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    2.
    发明专利
    未知

    公开(公告)号：DE59100855D1

    公开(公告)日：1994-02-24

    申请号：DE59100855

    申请日：1991-12-12

    Applicant: HOECHST AG

    Inventor： SCHLIPF MICHAEL DR ,  MERTEN GERHARD

    IPC: C08F14/18 ,  C08F18/02 ,  C08F218/04 ,  C08F214/18 ,  C08G18/62 ,  C08G18/79 ,  C08G18/80 ,  C09D5/03 ,  C09D5/46 ,  C09D127/12 ,  C09D131/02

    Abstract: A fluorine-containing powder coating is described, comprising a) a crosslinkable, fluorine-containing copolymer, composed of a vinyl ester of a highly branched carboxylic acid, whose acyl radical has 9 carbon atoms and is composed of isomers having two quaternary carbon atoms, to which 0 to 80 mol% of isomers which contain one quaternary carbon atom together with at least one tertiary carbon atom in the acyl radical are admixed, of a vinyl monomer containing OH groups, and of a fluoroolefin of the general formula CF2=CFX, in which X=F, a perfluoroalkyl radical having 1 to 8 carbon atoms or Cl, and b) 20 to 60% by weight of a crosslinking agent suitable for powder coating formulations. Preferably, the latter is a blocked polyisocyanate.

    3.
    发明专利
    未知

    公开(公告)号：DE3885311D1

    公开(公告)日：1993-12-09

    申请号：DE3885311

    申请日：1988-01-04

    Applicant: HOECHST AG

    Inventor： SCHLIPF MICHAEL DR ,  MANZ ALBRECHT DR ,  LOEHR GERNOT DR

    IPC: C08F16/14 ,  C08F18/02 ,  C08F214/26 ,  C08F216/14 ,  C08F218/04 ,  C08F218/10 ,  C09D127/12 ,  C09D127/18 ,  C09D129/00 ,  C09D131/02

    Abstract: Crosslinkable, fluorine-containing copolymers, comprising: (a) 15 to 70 mol % of copolymerized units of a vinyl ester of the formula in which R1, R2 and R3 are branched or straight-chain alkyl radicals or cycloalkyl radicals, at most one of these radicals is hydrogen and at least one of these radicals is a methyl group, and where, furthermore, the entire acyl radical of the vinyl ester contains at least 9 and at most 28 carbon atoms, (b) 5 to 50 mol % of copolymerized units of a hydroxyalkyl vinyl ether of the formula CH2=CH-O-R4-OH in which R4OH is a branched or straight-chain hydroxy-alkyl group having 1 to 6 carbon atoms, and (c) copolymerized units of tertrafluoroethylene in an amount which makes up the sum of components (a) plus (b) plus (c) to 100, but with the proviso that at least 10 mol % of copolymerized units of tetrafluoroethylene are present in the copolymer. From these, highly weather-resistant surface-coating compositions are obtained on addition of crosslinking agents, solvents and conventional additives.

    4.
    发明专利
    未知

    公开(公告)号：DE4040129A1

    公开(公告)日：1992-06-17

    申请号：DE4040129

    申请日：1990-12-15

    Applicant: HOECHST AG

    Inventor： SCHLIPF MICHAEL DR ,  WEISS EDUARD

    IPC: C08F8/12 ,  C09D127/12 ,  C09D131/02

    Abstract: A process is described for the preparation of a crosslinkable paint binder by working up a solution of a fluorine-containing copolymer composed of copolymerized units of a perfluoroolefin, a vinyl ester of a short-chain, saponifiable carboxylic acid and a vinyl ester of a strongly branched carboxylic acid which resists saponification. In this process, the bulk of the solvent and the residual monomers are first removed by distillation, the residual highly viscous copolymer is then dissolved in a mixture of alkanol and another solvent which is also capable of dissolving the saponified copolymer to form a homogeneous solution, and the alkaline saponification is subsequently carried out. If desired, the solvent is removed and exchanged for a paint solvent and this solution is finally filtered. A mild saponification is achieved in this manner.

    6.
    发明专利
    未知

    公开(公告)号：DE59105109D1

    公开(公告)日：1995-05-11

    申请号：DE59105109

    申请日：1991-12-12

    Applicant: HOECHST AG

    Inventor： SCHLIPF MICHAEL DR ,  WEISS EDUARD

    IPC: C08F8/12 ,  C09D127/12 ,  C09D131/02

    Abstract: A process is described for the preparation of a crosslinkable paint binder by working up a solution of a fluorine-containing copolymer composed of copolymerized units of a perfluoroolefin, a vinyl ester of a short-chain, saponifiable carboxylic acid and a vinyl ester of a strongly branched carboxylic acid which resists saponification. In this process, the bulk of the solvent and the residual monomers are first removed by distillation, the residual highly viscous copolymer is then dissolved in a mixture of alkanol and another solvent which is also capable of dissolving the saponified copolymer to form a homogeneous solution, and the alkaline saponification is subsequently carried out. If desired, the solvent is removed and exchanged for a paint solvent and this solution is finally filtered. A mild saponification is achieved in this manner.

