This invention relates to a cyanoacrylate composition comprising at least one rubber toughening compound; and at least one β-alkoxyalkyl cyanoacrylate. The rubber toughening compound and β-alkoxyalky cyanoacrylate are well compatible with each other so that high odor alkyl cyanoacrylates, such as ethyl cyanoacrylate, is not needed in the composition. The cured product of cyanoacrylate composition exhibits excellent side impact and T-peel strength to various of metals.

This invention relates to a cyanoacrylate composition comprising at least one rubber toughening compound; and at least one β-alkoxyalkyl cyanoacrylate. The rubber toughening compound and β-alkoxyalky cyanoacrylate are well compatible with each other so that high odor alkyl cyanoacrylates, such as ethyl cyanoacrylate, is not needed in the composition. The cured product of cyanoacrylate composition exhibits excellent side impact and T-peel strength to various of metals.

An easily water-dismantlable adhesive composition containing a 2-cyanoacrylate compound represented by Formula (1): in which L.sup.1's each independently represent —CH.sub.2CH.sub.2—, —CH(R.sup.1)CH.sub.2—, or —CH.sub.2CH(R.sup.1)—, R.sup.1 represents an alkyl group having 1 to 3 carbon atoms, R.sup.2 represents a linear or branched alkyl group having 1 to 4 carbon atoms, p represents an integer of 3 to 6, and, among p -L.sup.1-O—'s in Formula (1), 2 to 4 -L.sup.1-O—'s are —CH.sub.2CH.sub.2—O—, and 0 to 2 -L.sup.1-O—'s are —CH(R.sup.1)CH.sub.2— and/or —CH.sub.2CH(R.sup.1)—O—.

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Cyanoacrylate compositions are provided, which when cured provide improved hot strength performance without compromising thermal resistance performance.

Cyanoacrylate compositions are provided, which when cured provide improved hot strength performance without compromising thermal resistance performance.

An easily water-disintegrable adhesive composition contains a 2-cyanoacrylate compound and a water-soluble compound, and wherein a cured product of the adhesive composition has a water absorption rate of 5% or higher when immersed in 40° C. water for 24 hours. The cured product of the adhesive composition preferably has a water absorption rate of 5% or higher when immersed in 23° C. water for 24 hours.

A package system suitable for sterilizing cyanoacrylate compositions and providing the sterile cyanoacrylate compositions a shelf life of at least 24 months, wherein the package system comprises: an ampoule comprising a chamber comprising a cyanoacrylate monomer, wherein the chamber is defined by an opening and sidewalls, wherein the ampoule comprises a material comprising a cyclic olefin copolymer; a multilayer foil seal sealing the opening of the ampoule; and a secondary package housing the ampoule.

A package system suitable for sterilizing cyanoacrylate compositions and providing the sterile cyanoacrylate compositions a shelf life of at least 24 months, wherein the package system comprises: an ampoule comprising a chamber comprising a cyanoacrylate monomer, wherein the chamber is defined by an opening and sidewalls, wherein the ampoule comprises a material comprising a cyclic olefin copolymer; a multilayer foil seal sealing the opening of the ampoule; and a secondary package housing the ampoule.

This invention relates to photocurable electron deficient olefin-containing compositions, such as those containing certain 2-cyanoacrylates, 2-cyanopentadienoates, methylidene malonates, and vinylidine cyanide, and photolatent bases. When exposed to radiation in the electromagnetic spectrum, the compositions show a delay cure property.

This invention relates to photocurable electron deficient olefin-containing compositions, such as those containing certain 2-cyanoacrylates, 2-cyanopentadienoates, methylidene malonates, and vinylidine cyanide, and photolatent bases. When exposed to radiation in the electromagnetic spectrum, the compositions show a delay cure property.