Process for producing foam cushions

Details Process for producing foam cushions Process for producing foam cushions

B - Operations, Transporting

29

C

18/641

B29C 44/04 (2006.01) B29C 33/12 (2006.01)

Patent

CA 1320617

Mo-3162 LeA 26,008 PROCESS FOR PRODUCING FOAM CUSHIONS ABSTRACT OF THE DISCLOSURE The present invention is directed to a process for producing foam cushions having sections of different hardnesses using foam molding. The process broadly comprises introducing a first reaction mixture into a mold, introducing a second reaction mixture into a mold, said second mixture already being in a creamed states allowing the reaction mixtures to foam, and removing the resultant product from the mold. Prior to the introduction of the first mixture, a web with holes in it is clamped over a deepened section of the mold cavity. The first reaction mixture is then fed onto the web, with the first mixture being in a sufficiently liquid state so as to allow it to flow through the holes and into the space below the web. The second reaction mixture is then fed into the space remaining above and to the sides of the web. The second mixture is intro- duced at a time when it is sufficiently creamed up so that it cannot flow through the holes in the web. Mo-3152 Le A 26 008-US/CA

596153

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