BR0204113A - ElastÈmeros de uretano-uréia de etapa única estáveis à luz - Google Patents

ElastÈmeros de uretano-uréia de etapa única estáveis à luz

Info

Publication number
BR0204113A
BR0204113A BR0204113-8A BR0204113A BR0204113A BR 0204113 A BR0204113 A BR 0204113A BR 0204113 A BR0204113 A BR 0204113A BR 0204113 A BR0204113 A BR 0204113A
Authority
BR
Brazil
Prior art keywords
approximately
molecular weight
light stable
single stage
polyisocyanate
Prior art date
Application number
BR0204113-8A
Other languages
English (en)
Inventor
Peter H Markusch
Robert L Cline
Richards S Pantone
Ralf Guether
Thomas L Sekelik
Karl W Haider
Original Assignee
Bayer Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25524050&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0204113(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BR0204113A publication Critical patent/BR0204113A/pt

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
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • 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
    • C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
    • 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
    • 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
    • C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
    • 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
    • C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

"ELASTÈMEROS DE URETANO-URéIA DE ETAPA úNICA ESTáVEIS à LUZ". Esta invenção refere-se a um processo para a produção de um elastómero de poliuretano-uréia estável à luz opticamente claro que possui um início do ponto de amolecimento de pelo menos 130<198>C, processado à temperatura ambiente e fundido em um molde a um índice de isocianato de 95 a 120. Este processo compreende a reação: de A) um poliisocianato líquido ou pré-polímero de poliisocianato que possui um teor do grupo NCO de aproximadamente 5 até aproximadamente 50%, uma funcionalidade média de 2 até 3, uma viscosidade menor que 5.000 mpa.s a 25<198>C e que compreende (1) um poliisocianato (ciclo)alifático que possui um teor do grupo NCO de aproximadamente 32% até 50% em peso e uma funcionalidade de aproximadamente 2 e, opcionalmente, (2) um ou mais compostos orgânicos que possuem pelo menos dois grupos hidroxila e um peso molecular de aproximadamente 62 até aproximadamente 8.000; e B) um componente reativo ao isocianato que compreende 1) pelo menos um composto orgânico que contém pelo menos dois grupos amina aromáticos e que possui um peso molecular de 100 até 1.000 e 2) pelo menos um composto orgânico que possui pelo menos dois grupos hidroxila e um peso molecular de aproximadamente 62 até aproximadamente 6.000; na presença de C) pelo menos um catalisador organometálico. A presente invenção refere-se ainda aos elastómeros de poliuretano-uréia estáveis à luz opticamente claros obtidos através deste processo.
BR0204113-8A 2001-10-12 2002-10-09 ElastÈmeros de uretano-uréia de etapa única estáveis à luz BR0204113A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/976,397 US6562932B1 (en) 2001-10-12 2001-10-12 Light stable one-shot urethane-urea elastomers

Publications (1)

Publication Number Publication Date
BR0204113A true BR0204113A (pt) 2003-09-16

Family

ID=25524050

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0204113-8A BR0204113A (pt) 2001-10-12 2002-10-09 ElastÈmeros de uretano-uréia de etapa única estáveis à luz

Country Status (17)

