Invention Grant
US4501840A Alkaline modified pentaerythritol stabilizer for vinyl chloride resin
失效
用于氯乙烯树脂的碱性改性季戊四醇稳定剂
- Patent Title: Alkaline modified pentaerythritol stabilizer for vinyl chloride resin
- Patent Title (中): 用于氯乙烯树脂的碱性改性季戊四醇稳定剂
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Application No.: US543965Application Date: 1983-10-20
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Publication No.: US4501840APublication Date: 1985-02-26
- Inventor: Peter Werle , Wolfgang Merk
- Applicant: Peter Werle , Wolfgang Merk
- Applicant Address: DEX Frankfurt am Main
- Assignee: Degussa Aktiengesellschaft
- Current Assignee: Degussa Aktiengesellschaft
- Current Assignee Address: DEX Frankfurt am Main
- Priority: DEX3239086 19821022
- Main IPC: C08L27/00
- IPC: C08L27/00 ; C08K5/05 ; C08K5/057 ; C08K9/00 ; C08K9/02 ; C08L1/00 ; C09K9/02 ; C08L27/06
Abstract:
Pentaerythritol is treated at a temperature of about 180.degree. to 220.degree. C. with a strongly alkaline acting material, e.g. calcium oxide. The thus treated pentaerythritol serves as a costabilizer e.g., with the salt of a polyvalent metal and a carboxylic acid, for a vinyl chloride resin, e.g. polyvinyl chloride and has outstanding properties as such.
Public/Granted literature
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