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AssigneeAmerican Can Company
InventorsSheldon I. Schlesinger, Veronica Cochran
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Copolymers of glycidyl methacrylate and allyl glycidyl ether having pendant epoxy groups, having an inherent viscosity of at least about 0.25, preferably within the range of about 0.25 to about 0.38, and an epoxy equivalent of at least about 0.65 epoxide equivalent per 100g. of polymer are provided which upon admixture with a radiation-sensitive aryldiazonium salt provide compositions which exhibit improved sensitivity, curing rates and other properties. Articles for recording and storing information from a laser source and other articles such as microfilm are derived from such compositions by subjecting a coated substrate to an energy source of sufficient intensity to decompose the radiation-sensitive catalyst and thus effect polymerization via the epoxy groups of the copolymer.
A method of polymerizing a copolymer of glycidyl methacrylate and allyl glycidyl ether, said copolymer being derived from reaction of a mixture consisting essentially of the monomers containing from about a 4 to 5 molar excess of glycidyl methacrylate per mole of allyl glycidyl ether and having pendant epoxy groups, an inherent viscosity of at least about 0.25 and an epoxy equivalent of at least about 0.65 epoxide equivalent per 100 grams of polymer, which comprises:
A method of polymerizing a copolymer of glycidyl methacrylate and allyl glycidyl ether, said copolymer being derived from reaction of a mixture consisting essentially of from about 4 to about 5 moles of glycidyl methacrylate per mole of allyl glycidyl ether in the presence of a free-radical polymerization catalyst and a solvent at a temperature below about 100.degree. C, and having pendant epoxy groups, an inherent viscosity of at least about 0.25, and an epoxide equivalent of at least about 0.65 epoxide equivalent per 100 grams of polymer, which comprises:
A method of polymerizing a copolymer of glycidyl methacrylate and allyl glycidyl ether, said copolymer being derived from reaction of from about 4 to about 5 moles of glycidyl methacrylate per mole of allyl glycidyl ether in the presence of a free-radical polymerization catalyst and a solvent at a temperature below about 100.degree. C, and having pendant epoxy groups, an inherent viscosity of about 0.25 to 0.38, and an epoxide equivalent of about 0.65 to 0.74 epoxide equivalent per 100 grams of polymer, which comprises:
Dependencies are inferred from the claim text.