Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From aldehyde or derivative thereof as reactant
Patent
1989-05-12
1991-04-02
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From aldehyde or derivative thereof as reactant
528241, 528245, 528247, 528250, C08G 400
Patent
active
050047981
ABSTRACT:
Cationic copolymerization of trioxane and trimethylolpropane (TMP) formal or its ester derivatives yields acetal copolymers having pendant functional groups. The TMP formal or ester derivatives of TMP formal may therefore include functional groups selected from hydroxyl or ester moieties which are protected and thus survive the copolymerization with trioxane. These groups may then be present as functional reactive sites for the subsequent synthesis of block copolymers and/or to chemically bind modifiers to the acetal copolymer backbone, for example.
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patent: 4876368 (1989-10-01), Broussard
CA 69:107263q, "Poly(Oxymethylene)".
CA 69:67927a, "Formaldehyde Glyoxal Bis(Trimethylolpropane Acetal) Polymers".
CA 101:193339c, "Polyoxymethylene Molding Compositions".
Auerbach Andrew B.
Broussard Jerry A.
Paul James L.
Yang Nan L.
Zhang Chong L.
Acquah C. A.
Hoechst Celanese Corporation
Kight III John
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