Patent · US Expired

Polymerizable solid aliphatic polyurethanes which contain olefinically unsaturated double bonds and which are based on linear diisocyanates, and their use

US6794422B1 · kind B1 · utility

8Cited by

1References

27Claims

0Family size

Assignee

BASF SE

Inventors

Bernd Bruchmann · Ludwigshafen, DE
Reinhold Schwalm · Monsheim, DE
Wolfgang Paulus · Lam, DE
Rainer Blum · Ludwigshafen, DE

Key dates

Filing date	Aug 15, 2002
Grant date	Sep 21, 2004
Priority date	—
Expiry date	Aug 15, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polymerizable solid aliphatic polyurethane containing olefinically unsaturated double bonds, having a very narrow melting range within the temperature range from 40 to 200° C., which is preparable fromA) at least one linear aliphatic diisocyanate,B) at least one aliphatic compound containing at least two isocyanate-reactive functional groups and/or water, andC) at least one olefinically unsaturated compound containing an isocyanate-reactive functional group,and its use as a powder coating material or for preparing powder coating materials.

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