# US 9,518,201 B2 · Adhesive composition that can be peeled after crosslinking > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,518,201 B2 - Document ID: US9518201B2 - Status: Granted - Kind: B2 - Application number: 12/642,197 - Filed: 2009-12-18 - Published: 2010-06-24 - Granted: 2016-12-13 - Earliest claimed: 2008-12-18 - Assignees: Bostik SA - Applicants: Virginie Cagan; Karen Blachere; Patrick Michel Mas; Fabrice Herblot - Inventors: Virginie Cagan; Karen Blachere; Patrick Michel Mas; Fabrice Herblot - Web page: https://patentgrep.com/patent/US9518201B2 ## CPC - C09J 143/04: Homopolymers or copolymers of monomers containing silicon - C08G 18/4825: {Polyethers containing two hydroxy groups (C08G18/4833 - C08G18/5096 take precedence)} - C08G 18/718: {containing silicon} - C08G 18/755: {and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate} - C08G 65/336: containing silicon - C08L 33/06: of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical - C08L 71/02: Polyalkylene oxides - C08L 75/04: Polyurethanes - C08L 75/08: from polyethers - C09J 133/06: of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical - C09J 171/02: Polyalkylene oxides - C09J 175/08: from polyethers - C09J 183/06: containing silicon bound to oxygen-containing groups (C09J183/12 takes precedence) - C08G 18/10: Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step - C08G 2650/58: Ethylene oxide or propylene oxide copolymers, e.g. pluronics - C08L 43/04: Homopolymers or copolymers of monomers containing silicon - C08L 83/00: Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers - C08L 83/06: containing silicon bound to oxygen-containing groups (C08L83/12 takes precedence) - C08L 2666/02: Organic macromolecular compounds, natural resins, waxes or and bituminous materials - C09J 175/04: Polyurethanes - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract The present invention involves an adhesive composition and a method for its-use, especially by consumers, for fastening various articles, for example for the purposes of fitting out or decorating dwellings. ## Claims ### Claim 1 An adhesive composition comprising: (i) from 58 to 80% by weight of a moisture-crosslinkable polymer (A) comprising at least: as main chain, a polyurethane (A2) having a number-average molecular weight between 600 Da and 60 kDa, being the condensation product of a polyether polyol and/or a polyester polyol with polyisocyanates, and an alkoxysilane terminal radical of formula (I), —Si(R1)p(OR2)3-p (I) in which: R1 and R2, which are identical or different, each represent a linear or branched alkyl radical having 1 to 4 carbon atoms, and when there are multiple R1 radicals, the R1 radicals may be identical or different, and when there are multiple R2 radicals, the R2 radicals may be identical or different; p is an integer equal to 0, 1 or 2; said alkoxysilane radicals being connected to the main chain directly by its available bond or indirectly (ii) from 8 to 20% by weight of a silica (B) having a BET specific surface area between 150 and 250 m2/g; (iii) from 4 to 15% by weight of an oligomer of a vinyl derivative of an alkoxyalkylsilane (C) having a number-average molecular weight between 500 Da and 5 kDa, (iv) from 0.01 to 3% by weight of a crosslinking catalyst (D), and (v) from 0.1 to 5% by weight of rubber granulates of non-spherical shape having a size between 0.5 and 2 mm. ### Claim 2 (depends on 1) The adhesive composition according to claim 1, wherein the composition comprises from 60 to 77% of polymer (A), from 10 to 18% of pyrogenic silica (B), from 5 to 12% of oligomer (C) and from 0.1 to 2% of catalyst (D). ### Claim 3 (depends on 1) The adhesive composition according to claim 1, wherein the composition comprises, in addition, up to 3% of a hydrolysable alkoxysilane derivative, as a desiccant. ### Claim 4 (depends on 1) A method for fastening an article to a substrate included in the floors, vertical surfaces and/or ceilings of dwellings, comprising: (a) depositing the adhesive composition as defined in claim 1 in the form of a bead having a diameter of 2 to 10 mm onto the surfaces of the article or of the substrate intended to be in contact; (b) applying the article to the substrate by simple manual pressure; then (c) crosslinking said adhesive composition under the effect of atmospheric moisture over a time between 1 hour and 48 hours. ### Claim 5 (depends on 4) The method according to claim 4, wherein the substrate is included in a vertical surface, and the bead of adhesive composition is deposited on the planar surface of the article intended to be brought into contact with the substrate. ### Claim 6 (depends on 5) The method according to claim 5, wherein the weight of the article to be fastened corresponds to a shear stress exerted on the joint constituted of the crosslinked adhesive composition, wherein the shear stress ranges from 3 to 20 kg/cm2. ### Claim 7 (depends on 4) The method according to claim 4, wherein the article to be fastened can be used for the purposes of outfitting or decorating a dwelling. ### Claim 8 (depends on 5) The method according to claim 5, wherein the bead of adhesive composition is placed on the upper half of the planar surface of the article intended to be in contact with the substrate, in the vicinity of the line of contact between said surface and the substrate. ### Claim 9 (depends on 4) A method for separating the article attached to a substrate in accordance with the method defined in claim 4, comprising the implementation of an adhesive failure. ### Claim 10 (depends on 1) The adhesive composition according to claim 1, wherein the size of the non-spherical shape rubber granulates is between 0.8 and 1.2 mm. ### Claim 11 (depends on 4) The method according to claim 4, wherein the substrate is part of a floor, vertical surface or ceiling of a dwelling. ### Claim 12 (depends on 4) The method according to claim 4, wherein the bead has a diameter from 4 to 10 mm. ### Claim 13 (depends on 4) The method according to claim 4, wherein the crosslinking is over a time between 4 hours and 24 hours. ### Claim 14 (depends on 1) The adhesive composition according to claim 1, wherein the oligomer is obtained by oligomerization of a vinyl derivative of an alkoxyalkylsilane. ### Claim 15 (depends on 1) The adhesive composition according to claim 1, wherein the polymer (A) has the formula (II): in which: R1 and R2, which are identical or different, each represent a linear or branched alkyl radical having 1 to 4 carbon atoms, and when there are multiple R1 radicals, the R1 radicals may be identical or different, and when there are multiple R2 radicals, the R2 radicals may be identical or different; R3 represents a hydrocarbon divalent radical comprising from 5 to 15 carbon atoms which may be aromatic or aliphatic, linear, branched or cyclic; R4 represents a linear or branched alkylene divalent radical comprising from 1 to 4 carbon atoms; R5 represents a linear alkylene divalent radical comprising from 1 to 3 carbon atoms; n is an integer such that the number-average molecular weight of the polyether block of formula [OR4]n— is between 300 Da and 30 kDa; m is an integer such that the number-average molecular weight of the polymer of formula (II) is between 600 Da and 60 kDa; and p is an integer equal to 0, 1 or 2.