Patents Assigned to CHANGZHOU BAMSTONE COMPOSITES CO., LTD.
  • Publication number: 20210221968
    Abstract: A thermoplastic polymer-based composite material and a preparation method thereof are provided. The thermoplastic polymer-based composite material is obtained by impregnating a reinforcing material with a mixture or oligomer of an epoxy resin, a bismaleimide resin, and a bifunctional amine (calculated based on active hydrogen), and then performing an in-situ polymerization. The thermoplastic polymer-based composite material has excellent impregnation effect, excellent secondary processing performance, relatively high heat resistance, excellent flame retardancy, and mechanical properties, and excellent comprehensive performance.
    Type: Application
    Filed: November 16, 2018
    Publication date: July 22, 2021
    Applicants: Changzhou Bamstone Composites Co., Ltd., Wuhan University of Technology
    Inventors: Jun WANG, Junjie ZOU, Xiaoli YANG, Wei LIU
  • Publication number: 20210221970
    Abstract: A thermoplastic polymer-based composite material and a preparation method thereof are provided. The thermoplastic polymer-based composite material is obtained by impregnating a reinforcing material with a mixture or an oligomer of an epoxy resin, a bisphenol A/F, and a catalyst and then performing an in-situ polymerization. The thermoplastic polymer-based composite material is less expensive to produce, has an optimal impregnation effect, excellent secondary processing performance, high heat resistance, desirable mechanical properties and excellent overall performance.
    Type: Application
    Filed: November 16, 2018
    Publication date: July 22, 2021
    Applicants: Changzhou Bamstone Composites Co., Ltd., Wuhan University of Technology
    Inventors: Jun WANG, Junjie ZOU, Xiaoli YANG, Wei LIU
  • Publication number: 20200208003
    Abstract: The present invention provides an air exhaust or air-and-smoke exhaust pipe for a clean room and a manufacturing method thereof. The air exhaust or air-and-smoke exhaust pipe is a pipe that satisfies FM4922, FM4910, or another equivalent standard and that is used for exhausting nonflammable chemical gas and corrosive vapor or nonflammable chemical gas, corrosive vapor and smoke in fire. The manufacturing method for the air exhaust or air-and-smoke exhaust pipe is: coating an inner part of a pre-manufactured metal pipe with a liquid coating that can be initially dried at normal temperature or low temperature to obtain an inner coating pipe; and baking the inner coating pipe at a temperature not exceeding 250° C. after the coating is initially dried, thus the coating is completely dried to obtain a finished product.
    Type: Application
    Filed: September 30, 2017
    Publication date: July 2, 2020
    Applicant: Changzhou Bamstone Composites Co., Ltd.
    Inventors: Wei LIU, CHANG-TZU YU, Jiuxiao SUN
  • Patent number: 9963530
    Abstract: A curable thermosetting resin composition, including a multicomponent copolymer and an epoxy resin. The multicomponent copolymer is a ternary or quaternary copolymer having structural units selected from the group consisting of unit (I), unit (II), unit (III) and (IV). The structural unit (I) is the structural unit (II) is the structural unit (III) is and the structural unit (IV) is where m, n, r and s are natural numbers denoting the molar fraction of corresponding building blocks in the copolymers respectively, R is selected from the group consisting of hydrogen, aromatic group and aliphatic group, and AR is an aromatic group; and the epoxy resin is one or more selected from a group consisting of aromatic epoxy compound, alicyclic epoxy compound and aliphatic epoxy compound.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: May 8, 2018
    Assignee: CHANGZHOU BAMSTONE COMPOSITES CO., LTD.
    Inventors: Wei Liu, Ruimin Xiao, Lu Wang
  • Publication number: 20180051112
    Abstract: The present invention relates to a curable thermosetting resin composition including a multicomponent copolymer of monomers represented by general formulas (I), (II), (III) and (IV), an epoxy resin, a curing agent, etc. In the present invention, the phosphorus element is creatively introduced into a ternary or quaternary copolymer that is capable of undergoing a cross-linking reaction with an epoxy resin, and the ternary or quaternary copolymer is mixed with the epoxy resin and the like to form a composition meeting all the requirements that the cured product has a high glass transition temperature, a low dielectric constant and dielectric loss factor, and a certain flame resistance. The multicomponent copolymer is prepared through two methods, in which one method includes direct copolymerization of corresponding monomers and the other method includes initial copolymerization with a hydroxyl-containing monomer and the following esterification with phosphoric acid.
    Type: Application
    Filed: September 21, 2015
    Publication date: February 22, 2018
    Applicant: CHANGZHOU BAMSTONE COMPOSITES CO., LTD.
    Inventors: Wei LIU, Ruimin XIAO, Lu WANG