Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...
Patent
1977-10-03
1979-03-20
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heterocyclic reactant containing as ring atoms oxygen,...
528370, 528405, C08G 6362
Patent
active
041455258
ABSTRACT:
Polycarbonates, of the type formed by reacting an aliphatic or cycloaliphatic 1,2-monoepoxide with carbon dioxide and having substantially alternating units of epoxide and carbon dioxide, are improved in thermal stability by reacting the free hydroxyl groups thereon with a hydroxyl reactive phosphorus compound.
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Dixon Dale D.
Ford Michael E.
Mantell Gerald J.
Air Products and Chemicals Inc.
Anderson Harold D.
Brewer Russell L.
Moyerman Barry
Nielsen Earl A.
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