Heat-adhesive composite fibers and method for making the same

Details Heat-adhesive composite fibers and method for making the same Heat-adhesive composite fibers and method for making the same

1987-09-10

1989-06-20

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428370, 428371, 428374, 428397, 428399, D02G 300

Patent

active

048408468

ABSTRACT:
A heat-adhesive composite fiber consisting of core portion and sheath portion, the core portion being of the side-by-side type composite structure comprising two core components of different polypropylene base polymers at a composite ratio of 1:2 to 2:1, one of the core components having a Q value, expressed in terms of the weight-average molecular weight/the number-average molecular weight, equal to or higher than 6 and the other having a Q value equal to or lower than 5, and the sheath portion meeting at least the requirements that it should comprise a sheath component of a polyethylene base polymer having a melting point lower by at least 20.degree. C. than the lower one of the melting points of the two core components, and it should cover the core portion in a proportion of 25 to 55% by weight based on the total weight of it and the core portion.

REFERENCES:
patent: 3509013 (1970-04-01), Oppenlander
patent: 3760052 (1973-09-01), Fukuma et al.
patent: 3900678 (1975-08-01), Aishima et al.
patent: 4189338 (1980-02-01), Ejima et al.
patent: 4323626 (1982-04-01), Kunimune et al.
patent: 4469540 (1984-09-01), Furakawa et al.

Affiliated with

Also associated with

Rating

Heat-adhesive composite fibers and method for making the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat-adhesive composite fibers and method for making the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat-adhesive composite fibers and method for making the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-524760