The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Jul. 04, 2017
Allnex Netherlands B.v., RB Bergen op Zoom, NL;
William Weaver, Tyne and Wear, GB;
Robert Watson, Surrey, GB;
Richard Hendrikus Gerrit Brinkhuis, JX Zwolle, NL;
Martin Bosma, Arnhem, NL;
Paul Jones, Greater London, GB;
Steve White, Rayleigh, GB;
Dimitrios Baxevanis, London, GB;
Roberto Cavalieri, Padua, IT;
ALLNEX NETHERLANDS B.V., Bergen op Zoom, NL;
Abstract
The invention relates to a powder coating composition for low temperature curing that can be used on temperature sensitive substrates and, despite of the low curing temperature, has excellent flow properties and forms a coating with excellent appearance and nevertheless also good mechanical and weathering properties. The invention also relates to an advantageous process for the manufacture of the powder coating composition. Said powder coating composition comprises a poly-acid functional polyester component A, a poly-epoxy functional component B, a poly-anhydride functional component C and a thermosetting curing catalyst D. The invention also relates to a polyester for use in the powder coating compositions according to the invention, in particular for durable powder coatings.