746607A (en) | Sheet material | |
| KR100736190B1 (ko) | 직물형 중합체 필름 | |
| AU637869B2 (en) | Process for the production of propylene polymer films and laminates and products thus obtained | |
| GB1181249A (en) | A method for the production of Crimped Fibres from Thermoplastic Macromolecular Materials | |
| DE19608453C2 (de) | Mehrschichtige Verbundfolie | |
| EP0614748A1 (en) | Method for producing thermoplastic resin sheet or film | |
| US3380868A (en) | Method for producing and orienting polypropylene films | |
| KR100686406B1 (ko) | 발포된 배향가능한 열가소성 폴리머로 되는 2축 배향성 필름 및 그 제조방법 | |
| CA2096078A1 (en) | Polypropylene foam | |
| US4075379A (en) | Melt-embossed polymer film | |
| ATE138847T1 (de) | Verfahren und vorrichtung zum herstellen von biaxial ausgerichteten folien | |
| US3632716A (en) | Manufacture of webs having selected oriented portions | |
| US4226828A (en) | Process for producing a reticulated web net | |
| US3682760A (en) | Oriented webs and method for making the same | |
| DE2420969A1 (de) | Laminierter formkoerper sowie verfahren und vorrichtung zur herstellung eines solchen | |
| EP0096458B1 (en) | Elastic films, method for their preparation and their use in contact with the skin | |
| CA1045771A (en) | Apparatus for thermoforming thermoplastic sheets | |
| JP2571612B2 (ja) | フィルムの製造方法 | |
| US5753337A (en) | Plastic net structures and the plastic net structures formed thereby | |
| GB1310474A (en) | Reticulate sheet material | |
| JP2002307627A (ja) | 通気性積層シートの製造方法 | |
| MX9601682A (es) | Procedimiento para la fabricacion de laminas de polipropileno y su utilizacion. | |
| DE2429221A1 (de) | Warmverformbares verpackungsmaterial und verfahren zu dessen herstellung | |
| JP2000158570A (ja) | 複合ウェブを製造する方法 | |
| ATE275473T1 (de) | Verfahren zur herstellung einer biaxial orientierten, wärmeschrumpfbaren, mehrschichtigen polyolefinfolie und dadurch erhaltene folie |