Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1984-10-09
1985-09-10
Cockeram, Herbert S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
264 53, 264 54, 2643286, 264DIG83, 521164, 521173, C08G 1814, C08G 1842, B28B 124
Patent
active
045407681
ABSTRACT:
Reaction injection molded elastomers made from polymer polyols derived by reacting a liquid terephthalic polyester polyol with an organic polyisocyanate in the presence of a polyether polyol solvent are described. The liquid terephthalic polyester polyol may be made by reacting residue or scrap polyethylene terephthalate (PET) with an oxyalkylene glycol. The oxyalkylene glycol is preferably either diethylene glycol alone or a mixture of diethylene glycol and at least one other oxyalkylene glycol. The liquid terephthalic polyester polyol is preferably distilled to remove ethylene glycol. RIM elastomers made from these polymer polyols have improved hot tear (green strength) and final tear properties than prior art elastomers.
REFERENCES:
patent: 4048105 (1977-09-01), Salisbury
patent: 4100354 (1978-07-01), Owen
patent: 4296212 (1981-10-01), Ewen et al.
patent: 4346229 (1982-08-01), Derr et al.
patent: 4394286 (1983-07-01), Millick
patent: 4442237 (1984-04-01), Zimmerman et al.
patent: 4469823 (1984-09-01), Yeakey et al.
patent: 4469824 (1984-09-01), Grigsby et al.
Cuscurida Michael
Dominguez Richard J. G.
Speranza George P.
Cockeram Herbert S.
Morgan Richard A.
Park Jack H.
Priem Kenneth R.
Texaco Inc.
LandOfFree
Rim elastomers made from terephthalate polyester polyol derived does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rim elastomers made from terephthalate polyester polyol derived , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rim elastomers made from terephthalate polyester polyol derived will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1429481