Patent · US Active

Structural polyurethane adhesive

US9683152B2 · kind B2 · utility

3Cited by

0References

14Claims

0Family size

Assignee

SIKA TECHNOLOGY AG · CH

Inventors

Steffen Kelch · Schlieren, CH
Wolfgang Roock · Appen, DE
Florian Ittrich · Pinneberg, DE

Key dates

Filing date	Aug 20, 2013
Grant date	Jun 20, 2017
Priority date	—
Expiry date	Aug 20, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A two-component polyurethane adhesive is described. The polyurethane adhesive has high strength and extensibility, wherein the mechanical properties are only slightly dependent on the temperature. The polyurethane adhesive is suitable as a structural adhesive that is decomposed by heating in such a way that adhesive bonds can be undone in a temperature range of interest. The adhesive can include a triol, a diol, an alkoxylated aromatic diol, a polyamine, a polyisocyanate, and a polyurethane polymer having isocayanate groups in certain ratios.

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