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    Vinyl chloride polymer mixtures for the preparation of transparent rigid sheets
    3.
    发明授权
    Vinyl chloride polymer mixtures for the preparation of transparent rigid sheets 失效
    用于制备透明刚性片的VINYL氯化物聚合物混合物

    公开(公告)号：US3575906A

    公开(公告)日：1971-04-20

    申请号：US3575906D

    申请日：1968-06-07

    Applicant: HOECHST AG

    Inventor： KUHNE GERHARD ,  ZENTNER ERICH

    IPC: C08L27/06 ,  C08L51/04 ,  C08F29/24 ,  C08F37/18 ,  C08F45/58

    CPC classification number: C08L27/06 ,  C08L51/04 ,  C08L51/06 ,  C08L9/02 ,  C08L2666/02

    Abstract: THE PRESENT INVENTION RELATES TO RIGID SHEETS ON THE BASIS OF POLYVINYL CHLORIDE, PLASTOMERS AND ELASTOMERS, SAID SHEETS BEING OBTAINED BY A CALENDERING PROCESS. THE MATERIAL COMPRISES (A) AN EMULSION HOMO- OR COPOLYMER OF VINYL CHLORIDE, (B) A SUSPENSION POLYMER OF VINYL CHLORIDE, (C) A GRAFT COPOLYMER OF VINYL CHLORIDE BASED ON A CROSS-LINKED COPOLYMER OF A CONJUGATED DIENE AND ACRYLOOR METHACRYLONITRILE, AND EVENTUALLY (D) A CROSS-LINKED ELASTOMERIC COPOLYMER SIMILAR TO THE BASIC COPOLYMER OF (C). THE SHEETS ACCORDING TO THE INVENTION HAVE AN IMPROVED IMPACT RESISTANCE AND DEEP-DRAWING PROPERTIES IN COMBINATION WITH A GOOD TRANSPARENCY AND GOOD OTHER PHYSICAL CONSTANTS.

    Vinyl chloride polymer mixture for the preparation of transparent rigid sheets
    4.
    发明授权
    Vinyl chloride polymer mixture for the preparation of transparent rigid sheets 失效
    用于制备透明刚性片的乙烯基氯化聚合物混合物

    公开(公告)号：US3510543A

    公开(公告)日：1970-05-05

    申请号：US3510543D

    申请日：1965-10-22

    Applicant: HOECHST AG

    Inventor： KUHNE GERHARD ,  ZENTNER ERICH

    IPC: C08L27/06 ,  C08L51/04 ,  C08F29/24 ,  C08F15/06

    CPC classification number: C08L27/06 ,  C08K5/00 ,  C08L9/00 ,  C08L51/04 ,  C08L2205/02 ,  C08L9/02 ,  C08L2666/02

    Abstract: A polymer mixture comprises (a) 50 to 70% by weight of an emulsion homopolymer or copolymer of vinyl chloride having a K value of 58 to 72; (b) 10 to 30% of a suspension polymer of vinyl chloride having a K value of 50 to 65; and (c) 0.5 to 40% of a graft copolymer of vinyl chloride which has been prepared by the emulsion polymerization technique and in which the vinyl chloride is grafted on a cross-linked copolymer of a conjugated diene and acrylonitrile or methacrylonitrile having a gel content of more than 90%, the graft copolymer being insoluble in organic solvents; the percentages being calculated on the total weight of the mixture. The mixture may also contain (d) 1 to 10% of a cross-linked elastomeric copolymer prepared by emulsion polymerization of a conjugated diene and acrylonitrile or methacrylonitrile, said copolymer being insoluble in organic solvents and having a gel content of more than 80%. Other possible ingredients of the mixture are a stabilizer comprising (i) diphenyl thiourea or alpha-phenyl indole, epoxidized natural oils and an alkalizing water-soluble salt or (ii) an epoxy compound, an organo tin compound, a heavy metal salt of a fatty acid or a mixture of aminocrotonic acid esters of fatty alcohols; and a wax, fatty acid ester or polyolefin as lubricating agent. In the example, the mixture comprises (a) an emulsion polymerized vinyl chloride homopolymer, (b) a suspension polymerized vinyl chloride homopolymer, (c) a graft polymer of vinyl chloride on a cross-linked butadiene-acrylonitrile copolymer, (d) a butadiene-acrylonitrile elastomer, diphenyl thiourea, di-n-octyl tin-bis-thiogly-collic acid octyl ester, epoxidized soybean oil and montan wax.

