KR930700618A - Alpha (α) -cyanoacrylate adhesive composition - Google Patents

Abstract

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Description

Alpha (α) -cyanoacrylate adhesive composition

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Claims (13)

An α-cyanoacrylate and cure accelerator based adhesive composition, characterized in that it contains hydroxyl derivatives of α-, β- and / or γ-cyclodextrin that are at least partially soluble in α-cyanoacrylate. A hydroxyl group derivative of α-, β- and /-γ-cyclodextrin that is at least partially soluble in α-cyanoacrylate, according to claim 1, containing from 0.001% to 5% by weight of the adhesive composition, The cyclodextrin derivative is in the form of a true solution, in an amount of at least 0.001% by weight, preferably 0.005% to 1% by weight, more preferably 0.03% to 0.3% by weight, in the α-cyanoacrylate. Adhesive composition, characterized in that present. 3. The method according to claim 1 or 2, wherein the hydroxyl group reacts with a degree of derivatization of 20 to 100%, preferably at least 50%, of a-, β- and / or γ-cyclodextrins. Adhesive composition, characterized in that it contains a derivative. 4. The hydroxyl group according to claim 1, wherein the hydroxyl group contains derivatives of α-, β- and / or γ-cyclodextrins induced by etherification, esterification, silylation and / or urethanization. Adhesive composition made into. The adhesive composition according to any one of claims 1 to 4, which contains derivatives of α-, β- and / or γ-cyclodextrin corresponding to the following general formula (I). (Wherein, R ^2, R ³ and R ⁶ are the same or can be different and can be a hydrogen (R ^2, R ³ and R ⁶ except hydrogen atom in compounds) and / or an alkyl and / or alkylene and / or cycloalkyl groups And / or an alkylaryl group and / or an acyl group and / or a trialkylsilyl group and / or urethane group, n is a number of 6,7 or 8) The substituent according to any one of claims 1 to 5, wherein the substituents R ² , R ³ and R ⁶ in formula I are hydrogen atoms (except for compounds in which R ² , R ³ and R ⁶ are hydrogen atoms) and / or carbon atoms Straight or branched alkyl groups of 12 or less and / or alkylene groups and / or cycloalkyl groups and / or alkylaryl groups of 12 or less carbon atoms and / or acyl groups -C (O) -R 'and / or urethane groups -C (O ) -NR ′ ₂ and / or trialkylsilyl group —SiR ″ ₃ (wherein R ′ is a hydrogen atom, straight or branched chain alkyl or alkylene group or cycloalkyl group or alkylaryl group having 12 or less carbon atoms, halogen, ether Aryl groups which may optionally have substituents such as esters or alkoxy groups, and R ″ is an alkyl group of up to 6 carbon atoms), containing an derivative of α-, β- and / or γ-cyclodextrin Composition. 7. The substituent according to any one of claims 1 to 6, wherein, on a statistical average, ^two substituents of R ² , R ³ and R ⁶ are alkyl, alkylene and / or cycloalkyl groups having 12 or less carbon atoms and And / or an alkylaryl group, wherein one of the substituents R ² , R ³ and R ⁶ is an acyl group, -C (O) -R 'and / or urethane group -C (O) -NR' ₂ , where R 'is Adhesive composition, characterized in that it contains a hydrogen atom, a straight or branched chain alkyl, alkylene, cycloalkyl or alkylaryl group having 12 or less carbon atoms or a derivative which may optionally have a halogen, ether, ester or alkoxy group as a substituent. 8. The compound of claim 1, wherein R ³ or R ⁶ , preferably R ^3, is acyl group —C (O) —R ′ where, A straight or branched chain alkyl, alkylene, cycloalkyl, aryl or alkylaryl group having 12 or less carbon atoms which may optionally have a hydrogen atom, halogen, ether, ester or alkoxy group as a substituent, and the remaining substituents have 12 or less carbon atoms Adhesive composition characterized by containing a derivative of (alpha)-, (beta)-, and / or (gamma) -cyclodextrin which represents a linear alkyl group. Adhesive composition according to any of the preceding claims containing typical additives such as stabilizers, dyes, thickeners, thixotropic agents and / or other promoters. Is a carbamoyl and / or trimethylsilyl group of at least one of substituents R ² , R ³ or R ⁶ in formula (I) (see claim 5), wherein one or all of the other substituents R are hydrogen, an alkyl group, an acyl group, A novel cyclodextrin derivative, characterized in that it is an aralkyl group, carbonate group, trialkylsilyl group and / or carbamoyl group. ※ Note: The disclosure is based on the initial application.