Patent · US Active

Adhesives comprising reaction product of halogenated poly(isobutylene) copolymers and polyamines

US9422464B2 · kind B2 · utility

1Cited by

9References

20Claims

0Family size

Inventors

Hae-Seung Lee · Bedford, US
Pierre R. Bieber · Goldkronach, DE
Joon Chatterjee · Bloomington, US
Siegfried R. Goeb · Willich, DE
Babu N. Gaddam · Woodbury, US

Key dates

Filing date	Feb 6, 2013
Grant date	Aug 23, 2016
Priority date	—
Expiry date	Feb 18, 2033

Classification

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

Abstract

Adhesive composition are described comprising the reaction product of at least one halogenated copolymer of isobutylene wherein halogen atoms of the copolymer are replaced by a polyamine having a melting point greater than 25° C., thereby crosslinking the copolymer. The isobutylene copolymer comprises halogenated repeat units derived from isoprene, butadiene, para-alkyl styrene, or a combination thereof. The adhesive composition comprises a copolymer of isobutylene repeat units and second repeat units selected from alkene repeat units, para-methyl styrene repeat units, or a combination thereof wherein at least a portion of the second repeat units are directly bonded to one another with a polyamine crosslinker having a melting point greater than 25° C. Also described are adhesive articles, such as tapes, comprising such adhesives.

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