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
1990-08-13
1993-08-31
Nozick, Bernard
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
264252, 164 15, B29C 3340
Patent
active
052406687
ABSTRACT:
A method for forming a mold for encapsulating glass sheets with a gasket which includes the steps of positioning a rigid member 18 having a finishing surface 19 and a seal 30 adjacent a model 2, forming a first mold section 10 about the rigid member 18, the seal 30, and the model 2 and adjacent the first side of the model 2, forming a second mold section 12 adjacent a second side of the model 2, and then separating the first mold section 10 and the second mold section 12 and removing the model 2. In one embodiment of the invention, the rigid member 18 is prepared by forming an initial member 24 corresponding at least in part to the shape of the model 2, using the initial member 24 to prepare a cast, casting the rigid member 18 in the cast, and then preparing a finishing surface 19 of the rigid member 18.
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Bayer Polyurethanes, Bayer Chemical Co. (circa 1979), pp. 130-139.
Nozick Bernard
Vidrio Plano de Mexico, S.A.
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