JPH029061B

PURPOSE:To obtain an anti-foaming agent which is well miscible with nonaqueous paints, allows its drying rate and curing rate to be controlled and has an excellent anti-foaming effect, by copolymerizing a polymerizable (meth) acrylate monomer and a polymerizable vinyl ether monomer. CONSTITUTION:An...

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Bibliographische Detailangaben
Hauptverfasser:	OTOMURA HIROSHI, SOTANI SHOICHI, SHIOIRI KAZUNORI, SAWADA NORYOSHI, KOSAKA KAORU
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain an anti-foaming agent which is well miscible with nonaqueous paints, allows its drying rate and curing rate to be controlled and has an excellent anti-foaming effect, by copolymerizing a polymerizable (meth) acrylate monomer and a polymerizable vinyl ether monomer. CONSTITUTION:An anti-foaming agent having an average MW of 2,000-150,000 is obtd. by copolymerizing 30-95wt% polymerizable monomer of formula I (wherein R1 is H, methyl; R2 is a 2-22C alkyl, alkenyl) and 5-70wt% polymerizable monomer of formula II (wherein R3 is a 6-22C alkyl). Examples of the monomers of formula I are acrylates and methacrylates, where R2 is ethyl, isobutyl, benzyl, naphthyl or stearyl. Examples of the monomers of formu la II are vinyl ethers where R3 is 2-ethylhexyl, octyl, palmityl or stearyl.