Patent · US Active

Structural polyurethane adhesive having a low glass transition temperature

US9637668B2 · kind B2 · utility

2Cited by

1References

20Claims

0Family size

Assignee

SIKA TECHNOLOGY AG · CH

Inventors

Urs Burckhardt · Zürich, CH
Steffen Kelch · Schlieren, CH
Rita Cannas · Stintenberger Straße, CH

Key dates

Filing date	Sep 10, 2013
Grant date	May 2, 2017
Priority date	—
Expiry date	Nov 23, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/00672
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a two-component polyurethane adhesive having high strength and elasticity at a particularly low glass transition temperature, suitable as a structural adhesive. The adhesive according to the invention contains a triol, a diol, a polyamine, a polyisocyanate and a polyurethane polymer having isocyanate groups in certain ratios, and a Fe(III) or Ti(IV) or Zr(IV) or Hf(IV) chelate-complex-catalyst.

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