Title: Pellets of chlorinated vinyl chloride resin composition, pre-erpanded particles and process for preparing
Application Number: 87105405 Application Date: 1987.08.07
Publication Number: 1017516 Publication Date: 1988.04.06
Approval Pub. Date: 1991.04.03 Granted Pub. Date: 1991.04.03
International Classifi-cation: C08J9/22;C08L27/24
Applicant(s) Name: Kanegafuchi Corp. Address:
Inventor(s) Name: Hisao Shimazu;Yoshihiro Kimura
Attorney & Agent: CHEN JIZHUANG
Abstract:
    Pellets of a chlorinated vinyl chloride resin composition comprising inorganic materials, a solvent and a blowing agent; a pre-expanded particle of a chlorinated vinyl chloride resin comprising inorganic materials and a solvent and a process for preparing the pre-expanded particle of the chlorinated vinyl chloride resin containing inorganic materials which comprises kneading a chlorinated vinyl chloride resin, inorganic materials and a solvent, pelletizing the kneaded mixture, impregnating a physical blowing agent into the resulting pellets and pre-expanding the pellets. The present invention makes it possible to be contained a large amount of inorganic materials in a chlorinated vinyl chloride resin by forming a uniform gel phase of the chlorinated vinyl chloride resin and the solvent and wrapping inorganic materials in the gel phase.
Time: 8