Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1986-04-28
1987-08-11
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
252182, 524712, 558 90, 558186, C08G 1814
Patent
active
046862412
ABSTRACT:
Included are the title phosphorate compounds, and a process to prepare them comprising contacting a carbylphosphorate acid halide with a carbyloxide. For example, (3-chloro-2,2-bis(bromomethyl)propyl)bis(ethyl)phosphorate can be prepared with 3,3-bis(bromomethyl)oxetane and bis(ethyl)chloridophosphorate. The compounds are useful flame retardants for polyurethanes, especially flexible foams because, for example, substantially non-scorching and non-odoriferous flame-retardant flexible foams can be readily prepared with the compounds. Also included is a method for inducing scorch in polyurethanes, which can be used to generally determine polyurethane formulations which are prone to not scorch in commercial production.
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Fielding Donna J.
Pawloski Chester E.
Wampfler David J.
The Dow Chemical Company
Welsh Maurice J.
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