Electron beam-crosslinkable plastisol
AssigneeNippon Zeon Co., Ltd.
InventorsEitaro Nakamura, Kazunori Ueki
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Abstract
An electron beam-crosslinkable plastisol is provided comprising, as requisite components, (A) a particulate epoxy group-containing paste resin for plastisol processing having an epoxy group concentration on the particle surface of 1.times.10.sup.-5 to 1.times.10.sup.-3 g equivalent/g and an average particle size of 0.05 to 5 .mu.m, (B.sub.1) an unsaturated acid having a pKa less than 4, (B.sub.2) an amino group-containing unsaturated compound, and (C) a plasticizer. This plastisol can effectively be crosslinked by application of an electron beam of low-speed energy to give moldings having suitable properties.
Claims20
An electron beam-crosslinkable plastisol comprising (A) a particulate epoxy group-containing vinyl chloride or methyl methacrylate paste resin for plastisol processing having an epoxy group concentration on the particle surface of 1.times.10.sup.-5 to 1.times.10.sup.-3 g equivalent/g and an average particle size of 0.05 to 5 .mu.m, (B.sub.1) an ethylenically unsaturated acid having a pKa less than 4, (B2) an amino group-containing ethylenically unsaturated compound or a mixture of (B.sub.1) and (B.sub.2), and (C) a plasticizer.
An electron beam-crosslinkable plastisol comprising (A) a particulate epoxy group-containing vinyl chloride paste resin for plastisol processing having an epoxy group concentration on the particle surface of 1.times.10.sup.-5 to 1.times.10.sup.-3 g equivalent/g and an average particle size of 0.05 to 5 .mu.m, (B.sub.1) an olefinically saturated acid having a pKa less than 4, and (C) a plasticizer.
An electron beam-crosslinkable plastisol consisting essentially of (A) a particulate crosslinkable epoxy group-containing vinyl chloride paste resin for plastisol processing having an epoxy group concentration on the particle surface of 1.times.10.sup.-5 to 1.times.10.sup.-3 g equivalent/g and an average particle size of 0.05 to 5 .mu.m, (B.sub.2) an amino group-containing unsaturated compound and (C) a plasticizer.
An electron beam-crosslinkable plastisol comprising (A) a particulate epoxy group-containing methyl methacrylate paste resin for plastisol processing having an epoxy group concentration on the particle surface of 1.times.10.sup.-5 to 1.times.10.sup.-3 g equivalent/g and an average particle size of 0.05 to 5 .mu.m, (B.sub.1) an olefinically unsaturated acid having a pKa less than 4, and (C) a plasticizer.
An electron beam-crosslinkable plastisol comprising (A) a particulate epoxy group-containing methyl methacrylate paste resin for plastisol processing having an epoxy group concentration on the particle surface of 1.times.10.sup.-5 to 1.times.10.sup.-3 g equivalent/g and an average particle size of 0.05 to 5 .mu.m, (B.sub.2) an amino group-containing unsaturated compound, and (C) a plasticizer.
An electron beam-crosslinkable plastisol consisting essentially of (A) a particulate epoxy group-containing vinyl chloride paste resin for plastisol processing having an epoxy group concentration on the particle surface of 1.times.10.sup.-5 to 1.times.10.sup.-3 g equivalent/g and an average particle size of 0.05 to 5 .mu.m,
- wherein the epoxy group-containing paste resin (A) is a copolymer of vinyl chloride with an epoxy group-containing monomer selected from a glycidyl ether of unsaturated alcohol, a glycidyl ester of unsaturated acid and an epoxy group-containing unsaturated hydrocarbon,
- (B.sub.2) an amino group-containing unsaturated compound,
- wherein the amino group-containing unsaturated compound (B.sub.2) is selected from the dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, N-t-butylaminoethyl (meth)acrylate and dimethylaminopropyl-(meth)acrylamide, and
- (C) a plasticizer.
Dependencies are inferred from the claim text.