Mold structure and method of molding for mechanically...

Details Mold structure and method of molding for mechanically... Mold structure and method of molding for mechanically...

B - Operations, Transporting

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C

18/660

B29C 44/38 (2006.01) B29C 31/04 (2006.01)

Patent

CA 1174412

-19- IMPROVED MOLD STRUCTURE AND METHOD OF MOLDING FOR MECHANICALLY FROTHED URETHANE FOAM Abstract of the Disclosure Improved mold structure and method of molding for mechanically frothed urethane foams is presented. The mold is filled from the bottom via an annular runner which communicates with the mold cavity. The connection between the annular runner and the mold cavity is restricted to create a back pressure in the circumferential runner.

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