Patent · US Active

Cross-linkable adhesive compound with hard and soft blocks as a permeant barrier

US9487684B2 · kind B2 · utility

4Cited by

10References

26Claims

0Family size

Assignee

tesa SE · DE

Inventors

Thorsten Krawinkel · Hamburg, DE
Klaus Keite-Telgenbüsher · Hamburg, DE
Judith Grünauer · Hamburg, DE
Jan Ellinger · Hamburg, DE

Key dates

Filing date	Mar 25, 2013
Grant date	Nov 8, 2016
Priority date	—
Expiry date	Mar 25, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2852
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Adhesive compound as a permeant barrier, comprising (i) block copolymers having a construction A-B-A, (A-B)n, (A-B)nX, or (A-B-A)nX, where X is the radical of the coupling reagent, n is a whole number between 2 and 10, A is a polymer made of a vinyl aromatic compound and B is a polymer block made of an alkene or diene, wherein this polymer block can also be hydrated, with the condition that at least part of the A blocks is sulfonated, optionally with two-block copolymers in the form of A-B as an admixture component, and (ii) at least one tackifier resin.

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