Copolyesteramide and production of the same

Details Copolyesteramide and production of the same Copolyesteramide and production of the same

1983-03-08

1984-02-21

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525444, 528289, C08F28304, C08G 6948, C08G 7316

Patent

active

044331177

ABSTRACT:
A copolymer having high strength and high elastic modulus is produced by copolymerizing (a) a polyamide oligomer prepared from a piperazine compound and an aromatic dicarboxylic acid and (b) a polyalkylene terephthalate monomer or a prepolymer thereof. The copolymer is useful as a rubber reinforcing fiber, a magnetic tape base film, and a coating material.

REFERENCES:
patent: 3839245 (1974-10-01), Schlossman et al.
patent: 3849514 (1974-11-01), Gray et al.
patent: 4115475 (1978-09-01), Foy et al.

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