Patent · US Active

Bio-based reactive polyurethane hotmelt adhesives

US12281244B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

James J. Ward · Tecumseh, US
Christian Holtgrewe · Goldkronach, DE
Timo Pasemann · Oberhausen, DE
Anja Cosima Lindhorst · Dressendorf, DE

Key dates

Filing date	Feb 16, 2021
Grant date	Apr 22, 2025
Priority date	—
Expiry date	Jan 15, 2043

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J2475/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a moisture curable hotmelt adhesive composition comprising at least one polyurethane prepolymer obtained from the reaction of a) at least one polyether; b) at least one (meth)acrylic resin; c) at least one crystalline polyester; d) at least one amorphous polyester; e) at least one isocyanate compound; in a presence of a catalyst, wherein at least one of said polyether, crystalline polyester and amorphous polyester is partially or completely bio-based material.

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