Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1993-08-30
1994-12-13
Schofer, Joseph L.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
264317, 26433118, 164 45, B29C 3340
Patent
active
053727681
ABSTRACT:
A two-phase thermoplastic composition adapted for forming thermoplastic patterns. The composition comprises an organic thermoplastic pattern material and at least about 5% by weight of discrete particles of cross-linked poly(methylmethacrylate) that are physically stable at temperatures above 130.degree. F. Also disclosed are investment casting patterns of such composition and processes utilizing such composition.
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Billmeyer, Jr.; Fred W., Textbook of Polymer Science, Third Ed., John Wiley & Sons, New York, 1984, pp. 436-453.
Hawley's Condensed Chemical Dictionary, Eleventh Ed., Van Nostrand Reinhold, New York, 1987, pp. 34-35 and 1233.
Delmendo R. H.
Schofer Joseph L.
Yates Manufacturing Co.
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