PACKED CYANOACRYLATE COMPOSITIONS Russian patent published in 2010 - IPC C09J4/04 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions which contain cyanoacrylate, as well as a packing rubber component which is essentially transparent and colourless and essentially free from anti-adhesives and anti-oxidants, which are known to lower rate of fixation and stability during storage of cyanoacrylate compositions to which they are added. The cyanoacrylate adhesive composition with a rubber packing material contains: (a) a cyanoacrylate component, and (b) a rubber packing agent essentially consisting of (a) product of combining ethylene, methylacrylate and monomers with carboxylic acid curing centres, (b) double copolymers of ethylene and methylacrylate and combinations of (a) and (b), which is essentially free from anti-adhesives, anti-oxidants, stearic acid and/or polyethylene glycol ester wax. The invention also relates to a method for gluing two substrates together, involving the following steps: depositing the cyanoacrylate-containing adhesive composition in paragraph 1 onto at least one of the substrates and joining the substrates for a period of time sufficient for fixation of the adhesive. Described also is a method of preparing a cyanoacrylate-containing composition involving the following steps: obtaining a cyanoacrylate component and its combination when mixed with a rubber packing agent mainly consisting of (a) products of combining ethylene, methylacrylate and monomers with carboxylic acid curing centres, (b) double copolymers of ethylene and methylacrylate and combinations of (a) and (b), which is essentially free from anti-adhesives, anti-oxidants, stearic acid and/or polyethylene glycol ester wax.

EFFECT: disclosed rubber cyanoacrylate adhesive compositions have improved properties.

20 cl, 4 ex, 13 tbl, 3 dwg