Patent · US Expired

Curable binders

US5215828A · kind A · utility

1Cited by

11References

8Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Gerhard Brindoepke · Pocking, DE
Inge Kurth · Wiesbaden, DE
Michael Schwab · Neuötting, DE
Gerd Walz · Wiesbaden, DE

Key dates

Filing date	Aug 19, 1992
Grant date	Jun 1, 1993
Priority date	—
Expiry date	Aug 19, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31949
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Curable binders obtained by simultaneous reaction of PA1 A) urethanes or ureas, PA1 B) acrylic or methacrylic compounds containing hydroxyl groups, PA1 C) paraformaldehyde and PA1 D) if appropriate, polyols, wherein, in the case where no polyol D) is also reacted, the reaction is carried out in the presence of an acid ion exchanger, and in the case where a polyol D) is also reacted, the reaction is carried out in the presence of an acid ion exchanger or a strong acid. These binders are suitable as coating compositions which can be cured by electron beams or by UV light.

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