Patent · US Expired

Adhesive based on anionically polymerized styrene/butadiene copolymers

US5585442A · kind A · utility

1Cited by

5References

4Claims

0Family size

Assignee

BASF SE

Inventors

Konrad Knoll · Mannheim, DE
Gerhard Schumacher · Heidelberg, DE
Uwe Dittrich · Schifferstadt, DE

Key dates

Filing date	Apr 28, 1995
Grant date	Dec 17, 1996
Priority date	—
Expiry date	Apr 28, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31855
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An adhesive containing an anionically polymerized copolymer based on PA1 a) from 10 to 90 wt % of vinyl aromatics, PA1 b) from 10 to 90 wt % of a conjugated diene, and PA1 c) from 0 to 30 wt % of other monomers and having a number-average molecular weight M.sub.n of from 2,000 to 250,000 and optionally having a content of homopolymer blocks having a gram-molecular weight which is greater than one twentieth of the number-average molecular weight, said content being less than 40 wt %, based on the copolymer.

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