Country Link
US (1) US6562932B1 (pt)
EP (1) EP1302491B1 (pt)
JP (2) JP4856349B2 (pt)
KR (1) KR20030030968A (pt)
CN (1) CN1247649C (pt)
AT (1) ATE384087T1 (pt)
BR (1) BR0204113A (pt)
CA (1) CA2407351C (pt)
DE (1) DE60224628T2 (pt)
HU (1) HUP0203415A3 (pt)
MX (1) MXPA02010001A (pt)
NO (1) NO20024914L (pt)
NZ (1) NZ521861A (pt)
PL (1) PL356576A1 (pt)
RU (1) RU2002127167A (pt)
TW (1) TW593391B (pt)
ZA (1) ZA200207137B (pt)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW593450B (en) * 2001-03-21 2004-06-21 Hoya Corp Transparent molded articles, optical components, plastic lenses and preparation method thereof
US6562932B1 (en) * 2001-10-12 2003-05-13 Bayer Corporation Light stable one-shot urethane-urea elastomers
US20070142603A1 (en) * 2005-12-16 2007-06-21 Rukavina Thomas G Polyurethane(urea) and sulfur-containing polyurethane(urea) and methods of preparation
US8501165B2 (en) 2001-12-12 2013-08-06 Promethean Surgical Devices Llc In situ bonds
WO2005094724A1 (en) * 2004-03-29 2005-10-13 Promethean Surgical Devices Llc Surgical adhesive formulations and methods of preparation
US20090280329A1 (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
US11248083B2 (en) 2004-09-01 2022-02-15 Ppg Industries Ohio, Inc. Aircraft windows
US9598527B2 (en) 2004-09-01 2017-03-21 Ppg Industries Ohio, Inc. Polyurethanes, articles and coatings prepared therefrom and methods of making the same
US11591436B2 (en) 2004-09-01 2023-02-28 Ppg Industries Ohio, Inc. Polyurethane article 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
US11149107B2 (en) 2004-09-01 2021-10-19 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
US20060057394A1 (en) * 2004-09-15 2006-03-16 Specialty Products, Inc. System and method for coating a substrate
US7655309B2 (en) * 2004-09-15 2010-02-02 Specialty Products, Inc. Isocyanate-reactive component for preparing a polyurethane-polyurea polymer
US20060058492A1 (en) * 2004-09-15 2006-03-16 Specialty Products, Inc. Polyisocyanate prepolymer component for preparing a polyurethane-polyurea polymer
US20060153999A1 (en) * 2005-01-10 2006-07-13 Shenshen Wu Cast urethane process
US20070100112A1 (en) * 2005-10-27 2007-05-03 Bayer Materialscience Llc Polyurethane-urea elastomers
ITMI20070146A1 (it) * 2007-01-30 2008-07-31 Chemtura Europe Gmbh Composizione liquida polimerizzabile e procedimento per la produzione di vetri organici a partire da composizioni liquide polimerizzabili di tipo poliuretanico
US8178644B2 (en) * 2008-01-02 2012-05-15 Polyplexx, Llc Impact-resistant polyurethane
US20090258974A1 (en) * 2008-02-06 2009-10-15 Edwin Slagel Optically transmissive resilient polymers and methods of manufacture
DE102009047214B4 (de) 2008-12-02 2023-10-05 Basf Se Verfahren zur Herstellung von kompakten transparenten Polyurethanen
JP5718821B2 (ja) * 2008-12-29 2015-05-13 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 熱可塑性ポリウレタン製の光伝導体
US8372939B1 (en) 2009-08-17 2013-02-12 Polyplexx, Llc Transparent polyurethanes
JP6098031B2 (ja) * 2011-12-01 2017-03-22 東ソー株式会社 光学部材用ポリウレタン樹脂形成性組成物およびこれらからなる光学部品
WO2013168185A1 (en) * 2012-05-09 2013-11-14 Dow Global Technologies Llc Isocyanate functional adhesive useful for headliner assembly
JP2014058663A (ja) * 2012-08-21 2014-04-03 Tosoh Corp ポリウレタンフォーム製造用の原料配合組成物
US10023681B2 (en) 2012-10-24 2018-07-17 Evonik Degussa Gmbh Delay action catalyst for improving the stability of polyurethane systems having halogen containing blowing agents
US9568643B2 (en) * 2012-12-13 2017-02-14 Ppg Industries Ohio, Inc. Polyurethane urea-containing compositions and optical articles and methods for preparing them
US20150166717A1 (en) 2013-12-17 2015-06-18 Bayer Materialscience Llc Polyurethaneureas or polyureas
US9994666B2 (en) 2013-12-17 2018-06-12 Covestro Llc Polyurethane/polyureas
DE102013022173B4 (de) 2013-12-23 2017-03-30 Gt Elektrotechnische Produkte Gmbh Polyurethan-Elastomere auf der Basis von Polyetheralkoholgemischen und trimerisierten Diisocyanaten
CN105504223A (zh) * 2015-12-31 2016-04-20 山东一诺威聚氨酯股份有限公司 耐铬酸聚氨酯弹性体及其制备方法
