Patent · US Expired

Aqueous polyacrylate dispersions and their use for the production of self-adhesive structures having good low temperature adhesion

US4898909A · kind A · utility

6Cited by

15References

2Claims

0Family size

Assignee

BASF SE

Inventors

Juergen Vietmeier · Monsheim, DE
Peter Pfoehler · Speyer, DE
Gundo Brauch · Monsheim, DE
Wolfgang Druschke
Albrecht Zosel · Weinheim, DE

Key dates

Filing date	Dec 30, 1987
Grant date	Feb 6, 1990
Priority date	—
Expiry date	Dec 30, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J2301/302
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Aqueous dispersions of copolymers having a glass transition temperature of not more than -45.degree. C. and a K value greater than 80 consist of not less than 80% by weight of acrylates of alkanols of 8 to 12 carbon atoms, from 1 to 4% by weight of .alpha.,.beta.- monoolefinically unsaturated carboxylic acids and/or their amide derivatives and from 0.1 to 3% by weight of .alpha.-methylstyrene, and are used for the production of self-adhesive structures having good tack at as low as -40.degree. C.

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