Pre-copolymer comprising diallyl phthalate and triallyl isocyanurate
AssigneeNippon Kasei Chemical Company Limited
InventorsAkinori Kameyama, Hiroyasu Saito, Jihei Inomata
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Abstract
Disclosed is a pre-copolymer containing diallyl phthalate units and triallyl isocyanurate units.
Claims6
A pre-copolymer comprising either diallyl orthophthalate units or diallyl isophthalate units and triallyl isocyanurate units, and having a melting point of 50.degree. to 200.degree. C. and a number average molecular weight of 5,000 to 15,000, the molar ratio of diallyl orthophthalate units to triallyl isocyanurate units in said pre-copolymer being in the range of from 95:5 to 40:60, or the molar ratio of diallyl isophthalate units to triallyl isocyanurate unites in said pre-copolymer being in the range of from 95:5 to 30:70.
A process for producing a pre-copolymer consisting of either diallyl orthophthalate units or diallyl isophthalate units and triallyl isocyanurate units by heating and copolymerizing a monomeric mixture of diallyl orthophthalate or diallyl isophthalate and triallyl isocyanurate, wherein the molar ratio of diallyl orthophthalate units to triallyl isocyanurate units is the range of 95:5 to 40:60, or wherein the molar ratio of diallyl isophthalate units to triallyl isocyanurate units is in the range of 95:5 to 30:70, at a temperature of 100.degree. to 200.degree. C. in the presence of molecular oxygen blown into the reaction system or in the presence of a polymerization initiator selected from the group consisting of lauroyl peroxide, benzoyl peroxide and azobis-isobutylonitrile.
Dependencies are inferred from the claim text.