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1 results about "Vinyl halide" patented technology
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In organic chemistry, a vinyl halide is a compound with the formula CH₂=CHX (X = halide). The term vinyl is often used to describe any alkenyl group. For this reason, alkenyl halides with the formula RCH=CHX are sometimes called vinyl halides. From the perspective of applications, the dominant member of this class of compounds is vinyl chloride, which is produced on the scale of millions of tons per year as a precursor to polyvinyl chloride. Polyvinyl fluoride is another commercial product. Related compounds include vinylidene chloride and vinylidene fluoride.
Polyacrylonitrile-based fiber for artificial hair, method for manufacturing said fiber, and head decoration product containing said fiber
PCT designated stageWO2026110542A1WigsMonocomponent synthetic polymer artificial filamentPolymer scienceAcrylonitrile
The present invention relates to a polyacrylonitrile-based fiber for artificial hair, the polyacrylonitrile-based fiber containing an acrylonitrile copolymer, wherein the acrylonitrile copolymer contains a constituent unit derived from acrylonitrile and a constituent unit derived from a vinyl halide, the average circularity of a transverse cross section of the polyacrylonitrile-based fiber for artificial hair is 0.80 or greater, and the calculated average inclination angle RΔa of a line roughness curve element in a direction orthogonal to the length direction of the fiber is 13.0 to 30.0 degrees on the surface of the polyacrylonitrile-based fiber for artificial hair. As a result of this configuration, provided is a polyacrylonitrile-based fiber for artificial hair, said fiber having favorable curl setting properties when using hot water; a method for manufacturing said fiber; and a head decoration product containing said fiber.
Owner:KANEKA CORP