Method for making polybenzobisoxazole containing fiber

Details Method for making polybenzobisoxazole containing fiber Method for making polybenzobisoxazole containing fiber

2005-07-13

2008-12-16

Truong, Duc (Department: 1796)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C528S487000, C528S335000, C528S341000, C528S422000, C528S503000, C528S272000

Reexamination Certificate

active

07465782

ABSTRACT:
A method of making polybenzobisoxazole containing fiber by use of a non-polybenzobisoxazole polymer, hydroxylating the polymer, forming the polymer into a fiber and heating the fiber wherein ring closure occurs in the hydroxylated polymer.

REFERENCES:
patent: 3767756 (1973-10-01), Blades
patent: 3819587 (1974-06-01), Kwoleck
patent: 3869429 (1975-03-01), Blades
patent: 3869430 (1975-03-01), Blades
patent: 4423202 (1983-12-01), Choe
patent: 5151490 (1992-09-01), Harris et al.
patent: 6153350 (2000-11-01), Sezi et al.
T. I. Bair et al., “Poly(1,4-phenyleneterephthalamides) Polymerization and Novel Liquid-Crystalline Solutions”, Macromolecules, vol. 10, No. 6, Dec. 1977, pp. 1396-1400.

Affiliated with

Also associated with

Rating

Method for making polybenzobisoxazole containing fiber 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 making polybenzobisoxazole containing fiber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making polybenzobisoxazole containing fiber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4044404