公开(公告)号：US12006450B2

公开(公告)日：2024-06-11

申请号：US17419130

申请日：2020-04-02

Applicant: SIKA TECHNOLOGY AG

Inventor： Sven Reimann ,  Nicole Kube ,  Michael Schlumpf

IPC: B32B41/00 ,  C08G18/10 ,  C08G18/42 ,  C08G18/48 ,  C08G18/76 ,  C08K3/04 ,  C09J5/00 ,  C09J175/04

CPC classification number: C09J175/04 ,  C08G18/10 ,  C08G18/4233 ,  C08G18/4238 ,  C08G18/4825 ,  C08G18/4841 ,  C08G18/4854 ,  C08G18/7671 ,  C08K3/04 ,  C09J5/00 ,  C09J2301/306 ,  C09J2475/00

Abstract: A moisture-curing composition that is liquid at ambient temperature and optionally highly viscous, containing: at least one polyether urethane polymer (P1) containing isocyanate groups and having a content of at least 80% by wt. 1,2-propyleneoxy units in the polyether segment, and at least one hydrophobic polymer (P2) containing isocyanate groups and being liquid at ambient temperature, obtained by reacting at least one monomeric diisocyanate and a hydrophobic diol having an OH-number ranging between 28 and 120 mg KOH/g, the polymers P1 and P2 being produced separately and said polymers P1 and P2 having a weight ratio ranging between 70/30 and 98/2.

公开(公告)号：US12157844B2

公开(公告)日：2024-12-03

申请号：US17765666

申请日：2020-12-15

Applicant: SIKA TECHNOLOGY AG

Inventor： Nicole Kube ,  Sven Reimann ,  Michael Schlumpf

IPC: B32B41/00 ,  C09J5/02 ,  C09J11/04 ,  C09J175/14 ,  C09J183/04

Abstract: A pretreatment composition for adhesive bonds, including i) between 10 and 30 parts by weight of at least one polyurethane polymer PU containing isocyanate groups, obtained from the reaction of at least one poly(meth)acrylate polyol P and at least one polyisocyanate I1, with the proviso that the poly(meth)acrylate polyol P has an OH number of at least 35 and the polyurethane polymer PU has an NCO content of between 2.0% and 25.0% by weight, based on the polyurethane polymer PU; ii) 0.1 to 10 parts by weight of at least one organosilane OS; iii) 0 to 10 parts by weight of at least one further polyisocyanate I2; iv) 60 to 90 parts by weight of a solvent L; v) 0 to 15 parts by weight of an industrial carbon black; vi) 0 to 10 parts by weight of a fumed hydrophobic silica.