Method of manufacturing a reusable mold

Details Method of manufacturing a reusable mold Method of manufacturing a reusable mold

1986-02-13

1989-09-12

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Recycling of reclaimed or purified process material

Of gaseous process material

264 401, 264138, 264139, 264221, 264225, 264317, 264DIG44, 264DIG69, 425142, 425175, 425DIG12, 425DIG46, B29B 1700, B29C 3352

Patent

active

048657832

ABSTRACT:
A method for the manufacture of a mold out of mold material from a previous blank by machining each blank into a desired shape by means of a machine tool controlled by a computer utilizing a dimensioning data set. Each blank is manufactured by feeding an organic polymer material whose melting point is preferably lower than 150.degree. C. in liquid form into a box-shaped container which is open at the top and which corresponds to the dimensions of the desired mold. Waste polymer material from the blank upon machining is recovered and heated to a temperature higher than its melting point, whereupon it is fed onto an existing mold no longer needed, so as to provide a new blank for a new mold.

REFERENCES:
patent: 3422168 (1969-01-01), Bowser
patent: 3423488 (1969-01-01), Bowser
patent: 3683486 (1972-08-01), Rope et al.
patent: 3748202 (1973-07-01), Iisaka et al.
patent: 4001062 (1977-01-01), Iisaka et al.
The Condensed Chemical Dictionary, Tenth Edition, Revised by Gessner G. Hawley, New York, van Nostrand Reinhold, .COPYRGT.1981, pp. 199 and 1094.
Hackh's Chemical Dictionary, Fourth Edition, Completely Revised and Edited by Julius Grant, New York, McGraw-Hill, .COPYRGT.1972, p. 660.

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