Method for producing an adherent deposit using a chemically activated multi-part, solvent-free composition
AssigneeDymax Corporation
InventorsAndrew G. Bachmann, Stephen E. Cantor
Life of this patent
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Abstract
A multi-part composition is provided which is suitable for use as an adhesive, a potting compound, a coating or a sealant. It consists of a polymerizable acrylate formulation and an activating formulation, the latter usually comprising an amine-aldehyde condensation product diluted with a liquid vinyl ether; liquid epoxides may also be included as diluents in the activating formulation.
Claims23
A method of using a multi-part composition for bonding surfaces to one another, the steps comprising:
- (1) providing a multi-part composition that cures by chemical activation to an adhesive solid, comprising:
- a polymerizable formulation including at least one polymerizable liquid acrylate ingredient;
- and
- an activating formulation including about 2 to 80 percent by weight of a free radical-initiating ingredient that is capable of generating free radicals when reacted with an active oxygen compound and, conversely, about 20 to 98 percent by weight of a reactive diluent, 20 to 100 weight percent of said diluent being a liquid vinyl ether compound and any remaining weight percentage thereof being a liquid epoxy compound, said composition further including an active oxygen compound that is reactive with said initiating ingredient to generate free radicals;
- and
- (2) applying said formulations to at least one surface that is to be bonded;
- and
- (3) bringing another surface that is to be bonded into substantial contact with said one surface under such conditions as to effect admixture of said formulations between said surfaces.
A method of using a multi-part composition for producing an adherent deposit upon a surface, the steps comprising:
- (1) providing a multi-part composition that cures by chemical activation to an adhesive solid, comprising:
- a polymerizable formulation including at least one polymerizable liquid acrylate ingredient;
- and
- an activating formulation including about 0.5 to 80 percent by weight of a free radical-initiating ingredient that is capable of generating free radicals when reacted with an active oxygen compound and, conversely, about 20 to 99.5 percent by weight of a reactive diluent, 20 to 100 weight percent of said diluent being a liquid vinyl ether compound and any remaining weight percentage thereof being a liquid epoxy compound, said composition further including an active oxygen compound that is reactive with said initiating ingredient to generate free radicals;
- (2) admixing said formulations;
- and
- (3) applying the resultant admixture to said surface.
A method of using a multi-part composition for producing an adherent deposit upon at least one surface, the steps comprising:
- (1) providing a multi-part composition that cures by chemical activation to an adhesive solid, comprising:
- a polymerizable formulation including at least one polymerizable liquid acrylate ingredient;
- and
- an activating formulation including about 0.5 to 80 percent by weight of a free radical-initiating ingredient that is capable of generating free radicals when reacted with an active oxygen compound and, conversely, about 20 to 99.5 percent by weight of a reactive diluent, 20 to 100 weight percent of said diluent being a liquid vinyl ether compound and any remaining weight percentage thereof being a liquid epoxy compound, said composition further including an active oxygen compound that is reactive with said initiating ingredient to generate free radicals;
- (2) admixing said formulations;
- and
- (3) applying said formulations to at least said at least one surface, said step (3) being carried out either before or after said step (2).
Dependencies are inferred from the claim text.