Patent · US Active

Polyurethanes, dispersions thereof, their preparation and use

US10683426B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

BASF SE

Inventors

Sebastian Berger · Olavarría, AR
Juergen Kaczun · Monsheim, DE
Peter Thuery · Ludwigshafen, DE
Markus Hickl · Munster, DE
Steven Zijlstra · Zwolle, NL
Martin Kaarup Bek · Sint Nicolaasga, NL
K. Shaun Tranter · Monsheim, DE

Key dates

Filing date	Nov 12, 2013
Grant date	Jun 16, 2020
Priority date	—
Expiry date	Jan 29, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/14
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to polyurethanes (A) being obtainable by reaction of (a) 15% to 70% by weight of di- or polyisocyanate comprising on average from 1 to 10 allophanate groups and on average from 1 to 10 C—C double bonds per molecule, and optionally (b) 0% to 60% by weight of further di- or polyisocyanate, with (c) 5% to 50% by weight of compounds having at least two isocyanate-reactive groups, comprising at least one polycarbonate diol with a molecular weight from 500 to 3000 g/mol weight % ages being based on total polyurethane (A), with the proviso that the total is 100%.

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