Use of polyethylene terephthalate liquid waste streams containin

Details Use of polyethylene terephthalate liquid waste streams containin Use of polyethylene terephthalate liquid waste streams containin

1982-11-22

1984-04-24

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 48, 521173, C08G 1814

Patent

active

044449194

ABSTRACT:
A method for using polyethylene terephthalate liquid waste streams which contain mono- and polyethylene glycols as polyol extenders in the manufacture of rigid foam is described. Extenders such as this cut down on the polyol expense in rigid foams with no decrease in quality. They are useful in rigid polyurethane and rigid polyisocyanurate foam production.

REFERENCES:
patent: 4100354 (1978-07-01), Owen

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