Procédé de préparation d'un polymère de chlorure de vinyle

Process for production of vinyl chloride polymer

Verfahren zur Herstellung eines Vinylchloridpolymers


This process is a process for production of a vinyl chloride polymer by suspension polymerization or emulsion polymerization of vinyl chloride monomer or a mixture of vinyl chloride monomer with a vinyl monomer copolymerizable with said vinyl chloride monomer in an aqueous medium, characterized in that the polymerization is carried out in a polymerizer, the inner wall surface and portions of the auxiliary equipment thereof which may come into contact with the monomer during polymerization being previously coated with a scaling preventive comprising at least one selected from dyes, pigments and aromatic or heterocyclic compounds having at least 5 conjugated π bonds, while controlling the chloride ion concentration in the reaction mixture to not higher than 100 ppm. According to said process, scaling onto the inner wall surface of a polymerizer, etc. during polymerization can be prevented effectively and surely.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    JP-S5536288-AMarch 13, 1980Goodrich Co B FReactor coating method by steam application
    JP-S56501116-AAugust 13, 1981
    JP-S565444-AJanuary 20, 1981Beecham Group LtdEthanamine derivative* its manufacture and its medicinal composition
    JP-S5761001-AApril 13, 1982Shin Etsu Chem Co LtdPolymerizer
    JP-S5911303-AJanuary 20, 1984Shin Etsu Chem Co LtdPolymerization of vinyl monomer

NO-Patent Citations (1)

    JIS K, 1974, pages 0102

Cited By (24)

    Publication numberPublication dateAssigneeTitle
    CN-105318109-AFebruary 10, 2016江苏大力城电气有限公司Connecting buckle for constant support and hanger
    EP-0372968-A2June 13, 1990Shin-Etsu Chemical Co., Ltd.Procédé pour empêcher la formation de dépôts de polyméres
    EP-0372968-A3October 23, 1991Shin-Etsu Chemical Co., Ltd.Method of preventing polymer scale formation
    EP-0540934-A1May 12, 1993Shin-Etsu Chemical Co., Ltd.Mittel zur Verhinderung von Polymerverkrustung, Polymerisationsgefäss, in dem die Verkrustung vermieden wird und Verfahren zur Herstellung von Polymeren unter Benutzung dieses Gefässes
    EP-0554332-A1August 11, 1993E.I. Du Pont De Nemours And CompanyPolymerisationshemmung innenliegender oberflächen durch phenothiazinhaltige farbe
    EP-0554332-A4September 15, 1993E.I. Du Pont De Nemours And CompanyInhibition of polymerization on interior surfaces using paint containing phenothiazine
    EP-0909767-A1April 21, 1999Mitsubishi Gas Chemical Company, Inc.Resin composition and distillation methods for inhibiting polymerization of vinyl compound
    US-5371199-ADecember 06, 1994The Trustees Of The University Of PennsylvaniaSubstituted porphyrins, porphyrin-containing polymers, and synthetic methods therefor
    US-5424003-AJune 13, 1995Shin-Etsu Chemical Co., Ltd.Reaction product of an aromatic amine and quinone as a polymer scale preventive agent
    US-5493017-AFebruary 20, 1996The Trustees Of The University Of PennsylvaniaRing-metalated porphyrins
    US-5607503-AMarch 04, 1997Refract-A-Gard Pty LimitedSilica-based binder
    US-5756723-AMay 26, 1998The Trustees Of The University Of PennsylvaniaMetal-mediated cross-coupling with ring-metalated porphyrins
    US-5817830-AOctober 06, 1998Trustees Of The University Of Pennsylvania, Board Of Regents Of The University Of NebraskaPyrrolic compounds
    US-5851988-ADecember 22, 1998Terrapin Technologies, Inc.Nonpeptide insulin receptor agonists
    US-5856515-AJanuary 05, 1999Trustees Of The University Of PennsylvaniaElectron-deficient porphyrins and processes and intermediates for preparing same
    US-6184226-B1February 06, 2001Scios Inc.Quinazoline derivatives as inhibitors of P-38 α
    US-6239199-B1May 29, 2001Mitsubishi Gas Chemical Company, Inc.Resin composition resin molding and method for inhibiting polymerization of vinyl compound
    US-6277989-B1August 21, 2001Scios, Inc.Quinazoline derivatives as medicaments
    US-6476031-B1November 05, 2002Scios, Inc.Quinazoline derivatives as medicaments
    US-6903096-B2June 07, 2005Scios, Inc.Quinazoline derivatives as medicaments
    US-7345045-B2March 18, 2008Scios, Inc.Pyrido-pyrimidine compounds as medicaments
    US-9434844-B2September 06, 2016Ineos Europe AgAdditive, composition comprising it and use thereof
    US-RE38915-EDecember 06, 2005Telik, Inc.Nonpeptide insulin receptor agonists
    US-RE39866-EOctober 02, 2007Telik, Inc.Nonpeptide insulin receptor agonists