Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1988-06-13
1989-07-04
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524291, 524292, 524295, 524296, 524298, 524299, C08L 2502
Patent
active
048451428
ABSTRACT:
Optical devices such as optical disk substrates and lenses are prepared by molding a resin composition comprising 100 parts by weight of a mixture of 30 to 70% by weight of a polymer in which 50% by weight or more is composed of aromatic vinyl monomer units and 70 to 30% by weight of a polyphenylene ether, and 0.005 to 2 parts by weight of an organic carboxylic acid.
REFERENCES:
patent: 4373065 (1983-02-01), Prest, Jr.
patent: 4460743 (1984-07-01), Abe et al.
Manabe Kenji
Niwano Masahiro
Schofer Joseph L.
Smith Jeffrey T.
Sumitomo Chemical Company Limited
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