Patent · US Active

PSA containing olefin block copolymers and styrene block copolymers

US9732258B2 · kind B2 · utility

2Cited by

1References

5Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Eckhard Puerkner · Dressendorf, DE
Annie Seiler · Bayeux, FR

Key dates

Filing date	May 22, 2014
Grant date	Aug 15, 2017
Priority date	—
Expiry date	Nov 3, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/03
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to storage-stable hot-melt adhesive containing 15 to 70 wt % of a mixture of at least one copolymer based on ethylene and/or propylene and at least one C4 to C20 α-olefin which is obtainable as a block copolymer by metallocene-catalyzed polymerization, and at least one styrene block copolymer, 10 to 70 wt % of at least one tackifying resin, 0 to 40 wt % of further additives, wherein the total of the percentages should amount to 100% and the tackifying resin is entirely or in part a soft resin.

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