Patent · US Active

Amorphous polyurethane polymer and its use in hotmelt adhesives

US8398809B2 · kind B2 · utility

2Cited by

1References

15Claims

0Family size

Assignee

SIKA TECHNOLOGY AG · CH

Inventors

Doreen Janke · Leck, DE
Kai Paschkowski · Jork, DE

Key dates

Filing date	Jun 30, 2009
Grant date	Mar 19, 2013
Priority date	—
Expiry date	Aug 29, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2170/20
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to innovative amorphous polyurethane polymers of the formula (I) and also to hotmelt adhesive compositions based on them. The compositions are notable for greatly improved dimensional stability after application, and are ideally suited to the adhesive bonding of transparent substrates. The polymers are notable for rapid, bubble-free curing.

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