Patent · US Expired

Process for the manufacture of aqueous copolymer dispersions and their use

US4900777A · kind A · utility

20Cited by

1References

25Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Peter Ball · Emmerting, DE
Klaus Marquardt · Burghausen, DE
Manfred Selig · Burghausen, DE
Klaus Hafener · Burghausen, DE

Key dates

Filing date	Jun 3, 1988
Grant date	Feb 13, 1990
Priority date	—
Expiry date	Jun 3, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F14/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Aqueous copolymer dispersions suitable for use in the manufacture of adhesives or as binding agents or as coating substances are produced by the emulsion polymerization of from 1 to 50% by weight of ethylene and from 99 to 50% by weight of vinyl monomers. With the process of the invention, in which, as vinyl monomers, vinyl chloride and, if desired, other ethylenically-unsaturated monomers, for example esters, are used, a higher ethylene content in the copolymer can be obtained at a lower pressure than hitherto. For this purpose, the greater part of the vinyl monomers is metered in and, in addition, an inert organic substance is used.

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