公开(公告)号：US20210340402A1

公开(公告)日：2021-11-04

申请号：US17282570

申请日：2019-12-18

Applicant: SIKA TECHNOLOGY AG

Inventor： Stephen GLOVER ,  Alexander COWARD ,  Mark GATRELL ,  Mike BYRNE

IPC: C09D175/14 ,  C08G18/73 ,  C08G18/67 ,  C08G18/42 ,  C08G18/08 ,  C08G18/24 ,  C08G18/10 ,  C08J7/04 ,  E04D5/10 ,  E04F15/16 ,  E04B1/66

Abstract: A multi-component composition contains a) a polyol component having a1) acrylate polyol and a2) at least one of polyester polyol and polyether polyol, wherein the equivalent ratio of hydroxyl groups of acrylate polyol to hydroxyl groups of the at least one of polyester polyol and polyether polyol is in the range of 0.4 to 3.8, and b) an isocyanate component containing b1) aliphatic polyisocyanate monomer, dimer and/or trimer, and b2) aliphatic polyisocyanate prepolymer, wherein the equivalent ratio of isocyanate groups of aliphatic polyisocyanate monomer, dimer and/or trimer to isocyanate groups of aliphatic polyisocyanate prepolymer is in the range of 0.5 to 2.6. The multi-component composition is suitable for use as a top coat on elastic membranes, in particular roofing membranes, to provide sufficient weathering resistance/protection.

公开(公告)号：US20230183478A1

公开(公告)日：2023-06-15

申请号：US17921147

申请日：2021-05-04

Applicant: SIKA TECHNOLOGY AG

Inventor： Jordan HOLMES ,  Alison THOMSON ,  Stephen GLOVER ,  Michelle ROUND ,  Alexander COWARD ,  Mark GATRELL ,  Mike BYRNE

IPC: C08L75/02 ,  C08G18/10 ,  C08G18/48 ,  C08G18/38

CPC classification number: C08L75/02 ,  C08G18/10 ,  C08G18/3857 ,  C08G18/4825 ,  C08G2150/00 ,  C08G2190/00

Abstract: A polyurea composition containing monomeric diisocyanates in an amount of max. 0.5 wt.% and consisting of a first component containing a primary, aromatic diamine and a second component containing an isocyante-group-containing polyether urethane polymer containing monomeric diisocyantes in an amount of max. 0.5 wt.% and an aliphatic polyisocyanate with an NCO content of 8 to 25 wt.%.