High-strength creep-resistant polyester industrial yarn and preparation method thereof

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United States of America

PATENT NO 12152319
APP PUB NO 20230392300A1
SERIAL NO

18269967

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Abstract

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A high-strength creep-resistant polyester industrial yarn and preparation method thereof are provided. The high-strength creep-resistant polyester industrial yarn is prepared by spinning, winding and coordination treatment of a modified polyester after solid-state polycondensation to increase viscosity. The condition of coordination treatment is 60-72 hours at 80-100° C. The coordination agent is AgNO3, FeCl2, CuCl2, or NiCl2. The polyester segments of the prepared high-strength creep-resistant polyester industrial yarn includes a terephthalic acid segment, an ethylene glycol segment and a 2-(4-pyridine) terephthalic acid segment, and 2-(4-pyridine) terephthalic acid segments of different polyester segments are coordinated by metal ions (Ag+, Fe2+, Cu2+ or Ni2). The molar ratio of the terephthalic acid segment to the 2-(4-pyridine) terephthalic acid segment is 1:(0.03-0.05). The N atom on the pyridine of the 2-(4-pyridine) terephthalic acid segment is involved in coordination. Metal ions are coordinated with 2-(4-pyridine) terephthalic acid to greatly reduce the creep degree of the polyester fiber.

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Patent Owner(s)

Patent OwnerAddress
JIANGSU HENGLI CHEMICAL FIBRE CO LTDNO 1 HENGLI ROAD NANMA INDUSTRIAL ZONE SHENGZE TOWN WUJIANG DISTRICT SUZHOU CITY JIANGSU PROVINCE SUZHOU CITY JIANGSU PROVINCE 215226

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tang, Fangming Suzhou, CN 18 7
Wang, Lili Suzhou, CN 226 1989
Wang, Shanshui Suzhou, CN 16 1
Wei, Cunhong Suzhou, CN 3 0
Zhang, Ye Suzhou, CN 142 1763
Zhang, Yumei Suzhou, CN 13 44
Zhao, Yanli Suzhou, CN 44 157

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