RE-EMULSIFIABLE POWDERED RESIN, AQUEOUS EMULSION AND ADHESIVE COMPOSITION BASED ON SAID EMULSION Russian patent published in 2011 - IPC C08L29/04 C09J129/04 

FIELD: chemistry.

SUBSTANCE: present invention relates to a re-emulsifiable powdered resin. Described is a re-emulsifiable powdered resin obtained from an aqueous emulsion of synthetic resin which contains a hydrophobic monomer as a copolymerising monomer, whose solubility in water at 20°C is 0.1% or less, in amount of 30 wt % or more in terms of the total number of all copolymerising monomers, dispersed and stabilised using a resin based on polyvinyl alcohol, modified with acetoacetic groups whose degree of saponification is equal to or greater than 90 mol %, degree of modification with acetoacetic groups lies between 0.01-10 mol %, and average degree of polymerisation lies between 50 and 2000. Described also is an aqueous emulsion obtained through re-emulsion of the said re-emulsifiable powdered resin. Described is an adhesive composition which contains the said re-emulsifiable powdered synthetic resin. The invention also describes an adhesive composition containing said aqueous emulsion.

EFFECT: obtaining re-emusifiable powdered resin for preparing an aqueous emulsion which forms a film with excellent water resistance, resistance to warm water and boiling.

13 cl, 1 tbl, 8 ex