Method for recycling a cured phenolic resin into a molded articl

Details Method for recycling a cured phenolic resin into a molded articl Method for recycling a cured phenolic resin into a molded articl

1999-03-05

2000-01-11

Niland, Patrick D.

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

Synthetic resins

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

249111, 252 62, 264 291, 264 293, 264 296, 264101, 264911, 523129, C08J 1104, C08K 1100, C08L 6104, E04B 174, C01B 3100

Patent

active

060136847

ABSTRACT:
There is disclosed a method for recycling a cured phenolic resin by (a) heating a cured phenolic resin to form a thermal decomposition product having a residue, (b) separating said residue from said thermal decomposition product, (c) pulverizing said separated residue to obtain a carbide powder and molding said carbide powder alone or in combination with a binder into a molded article, and/or (d) gelling and drying said separated thermal decomposition product thereby molding it into a molded article. By the method, the present invention realizes efficient recycling of a cured phenolic resin which can become a massive waste into a useful material.

REFERENCES:
patent: 4321154 (1982-03-01), Ledru
patent: 5877100 (1999-03-01), Smith et al.

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