WO2005111136A1 - Polyurethane enthaltend carbodiimide - Google Patents
Polyurethane enthaltend carbodiimide Download PDFInfo
- Publication number
- WO2005111136A1 WO2005111136A1 PCT/EP2005/004818 EP2005004818W WO2005111136A1 WO 2005111136 A1 WO2005111136 A1 WO 2005111136A1 EP 2005004818 W EP2005004818 W EP 2005004818W WO 2005111136 A1 WO2005111136 A1 WO 2005111136A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbodiimides
- polyurethanes
- carbodiimide
- compounds
- content
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
- C08G18/025—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only the polymeric products containing carbodiimide groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/81—Unsaturated isocyanates or isothiocyanates
- C08G18/8108—Unsaturated isocyanates or isothiocyanates having only one isocyanate or isothiocyanate group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/529—Esters containing heterocyclic rings not representing cyclic esters of phosphoric or phosphorous acids
Definitions
- the invention relates to polyurethanes, preferably thermoplastic polyurethanes containing carbodiimide, which has at least one, preferably two alkenyl unit (s), preferably at least one, particularly preferably two isopropenyl unit (s) and a content of compounds which catalyze the formation of carbodiimides, preferably phospholenes, Phospholene oxides, phospholidines and / or phospholine oxides, particularly preferably 1-methyl-2-phospholene-1-oxide of less than 5 ppm, based on the total weight of the carbodiimide.
- the invention further relates to processes for the production of polyurethanes, preferably thermoplastic polyurethanes, preferably by reacting isocyanates, compounds which are reactive toward isocyanates, optionally blowing agents and optionally catalysts, auxiliaries and / or additives, the reaction being carried out in the presence of the carbodiimide according to the invention ,
- Organic carbodiimides are known and are used, for example, as a stabilizer against the hydrolytic degradation of compounds containing ester groups, for example polyaddition and polycondensation products such as e.g. Polyurethanes.
- Carbodiimides can be prepared by generally known processes, for example by the action of basic catalysts on mono- or polyisocyanates with elimination of carbon dioxide.
- Suitable catalysts are e.g. heterocyclic compounds containing phosphorus, metal carbonyls, phospholines, phospholenes and phospholidines and their oxides and sulfides.
- Such carbodiimides, their preparation and their use as stabilizers against the hydrolytic cleavage of polyester-based plastics are e.g. described in DE-A 4 318 979, DE-A 4442724 and EP-A 460481.
- Carbodiimides which have unsaturated units are also known from the prior art.
- US 5 105 010, EP-A 638 066, JP 09-136869 and JP 09-124582 describe the preparation of carbodiimides which have aryl units.
- the object of the present invention was to develop improved carbodiimides as stabilizers against the hydrolytic cleavage of plastics based on polyester, which have optimum incorporation into the starting components of the plastics or into the plastics themselves and also the dynamic and statistical properties of the plastics , especially of polyurethane elastomers, do not adversely affect.
- a particular goal was to maintain the property profile of the plastics to be stabilized, in particular the thermoplastic polyurethane, even under conditions in which hydrolysis usually occurs. This task could be solved by the carbodiimides described at the beginning.
- the hydrolytic degradation of a polyester from one molecule by splitting becomes two molecules. This is accompanied by a corresponding loss of molecular weight.
- the carbodiimide trapping the acidic polymer residue results in a combination of these two molecules. This does not solve the problem of molecular weight reduction.
- the particular advantage of the carbodiimides according to the invention lies both in their outstanding activity as hydrolysis stabilizers and in their ability to build up crosslinks and thus higher molar masses in the polymer via the alkenyl, preferably isopropenyl units at the end of the carbodiimide. This particular advantage is particularly advantageous in thermoplastic materials, preferably thermoplastic polyurethane.
