AQUEOUS EMULSION COMPOSITION OF ISOCYANATE

• Main Authors: YANAGIUCHI KAZUO, YAMAZAKI TAKAYOSHI
• Format: Patent
• Language: English
• Published: 30.08.1994
• Edition: 5
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

PURPOSE:To obtain the subject composition providing an aqueous coating compound having excellent weather resistance, durability, etc., because of exhibition of high weather resistance, a high solid content concentration, low viscosity, readily water diluting properties and a long pot life by adding a specific compound to a specific copolymer solution. CONSTITUTION:(D) A compound of formula III (R3 is 1-4C alkyl; (m) is 5-120; X is di- or polyisocyanate residue and contains free NCO) is added to a copolymer solution obtained from (A) 1-80wt.% of meta-isopropenyl-alpha,alpha-dimethylbenzyl isocyanate of formula I, (B) 10-80wt.% monomer of formula II (R1 is H or CH3; R2 is 1-4C alkyl; (n) is 5-100)[e.g. methoxypolyethylene glycol (meth) acrylate] and (C) 10-80wt.% of an alpha,beta-ethylenic unsaturated monomer copolymerizable with the components A and B in such a way that the amount of the copolymer solution is 5-95wt.% based on the total amount of the composition and the ratio of NCO in the copolymer solution to NCO in the component D is 0.1/9.9 to 9.9/0.1 to give the objective composition.