Filaments and fibers of acryling polymers which contain carboxyl

Details Filaments and fibers of acryling polymers which contain carboxyl Filaments and fibers of acryling polymers which contain carboxyl

1991-01-28

1992-04-28

Cannon, James C.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526930, C08F 2044, C08F12044

Patent

active

051090929

ABSTRACT:
The invention relates to filaments and fibers of acrylonitrile polymers, which contain 10 to 30% by weight of carboxyl groups, their use and processes for their production. The filaments and fibers exhibit, in the dry state, tensile strengths of more than 10 cN/tex and knot strengths of more than 6 cN/tex and can be processed on customary machinery and are suitable for the production of shaped structures of high water retention. The polymeric raw materials required for the spinning are produced by hydrolysis of acrylonitrile polymers using aqueous dilute acids in a heterogeneous phase system.

REFERENCES:
patent: 4997610 (1991-03-01), Huber et al.

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