- the polymerization which can be accelerated by generally known catalysts or starters, via the unsaturated units of the carbodiimide, provides the carbodiimides according to the invention with a particularly effective crosslinking capacity which can bring about a clear increase in molecular weight in the polymer and thus ensures a high property profile of the polymer.
- Crosslinking via the unsaturated units, especially the isopropenyl units can be achieved by radical combination of the propenyl group with radical constituents in the TPU, which can be achieved by e.g. Processing steps or storage due to the influence of e.g. Oxygen are created, can be achieved.
- carbodiimides according to the invention have the following advantages:
- the present carbodiimides are, in contrast to the generally known carbodiimides initially treated as prior art, for stabilization purposes.
- tion of polyurethanes, especially thermoplastic polyurethanes. This particularly good effect is based on the fact that the catalysts for the preparation of the carbodiimides catalyze the hydrolysis of ester groups and thus undesirably accelerate the breakdown.
- carbodiimide which can be called bis- [1- (3-isopropenylphenyl) -1-methyl-ethyl] carbodiimide:
- n 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 13, 14, 15, 16, 17, 18, 19 or 20, preferred 2 to 15, particularly preferably 3 to 10.
- the carbodiimides according to the invention are prepared by generally known reaction of the isocyanate groups with one another with elimination of carbon dioxide in the presence of customary catalysts which are known for this reaction and were described at the beginning.
- the carbodiimides according to the invention can be obtained in such a way that 1- (3-isopropenylphenyl) -1-methyl-ethyl-isocyanate is used alone or together with other isocyanates, in particular 1,3-bis (1-methyl-1-isocyanato) -ethyl) -benzene in the presence of catalysts with carbon dioxide elimination to carbodiimides.
- a diisocyanate in particular 1,3-bis (1-methyl-1-isocyanato-ethyl) benzene
- the free isocyanate groups with 1- (3-isopropenylphenyl) -1- to convert methyl ethyl isocyanate to carbodiimide.
- 1- (3-isopropenyl-phenyl) -1-methyl-ethyl-isocyanate is converted to the carbodiimide alone without further isocyanates, bis- [1- (3-isopropenyl-phenyl) -1-methyl-ethyl] -carbodiimide is obtained.
- the carbodiimides according to the invention can be stabilized by generally known stabilizers such as, for example, phenolic antioxidants or HALS compounds. This type of stabilization is known, for example, for the stabilization of styrene.
- the product i.e. the carbodiimide according to the invention has an NCO content of less than 1% by weight, particularly preferably between 0.5 and 0.01% by weight.
- the carbodiimides according to the invention can be prepared by reacting diisocyanates at elevated temperatures, e.g. at temperatures from 50 to 200 ° C, preferably from 150 to 185 ° C, advantageously in the presence of catalysts with carbon dioxide elimination. Methods suitable for this are described, for example, in GB-A-1 083410, DE-B 1 130 594 (GB-A-851 936) and DE-A-11 56401 (US-A-3 502722). For example, they have proven particularly useful as catalysts. Phosphorus compounds, which are preferably selected from the group of phospholenes, phospholenoxides, phospholidines and phospholinoxides. If the reaction mixture has the desired NCO group content, the polycarbodiimide formation is usually ended.
- the catalysts can be distilled off under reduced pressure or by adding a deactivator, such as e.g. Phosphorus trichloride can be deactivated.
- a deactivator such as e.g. Phosphorus trichloride can be deactivated.
- the catalyst mentioned at the outset is removed from the carbodiimide.
- the polycarbodiimide preparation can also be carried out in the absence or presence of solvents which are inert under the reaction conditions.
- reaction conditions such as the reaction temperature, the type of catalyst and the amount of catalyst, and the reaction time
- the person skilled in the art can adjust the degree of condensation in the usual way.
- the easiest way to follow the course of the reaction is to determine the NCO content.
- Other parameters such as viscosity increase, color deepening or CO 2 development can also be used to monitor the process and control the reaction.
- the measurement can be carried out, for example, using HPLC or GCP / SEC.
