Patent · US Active

Method for preparing a latex from a chlorinated vinylic polymer

US8623952B2 · kind B2 · utility

0Cited by

7References

10Claims

0Family size

Assignee

SOLVAY (Société Anonyme) · BE

Inventors

Peter Claassen · Ludwigshafen, DE
Roland Offner · Tavaux, FR
Benoit Faye · Brussels, BE
Yves Vanderveken · Heverlee, BE

Key dates

Filing date	Jul 2, 2007
Grant date	Jan 7, 2014
Priority date	—
Expiry date	Aug 18, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2027/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Process for preparing a seed latex of a methyl methacrylate polymer (PMMA) by radical polymerization in aqueous emulsion of methyl methacrylate and optionally at least one comonomer.Process for preparing a chlorinated vinyl polymer latex by radical polymerization in aqueous emulsion of at least one chlorinated vinyl monomer, according to which the polymerization takes place in the presence of at most 3% by weight, expressed relative to the total weight of the monomers, of the PMMA seed latex.

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