Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1982-11-10
1985-07-16
Seccuro, Carman J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525227, 525309, 525304, 525305, 433171, 106 35, C08L 2706, C08L 3308, C08L 3310, C08L 3502
Patent
active
045297770
ABSTRACT:
A dental casting resin wherein the finished casting has a combined vinyl resin content of from 5 to 60% by wt. prepared by polymerizing liquid monomer, e.g. methyl methacrylate, in the presence of at least one vinyl resin and at least one acrylic resin, wherein said monomer is a non-solvent at room temperature for said vinyl resin and wherein the volume ratio of solid resins to liquid monomer is at least about 3.5:1.
REFERENCES:
patent: 2315503 (1943-04-01), Crowell
patent: 3957916 (1976-05-01), Tanno et al.
patent: 4115479 (1978-09-01), Daidone
Seccuro Carman J.
Sommer Evelyn M.
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