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US 4,233,434 AGranted
Polyamide from aromatic phosphorus containing diamine
OwnerMenahem A. Kraus, Moshe A. Frommer +2inventors
InventorsMenahem A. Kraus, Moshe A. Frommer, Mara Nemas, Rodika Gutman
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Abstract
The present invention relates to novel aromatic and araliphatic polymers and copolymers based on phosphoric acid and thiophosphoric acid amides, esters and thioesters, to monomers for the production of these and to various products prepared from such polymers and copolymers, such as films, membranes, fibers and shaped objects.
Claims19
A polymer consisting essentially of the following repeating unit:
- ##STR22## wherein X designates --NHAr, N(R)Ar, --NRR', NHR, --OR, --OAr, or SR,
- Y designates --O--, --NH--, --S--, or --N(CH.sub.3)--,
- Z designates .dbd.O or .dbd.S,
- Q, Q' and Q" designate p-C.sub.6 H.sub.4, m-C.sub.6 H.sub.4, R"C.sub.6 H.sub.3, ##STR23## which Q, Q', and Q" may be identical or different,
- Ar designates --C.sub.6 H.sub.5, or RC.sub.6 H.sub.4,
- R designates --CH.sub.3, C.sub.2 H.sub.5, or --n--C.sub.3 H.sub.7,
- R' designates --CH.sub.3, C.sub.2 H.sub.5, or --C.sub.3 H.sub.7, and
- R" designates --CH.sub.3, --C.sub.2 H.sub.5, n--C.sub.3 H.sub.7, --OCH.sub.3, --OH, --COOH or --COOR, wherein R is as defined above,
- x is an integer of from 1 to 5,
- y is zero or an integer of 1 to 5, and
- n is an integer of from 50 to 200;
- wherein the repeating portions within the right-hand parentheses of said repeating unit when y is greater than 1 are alike or different.
9 more elements
Dependencies are inferred from the claim text.