公开(公告)号：US12187836B2

公开(公告)日：2025-01-07

申请号：US17312112

申请日：2019-12-18

Applicant: SIKA TECHNOLOGY AG

Inventor： Antonio Corsaro ,  Fabien Choffat

IPC: C08G18/22 ,  C08G18/24 ,  C08G18/32 ,  C08G18/38 ,  C08G18/48 ,  C08G18/76

Abstract: A polyurethane composition consisting of a first component and a second component, wherein the first component contains a polyol having an OH functionality in the range from 1.5 to 4 and an average molecular weight in the range from 250 to 15 000 g/mol, a diol having two hydroxyl groups joined via a C2 to C9 carbon chain, and a compound having at least one thiol group. In addition, one of the two components additionally contains at least one metal catalyst for the reaction of hydroxyl groups and isocyanate groups that is able to form thio complexes, and the molar ratio of all NCO groups in the polyisocyanurates to all OH groups in the polyols is 0.9:1-1.2:1, and the polyurethane composition, directly after mixing of the components at 23° C., is free-flowing, and has a viscosity of

公开(公告)号：US12049575B2

公开(公告)日：2024-07-30

申请号：US17260434

申请日：2019-07-02

Applicant: SIKA TECHNOLOGY AG

Inventor： Martin Demmig ,  Antonio Corsaro

IPC: C09J175/06 ,  C08G18/12 ,  C08G18/32 ,  C08G18/42 ,  C08G18/48 ,  C08G18/50 ,  C08G18/76

CPC classification number: C09J175/06 ,  C08G18/12 ,  C08G18/3206 ,  C08G18/4233 ,  C08G18/4812 ,  C08G18/4825 ,  C08G18/4841 ,  C08G18/5048 ,  C08G18/7671 ,  C08G2170/00 ,  C09J2301/304 ,  C09J2400/163 ,  C09J2475/00

Abstract: A two-component polyurethane adhesive including a polyol component K1 and a polyisocyanate component K2; wherein the polyol component K1 includes at least one diol A1 having two primary hydroxyl groups and a molecular weight in the range from 60 to 150 g/mol, at least one triol A2 having an average molecular weight in the range from 1,000 to 10,000 g/mol, at least one polyester polyol A3 based on dimer fatty acids and/or dimer fatty alcohols, especially based on dimer fatty acids; and the polyisocyanate component K2 includes at least one polyisocyanate B1 and/or at least one polyurethane polymer B2 having isocyanate groups.

公开(公告)号：US12234366B2

公开(公告)日：2025-02-25

申请号：US17291174

申请日：2019-12-18

Applicant: SIKA TECHNOLOGY AG

Inventor： Didier Lootens ,  Maxime Liard ,  Nicolas Bernardini ,  Fleur Chaignon-Lesetre ,  Antonio Corsaro

IPC: B29C64/106 ,  B33Y70/00 ,  C08G18/22 ,  C08G18/32 ,  C08G18/38 ,  C08G18/48 ,  C08G18/66 ,  C08G18/76 ,  C09D11/102 ,  B29K75/00 ,  B33Y10/00

Abstract: A method applying a two-component polyurethane composition by means of 3D printing, including steps providing pumpable first component A including at least one polyol having OH functionality in range from 1.5-4 and average molecular weight Mn in range from 250 to 15 000 g/mol, and at least one diol having two hydroxyl groups joined via a C2-C9 carbon chain, and at least one compound T having at least one thiol group; feeding pumpable second component B into continuous mixer's mixing region, where second component B includes at least one polyisocyanate; wherein one of components A and B additionally includes at least one metal catalyst for reaction of hydroxyl groups and isocyanate groups that is able to form thio complexes, and molar ratio of all thiol groups in at least one compound T to all metal atoms in at least one metal catalyst K is between 1:1 and 250:1.

公开(公告)号：US11518918B2

公开(公告)日：2022-12-06

申请号：US16616879

申请日：2018-05-22

Applicant: SIKA TECHNOLOGY AG

Inventor： Antonio Corsaro ,  Reto Fässler

IPC: C09J175/04 ,  C08G18/28 ,  C08G18/12 ,  C08G18/22 ,  C08G18/24 ,  C08G18/44 ,  C08G18/75 ,  C09J175/08 ,  C09D5/00 ,  C08G18/42 ,  C08G18/62 ,  C08K3/04 ,  C09D7/20

Abstract: Adhesion promoter compositions, containing: a) between 40 and 80 parts by weight of a binder composition, including i) 20-40 wt % of at least one silane-terminated polyurethane polymer STP, which can be obtained from at least one polyol P, aliphatic polyisocyanate I and organosilane OS1, ii) 4-20 wt % of at least one organosilane OS2 and/or organotitanate OT, iii) 0-3 wt % of at least one desiccant, iv) 40-80 wt % of solvent L1; b) between 0-30 parts by weight of industrial carbon black; c) between 0-1 parts by weight of UV marker; d) so much of solvent L2 that sum of a)-d) is 100 parts by weight; OS1 having secondary amino, mercapto or hydroxyl group on organic moiety and the at least one STP having been produced in absence of OS2, and the at least one P having an average OH functionality of at least 2 and equivalent weight of at most 500.

公开(公告)号：US11407893B2

公开(公告)日：2022-08-09

申请号：US16623921

申请日：2018-06-29

Applicant: SIKA TECHNOLOGY AG

Inventor： Urs Burckhardt ,  Michael Schlumpf ,  Antonio Corsaro

IPC: C08L75/04 ,  C08G18/22 ,  C08G18/32 ,  C08G18/38 ,  C08G18/76 ,  C09J175/04

Abstract: A polyurethane composition including a first and a second component, wherein the first component is a polyol with an OH functionality in the range from 1.5 to 4 and a mean molecular weight in the range from 250 to 15,000 g/mol, a diol with two hydroxyl groups which are linked via a C2 to C0 carbon chain, and a compound that includes at least one thiol group. One of the two components also additionally contains at least one metal catalyst for the reaction of hydroxyl groups and isocyanate groups which can form thio complexes, and the second component contains enough polyisocyanate that at least 5% by weight of isocyanate groups, in relation to the total polyurethane composition, are contained, and the molar ratio of all thiol groups of the mentioned compound to all metal atoms of the metal catalyst is between 1:1 and 250:1.

公开(公告)号：US10975276B2

公开(公告)日：2021-04-13

申请号：US15746174

申请日：2016-08-19

Applicant: SIKA TECHNOLOGY AG

Inventor： Antonio Corsaro

IPC: C09J163/00 ,  C09D163/00 ,  C08G59/50 ,  B05D5/10 ,  C08G59/56 ,  C09D5/00 ,  C09J5/02

Abstract: An aqueous adhesion composition comprising: a) at least one dispersed solid epoxy resin (EP); b) at least one amino silane (AS); c) at least one acid (HS); d) at least one amine hardener (AH); and e) water. According to the invention, the adhesion compositions substantially improve, particularly under humid conditions, the adhesion on different substrates. The compositions are storage stable for a longer period of time and have, even after different aging states of the components, essentially no impairment in the action thereof.