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Which is fibre is made up of polyster polyurethansne copolymer? |
| Answer» POLYURETHANE fibers, sometimes CALLED Spandex or Elastane, are synthetic fibers in which the fiber FORMING substance is a polymer CONSISTING of at least 85 percent SEGMENTED polyurethane. The fiber is produced by reacting a polyester with a diisocyanate.hope it helps you...mark it as brainliest... | |