Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1995-03-01
1995-11-21
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 99, C08G 1800, C08G 1810
Patent
active
054687837
ABSTRACT:
Polyaromatic polyisocyanates are modified by reaction with 0.1 to 10 weight %, preferably 2 to 7 weight % (based on polyisocyanate) of a polyether alcohol of molecular weight 206 to 948, obtainable by the reaction of alkylene oxides with C.sub.6 -C.sub.30, preferably C.sub.8 -C.sub.20, hydrocarbons containing 1 to 3 active H atoms, and are used for the production of rigid polyurethane foamed materials.
REFERENCES:
patent: 4304708 (1981-12-01), Marx et al.
patent: 5028636 (1991-07-01), Gebauer et al.
patent: 5314588 (1994-05-01), Zarnack et al.
Gebauer Herbert
Gupta Pramod
Konig Christian
Bayer Aktiengesellschaft
Brown N. Denise
Gil Joseph C.
Johnson R. F.
Seidleck James J.
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