Invention Grant
US07642304B2 Composition and process for improving heat and weathering stability of segmented polyurethane polymers
失效
用于改善分段聚氨酯聚合物的耐热和耐候稳定性的组合物和方法
- Patent Title: Composition and process for improving heat and weathering stability of segmented polyurethane polymers
- Patent Title (中): 用于改善分段聚氨酯聚合物的耐热和耐候稳定性的组合物和方法
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Application No.: US11299469Application Date: 2005-12-12
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Publication No.: US07642304B2Publication Date: 2010-01-05
- Inventor: Soke Meng Chan , Chin Siong Goh , Muhamadzen Junaidi
- Applicant: Soke Meng Chan , Chin Siong Goh , Muhamadzen Junaidi
- Applicant Address: US NY Tarrytown
- Assignee: Ciba Specialty Chemicals Corporation
- Current Assignee: Ciba Specialty Chemicals Corporation
- Current Assignee Address: US NY Tarrytown
- Agent Tyler A. Stevenson
- Priority: EP04107051 20041229
- Main IPC: C08K5/3435
- IPC: C08K5/3435 ; C08K5/1535 ; C08K5/24 ; C07C39/15
Abstract:
The present invention relates to the stabilization of segmented polyurethanes by the addition of a combination of antioxidants, benzofuranones and or sterically hindered amines and a hydrazine or hydrazide.
Public/Granted literature
- US20060142441A1 Composition and process for improving heat and weathering stability of segmented polyurethane polymers Public/Granted day:2006-06-29
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