Polyvinyl alcohol fiber having excellent resistance to hot water

Details Polyvinyl alcohol fiber having excellent resistance to hot water Polyvinyl alcohol fiber having excellent resistance to hot water

1989-04-20

1992-07-28

Michl, Paul R.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

428364, 525 56, 525 62, 2642108, 264205, D01F 614, D01F 600, D01D 512, C08F 1606

Patent

active

051339161

ABSTRACT:
Provided are a polyvinyl alcohol fiber having a specific higher order structure, obtained by having the orientation and arrangement of molecular chains forming the fiber which comprises a crystalline region and an amorphous region lie in specific ranges to thereby making the fiber have a break-ing temperature in hot water of at least 125.degree. C., or further at least 130.degree. C. and be excellent in abrasion resistance, while maintaining the tenacity and the modulus of the fiber at high levels; and a process for producing the same.

REFERENCES:
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patent: 3850901 (1974-11-01), Tanaka et al.
patent: 3852402 (1974-12-01), Tanaka et al.
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patent: 4603083 (1984-12-01), Tanaka et al.
patent: 4612157 (1986-09-01), Genba et al.
patent: 4765937 (1988-08-01), Hyon et al.
patent: 4810450 (1989-03-01), Schellekens et al.
patent: 4812277 (1989-03-01), Mokveld et al.

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