Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1992-11-25
1994-03-29
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524296, 524298, 524315, 525902, 523201, C08K 512, C08K 511
Patent
active
052985423
ABSTRACT:
An acrylic ester copolymer plastisol composition comprises (A) copolymer particles comprising, as the major components thereof, (a) 98 to 50 weight % of an alkyl acrylate unit having an alkyl group of 1 to 8 carbon atoms and/or an alkyl methacrylate unit having an alkyl group of 1 to 8 carbon atoms and (b) 2 to 50 weight % of a diene monomer unit, (B) a plasticizer and, optionally, (C) a vulcanizing agent. Another acrylic ester copolymer plastisol composition comprises (A) copolymer particles comprising an ionic crosslinked copolymer prepared by ionic crosslinking of a copolymer comprising, as the major components thereof, (a) 97 to 50 weight % of an alkyl acrylate unit having an alkyl group of 1 to 8 carbon atoms and/or an alkyl methacrylate unit having an alkyl group of 1 to 8 carbon atoms, (b) 2 to 40 weight % of a diene monomer unit and (c) 1 to 20 weight % of a radical polymerizable unsaturated carboxylic acid unit of 3 to 8 carbon atoms having a carboxyl group and (B) a plasticizer. The ionic crosslinking is made through the carboxyl group in the copolymer by addition of a monovalent or divalent metal cation. The acrylic ester copolymer plastisol composition has excellent storage stability even when generally used inexpensive plasticizers are used, gives a molded sheet showing no bleeding and generates no toxic gas on heating to a high temperature, on burning or in case of fire.
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Kagoshima Yutaka
Nagase Toshio
Nakamura Eitaro
Nakayama Akira
Tsukamoto Atsushi
Michl Paul R.
Nippon Zeon Co. Ltd.
Szekely Peter
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