公开(公告)号：US20230044204A1

公开(公告)日：2023-02-09

申请号：US17786808

申请日：2021-01-20

Applicant: SIKA TECHNOLOGY AG

Inventor： Michael SCHLUMPF ,  Riccardo SUTER ,  Samuel JAKOB

IPC: C08L83/06 ,  C08G77/16

Abstract: A two-component silicone composition made of a component A including a hydroxyl-group terminated polydiorganosiloxane P; between 0.05-5.0 wt. % water, relative to component A; and component B including a non-condensable polydiorganosiloxane; a catalyst K cross-linking polydiorganosiloxanes; between 0-50 wt. % of a first organosilane V1 according to formula (I), between 2-60 wt. % of a second organosilane V2 according to formula (II), up to 25 wt. % of organosilanes V3 having hydrolyzable alkoxysilane groups Si—ORa not falling under the formulae (I) and (II), with Ra being a hydrogen atom or monovalent, linear or branched alkyl group with 1-6 carbon atoms, Rb being a divalent, linear or branched alkyl group or alkenyl group with 2-20 carbon atoms, and Rc being a divalent, linear or branched alkyl group with 2-20 carbon atoms containing a secondary amino group; the composition containing less than 10 mole-%, relative to the amount of organosilane V2, of organosilanes with epoxy groups.

公开(公告)号：US20230357510A1

公开(公告)日：2023-11-09

申请号：US18026158

申请日：2021-11-29

Applicant: SIKA TECHNOLOGY AG

Inventor： Riccardo SUTER

IPC: C08G77/08 ,  C08G77/18

CPC classification number: C08G77/08 ,  C08G77/18 ,  C08G2150/00 ,  C08G2170/00 ,  C08G2190/00

Abstract: A two-component silicone composition including a component (A) including at least one hydroxyl-terminated polydiorganosiloxane (P); preferably at least one filler; between 0.05% and 5.0% by weight of emulsified water, based on component (A); and a component (B) including at least one noncondensable polydiorganosiloxane (W) as a plasticizer; at least one organosilane (V) as a crosslinker; at least one catalyst (K) for the crosslinking of polydiorganosiloxanes; wherein all organosilanes (V) preferably have the same hydrolyzable alkoxysilane groups, preferably methoxysilane groups; and catalyst (K) is a tin complex having two mercaptide ligands of formula (V), where ligands (L1) are each independently alkyl mercaptides coordinated via sulfur, especially C6 to C16 alkyl mercaptides, where ligands (L1) optionally have methyldialkoxysilane groups, preferably methyldimethoxysilane groups, and ligands (L2) are each independently alkyl ligands, especially C6 to C14 alkyl ligands; and component (B) contains less than 5% by weight of carbon black based on component (B).

公开(公告)号：US20240166850A1

公开(公告)日：2024-05-23

申请号：US18281328

申请日：2022-04-12

Applicant: SIKA TECHNOLOGY AG

Inventor： Klaas MENNECKE ,  Riccardo SUTER

IPC: C08K5/5419 ,  C08G18/10 ,  C08K5/5425 ,  C08K5/58 ,  C08L101/10 ,  C09D201/10 ,  C09J175/08

CPC classification number: C08K5/5419 ,  C08G18/10 ,  C08K5/5425 ,  C08K5/58 ,  C08L101/10 ,  C09D201/10 ,  C09J175/08 ,  C09J2475/00

Abstract: A component A, including at least one organic silane-group-containing polymer, at least one drying agent, at least one amine having at least one free amino group or latent amino group releasable via hydrolysis, at least one hydrolysable silane without an amino group, and at least one catalyst for crosslinking silane-functional polymers; and including a component B, including between 1 and 75 wt. % water dispersed in a mixture together with filler and/or plasticiser and further additives; and including further additives in component A and/or component B, from the group of fillers; wherein the catalyst is a tin complex having two mercaptide ligands according to formula (V), where ligands L1 independently represent sulfur-coordinated alkyl mercaptides, where ligands L1 include methyl dialkoxysilane groups, methyl dimethoxysilane groups, and ligands L2 independently represent alkyl ligands. The composition allows an exceptionally long pot time and simultaneously very rapid curing and excellent storage stability.