Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1974-10-02
1976-07-13
Lee, Lester L.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
428458, 428474, 428475, C09D 370
Patent
active
039695662
ABSTRACT:
Novel polymers formed from the reaction of tricarboxylic anhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or hydrazide are disclosed.
REFERENCES:
patent: 3360502 (1967-12-01), Loncrini
Chem. Abstracts, Korshak et al., Preparation of Polymers from Pyromellitic Dianhydride and Hydrazne, 68816w, vol. 70, 1969.
Schimmel Karl F.
Wismer Marco
Curley John E.
DeMajistre Robert
Lee Lester L.
PPG Industries Inc.
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