US10494473B2 (en) * 2016-03-14 2019-12-03 Raven Lining Systems, Inc. Hybrid novolac polyurea/polyurethane
HUE056255T2 (hu) * 2016-03-22 2022-02-28 Lubrizol Advanced Mat Inc Olvadékfeldolgozásra alkalmas hõre lágyuló poliuretán-karbamid elasztomerek
CN105713168B (zh) * 2016-05-04 2018-08-28 中国科学院福建物质结构研究所 一种聚氨酯预聚体及其制备方法
JP6580774B1 (ja) * 2018-05-16 2019-09-25 第一工業製薬株式会社 熱可塑性マトリックス樹脂形成用二液硬化型組成物、繊維強化複合材料用マトリックス樹脂、及び繊維強化複合材料
CN111196871A (zh) * 2018-11-19 2020-05-26 科思创德国股份有限公司 一种制备聚氨酯弹性体的方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA711111B (en) 1970-03-20 1971-11-24 Goodyear Tire & Rubber Hydrolytic stable polyurethane
US3755262A (en) 1971-01-15 1973-08-28 Goodyear Aerospace Corp Transparent high-impact polyurethane products
US3866242A (en) 1972-10-27 1975-02-18 Goodyear Aerospace Corp Protective shield
US4153777A (en) 1975-10-01 1979-05-08 Goodyear Aerospace Corporation Polyurethane and method of making
US4404353A (en) 1981-08-20 1983-09-13 Dataproducts Corporation Urethane elastomer for printing belts and process therefor
JPS6018514A (ja) * 1983-07-12 1985-01-30 Sanyo Chem Ind Ltd エラストマ−形成性組成物
DE3802427A1 (de) 1987-10-06 1989-08-03 Bayer Ag Verfahren zur herstellung von formkoerpern oder folien
US4808690A (en) 1988-02-29 1989-02-28 Loral Corporation High heat distortion temperature transparent polyurethanes
US5350778A (en) 1993-10-28 1994-09-27 Miles Inc. Polyisocyanate based upon 4,4'- and 2,4'-diphenylmethane diisocyanates and use thereof in a rim process
US5510445A (en) 1994-11-22 1996-04-23 Bayer Corporation Process for castable polyurea elastomers
US6127505A (en) 1995-02-02 2000-10-03 Simula Inc. Impact resistant polyurethane and method of manufacture thereof
US5646230A (en) 1995-12-21 1997-07-08 Bayer Corporation Isocyanate-terminated prepolymers, a process of producing polyurethane/polyurea elastomers therefrom, and the resultant elastomers
US5811506A (en) 1997-02-03 1998-09-22 Simula Inc. Extrudable thermoplastic elastomeric urea-extended polyurethane
US5668239A (en) 1996-06-04 1997-09-16 Bayer Corporation High modulus, high impact polyurethane/polyurea RIM
US5739253A (en) 1996-06-04 1998-04-14 Bayer Corporation RIM elastomers based on prepolymers of cycloaliphatic diisocyanates
US5710230A (en) 1996-06-04 1998-01-20 Bayer Corporation Cycloaliphatic diisocyanate based rim elastomers
US5714562A (en) 1996-06-12 1998-02-03 Bayer Corporation Light stable elastomers having good dynamic properties
US6174948B1 (en) 1996-12-24 2001-01-16 The University Of Southern Mississippi Latex compositions containing ethylenically unsaturated esters of fatty compounds and applications thereof
DE19811289A1 (de) 1998-03-16 1999-09-23 Basf Ag Kompakte, transparente Polyisocyanat-Polyadditionsprodukte
US5962619A (en) * 1998-03-16 1999-10-05 Arco Chemical Technology, L.P. Process for making clear polyurethane/urea elastomers
AU782220B2 (en) 2000-10-13 2005-07-14 Talex Optical Co., Ltd. Polyurethane resin composition and optical lens having impact resistance
US6562932B1 (en) * 2001-10-12 2003-05-13 Bayer Corporation Light stable one-shot urethane-urea elastomers

Also Published As

Publication number Publication date
ATE384087T1 (de) 2008-02-15
NZ521861A (en) 2003-05-30
JP4856349B2 (ja) 2012-01-18
NO20024914D0 (no) 2002-10-11
TW593391B (en) 2004-06-21
HUP0203415A3 (en) 2005-02-28
CN1412214A (zh) 2003-04-23
EP1302491A1 (en) 2003-04-16
DE60224628D1 (de) 2008-03-06
HUP0203415A2 (hu) 2004-06-28
DE60224628T2 (de) 2009-01-22
NO20024914L (no) 2003-04-14
CA2407351C (en) 2011-08-09
PL356576A1 (en) 2003-04-22
MXPA02010001A (es) 2005-08-16
JP2003160633A (ja) 2003-06-03
ZA200207137B (en) 2003-09-05
HU0203415D0 (en) 2002-12-28
JP2009052053A (ja) 2009-03-12
US6562932B1 (en) 2003-05-13
KR20030030968A (ko) 2003-04-18
CA2407351A1 (en) 2003-04-12
CN1247649C (zh) 2006-03-29
EP1302491B1 (en) 2008-01-16
JP5426866B2 (ja) 2014-02-26
RU2002127167A (ru) 2004-04-27

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]