Polyols from scrap polyethylene terephthalate and dimethyl terep

Details Polyols from scrap polyethylene terephthalate and dimethyl terep Polyols from scrap polyethylene terephthalate and dimethyl terep

1986-06-18

1988-01-19

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

521131, 521159, 521172, 521173, 560 89, 560 92, 252182, C07C 6982, C07C 6703

Patent

active

047205717

ABSTRACT:
Disclosed is a mixture of terephthalic acid ester polyols for use in the preparation of rigid polyurethane and polyisocyanurate foams. The polyols are prepared by reacting scrap polyethylene terephthalate, dimethyl terephthalate process residue and an excess of a mixture of glycols.

REFERENCES:
patent: 3647759 (1972-03-01), Walker
patent: 4048104 (1977-09-01), Svoboda et al.
patent: 4223068 (1980-09-01), Carlstrom et al.
patent: 4346229 (1982-08-01), Derr et al.
patent: 4411949 (1983-10-01), Snider et al.
patent: 4439550 (1984-03-01), Brennan
patent: 4439551 (1984-03-01), Yeakey et al.
patent: 4444918 (1984-04-01), Brennan
patent: 4444920 (1984-04-01), Brennan
patent: 4469824 (1984-09-01), Grigsby, Jr. et al.
patent: 4506090 (1985-03-01), Brennan et al.

Affiliated with

Also associated with

Rating

Polyols from scrap polyethylene terephthalate and dimethyl terep does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyols from scrap polyethylene terephthalate and dimethyl terep, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyols from scrap polyethylene terephthalate and dimethyl terep will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-372260