Patent · US Active

Aqueous polymer dispersion suitable for application as tackifier for adhesives and preparable by emulsion polymerization based on C1 to C20 alkyl (meth)acrylates

US9605188B2 · kind B2 · utility

1Cited by

9References

19Claims

0Family size

Assignee

BASF SE

Inventors

Matthias Gerst · Maikammer, DE
Michael B. Gross · Kassel, DE

Key dates

Filing date	Feb 4, 2013
Grant date	Mar 28, 2017
Priority date	—
Expiry date	Oct 13, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2891
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Described is an aqueous dispersion comprising at least one polymer dispersed in water and having a weight-average molecular weight of less than 50 000 and a glass transition temperature of −40° C. to 0° C., preparable by emulsion polymerization in the presence of at least one chain transfer agent of a monomer mixture comprising at least 40% by weight of C1 to C20 alkyl (meth)acrylates, 0% to 30% by weight of vinylaromatics, at least 0.1% by weight of acid monomers, and 0% to 50% by weight of further monomers. The dispersion can be used in particular as a tackifier for adhesives.

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