Patent · US Active

Polyisocyanate composition for coatings

US12122869B2 · kind B2 · utility

0Cited by

5References

12Claims

0Family size

Assignee

Covestro Intellectual Property GmbH & Co. KG · DE

Inventors

Andreas Hecking · Langenfeld, DE
Christoph Eggert
Nusret Yuva · Wermelskirchen, DE
Achim Meyer · Leverkusen, DE

Key dates

Filing date	Nov 21, 2019
Grant date	Oct 22, 2024
Priority date	—
Expiry date	Oct 20, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a polyisocyanate composition, comprising a mixture of ≥60 wt. %, relative to the total weight of the mixture, of at least one polyisocyanate based on pentamethylene diisocyanate and ≤40 wt. %, relative to the total weight of the mixture, of at least one polyisocyanate based on a cycloaliphatic diisocyanate and and/or of at least one polyisocyanate based on pentamethylene diisocyanate and at least one cycloaliphatic diisocyanate, the polyisocyanate composition having a residual monomer content of monomer diisocyanates below 0.5 wt. %, relative to the total weight of the polyisocyanate composition.

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