Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1987-08-07
1989-02-21
Ziegler, Jacob
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525193, C08F 800, C08L 3700
Patent
active
048066001
ABSTRACT:
A methyl methacrylate syrup composition comprises an intimate mixture of 1-99 parts by weight of a first polymer-in-monomer syrup (A) and 99-1 parts by weight of a second polymer-in-monomer syrup (B), wherein said syrups (A) and (B) are as follows:
(A) a polymer-in-monomer syrup obtained by copolymerizing a mixture of methyl methacrylate monomer, one or more monomers having reactivity with glycidyl groups and containing at least one ethylenically-unsaturated bond, and one or more monomers not having reactivity with glycidyl groups and containing at least one ethylenically-unsaturated bond;
(B) a polymer-in-monomer syrup obtained by dissolving a copolymer obtained by copolymerizing one or more monomers containing at least one glycidyl group and one or more monomers copolymerizable with glycidyl-containing monomers, having a number average molecular weight of 1,500-50,000 and containing glycidyl groups, in a mixture of monomers comprising one or more monomers selected from the group consisting of methyl methacrylate and a monomer not having reactivity with glycidyl groups and containing at least one ethylenically-unsaturated bond, and one or more monomers having reactivity with glycidyl groups and containing at least one ethylenically-unsaturated bond, and having the resulting solution react until 1-99% of the glycidyl groups contained in the copolymer are reacted.
REFERENCES:
patent: Re322261 (1986-10-01), Hirota et al.
patent: 3954898 (1976-05-01), Hirota et al.
patent: 4042645 (1977-08-01), Hirota et al.
patent: 4617367 (1986-10-01), Watanabe et al.
Ichihara Yoshinobu
Kano Taisaku
Kobayahsi Nobuki
Mitsui Toatsu Chemicals Incorporated
Ziegler Jacob
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