公开(公告)号：US20220228027A1

公开(公告)日：2022-07-21

申请号：US17611757

申请日：2020-06-16

申请人： ALLNEX BELGIUM S.A.

发明人： Jurgen VAN HOLEN ,  Guido VANMEULDER ,  Michel TIELEMANS

IPC分类号： C09D175/14 ,  C08G18/73 ,  C08G18/67 ,  C08K5/17 ,  C09D7/48 ,  C09D7/63

摘要： A radiation curable and at least partially biobased urethane (meth)acrylate for use in a one-component 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%, preferably at least 50%, as determined by method A of the standard ASTM D6866-12: 2008, and b. A (meth)acrylate compound, different from compound a, and containing a reactive group capable to react with isocyanate groups.

公开(公告)号：US20220235245A1

公开(公告)日：2022-07-28

申请号：US17614674

申请日：2020-06-26

申请人： ALLNEX BELGIUM S.A.

发明人： Jurgen VAN HOLEN ,  Guido VANMEULDER

IPC分类号： C09D175/16 ,  C08G18/42 ,  C08G18/67 ,  C08G18/75 ,  C08G18/28 ,  C08G18/12 ,  C08J5/04 ,  C09D7/63

摘要： The invention provides a radiation curable gel coat composition for fibers reinforced substrates, comprising a gel coat resin and at least one diluent monomer (B), wherein the gel coat resin comprises urethane (meth)acrylate reaction products (A) of a reaction mixture comprising: (a) a hydroxy-terminated polyol having a weight average molecular weight of about 200 to about 4000, this polyol being a polycaprolactone polyol or a [(poly)carbonate-(poly)caprolactone]polyol; (b) a diisocyanate; and (c) a hydroxyalkyl (meth)acrylate, and wherein both the diluent monomer (B) and the reaction product (A) contain polymerizable ethylenic unsaturated groups, preferably (meth)acrylate groups. Such gel coat composition provides adequate surface appearance and maintain color and high gloss when exposed to outdoor circumstances.