发明名称 |
Thermoplastically processable polyurethane elastomers having an improved intrinsic color |
摘要 |
A light-colored thermoplastic molding composition comprising a polyurethane elastomer is disclosed. The polyurethane which is the reaction product of at least one polyol, at least one organic diisocyanate and at least one polyol chain extender contains one or more pentaerythritol diphosphites color stabilizers conforming to a specific formula exhibits improved color stability and improved processability. The process for preparation entails introducing the stabilizer before the reaction has been completed.
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申请公布号 |
US6486243(B2) |
申请公布日期 |
2002.11.26 |
申请号 |
US20010969344 |
申请日期 |
2001.10.01 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
BRAEUER WOLFGANG;KAUFHOLD WOLFGANG;HOPPE HANS-GEORG;WUSSOW HANS-GEORG |
分类号 |
C08J5/00;C08G18/06;C08G18/10;C08G18/48;C08G18/66;C08K5/527;C08L75/04;(IPC1-7):C08K5/49 |
主分类号 |
C08J5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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