- isocyanates preferably diisocyanates
- isocyanates which have unsaturated units.
- isocyanates can be used alone or together with other isocyanates, preferably diisocyanates, for example hexamethylene diisocyanate, 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane (isophorone diisocyanate), di (cyclohexyl) methane diisocyanate, trimethylhexamethylene diisocyanate, dodecane diisocyanate , Octane diisocyanate and / or cyclohexane-1,4-diisocyanate.
- the isocyanates shown at the outset are preferably used.
- the monocarbodiimides and / or oligomeric polycarbodiimides according to the invention are outstandingly suitable as acceptors for carboxyl compounds and are therefore used according to the invention as stabilizers against the hydrolytic degradation of polyurethanes, in particular polyurethanes containing ester groups.
- Polyurethanes including thermoplastic polyurethanes, are generally known. Their starting substances, manufacturing processes, structures and properties are described in various ways in the standard literature. Because of the good solubility in the structural components for the production of polyurethanes and the good compatibility with the polyurethanes formed, the (poly) carbodiimides according to the invention are particularly suitable as stabilizers against the hydrolytic degradation of polyurethanes, preferably compact or cellular polyurethane elastomers and in particular thermoplastic polyurethanes as well as cellular or compact elastomers.
- the concentration of the carbodiimides according to the invention in the polycondensation or polyaddition products containing ester groups to be stabilized is generally 0.05 to 10% by weight, preferably 0.1 to 5% by weight, based on the total weight of the mixture. In individual cases, depending on the stress on the plastic due to hydrolysis, the concentration can also be higher.
- the carbodiimides which can be used according to the invention can be introduced into the products containing ester groups to be stabilized by various methods.
- the carbodiimides according to the invention can be mixed with one of the structural components for the preparation of the polyadducts, for example the polyisocyanates and / or polyhydroxyl compounds for the production of polyurethanes, or the carbodiimides can be metered into the reaction mixture for the production of the polyurethanes.
- the carbodiimides according to the invention can be incorporated into the melt of the fully reacted polyaddition or polycondensation products.
- the carboxyl-containing polyester polyols are first treated with the carbodiimides according to the invention to reduce the acid contents and then these, optionally with addition of further amounts of carbodiimides, with polyisocyanates, optionally in In the presence of additional aids and additives, reacted.
- the carbodiimides according to the invention can be introduced into the polyurethane via the isocyanate component.
- the carbodiimides according to the invention are particularly useful when they are introduced into the ester group-containing polymer during customary packaging.
- the carbodiimides according to the invention are particularly preferred in the production of polyurethanes, e.g. cellular, for example microcellular polyurethanes, preferably polyurethane elastomers, in particular thermoplastic polyurethanes.
- polyurethanes e.g. cellular, for example microcellular polyurethanes, preferably polyurethane elastomers, in particular thermoplastic polyurethanes.
- the production of these polyurethanes, in particular polyurethane elastomers can be carried out by known reaction of conventional starting components, i.e. Isocyanates, compounds reactive toward isocyanates, optionally blowing agents, preferably water and optionally catalysts, auxiliaries and / or additives, are carried out in the presence of the carbodiimides according to the invention.
- the carbodiimides according to the invention are preferably added to the component which contains the blowing agent, preferably water.
- polyurethanes preferably thermoplastic polyurethanes
- processes for the production of polyurethanes preferably thermoplastic polyurethanes, preferably by reacting isocyanates, compounds which are reactive toward isocyanates, optionally blowing agents and optionally catalysts, auxiliaries and / or additives are preferred, the reaction being carried out in the presence of the carbodiimides according to the invention.
- the carbodiimides are suitable, for example. also to terminate esterification reactions in the production of polyester when the desired degree of polycondensation has been reached.
- thermoplastically processable polyurethane elastomers according to the invention can be used for extrusion, injection molding, calendar articles and for powder-slush processes.