    PROCESS FOR THE MANUFACTURE OF A POLYVINYL CHLORIDE FILM WITH SPECIAL PROPERTIES
    5.
    发明专利
    PROCESS FOR THE MANUFACTURE OF A POLYVINYL CHLORIDE FILM WITH SPECIAL PROPERTIES 未知

    公开(公告)号：DE3278361D1

    公开(公告)日：1988-05-26

    申请号：DE3278361

    申请日：1982-08-21

    Applicant: HOECHST AG

    Inventor： ZENTNER ERICH ,  BINGEMANN WILHELM

    IPC: B29C49/00 ,  B29C43/24 ,  B29C55/00 ,  B29C55/04 ,  B29D7/00 ,  C08J5/18 ,  C08L27/06

    Abstract: A stretched and delustered film is described which is essentially comprised of vinyl chloride polymers and which has a specific roughness, a specific luster value, a high heat shrinkage in transverse direction and a relatively low heat shrinkage in longitudinal direction and retains the delustered surface texture even on heating up to 140 DEG C. The new film is manufactured by calendering a molding composition essentially comprised of vinyl chloride polymers, and by delustering and transversely stretching the film, the calendering, delustering and transverse stretching being carried out in the order indicated and while maintaining certain process conditions. The new film is particularly suitable for skin packaging purposes.

    Reducing vinyl chloride content of PVC powders - by mixing and heating in high speed mixer with continuous or portionwise addn. of water
    7.
    发明专利
    Reducing vinyl chloride content of PVC powders - by mixing and heating in high speed mixer with continuous or portionwise addn. of water 未知

    公开(公告)号：DE2617497A1

    公开(公告)日：1977-11-03

    申请号：DE2617497

    申请日：1976-04-22

    Applicant: HOECHST AG

    Inventor： GROH RUDOLF ,  MARTL GERWALD ,  STEFFEN ROBERT DR ,  ZENTNER ERICH

    IPC: B29B9/00 ,  B29B13/00 ,  B29B15/00 ,  C08F6/00 ,  C08F6/06 ,  C08L27/06

    Abstract: PVC powder compsns. with low vinyl chloride monomer content are made by subjecting the PVC, opt. together with known additives such as stabilisers, plasticisers, fillers, pigments and modifiers, to intensive mechanical mixing while simultaneously heating it to a final temp. of >=70 degrees C and with the addn. of water, either portionwise or continuously, before the mixt. reaches the final temp. Pref. 1-10 wt% water is added and the final temp. is 140 degrees C. The water may be added e.g. in 2-4 virtually equal portions, the first portion being added at about 70-80 degrees C and the remaining portions at 10-30 degrees intervals in the range 80-120 degrees C, or continuously, starting at about 70 degrees C and finishining at about 120 degrees C. The heating may be completely or substantially caused by the intensive mixing. The process gives good removal of vinyl chloride monomer from the powder compsns. and gives prods. which can be processed without releasing toxic vinyl chloride vapours into the atmos.

    10.
    发明专利
    未知

    公开(公告)号：DE3133507A1

    公开(公告)日：1983-03-17

    申请号：DE3133507

    申请日：1981-08-25

    Applicant: HOECHST AG

    Inventor： ZENTNER ERICH ,  BINGEMANN WILHELM

    IPC: B29C49/00 ,  B29C43/24 ,  B29C55/00 ,  B29C55/04 ,  B29D7/00 ,  C08J5/18 ,  C08L27/06 ,  B29D7/14 ,  B65D65/38

    Abstract: A stretched and delustered film is described which is essentially comprised of vinyl chloride polymers and which has a specific roughness, a specific luster value, a high heat shrinkage in transverse direction and a relatively low heat shrinkage in longitudinal direction and retains the delustered surface texture even on heating up to 140 DEG C. The new film is manufactured by calendering a molding composition essentially comprised of vinyl chloride polymers, and by delustering and transversely stretching the film, the calendering, delustering and transverse stretching being carried out in the order indicated and while maintaining certain process conditions. The new film is particularly suitable for skin packaging purposes.

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