    7.
    发明专利
    未知

    公开(公告)号：DE59104999D1

    公开(公告)日：1995-04-27

    申请号：DE59104999

    申请日：1991-12-12

    Applicant: HOECHST AG

    Inventor： SCHLIPF MICHAEL DR ,  MERTEN GERHARD

    IPC: C08F8/12 ,  C08F14/18 ,  C08F16/02 ,  C08F18/02 ,  C08F214/18 ,  C08F216/06 ,  C08F218/02 ,  C08F218/04 ,  C08F218/08 ,  C08F218/10 ,  C09D127/12 ,  C09D129/04 ,  C09D131/02 ,  C09D131/04 ,  C09J131/04

    Abstract: A crosslinkable, fluorine-containing copolymer is described which comprises a) from 10 to 60 mol-% of copolymerized units of a vinyl ester of a highly branched carboxylic acid whose acyl radical has 9 carbon atoms and comprises isomers containing two quaternary carbon atoms to which from 0 to 80 mol-% of isomers containing one quaternary carbon atom together with at least one tertiary carbon atom in the acyl radical are admixed, b) from 20 to 50 mol-% of copolymerized units of a vinyl ester of a short-chain carboxylic acid, where from 50 to 100% of the copolymerized units of this vinyl ester b) are in the OH form obtained by hydrolysis, and c) copolymerized units of a perfluoroolefin of the formula CF2=CFRf in which Rf is F or a perfluoroalkyl radical having 1 to 8 carbon atoms, in an amount which makes the sum of components a)+b)+c) up to 100 mol-%, but with the proviso that at least 10 mol-% of the perfluoroolefin are present in the copolymer. The copolymers are suitable as binders for surface coating compositions of all types, in particular for industrial finishes.

    8.
    发明专利
    未知

    公开(公告)号：ES2062652T3

    公开(公告)日：1994-12-16

    申请号：ES91121357

    申请日：1991-12-12

    Applicant: HOECHST AG

    Inventor： SCHLIPF MICHAEL DR ,  BLADEL HERMANN

    IPC: C09D127/12 ,  C09D129/00 ,  C09D129/10 ,  C09D131/02

    Abstract: The fluorine-containing paint binder contains a) 5 to 80% by weight, based on the sum of the components a) + b), of a finely divided low molecular weight polyfluoro-olefin, derived from fluoro-olefins of the formula CF2=CFX, in which X is F or Cl, with a melt viscosity of 10 to 10 Pa.s, b) 95 to 20% by weight, based on the sum of the components a) + b), of a fluorine-containing copolymer, which is composed of copolymerised units of a fluoro-olefin of the general formula CF2 = CFY, in which Y is F, a perfluoroalkyl radical having 1 to 8 C atoms or Cl, of copolymerised units of a vinyl ester of a highly branched carboxylic acid with an acyl radical of 9 to 11 C atoms and of copolymerised units of a vinyl monomer containing OH groups, and c) 20 to 300 parts by weight, based on 100 parts by weight of the sum a) + b), of a customary paint solvent. c

    10.
    发明专利
    未知

    公开(公告)号：DE4040128A1

    公开(公告)日：1992-06-17

    申请号：DE4040128

    申请日：1990-12-15

    Applicant: HOECHST AG

    Inventor： SCHLIPF MICHAEL DR ,  BLAEDEL HERMANN DIPL ING

    IPC: C09D127/12 ,  C09D129/00 ,  C09D129/10 ,  C09D131/02

    Abstract: The fluorine-containing paint binder contains a) 5 to 80% by weight, based on the sum of the components a) + b), of a finely divided low molecular weight polyfluoro-olefin, derived from fluoro-olefins of the formula CF2=CFX, in which X is F or Cl, with a melt viscosity of 10 to 10 Pa.s, b) 95 to 20% by weight, based on the sum of the components a) + b), of a fluorine-containing copolymer, which is composed of copolymerised units of a fluoro-olefin of the general formula CF2 = CFY, in which Y is F, a perfluoroalkyl radical having 1 to 8 C atoms or Cl, of copolymerised units of a vinyl ester of a highly branched carboxylic acid with an acyl radical of 9 to 11 C atoms and of copolymerised units of a vinyl monomer containing OH groups, and c) 20 to 300 parts by weight, based on 100 parts by weight of the sum a) + b), of a customary paint solvent. c

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