Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1988-09-16
1989-12-19
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521159, 521172, 521174, 521177, 528 59, 528 60, 528 66, 528 76, 528 79, 528 81, 528 83, 528 84, 528 85, C08G 1830
Patent
active
048883654
ABSTRACT:
Polyurethane/polyisocyanurate rigid foams having low thermal conductivity are prepared from isocyanate-terminated quasi-prepolymers prepared from polyester polyols derived from phthalic anhydride or from the transesterification of polyethylene terephthalate scrap.
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Naravan Thirumurti
Riley Robert E.
Acquah Samuel A.
BASF Corporation
Brooks Cary W.
Kight John
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