Title:
Polystyrene phonograph record composition and method of making same
United States Patent 2779744
Inventors:
Frazier, Groff
Bredgman, Potter Peter
Publication Date:
01/29/1957
Export Citation:
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Assignee:
UNION CARBIDE & CARBON CORP
Primary Class:
523/174
Other Classes:
260/998.16, 524/277, 524/404, 524/443
International Classes:
C08K3/14; C08K3/00
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US Patent References:
2681323Polystyrene phonograph record and process of manufacture
2636867Plastics molding compositions
2593507Methods of molding nonmetallic powders
2582741Phonograph record molding compositions and records
2540146Method for controlled blending of polystyrene with modifiers
2109592Preparation of plastics