Method of recycling a discarded polyurethane foam article

Details Method of recycling a discarded polyurethane foam article Method of recycling a discarded polyurethane foam article

1995-04-21

1995-12-26

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Process of treating scrap or waste product containing solid...

428262, 4284231, 4289033, 428904, 525424, 525440, 521102, C08J 1104

Patent

active

054788650

ABSTRACT:
A method of recycling discarded PU foam articles comprises a first step of grinding the discarded PU foam articles into fine particles, which are then mixed with a predetermined amount of a powdered plastic to form a mixture. The mixture is heated to become a molten mixture, which is cooled to take form. The molten mixture may be adhered to the surface of a cloth or leather material when the cooling and the forming processes of the molten mixture are under way. The final product can be burned at a high temperature to produce a high-carbon residue, which is added to the mixture to make a product having a deodorant and an antistatic effects.

REFERENCES:
patent: 4439546 (1984-03-01), Brennan
patent: 4451583 (1984-05-01), Chesler
patent: 5185380 (1993-02-01), Diesill et al.
patent: 5288760 (1984-02-01), Morgan

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