Concentrating, E.g., Creaming, Etc. Patents (Class 528/937)
  • Patent number: 12018148
    Abstract: An ultralow-gloss polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) resin composition and a preparation method thereof are provided. The composition includes the following components: 40-80 parts by weight of bisphenol A polycarbonate, 19-40 parts by weight of acrylonitrile-butadiene-styrene graft copolymer, 1-20 parts by weight of ultralow-gloss toughening modifier, and 0.1-5 parts of processing aid. The ultralow-gloss toughening modifier includes the following components: post-treated polymeric microspheres, a low-temperature toughening agent, a coupling agent, and aid. The preparation method of the composition includes: fully mixing all components in a high-speed mixer to obtain a mixture; feeding the mixture into a main feed port from a twin-screw extruder, melting, extruding, cooling, drying, and pelletizing.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 25, 2024
    Assignee: SHANGHAI KUMHOSUNNY PLASTICS CO., LTD.
    Inventors: Huilin Qin, Qiang Li, Minqi Xin
  • Patent number: 8815965
    Abstract: Processes for recovering natural rubber from an aqueous natural rubber latex that contains extractables and one or more additives and that is essentially free of lignocellulosic plant material are described. Natural rubber in the latex is separated from the water. Preferably, the amount of non-rubber extractables in the natural rubber is reduced by one or more extraction steps yielding a dried natural rubber.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 26, 2014
    Assignee: Bridgestone Corporation
    Inventors: William M Cole, Georg G. A. Bohm, Walter Tomaszewski, Yingyi Huang
  • Patent number: 7923039
    Abstract: Disclosed is a method and apparatus for the extraction of high molecular weight biopolymers from plants. Specifically, invention described herein relates to the commercial processing of plant material, including that from desert plants native to the southwestern United States and Mexico, such as the guayule plant (Parthenium argentatum), for the extraction of biopolymers, including natural rubbers. More specifically, the invention relates to laboratory to commercial scale extraction of high molecular weight biopolymers from plant materials including the chemical and mechanical processing of the plants and purification of the extracted biopolymer.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: April 12, 2011
    Assignee: Yulex Corporation
    Inventors: Katrina Cornish, Raymond G. McCoy, III, Jeffrey A. Martin, Jali Williams, Anthony Nocera, Jr.