公开(公告)号：US11104809B2

公开(公告)日：2021-08-31

申请号：US16314483

申请日：2017-07-04

Applicant: ALLNEX Netherlands B.V.

Inventor： William Weaver ,  Robert Watson ,  Richard Hendrikus Gerrit Brinkhuis ,  Martin Bosma ,  Paul Jones ,  Steve White ,  Dimitrios Baxevanis ,  Roberto Cavalieri

IPC: C09D5/03 ,  C08L63/00 ,  C09D163/00 ,  C09D173/02 ,  C09D167/00 ,  C09D7/63 ,  C09D167/03 ,  C08K5/50 ,  C08L73/02

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.

公开(公告)号：US11920058B2

公开(公告)日：2024-03-05

申请号：US16956814

申请日：2019-01-25

Applicant: Allnex Netherlands B.V.

Inventor： Richard Hendrikus Gerrit Brinkhuis ,  Robert Watson ,  Martin Bosma ,  Petrus Johannes Maria David Elfrink ,  Antonius Johannes Wilhelmus Buser ,  Pengcheng Yang ,  Roberto Cavalieri ,  Massimiliano Censi ,  Robertino Chinellato ,  Alessandro Minesso

IPC: C09D5/03 ,  C08G18/42 ,  C08G18/60 ,  C08G18/62 ,  C08G18/73 ,  C08G18/75 ,  C08J3/12 ,  C08K5/09 ,  C08K5/105 ,  C08L33/08 ,  C08L63/00 ,  C08L75/06

CPC classification number: C09D5/03 ,  C08G18/4211 ,  C08G18/606 ,  C08G18/6225 ,  C08G18/73 ,  C08G18/755 ,  C08J3/12 ,  C08K5/09 ,  C08K5/105 ,  C08L33/08 ,  C08L63/00 ,  C08L75/06 ,  C08G2150/20 ,  C08L2312/00

Abstract: The invention relates to powder coating compositions suitable for low temperature powder coating crosslinking typically at curing temperature is between 75 and 140° C. which can be used for powder coating temperature-sensitive substrates like MDF, wood, plastic or temperature sensitive metal alloys.