Polyester fibers having high strength and high modulus and proce

Details Polyester fibers having high strength and high modulus and proce Polyester fibers having high strength and high modulus and proce

1987-06-30

1989-07-25

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528289, 5283081, 5283082, 2641761, 2642107, 2642108, C08G 6302

Patent

active

048515086

ABSTRACT:
Polyester fibers having both a high strength and a high modulus prepared from ethylene terephthalate polyester, and having an intrinsic viscosity of not less than 1.0 and an initial tensile modulus is not less than 130 g/d, said intrinsic viscosity being determined in a mixed solvent of p-chlorophenol and tetrachloro ethane (3:1) at 30.degree. C. Processes for producing the fibers are also disclosed.

REFERENCES:
patent: 4414169 (1983-11-01), McClary
patent: 4433117 (1984-02-01), Takayanagi et al.

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