Patent · US Active

Polyurethane prepolymer with cyclocarbonate end groups of low viscosity and the use thereof in the production of a multi-component adhesive composition

US10266638B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

BOSTIK SA · FR

Inventors

Guillaume Michaud · L'Essart Mador, FR
Marjorie Pereira · Chauny, FR
Frederic Simon · Pont-l'Évêque, FR

Key dates

Filing date	Mar 17, 2015
Grant date	Apr 23, 2019
Priority date	—
Expiry date	Dec 11, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J175/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

1) Specific polyurethane prepolymer (PP2) comprising at least two terminal (2-oxo-1,3-dioxolan-4-yl)methyl carbamate groups of low viscosity, its preparation process and its use in the manufacture of an adhesive composition.2) Multicomponent system comprising, as first component (A), a composition comprising at least one such polyurethane prepolymer and, as second component (B), a composition comprising at least one curing agent having at least two primary amine (—NH2) groups (B1).3) Process for assembling materials employing the polyurethane prepolymer (PP2) according to the invention.

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