Process for producing foam cushions

Details Process for producing foam cushions Process for producing foam cushions

1989-04-17

1990-05-22

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 451, 264 467, B29C 6722

Patent

active

049275755

ABSTRACT:
A process for producing foam cushions having sections of different hardnesses using foam molding. The process broadly includes introducing a first reaction mixture into a mold, introducing a second reaction mixture into a mold, said second mixture already being in a creamed state, 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 introduced at a time when itis sufficiently creamed up so that it cannot flow through the holes in the web.

REFERENCES:
patent: 3516901 (1970-06-01), Fultz et a.
patent: 3786122 (1974-01-01), Berg
patent: 4190697 (1980-02-01), Ahrens
patent: 4379856 (1983-04-01), Samaritter et al.
patent: 4714574 (1987-12-01), Tenhagen

Affiliated with

Also associated with

Rating

Process for producing foam cushions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing foam cushions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing foam cushions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2133147