- the carbodiimides according to the invention are preferably used in thermoplastic polyurethanes.
- the present invention therefore also relates to processes for producing thermoplastic polyurethane and crosslinkable TPUs obtainable in this way, in particular cable sheaths, fibers or hoses, in particular compressed air hoses, and the corresponding crosslinked products.
- the invention also relates to cable sheathing, fibers or hoses, in particular compressed air hoses, based on thermoplastic polyurethane which is crosslinked via the carbodiimides according to the invention, in particular to cable sheathing, fibers or hoses in which the crosslinked thermoplastic polyurethane has a Shore-A hardness between 85 and 98 and a Vicat temperature according to DIN EN ISO 306 (10N / 120 K / h) of greater than 130 ° C, more preferably greater than 140 ° C, especially greater than 145 ° C.
- TPUs produced according to the invention which are usually in the form of granules or in powder form, into injection molding and extrusion articles, e.g.
- injection molding and extrusion articles e.g.
- the desired foils, molded parts, rolls, fibers, cladding in automobiles, hoses, cable plugs, bellows, trailing cables, cable sheathing, seals, belts or damping elements are carried out according to customary methods, e.g. Injection molding or extrusion.
- Such injection molding and extrusion articles can also be made from compounds containing the TPU according to the invention and at least one further thermoplastic, in particular a polyethylene, polypropylene, polyester, polyether, polystyrene, PVC, ABS, ASA, SAN, polyacrylonitrile, EVA, PBT, PET, polyoxy- methylene.
- the TPU produced according to the invention can be used to produce the articles shown at the beginning.
- thermoplastic polyurethane comprising the carbodiimides according to the invention is preferably spun into fibers or extruded into hoses, in particular compressed air hoses, according to generally known processes, and the thermoplastic polyurethane is then crosslinked via the alkenyl groups, optionally using a catalyst which accelerates the crosslinking.
- the crosslinking reactions via and through the double bonds of the carbodiimide are familiar to the person skilled in the art and are generally known.
- Elastostab® H01 polymeric carbodiimide (anti-hydrolysis agent) from Elastogran GmbH
- Stabaxol® 1 monomeric carbodiimide (anti-hydrolysis agent) from Rheinchemie GmbH
- Stabilizer 1 Stabilizer made in Example 1
- Stabilizer 2 Stabilizer made in Example 2
- the glycol mixture was heated to 80 ° C. with stirring. Then 425 g of 4,4'-MDI (methylene diphenyl diisocyanate) were added and stirring was continued until the reaction mixture was homogeneous. The mixture was then poured into a flat Teflon dish and annealed at 125 ° C. on a hot plate for 10 minutes. The resulting TPU rind was annealed in a heating cabinet at 100 ° C for 24 h. After the mold plates had been granulated, they were processed into 2 mm spray plates on an injection molding machine. The mechanical values were determined and are listed in Table 2. Table 2
