COATING COMPOSITION

PURPOSE:To provide the subject composition causing no spray and reversion unevennesses, excellent in coating workability and durability, useful for e.g. metallic base coating, comprising each specific graft copolymer and modified vinyl copolymer and a polyisocyanate compound. CONSTITUTION:The object...

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Bibliographische Detailangaben
Hauptverfasser:	NAGASAO TSUTOMU, SUKEJIMA HAJIME, MIYATAKE KEIJI, NUMA NOBUSHIGE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS 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
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Beschreibung
Zusammenfassung:	PURPOSE:To provide the subject composition causing no spray and reversion unevennesses, excellent in coating workability and durability, useful for e.g. metallic base coating, comprising each specific graft copolymer and modified vinyl copolymer and a polyisocyanate compound. CONSTITUTION:The objective composition comprising (A) a graft copolymer 60-120 in hydroxyl value prepared by copolymerization between (1) 10-30wt.% of a macromonomer, (2) 0-30wt.% of styrene and (3) 40-90wt.% of another ethylenically unsaturated monomer, (B) a modified vinyl copolymer prepared by copolymerization between (a) 5-75wt.% of cellulose acetate butyrate and (b) 95-25wt.% of a vinyl monomer mixture of 1-50wt.% of at least one kind of OH-contg. functional vinyl monomer and 99-50wt.% of another vinyl monomer, and (C) a polyisocyanate compound, pref. in a weight ratio A/B of (10:90) to (90:10). The amount of the component C to be incorporated is pref. such that the equivalent ratio NCO/OH be 0.52 to 2.0 (where, OH is the sum of the respective hydroxyl groups in the components A and B).