Global Patent Index - EP 0000083 B1

EP 0000083 B1 19811202 - USE OF VINYLCHLORIDE POLYMER POWDERS IN THE MANUFACTURE OF BATTERY SEPARATORS

Title (en)

USE OF VINYLCHLORIDE POLYMER POWDERS IN THE MANUFACTURE OF BATTERY SEPARATORS

Publication

EP 0000083 B1 19811202 (FR)

Application

EP 78200027 A 19780601

Priority

FR 7717798 A 19770607

Abstract (en)

[origin: ES470544A1] Process for the polymerization of vinyl chloride in aqueous suspension in the presence of a dispersing system comprising a cellulosic derivative and an anionic emulsifying agent wherein the polymerizaton is initiated by an oil-soluble initiator and a water-soluble free radical polymerization initiator is added in the course of polymerization. The thus obtained polyvinyl chloride powders are particularly suitable for the production of battery separators.

IPC 1-7

H01M 2/16

IPC 8 full level

C08F 2/00 (2006.01); C08F 2/16 (2006.01); C08F 2/18 (2006.01); C08F 14/00 (2006.01); C08F 2/20 (2006.01); C08F 4/00 (2006.01); C08F 4/28 (2006.01); C08F 14/06 (2006.01); H01M 50/414 (2021.01)

CPC (source: EP US)

C08F 14/06 (2013.01 - EP US); H01M 50/414 (2021.01 - EP US); Y02E 60/10 (2013.01 - EP); Y10S 526/91 (2013.01 - EP US); Y10S 526/911 (2013.01 - EP US)

C-Set (source: EP US)

C08F 14/06 + C08F 2/18

Designated contracting state (EPC)

BE CH DE FR GB LU NL SE

DOCDB simple family (publication)

EP 0000083 A1 19781220; EP 0000083 B1 19811202; AT 369754 B 19830125; AT A410978 A 19820615; DE 2861393 D1 19820128; ES 470544 A1 19790101; FI 63767 B 19830429; FI 63767 C 19830810; FI 781810 A 19781208; FR 2393815 A1 19790105; FR 2393815 B1 19800118; IT 1098315 B 19850907; IT 7824304 A0 19780607; JP S543895 A 19790112; US 4243562 A 19810106

DOCDB simple family (application)

EP 78200027 A 19780601; AT 410978 A 19780606; DE 2861393 T 19780601; ES 470544 A 19780606; FI 781810 A 19780607; FR 7717798 A 19770607; IT 2430478 A 19780607; JP 6757978 A 19780605; US 91181178 A 19780602