Method for producing acrylic fiber precursors

Details Method for producing acrylic fiber precursors Method for producing acrylic fiber precursors

1985-01-24

1987-09-22

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Filaments

264 296, 264 297, 264 83, 264182, 264206, 2642102, 2642103, 2642105, 2642107, 2642108, 26421115, 26421117, 264232, 264233, 2642356, 264346, 4234474, 4234476, 4234478, 4234477, D01F 922

Patent

active

046954155

ABSTRACT:
An acrylic fiber precursor for high performance carbon fibers free of defects which comprises an acrylonitrile polymer containing at least 90% by weight of acrylonitrile and has a surface roughness of 2.0 to 3.0 with dense inner structure. from a solution comprising 24 to 27.5% of the acrylonitrile polymer is dry-jet wet spun into a coagulation bath consisting essentially of dimethylformamide or dimethylacetamide and having a bath temperature of 5.degree. to 25.degree. C.Carbon fibers obtained by carbonizing these precursor acrylic fibers have no fusion bonding or agglutination of filaments and exhibit high performance.

REFERENCES:
patent: 3558761 (1971-01-01), Tobara et al.
patent: 3636187 (1972-01-01), Ohfuka et al.
patent: 3673035 (1972-06-01), Whitney
patent: 3814739 (1974-06-01), Takeda

Affiliated with

Also associated with

Rating

Method for producing acrylic fiber precursors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing acrylic fiber precursors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing acrylic fiber precursors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2057382