D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
D01F 6/62 (2006.01) C08G 63/199 (2006.01) C08G 63/60 (2006.01) D01D 5/08 (2006.01)
Patent
CA 2137020
Poly(1,4-cyclohexanedimethylene terephthalate) multifilament yarns for technical applications and production thereof Described is a high hydrolysis and aminolysis resistance multifilament yarn composed of a polymer based on poly(1,4-cyclohexanedimethylene terephthalate), wherein at least 85 mol % of the diol-derived groups of the polyester are 1,4-cyclohexanedimethylene groups, characterized by a tenacity of above 40 cN/tex, a dry heat shrinkage S200 of below 10 % and a post hydrolysis or aminolysis treatment strength of at least 85 % of the original strength. There is also described a process for producing this multifilament yarn by maintaining the temperature of the melt at from 295 to 305 °C, taking off the filaments at a spinning take-off speed of below 1500 m/min, drawing the spun filaments continuously or batchwise in at least two stages using a defined draw ratio and defined temperatures in every stage, and subjecting the drawn filaments to a setting and relaxing treatment at temperatures above 230 °C.
Bennett Jones Llp
Hoechst Aktiengesellschaft
Invista Technologies S.a R.l.
LandOfFree
Poly (1,4-cyclohexanedimethylene terephthalate)... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Poly (1,4-cyclohexanedimethylene terephthalate)..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Poly (1,4-cyclohexanedimethylene terephthalate)... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1644858