- test specimens were punched out of the spray plates, these were placed in glasses (250 and 500 ml) with distilled water and placed in a temperature control cabinet at a defined temperature (80 ° C). Three test specimens were removed at certain intervals (e.g. weekly). Then the samples were min. Stored for 30 minutes in standard climate 23/50 and determined tensile strength and elongation at break.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/547,278 US20070208158A1 (en) | 2004-05-13 | 2005-05-04 | Polyurethane Containing Carbodiimides |
DE112005000576T DE112005000576A5 (de) | 2004-05-13 | 2005-05-04 | Polyurethane enthaltend Carbodiimide |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004024205A DE102004024205A1 (de) | 2004-05-13 | 2004-05-13 | Polyurethane enthaltend Carbodiimide |
DE102004024205.4 | 2004-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005111136A1 true WO2005111136A1 (de) | 2005-11-24 |
Family
ID=34968455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/004818 WO2005111136A1 (de) | 2004-05-13 | 2005-05-04 | Polyurethane enthaltend carbodiimide |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070208158A1 (de) |
CN (1) | CN1954027A (de) |
DE (1) | DE102004024205A1 (de) |
WO (1) | WO2005111136A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2952502A1 (de) | 2014-06-04 | 2015-12-09 | Rhein Chemie Rheinau GmbH | Bis[3 Isopropenyl-alpha,alpha-dimethylbenzyl]carbodiimid, Verfahren zur Herstellung und dessen Verwendung |
WO2016202781A1 (de) | 2015-06-15 | 2016-12-22 | Rhein Chemie Rheinau Gmbh | Verfahren zur herstellung von polymeren carbodiimiden unter zusatz von cäsiumsalzen, polymere carbodiimide und deren verwendung |
EP4180473A1 (de) | 2021-11-10 | 2023-05-17 | LANXESS Deutschland GmbH | Verfahren zur herstellung von aromatischen polymeren carbodiimiden |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1598382A1 (de) * | 2004-05-17 | 2005-11-23 | Sika Technology AG | Einkomponentiger wässriger Dispersionsklebstoff |
WO2019176920A1 (ja) * | 2018-03-12 | 2019-09-19 | 日清紡ケミカル株式会社 | カルボジイミド化合物の製造方法 |
US20210009512A1 (en) * | 2018-03-12 | 2021-01-14 | Nisshinbo Chemical Inc. | Method for producing carbodiimide compound |
CN109825064A (zh) * | 2019-03-14 | 2019-05-31 | 江苏爱索新材料科技有限公司 | 耐水解聚氨酯软管及其制备方法 |
CN111875728B (zh) * | 2020-08-12 | 2023-04-14 | 上海朗亿功能材料有限公司 | 碳化二亚胺类聚合物及其制备方法和含其的聚合物材料 |
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EP0460481A2 (de) * | 1990-06-07 | 1991-12-11 | Bayer Ag | Verfahren zur Stabilisierung von Estergruppen enthaltenden Kunststoffen |
US5352400A (en) * | 1992-04-29 | 1994-10-04 | E. I. Du Pont De Nemours And Company | Carbodiimides and processes therefor |
DE4318979A1 (de) * | 1993-06-08 | 1994-12-15 | Basf Ag | Carbodiimide und/oder oligomere Polycarbodiimide auf Basis von 1,3-Bis-(1-methyl-1-isocyanato-ethyl)-benzol, ein Verfahren zu ihrer Herstellung und ihre Verwendung als Hydrolysestabilisator |
JPH09124582A (ja) * | 1995-11-01 | 1997-05-13 | Nisshinbo Ind Inc | カルボジイミド化合物 |
EP0850985A1 (de) * | 1996-12-24 | 1998-07-01 | Nisshinbo Industries, Inc. | Mittel zur Verbesserung der Resistenz von Estergruppen enthaltendem Harz gegen mikrobielle Schädigung, Methode zur Verbesserung besagter Resistenz, und Harzzusammensetzung mit Resistenz gegen mikrobielle Schädigung |
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DE2536493A1 (de) * | 1975-08-16 | 1977-02-24 | Bayer Ag | Polymerisationsprodukte |
DE2552350A1 (de) * | 1975-11-21 | 1977-05-26 | Bayer Ag | Lagerstabile, carbodiimidgruppen enthaltende polyisocyanate |
