On August 14, 2012, Jung, Hyeon Gi; Hong, Ji Hye; Kang, Yeon Su published a patent.Application of 110729-26-5 The title of the patent was Spandex fiber with improved chlorine and discoloration resistance. And the patent contained the following:
Title fiber comprises a polyurethane, a sym. dihindered hydroxyphenyl-based compound 0.1-5, a monohindered hydroxyphenyl-based compound 0.1-5, an inorganic chlorine-resistant agent 0.1-10, and a phosphorus-based antioxidant 0.1-3%. Thus, 518 g MDI and 2328 g polytetramethylene glycol were polymerized at 90° for 95 min followed by chain-extending with 43 g ethylenediamine to give a polyurethane, hydrotalcite 4, tetrakis[methylene-2-(3,5-ditert-butyl-4-hydroxyphenyl)propionate]methane 1.5, 4,4′-butylidene bis(6-tert-butyl-3-methylphenol) 1.5, tetrakis(2,4-di-tert-butylphenyl)-4,4′-biphenyldiphosphonite 0.5% thereon, the resulting spinning dope solution was spun and post-processed to give a spandex fiber, showing good discoloration and chlorine resistance. The experimental process involved the reaction of Octadecyl 3-(3-(tert-butyl)-4-hydroxyphenyl)propanoate(cas: 110729-26-5).Application of 110729-26-5
The Article related to spandex fiber chlorine discoloration resistance, polyurethane hindered hydroxyphenyl compound antioxidant inorganic chlorine resistant agent, mdi polytetramethylene glycol ethylenediamine block copolymer fiber preparation and other aspects.Application of 110729-26-5
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