Patent · US Expired

Paint resin and its use for powder coating

US4910046A · kind A · utility

5Cited by

5References

15Claims

0Family size

Assignees

EC Erdolchemie GmbH · DE
BAYER HEALTHCARE LLC · DE

Inventors

Jens Herwig · Cologne, DE
Hans-Heribert Burgdorfer · Cologne, DE
Dieter Woltjes · Dormagen, DE

Key dates

Filing date	Oct 25, 1988
Grant date	Mar 20, 1990
Priority date	—
Expiry date	Oct 25, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F8/44
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A paint resin for powder coating is described which consists of modified high-pressure polyethylene (LDPE) and is characterized by PA0 (a) a content from 0.1 to 1 mol %, based on the total number of moles of all monomers, of unsaturated carboxylic acids present as copolymerized units, and/or the equivalent content of carboxylic anhydrides, PA0 (b) a neutralization degree of the carboxyl groups, which can also originate from anhydride groups, from 0 to less than 50%, PA0 (c) a termonomer content from 0 to 5 mol %, based on the total number of moles of all monomers, PA0 (d) a melt flow index from 20 to 200 g/10 minutes (190.degree. C.; 2.16 kp) and PA0 (e) a particle size from 1 to 600 .mu.m, as well as the use thereof in a process for powder coating.

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