公开(公告)号：US20230138639A1

公开(公告)日：2023-05-04

申请号：US18050090

申请日：2022-10-27

Applicant: BOSTIK SA

Inventor： Régis GUILLOTTE ,  Boris COLIN

IPC: C08G18/83 ,  C08G18/75 ,  C08G18/48 ,  C08G18/10 ,  C09J175/08

Abstract: A process for preparing ionic silylated copolyurethanes comprising two ureido-alkylene-alkoxysilane end groups, comprises: (i) forming a composition of copolyurethanes having—NCO end groups by carrying out a polyaddition reaction between a polyisocyanate, a carboxylic diol and a polyol composition comprising a polyol having an Mn of greater than or equal to 2500 g/mol and a polyol having an Mn of less than 2500 g/mol; (ii) neutralizing the formed product with a tertiary amine; and (iii) reacting with an aminosilane derived from a secondary amine. A composition of ionic silylated copolyurethanes comprising two ureido-alkylene-alkoxysilane end groups, said composition being able to be obtained by means of the process. A crosslinkable adhesive and/or sealant composition comprising the composition and a filler.

公开(公告)号：US20220389219A1

公开(公告)日：2022-12-08

申请号：US17771063

申请日：2020-10-21

Applicant: BOSTIK SA

Inventor： Boris COLIN ,  Régis GUILLOTTE

IPC: C08L75/08 ,  C08G18/08 ,  C08G18/28 ,  C08G18/34 ,  C08G18/48 ,  C08G18/10 ,  C08G18/22 ,  C09J175/08

Abstract: 1) Ionic silylated copolyurethane of formula: in which R1 is a hydrocarbon radical; R2 is a C2-C4 alkylene; n is an integer such that the molecular mass of —[OR2]n is 2500-20 000 g/mol; R∘ is H or C1-C18 alkyl; R, R′ and R″ are a hydrocarbon-based radical; x and y are integers from 1 à 8; z is an integer from 0 to 8; m and q are an integer of greater than or equal to 1, such that q/m ranges from 0.04 to 20; F1 is a radical of formula (IIa) and F2 is a radical of formula (IIb): in which R3 is methylene or n-propylene; R4 and R5 are methyl or ethyl; p is equal to 0 or 1; R6 is a C1-C4 alkyl. 2) Process for preparing copolyurethane 1), comprising: (i) polyaddition between a polyisocyanate, a polyether diol and a carboxylic diol; (ii) neutralization of the product formed with the amine N(R)(R′)(R″); then (iii) reaction with an aminosilane derived from a secondary amine. 3) Composition, usable as sealant and/or adhesive, comprising copolyurethane 1) and a filler.

公开(公告)号：US20200317962A1

公开(公告)日：2020-10-08

申请号：US16768140

申请日：2018-12-13

Applicant: BOSTIK SA

Inventor： Olivier LAFERTE ,  Claire GARNIER ,  Régis GUILLOTTE ,  Jean-Marie BORDAT

IPC: C09J7/38 ,  C09J7/35 ,  C08G18/10 ,  C08G18/28 ,  C08G18/48 ,  C08G18/75 ,  C08G18/76 ,  C08G18/83 ,  C08K5/17 ,  C08K5/09 ,  C08K5/05

Abstract: The present invention relates to a multicomponent adhesive composition comprising: a composition A comprising: at least one silyl polymer comprising at least one hydrolyzable alkoxysilane group; at least one tackifying resin; a composition B comprising: at least one catalyst; at least one compound C chosen from: a compound C1 with a number-average molecular mass ranging from 300 g/mol to 500 000 g/mol; and a compound C2 with a vapor pressure at 20° C. of greater than or equal to 0.08 kPa; and mixtures thereof; the composition A:composition B mass ratio ranging from 99.98:0.02 to 60:40, the total content of catalyst ranging from 0.01% to 10% relative to the total weight of said adhesive composition.