Invention Grant
US5023299A Polyolefinecarboxylic acids, their preparation and their use for
preparing polyolefine-polycarbonate block copolymers
失效
聚烯烃羧酸，其制备及其用于制备聚烯烃 - 聚碳酸酯嵌段共聚物的用途
- Patent Title: Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers
- Patent Title (中): 聚烯烃羧酸，其制备及其用于制备聚烯烃 - 聚碳酸酯嵌段共聚物的用途
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Application No.: US473495Application Date: 1990-02-01
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Publication No.: US5023299APublication Date: 1991-06-11
- Inventor: Kurt P. Meuer , Helmut Waniczek , Gerd Sylvester , Josef Witte
- Applicant: Kurt P. Meuer , Helmut Waniczek , Gerd Sylvester , Josef Witte
- Applicant Address: DEX Bayerwerk
- Assignee: Bayer Aktiengesellschaft
- Current Assignee: Bayer Aktiengesellschaft
- Current Assignee Address: DEX Bayerwerk
- Priority: DEX3618378 19860531
- Main IPC: C08F8/06
- IPC: C08F8/06 ; C08F8/18 ; C08F8/50 ; C08G81/02
Abstract:
The present invention relates to poly-(C.sub.2 -C.sub.10 -.alpha.-olefine)-carboxylic acids of Mw (weight average) 2000 to 350,000, to their preparation by oxidative degradation of polyolefines or by reaction of "Living" polyolefines with CO.sub.2, to their conversion into poly-(C.sub.2 -C.sub.10 -.alpha.-olefine)-carbonyl halides and to their use for preparing polyolefine/polycarbonate block copolymers and the block copolymers obtainable by the process according to the invention.
Public/Granted literature
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