公开(公告)号：US12269915B2

公开(公告)日：2025-04-08

申请号：US17782745

申请日：2020-12-17

Applicant: Allnex Netherlands B.V.

Inventor： Elwin De Wolf ,  Bart Noordover ,  Francesca Fallani ,  Sharon Maas ,  Ronald Koeken

IPC: C08G18/62 ,  C08G18/28 ,  C08G18/79 ,  C08K5/21 ,  C08L75/02 ,  C09D5/00 ,  C09D7/40 ,  C09D7/42 ,  C09D7/65 ,  C09D167/00 ,  C09D175/02 ,  C09D175/04

Abstract: A particulate polyurea compound a2) for reducing gloss of coatings, a resin composition and a crosslinkable composition comprising the particulate polyurea compound is provided, wherein the volume percentage of particles of the particulate polyurea compound having a diameter of smaller than 10 μm is equal or less than 40%, and the volume percentage of the polyurea product having a diameter larger than 20 μm is equal or more than 11%.

公开(公告)号：US12281197B2

公开(公告)日：2025-04-22

申请号：US17297468

申请日：2019-12-04

Applicant: ALLNEX NETHERLANDS B.V.

Inventor： Bart Adrianus Johannes Noordover ,  Natasja Looij ,  Brenda Pijper ,  Jurgen Kalis ,  Ronald Koeken

IPC: C08G63/42 ,  C08G63/137 ,  C08G63/85 ,  C09D167/02

Abstract: The invention relates to an RMA crosslinkable polymer comprising: a) at least one RMA Donor moiety X comprising a C—H acidic proton in activated methylene or methine groups, b) at least one moiety Y comprising one or more 5- or 6-membered heterocycles containing an ether-, acetal- or ketal group which in case of two or more of such heterocycles can be fused or linked, wherein the polymer has a weight-average molecular weight Mw of at least 400 g/mol and a C—H equivalent molecular weight CH EQW of at least 80 g/mol. The invention also relates to a process for the preparation of the RMA crosslinkable polymer, to an RMA crosslinkable composition comprising the RMA crosslinkable polymer and coated substrates.