Patent · US Expired

Sinterable, finely particular molding composition based on vinyl chloride polymers

US4636547A · kind A · utility

7Cited by

3References

10Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

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

Key dates

Filing date	Jul 19, 1985
Grant date	Jan 13, 1987
Priority date	—
Expiry date	Jul 19, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S521/919
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A molding composition which is essentially composed of a mixture of at least two polymers based on vinyl chloride and at least one water-soluble surfactant is described. One of the polymers is a sinterable vinyl chloride/alkyl acrylate copolymer which can contain, in addition, polymerized units of vinyl acetate and ethylene. At least one further polymer is a vinyl chloride polymer which can contain up to 5% by weight of polymerized units of vinyl acetate and ethylene. The molding composition is suitable for the production of sintered, porous, flexible moldings, in particular separator compartments for electric cells.

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