Patent · US Active

Two-component polyurethane hot-melt adhesive with high initial and final strength

US10087349B2 · kind B2 · utility

5Cited by

10References

20Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Gabriele Brenner · Schneverdingen, DE
Birgit Drees · Herne, DE
Christina Cron · Velbert, DE
Kerstin Fuchs · Marl, DE

Key dates

Filing date	Aug 17, 2015
Grant date	Oct 2, 2018
Priority date	—
Expiry date	Nov 6, 2035

Classification

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

Abstract

A two-pack polyurethane adhesive for semi-structural and structural adhesive bonds which are applied in melt form and have a high handling strength wherein the two-pack polyurethane adhesive includes a first pack A containing at least one polyester A1 which is solid at room temperature and at least one polyol A2 having a hydroxyl group functionality greater than 2.0, and a second pack B containing polyurethane prepolymers having isocyanate groups.

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