B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/714
B29C 45/73 (2006.01) B29C 39/00 (2006.01) B29C 39/40 (2006.01) B29C 39/42 (2006.01) C08G 59/18 (2006.01) C08G 59/24 (2006.01) C08G 59/42 (2006.01) C08G 59/62 (2006.01)
Patent
CA 1213114
- 25 - A PROCESS FOR FABRICATING THERMOSET RESIN ARTICLES ABSTRACT OF THE DISCLOSURE Described herein is a process for producing a fabricated thermoset resin article which comprises the steps of: (a) providing in an accumulator zone, a liquid body of an epoxide containing organic material which is curable upon heating to a thermoset resin composition, the viscosity of said liquid body being maintained essentially constant in the accumulator zone by keeping its temperature below that at which curing of said materials is substantial, (b) providing a heated closed mold from which essentially all of the air has been removed from the cavity of said mold, (c) injecting at least a portion of said liquid body under pressure into the closed mold to fill the cavity in the mold, (d) initiating the curing of said materials by subjecting the materials to a temperature in the mold above the temperature of which the curing of said materials in initiated, (e) maintaining a pressure on the curing material, (f) injecting additioanl of said materials to the mold cavity during the curing of said materials and (g) opening said mold and removing the article thereform.
436368
Angell Richard G. Jr.
Hobbs Kenneth E.
Konrad John M.
Hopley William G.
Union Carbide Corporation
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