High tenacity, high modulus polyamide yarn and process for...

Details High tenacity, high modulus polyamide yarn and process for... High tenacity, high modulus polyamide yarn and process for...

D - Textiles, Paper

02

J

18/634

D02J 1/22 (2006.01) D01F 6/60 (2006.01)

Patent

CA 2028063

TITLE High Tenacity, High Modulus Polyamide Yarn and Process for Making Same ABSTRACT OF THE DISCLOSURE A yarn comprised of a polyamide which is at least about 85% poly(hexamethylene adipamide) or poly(.epsilon.-caproamide) is disclosed which has a relative viscosity of greater than about 50, a tenacity of greater than about 11.0 g/d, a dry heat shrinkage at 160°C of not more than about 6.5 percent, a boil-off shrinkage of less than about 7%, a modulus of greater than about 35 g/d, a birefringence of greater than about 0.060, a differential birefringence D: .DELTA..90-.00, of greater than 0, and a sonic modulus of greater than about 90 g/d. The process for making the yarn includes drawing of a feed yarn while heating to at least about 185°C in at least a final draw stage to a draw tension of at least 3.8 g/d, subsequently decreasing the tension while heating to at least about 185°C to produce a length decrease of between about 2 and about 13.5, and cooling and packaging the yarn. Doc. M.2 RD-4636

Affiliated with

Also associated with

Rating

High tenacity, high modulus polyamide yarn and process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High tenacity, high modulus polyamide yarn and process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High tenacity, high modulus polyamide yarn and process for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1362432