Low pilling polyester fibers and process for their manufacture

Details Low pilling polyester fibers and process for their manufacture Low pilling polyester fibers and process for their manufacture

1977-01-21

1978-08-01

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260862, 260878R, 260885, C08G 6322

Patent

active

041042611

ABSTRACT:
An improvement in the process of melt spinning ethylene terephthalate polyester to produce textile fibers with decreased pilling in the threads, fibers or fabrics made therefrom. The ethylene terephthalate is melt polymerized in the presence of a condensation catalyst to a final temperature of about 250.degree.-300.degree. C and a final pressure of less than 10 mm mercury to form an anhydrous melt. A vinyl copolymer having more than two carboxyl and/or hydroxyl groups is added to the melt polymerization at a concentration of about 0.005 to 2.0 percent referred to the dicarboxylic acid component. Melt spinning of the modified polyester is then carried out. The vinyl copolymer has the following general formula- ##STR1## where N IS AN INTEGER FROM 10 TO 10,000;

REFERENCES:
patent: 3290411 (1966-12-01), Tsuji et al.
patent: 3591659 (1971-07-01), Brinkmann et al.

Affiliated with

Also associated with

Rating

Low pilling polyester fibers and process for their manufacture does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low pilling polyester fibers and process for their manufacture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low pilling polyester fibers and process for their manufacture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1978895