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    5.
    发明专利
    未知

    公开(公告)号：SE7800989L

    公开(公告)日：1978-07-28

    申请号：SE7800989

    申请日：1978-01-26

    Applicant: HOECHST AG

    Inventor： FISCHER E ,  BRANDRUP J ,  WEINLICH J

    IPC: C08F14/00 ,  C07D277/82 ,  C08F2/00 ,  C08F2/16 ,  C08F291/00 ,  C08F14/06

    Abstract: This invention is directed to a process for the preparation of vinyl chloride homopolymers, copolymers thereof with other monomers or graft copolymers containing at least 50% by weight of vinyl chloride units. The monomer or monomer mixture is polymerized in aqueous dispersion in the presence of a radical-forming catalyst in a reactor. The inner walls of the reactor and other portions thereof where polymer deposits may form are coated with a coating containing a compound of the formula I (I) wherein R1 is hydrogen, a hydrocarbon radical of aliphatic character having from 1 to 12 carbon atoms, an acyl having from 2 to 8 carbon atoms, R2 is R1 or R2 and R1 together are alkylidene or aralkylidene, R3 is hydrogen or a hydrocarbon radical of aliphatic character having from 1 to 12 carbon atoms; or at least one of the radicals, R1, R2 or R3 being hydrogen, R4 is R3, furthermore alkoxy having from 1 to 6 carbon atoms, hydroxyl, halogen, amino, (di)alkylamino having from 1 to 12 carbon atoms, carboxyl, sulfoxyl (=SO3H); R5 is R4; or R4 and R5 together are an aromatic ring.

    7.
    发明专利
    未知

    公开(公告)号：DK132285B

    公开(公告)日：1975-11-17

    申请号：DK340170

    申请日：1970-06-30

    Applicant: HOECHST AG

    Inventor： BRANDRUP J ,  FREUND G ,  BRINKMANN L ,  PFISTER H

    IPC: C08K3/16 ,  C08L67/02

    Abstract: 1,268,155. Polyester moulding compositions. FARBWERKE HOECHST A.G. 1 July, 1970 [1 July, 1969], No. 31874/70. Heading C3R. A thermoplastic moulding composition comprises a mixture of (a) a linear saturated polyester of an aromatic dicarboxylic acid, and, optionally, a small amount of an aliphatic dicarboxylic acid with a saturated aliphatic or cycloaliphatic diol, or of hydroxycarboxylic acid and (b) sodium fluoride having a particle size of less than 10 microns in an amount of from 0.005 to 5% by weight of the polyester. The polyester is preferably polyethylene terephthalate, a polyethylene terephthalate copolyester or polycyclohexane-1,4-dimethylol terephthalate. The composition may also contain talc or boron nitride as additional nucleating agents; salts and ester salts of montan wax, paraffin sulphates and olefin sulphates as mould release agents or copolymers of ethylene and vinyl acetate, ethylene and acrylic acid ester or butadiene and styrene to improve impact strength. Particles of the composition may be coated with waxes, e.g. paraffin wax to keep the moisture content low.

    8.
    发明专利
    未知

    公开(公告)号：SE357974B

    公开(公告)日：1973-07-16

    申请号：SE896070

    申请日：1970-06-29

    Applicant: HOECHST AG

    Inventor： BRANDRUP J ,  FREUND G ,  BRINKMANN L ,  PFISTER H

    IPC: C08K3/16 ,  C08G39/02

    Abstract: 1,268,155. Polyester moulding compositions. FARBWERKE HOECHST A.G. 1 July, 1970 [1 July, 1969], No. 31874/70. Heading C3R. A thermoplastic moulding composition comprises a mixture of (a) a linear saturated polyester of an aromatic dicarboxylic acid, and, optionally, a small amount of an aliphatic dicarboxylic acid with a saturated aliphatic or cycloaliphatic diol, or of hydroxycarboxylic acid and (b) sodium fluoride having a particle size of less than 10 microns in an amount of from 0.005 to 5% by weight of the polyester. The polyester is preferably polyethylene terephthalate, a polyethylene terephthalate copolyester or polycyclohexane-1,4-dimethylol terephthalate. The composition may also contain talc or boron nitride as additional nucleating agents; salts and ester salts of montan wax, paraffin sulphates and olefin sulphates as mould release agents or copolymers of ethylene and vinyl acetate, ethylene and acrylic acid ester or butadiene and styrene to improve impact strength. Particles of the composition may be coated with waxes, e.g. paraffin wax to keep the moisture content low.

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