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
1994-05-26
1996-04-23
Szekely, Peter A.
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...
524312, 524379, 524385, 524487, 524488, 524489, C08K 510, C08K 505, C08K 501, C08L 9106
Patent
active
055104088
ABSTRACT:
A composition of methacrilic resin which constitutes a resin possessing an outstandingly easy release from the mold of injection molding machine without defilement of the stamper and the peripheral ring of stamper holder, and therefore proves suitable material for replica of raser disk is provided. This methacrylic resin composition is characterized by having incorporated in a methyl methacrylate copolymer the three lubricant components, i.e. a higher alcohol (x), a monoglyceride of a higher fatty acid (y), and a paraffin (z), in such amounts that the individual contents of (x), (y), and (z) are in the respective ranges of 0.05 to 0.2% by weight, 0.05 to 0.2% by weight, and 0.02 to 0.15% by weight and the total content of (x), (y), and (z) is in the range of 0.2 to 0.35% by weight.
REFERENCES:
patent: 4510279 (1985-04-01), Kishimura et al.
patent: 5252440 (1993-10-01), Sato et al.
British Search Report dated Sep. 2, 1994 in corresponding British application No. GB 9410823.0.
Copy of Taiwanese Office Action calling attention of Japanese reference No. 2-166148 with English translation, dated Feb. 7, 1995.
Fuchigami Yoshio
Kobayashi Yosokichi
Matsumaru Shigeo
Warino Kouichi
Hueschen Gordon W.
Kuraray Co. Ltd.
Szekely Peter A.
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