Continuous carrierless dyeable polyesters

Details Continuous carrierless dyeable polyesters Continuous carrierless dyeable polyesters

1977-05-12

1979-09-11

Lieberman, Allan

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

Synthetic resins

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

8DIG4, 264 78, 264176R, 264176F, C08L 6702, D01F 684, D01F 688, D01F 692

Patent

active

041675410

ABSTRACT:
A continuous, carrierless dyeable polyester fiber and the process for its preparation is set forth. The fiber is produced from a polymer obtained by producing a melt blend system comprising a homogenous blend of (a) not less than 78 percent by weight of poly(ethylene terephthalate) copolymerized with major amounts of a dicarboxylic acid other than terephthalic acid and (b) minor amounts, that is to say, quantities less than that of said dicarboxylic acid, of a homopolymer selected from the group consisting of poly(trimethylene terephthalate), poly(tetramethylene terephthalate), poly(pentamethylene terephthalate), poly(hexamethylene terephthalate), poly(heptamethylene terephthalate), poly(octamethylene terephthalate), poly(nonamethylene terephthalate) and poly(decamethylene terephthalate).

REFERENCES:
patent: 3117107 (1964-01-01), Stimpson et al.
patent: 3607804 (1971-09-01), Nishimura
patent: 3652714 (1972-03-01), Berger
patent: 3948831 (1976-04-01), Cohn
patent: 3988387 (1976-10-01), Chimura et al.

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