	US 12,305,069 B2
	Biobased urethane (meth)acrylate for use in cladding
Jurgen Van Holen, Ninove (BE); Guido Vanmeulder, Lot (BE); and Michel Tielemans, Wemmel (BE)
Assigned to ALLNEX BELGIUM S.A., Drogenbos (BE)
Appl. No. 17/611,757
Filed by ALLNEX BELGIUM S.A., Drogenbos (BE)
PCT Filed Jun. 16, 2020, PCT No. PCT/EP2020/066544 § 371(c)(1), (2) Date Nov. 16, 2021, PCT Pub. No. WO2020/254276, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 19180779 (EP), filed on Jun. 18, 2019.
Prior Publication US 2022/0228027 A1, Jul. 21, 2022
Int. Cl. C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 18/67 (2006.01); C08G 18/73 (2006.01); C08G 61/04 (2006.01); C08K 5/17 (2006.01); C09D 7/48 (2018.01); C09D 7/63 (2018.01); C09D 175/14 (2006.01)

CPC C09D 175/14 (2013.01) [C08G 18/6755 (2013.01); C08G 18/73 (2013.01); C08K 5/17 (2013.01); C09D 7/48 (2018.01); C09D 7/63 (2018.01)]

22 Claims

1. A radiation curable and at least partially biobased urethane (meth)acrylate for use in a coating composition for cladding an outdoor surface of a building, obtained from the reaction of at least the following compounds:

a. a polyisocyanate compound having a biobased carbon content of at least 20%, as determined by method A of the standard ASTM D6866-12:2008, wherein the polyisocyanate compound comprises an oligomer of a diisocyanate, and

b. a (meth)acrylate compound, different from compound a, and containing a reactive group capable to react with isocyanate groups.