Methacrylic resin composition and method for production thereof

Details Methacrylic resin composition and method for production thereof Methacrylic resin composition and method for production thereof

1995-04-18

1996-06-18

Szekely, Peter A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

524312, 524317, 524379, 524385, 524487, 524488, 524489, 526 88, C08F12018, C08F 234, C08K 501, C08K 510

Patent

active

055278698

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: 5252440 (1993-10-01), Sato et al.

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