ES471695A1 - Procedimiento para la obtencion de elastomeros de poliureta-no-urea - Google Patents
Procedimiento para la obtencion de elastomeros de poliureta-no-ureaInfo
- Publication number
- ES471695A1 ES471695A1 ES471695A ES471695A ES471695A1 ES 471695 A1 ES471695 A1 ES 471695A1 ES 471695 A ES471695 A ES 471695A ES 471695 A ES471695 A ES 471695A ES 471695 A1 ES471695 A1 ES 471695A1
- Authority
- ES
- Spain
- Prior art keywords
- polyurethane
- possessing
- urea elastomers
- cycloaliphatic
- preparation
- 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
Links
Classifications
-
- 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
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
Landscapes
- 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
Procedimiento para la obtención de elastómeros de poliuretano-urea, caracterizado porque comprende las etapas de: A) hacer reaccionar, a temperaturas de 80 - 150ºC, compuestos de polihidroxilo esencialmente disfuncionales con pesos moleculares de 600 a 10.000, en caso dado compuestos de polihidroxilo de peso molecular por debajo de 300, con diisocianatos orgánicos con al menos un grupo NCO cicloalifático en la relación de OH total: grupos NCO de 1:1,2 hasta 1:10, durante un tiempo que oscila entre 30 minutos y varias horas en función de la temperatura, proporción molar y catalizador; B) hacer reaccionar el prepolímero con grupos NCO finales cicloalifáticos, obtenido en la etapa A), con 3,3¿, 5,5-tetrametil-4,4¿-diamino-difenilmetano, en una relación molar de 1:0,8 hasta 1:1,2 y a temperaturas de 80 a 120ºC; y C) tratar térmicamente los elastómeros resultantes a 80 - 150ºC, generalmente durante 2 - 12 horas.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772731815 DE2731815A1 (de) | 1977-07-14 | 1977-07-14 | Polyurethan-harnstoff-elastomere |
Publications (1)
Publication Number | Publication Date |
---|---|
ES471695A1 true ES471695A1 (es) | 1979-10-01 |
Family
ID=6013915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES471695A Expired ES471695A1 (es) | 1977-07-14 | 1978-07-13 | Procedimiento para la obtencion de elastomeros de poliureta-no-urea |
Country Status (6)
Country | Link |
---|---|
US (1) | US4208507A (es) |
EP (1) | EP0000360A1 (es) |
CA (1) | CA1134540A (es) |
DE (1) | DE2731815A1 (es) |
ES (1) | ES471695A1 (es) |
IT (1) | IT1105235B (es) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2902090A1 (de) * | 1979-01-19 | 1980-07-24 | Bayer Ag | Hitzehaertbare beschichtungsmassen und verfahren zur beschichtung von substraten |
DE2920501A1 (de) * | 1979-05-21 | 1980-11-27 | Bayer Ag | Verfahren zur herstellung von polyurethanharnstoffelastomeren |
DE2933165A1 (de) * | 1979-08-16 | 1981-03-26 | Bayer Ag, 51373 Leverkusen | Verfahren zur herstellung von dynamisch besonders belastbaren luftreifen |
DE2940738A1 (de) * | 1979-10-08 | 1981-04-16 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von gegebenenfalls zellhaltigen polyurethan-polyharnstoff-formkoerpern |
US4425468A (en) | 1981-12-31 | 1984-01-10 | Ppg Industries, Inc. | Polyurea-polyurethane acrylate polymer dispersions |
DE3200412A1 (de) * | 1982-01-09 | 1983-07-21 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von gegebenenfalls zelligen polyurethanharnstoffelastomeren |
US4439553A (en) * | 1983-01-17 | 1984-03-27 | W. R. Grace & Co. | High molecular weight aromatic amine scavengers and method of use |
DE3429149A1 (de) * | 1984-08-08 | 1986-02-20 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von stabilisierten polyaminen, stabilisierte polyamine retardierter reaktivitaet und ihre verwendung zur polyurethanherstellung |
US4581433A (en) * | 1985-04-29 | 1986-04-08 | Mobay Corporation | Elastomer polyurethane-polyurea coatings based on bis(4-isocyanatocyclohexyl)methane |
US5077330A (en) * | 1988-08-29 | 1991-12-31 | Armstrong World Industries, Inc. | Conductive polyurethane-urea/polyethylene oxide |
US5510445A (en) * | 1994-11-22 | 1996-04-23 | Bayer Corporation | Process for castable polyurea elastomers |
US5962617A (en) * | 1995-02-02 | 1999-10-05 | Simula Inc. | Impact resistant polyurethane and method of manufacture thereof |
US6127505A (en) * | 1995-02-02 | 2000-10-03 | Simula Inc. | Impact resistant polyurethane and method of manufacture thereof |