US4154752A (en) * | 1978-05-05 | 1979-05-15 | Mobay Chemical Corporation | Preparation of partially carbodiimidized methylenebis (phenyl isocyanate) |
US5105010A (en) * | 1991-06-13 | 1992-04-14 | Ppg Industries, Inc. | Carbodiimide compounds, polymers containing same and coating compositions containing said polymers |
JP4280409B2 (ja) * | 1997-07-31 | 2009-06-17 | ビーエーエスエフ ソシエタス・ヨーロピア | カルボジイミド基を有するポリウレタンを含有する水性分散液 |
DE102004024196A1 (de) * | 2004-05-13 | 2005-12-01 | Basf Ag | Carbodiimide enthaltend Harnstoffgruppen und Silangruppen |
-
2004
- 2004-05-13 DE DE102004024205A patent/DE102004024205A1/de not_active Withdrawn
-
2005
- 2005-05-04 US US11/547,278 patent/US20070208158A1/en not_active Abandoned
- 2005-05-04 WO PCT/EP2005/004818 patent/WO2005111136A1/de active Application Filing
- 2005-05-04 CN CNA2005800153576A patent/CN1954027A/zh active Pending
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EP0460481A2 (de) * | 1990-06-07 | 1991-12-11 | Bayer Ag | Verfahren zur Stabilisierung von Estergruppen enthaltenden Kunststoffen |
US5352400A (en) * | 1992-04-29 | 1994-10-04 | E. I. Du Pont De Nemours And Company | Carbodiimides and processes therefor |
EP0638066A1 (de) * | 1992-04-29 | 1995-02-15 | Du Pont | Carbodiimide und verfahren dafür. |
DE4318979A1 (de) * | 1993-06-08 | 1994-12-15 | Basf Ag | Carbodiimide und/oder oligomere Polycarbodiimide auf Basis von 1,3-Bis-(1-methyl-1-isocyanato-ethyl)-benzol, ein Verfahren zu ihrer Herstellung und ihre Verwendung als Hydrolysestabilisator |
JPH09124582A (ja) * | 1995-11-01 | 1997-05-13 | Nisshinbo Ind Inc | カルボジイミド化合物 |
EP0850985A1 (de) * | 1996-12-24 | 1998-07-01 | Nisshinbo Industries, Inc. | Mittel zur Verbesserung der Resistenz von Estergruppen enthaltendem Harz gegen mikrobielle Schädigung, Methode zur Verbesserung besagter Resistenz, und Harzzusammensetzung mit Resistenz gegen mikrobielle Schädigung |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2952502A1 (de) | 2014-06-04 | 2015-12-09 | Rhein Chemie Rheinau GmbH | Bis[3 Isopropenyl-alpha,alpha-dimethylbenzyl]carbodiimid, Verfahren zur Herstellung und dessen Verwendung |
WO2015185645A1 (de) | 2014-06-04 | 2015-12-10 | Rhein Chemie Rheinau Gmbh | Bis[3-isopropenyl-alpha,alpha-dimethylbenzyl]carbodiimid, verfahren zur herstellung und dessen verwendung |
US20170088509A1 (en) * | 2014-06-04 | 2017-03-30 | Rhein Chemie Rheinau Gmbh | Bis[3-isopropenyl-alpha,alpha-dimethylbenzyl]carbodiimide, production methods, and use of said compound |
US10239827B2 (en) * | 2014-06-04 | 2019-03-26 | Lanxess Deutschland Gmbh | Bis[3-isopropenyl-α,α-dimethylbenzyl]carbodiimide, production methods, and use of said compound |
WO2016202781A1 (de) | 2015-06-15 | 2016-12-22 | Rhein Chemie Rheinau Gmbh | Verfahren zur herstellung von polymeren carbodiimiden unter zusatz von cäsiumsalzen, polymere carbodiimide und deren verwendung |
EP4180473A1 (de) | 2021-11-10 | 2023-05-17 | LANXESS Deutschland GmbH | Verfahren zur herstellung von aromatischen polymeren carbodiimiden |
WO2023083877A1 (de) | 2021-11-10 | 2023-05-19 | Lanxess Deutschland Gmbh | Verfahren zur herstellung von aromatischen polymeren carbodiimiden |
Also Published As
Publication number | Publication date |
---|---|
US20070208158A1 (en) | 2007-09-06 |
CN1954027A (zh) | 2007-04-25 |
DE102004024205A1 (de) | 2005-12-08 |
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