Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1986-11-05
1988-08-09
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
5DIG2, 249129, 249130, 264 453, 264 464, 264 54, 264254, 264255, 26433119, 425817R, 4283099, 4283166, B29C 6722, B29C 3918, B29C 3920
Patent
active
047626542
ABSTRACT:
A method for making a foamed article having a laminated structure comprises providing a mold having a cavity therein and a rib vertically mounted from a bottom of the cavity and having a predetermined height to establish at least two blocks on the bottom, and pouring a foamable liquid compositions into the respective blocks in amounts which permit one of the foamable liquid composition to cover the other foamable liquid composition upon foaming whereby the resulting foam has a laminated structure whose boundary between the foamed layers made of the respective foamable liquid compositions is smooth and agreeable to the touch.
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Fuchigami Nobuhisa
Fukuda Hiroya
Yoshida Takeo
Anderson Philip
Bridgestone Corporation
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