US5811506A (en) * | 1997-02-03 | 1998-09-22 | Simula Inc. | Extrudable thermoplastic elastomeric urea-extended polyurethane |
US6258917B1 (en) | 1996-05-21 | 2001-07-10 | Simula, Inc. | Extrudable thermoplastic elastomeric urea-extended polyurethane |
US20060241273A1 (en) * | 2001-11-16 | 2006-10-26 | Bojkova Nina V | High impact poly (urethane urea) polysulfides |
US7144969B2 (en) * | 2001-11-16 | 2006-12-05 | Ppg Industries Ohio, Inc. | Impact resistant polyureaurethane and polyureaurethane prepolymer having low NCO/OH ratio |
US8017720B2 (en) * | 2005-12-16 | 2011-09-13 | Ppg Industries Ohio, Inc. | Sulfur-containing oligomers and high index polyurethanes prepared therefrom |
US20030096935A1 (en) * | 2001-11-16 | 2003-05-22 | Nagpal Vidhu J. | Impact resistant polyureaurethane and method of preparation |
US20070142604A1 (en) * | 2005-12-16 | 2007-06-21 | Nina Bojkova | Polyurethanes and sulfur-containing polyurethanes and methods of preparation |
JP3938515B2 (ja) * | 2002-06-12 | 2007-06-27 | Sriスポーツ株式会社 | ゴルフボール |
US20040021133A1 (en) * | 2002-07-31 | 2004-02-05 | Nagpal Vidhu J. | High refractive index polymerizable composition |
US7009032B2 (en) * | 2002-12-20 | 2006-03-07 | Ppg Industries Ohio, Inc. | Sulfide-containing polythiols |
US11591436B2 (en) | 2004-09-01 | 2023-02-28 | Ppg Industries Ohio, Inc. | Polyurethane article and methods of making the same |
US9598527B2 (en) | 2004-09-01 | 2017-03-21 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
US20090280709A1 (en) | 2004-09-01 | 2009-11-12 | Ppg Industries Ohio, Inc. | Polyurethanes, Articles and Coatings Prepared Therefrom and Methods of Making the Same |
US11008418B2 (en) | 2004-09-01 | 2021-05-18 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
US20090280329A1 (en) | 2004-09-01 | 2009-11-12 | Ppg Industries Ohio, Inc. | Polyurethanes, Articles and Coatings Prepared Therefrom and Methods of Making the Same |
US11149107B2 (en) | 2004-09-01 | 2021-10-19 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
US9464169B2 (en) | 2004-09-01 | 2016-10-11 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
US11248083B2 (en) | 2004-09-01 | 2022-02-15 | Ppg Industries Ohio, Inc. | Aircraft windows |
US7696296B2 (en) * | 2006-05-05 | 2010-04-13 | Ppg Industries Ohio, Inc. | Compositions and articles prepared from the thioether functional oligomeric polythiols |
US9568643B2 (en) | 2012-12-13 | 2017-02-14 | Ppg Industries Ohio, Inc. | Polyurethane urea-containing compositions and optical articles and methods for preparing them |
US9500445B2 (en) * | 2013-09-10 | 2016-11-22 | The United States Of America As Represented By The Secretary Of The Army | Multi-layer matrix composite having improved energy absorption, dissipation and shock wave mitigation capabilities |
US11059746B2 (en) | 2015-08-10 | 2021-07-13 | America as represented by the Secretary of the Army | Thermoplastic cycloaliphatic polyamide matrix resins for next-generation energy absorbing applications |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1479890A (fr) * | 1965-05-14 | 1967-05-05 | Bayer Ag | Procédé de préparation de matières plastiques réticulées selon le processus depolyaddition d'isocyanates |
DE1240654B (de) * | 1965-05-14 | 1967-05-18 | Bayer Ag | Verfahren zur Herstellung vernetzter Kunststoffe nach dem Isocyanat-Polyadditions-Verfahren |
BE791310A (fr) * | 1971-11-13 | 1973-05-14 | Bayer Ag | Procede de preparation de pieces moulees en mousse |
-
1977
- 1977-07-14 DE DE19772731815 patent/DE2731815A1/de not_active Withdrawn
-
1978
- 1978-06-30 EP EP78100282A patent/EP0000360A1/de not_active Withdrawn
- 1978-07-06 IT IT50185/78A patent/IT1105235B/it active
- 1978-07-06 US US05/922,317 patent/US4208507A/en not_active Expired - Lifetime
- 1978-07-13 CA CA000307345A patent/CA1134540A/en not_active Expired
- 1978-07-13 ES ES471695A patent/ES471695A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0000360A1 (de) | 1979-01-24 |
IT7850185A0 (it) | 1978-07-06 |
DE2731815A1 (de) | 1979-02-01 |
CA1134540A (en) | 1982-10-26 |
IT1105235B (it) | 1985-10-28 |
US4208507A (en) | 1980-06-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20001009 |