Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1972-06-05
1976-05-04
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264 467, 264 54, 264271, 264328, 264DIG83, 425 4R, 428260, 428315, 428320, 428425, B29D 2700, B29F 110
Patent
active
039549267
ABSTRACT:
Synthetic-resin bodies, preferably composed of hardenable synthetic resins and especially thermosetting resins are formed by introducing a foamable resin into a mold cavity, setting the foamable resin upon permitting the same to expand to fill the mold cavity, and thereafter introducing into the mold cavity, without changing the volume thereof, at least one additional synthetic resin while the foamed body is plastically deformable but possesses sufficient rupture strength to prevent penetration. The resulting body thus has a surface layer of the second material which displaces the foamed first material.
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mobay Chemical Co. Bulletin. "The Rolling Showcase for Engineering Plastics." Pittsburgh, Pa., 1968, pp. 1-8.
Harreis Jobst
Pahl Fritz Wilhelm
Anderson Philip
Dubno Herbert
Ross Karl F.
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