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1. 发明专利

JP2008115391A Method for manufacturing stable polymer 审中-公开
标题翻译：制造稳定聚合物的方法
公开(公告)号：JP2008115391A
公开(公告)日：2008-05-22
申请号：JP2007285683
申请日：2007-11-02
申请人： Bayer Materialscience Ag , バイエル・マテリアルサイエンス・アクチェンゲゼルシャフトBayer MaterialScience AG
发明人： BARNES JAMES-MICHAEL , NEFZGER HARTMUT , GRACIK CHARLES S , BAUER ERIKA , PENNINGER STEFAN , LURZ HEINRICH , MEWS HORST , SCHUETZ THOMAS
IPC分类号： C08G18/10
CPC分类号： C08G18/4277 , C08G18/10 , C08G18/7678 , C08G18/3206
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an NCO prepolymer which can form a stable and homogeneous or stable transparent melt and which has viscosity usable at the processing temperature.
SOLUTION: The method for manufacturing the stable NCO prepolymer having an NCO content of 2.5-6% by weight and viscosity at 100°C of lower than 5,000 mPa s comprises manufacturing a prepolymer by (a) reacting a polyisocyanate (1) with a melting point of above 70°C and a polyol (2) with a specific average molecular weight, viscosity and number of functional groups, at 80°C-240°C and in a ratio of the NCO groups to OH groups of 1.55:1 to 2.35:1 to give a prepolymer, and then by (b) cooling the prepolymer obtained at the (a) step in such a manner that the residence times of the prepolymer in respective temperature ranges are the followings: (A) not to exceed 0.5 hour at the (a) step termination temperature-130°C, (B) not to exceed 1.5 hours at the (a) step termination temperature-110°C, (C) not to exceed 7.5 hours at the (a) step termination temperature-90°C, and (D) not to exceed 72 hours at the (a) step termination temperature-70°C, without removing an unreacted polyisocyanate being present after the cooling.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以形成稳定和均匀或稳定的透明熔体并且在加工温度下具有粘度的NCO预聚物的制备方法。解决方案：制备NCO含量为2.5-6重量％且在100℃下的粘度低于5,000mPa·s的稳定NCO预聚物的方法包括通过（a）使多异氰酸酯（1）熔点高于70℃的多元醇（2）和具有特定平均分子量，粘度和官能团数的多元醇（2），在80℃-240℃，NCO基与OH基的比例为1.55 ：1〜2.35:1，得到预聚物，然后通过（b）以（a）步骤得到的预聚物冷却预聚物在各温度范围内的停留时间如下：（A）不在（a）步骤终止温度-130℃下超过0.5小时，（B）在（a）步骤终止温度-11℃下不超过1.5小时，（C）在（a）步骤中不超过7.5小时）步骤终止温度-90℃，（D）在（a）步骤终止温度-70℃下不超过72小时，而不除去未反应的多异氰酸酯 e在冷却后存在。版权所有（C）2008，JPO＆INPIT

2. 发明专利

CA2613416A1 SOFT THERMOPLASTIC POLYURETHANE ELASTOMERS AND PROCESSES FORTHEIR PREPARATION AND USE 未知
公开(公告)号：CA2613416A1
公开(公告)日：2008-06-11
申请号：CA2613416
申请日：2007-12-04
申请人： BAYER MATERIALSCIENCE AG , BAYER MATERIALSCIENCE LLC
发明人： LAWREY BRUCE D , GRACIK CHARLES S , PEERLINGS HENRICUS , BRAUER WOLFGANG
IPC分类号： C08G18/66 , C08G18/08 , C08G18/32 , C08G18/42 , C08G18/72
摘要： Thermoplastic polyurethanes which are readily released from a mold, have a hardness of up to 80 Shore A, and a low degree of cold hardening are produced from polyester polyols made with at least one dihydric alcohol having no ether groups and an average of at least 0.40 side carbon chains per ester group in the polyester polyol.

3. 发明专利

CA2608888A1 PROCESS FOR THE PRODUCTION OF STABLE POLYMERS 未知
公开(公告)号：CA2608888A1
公开(公告)日：2008-05-02
申请号：CA2608888
申请日：2007-10-29
申请人： BAYER MATERIALSCIENCE AG , BAYER MATERIALSCIENCE LLC
发明人： BAUER ERIKA , GRACIK CHARLES S , NEFZGER HARTMUT , LUTZ HEINRICH , PENNINGER STEFAN , DI MEWS HORST , SCHUTZ THOMAS , BARNES JAMES MICHAEL
IPC分类号： C08G18/10 , C08G18/40 , C08G18/76
摘要： Stable NCO prepolymers are produced from polyisocyanates having a melting point greater than 70.degree.C, preferably, naphthalene diisocyanate, having advantageous physical properties. An important feature of the process of the present invention is the rapid cooling of the prepolymer. The process of the present invention may be carri ed out on a continuous or batch basis. The prepolymers of the present invention are particularly suitable for the production of cast polyurethane elastomers.

4. 发明专利

ES2399109T3 Procedimiento para la producción de polímeros estables 未知
公开(公告)号：ES2399109T3
公开(公告)日：2013-03-25
申请号：ES07020566
申请日：2007-10-20
申请人： BAYER MATERIALSCIENCE AG
发明人： BARNES JAMES-MICHAEL , NEFZGER HARTMUT , GRACIK CHARLES S , BAUER ERIKA , PENNINGER STEFAN DR , LURZ HEINRICH , MEWS HORST , SCHUETZ THOMAS
IPC分类号： C08G18/10 , C08G18/42 , C08G18/76
摘要： Un procedimiento para la producción de un prepolímero de NCO estable que tiene un contenido de NCO del 2,5 al6 % en peso y una viscosidad a 100 ºC de

5. 发明专利

AU2007237205A1 Soft thermoplastic polyurethane elastomers and processes for their preparation and use 未知
公开(公告)号：AU2007237205A1
公开(公告)日：2008-06-26
申请号：AU2007237205
申请日：2007-11-21
申请人： BAYER MATERIALSCIENCE AG , BAYER MATERIALSCIENCE LLC
发明人： BRAEUER WOLFGANG , LAWREY BRUCE D , GRACIK CHARLES S
IPC分类号： C08G18/66
摘要： Thermoplastic polyurethanes which are readily released from a mold, have a hardness of up to 80 Shore A, and a low degree of cold hardening are produced from polyester polyols made with at least one dihydric alcohol having no ether groups and an average of at least 0.40 side carbon chains per ester group in the polyester polyol.

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