Patent · US Expired

Sinterable, finely divided molded material based on polyvinyl chloride

US4546135A · kind A · utility

2Cited by

13References

10Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Manfred Engelmann · Burghausen, DE
Otto Plewan · Neuötting, DE
Helmut Kraus · Cologne, DE
Heinz Klippert · Altötting, DE

Key dates

Filing date	Mar 21, 1985
Grant date	Oct 8, 1985
Priority date	—
Expiry date	Mar 21, 2005

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F255/026
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A sinterable, finely divided molding material and the preparation thereof are described. The molding material is composed of a vinyl chloride (graft) copolymer, at least one anionic and/or nonionic emulsifier and, if appropriate, small quantities of additives. The vinyl chloride (graft) copolymer contains 95 to 70% by weight of polymerized units of vinyl chloride, 5 to 30% by weight of polymerized units of an alkyl acrylate having 3 to 10 carbon atoms, 0 to 7% by weight of polymerized units of ethylene and 0 to 15% by weight of polymerized units of vinyl acetate. The molding material is suitable for the production of flexible, sintered moldings, in particular separator plates, for electric cells.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.