Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1985-07-15
1987-03-03
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524606, 524607, 525432, 528208, 528228, 528229, 528335, 528336, 528341, 528342, 528344, 528351, 528352, 528353, C08G 8300
Patent
active
046476164
ABSTRACT:
Thermosettable prepolymers are prepared by reacting (A) a heterocyclic material containing one or more rings and one nitrogen atom or a mixture of such materials wherein at least one of such materials contains at least two reactive substituent groups having at least one reactive hydrogen atom attached to a carbon atom which is attached to the ring such as 2,4,6-trimethyl pyridine; with (B) a cycloaliphatic or aromatic carboxylic acid mono- or dianhydride such as phthalic anhydride. These prepolymers or resins, can be homopolymerized without coreactants or copolymerized with N,N'-bis-imide such as 1,1'-(methylenedi-4,1-phenylene)bismaleimide, to produce products, mat castings or composites having good mechanical and thermal properties.
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Earls Jimmy D.
LaTulip Randy J.
Swearingen Loren L.
Anderson Harold D.
Carter James G.
The Dow Chemical Company
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