公开(公告)号：US3632672A

公开(公告)日：1972-01-04

申请号：US3632672D

申请日：1968-09-03

Applicant: HOECHST AG

Inventor： KUHNE GERHARD ,  KUHLS JURGEN ,  HUBER HANS

IPC: C08F279/02 ,  C08L27/06 ,  C08L51/04 ,  C08F29/24 ,  C08F41/12

CPC classification number: C08L27/06 ,  C08F279/02 ,  C08L51/04 ,  Y10S525/932 ,  Y10S525/942 ,  C08F214/06 ,  C08L2666/24 ,  C08L2666/04

Abstract: CRYSTAL CLEAR MOULDING COMPOSITIONS OF HIGH IMPACT STRENGTH COMPRISING (A) A GRAFT COPOLYMER OF VINYL CHLORIDE AND AN ELASTOMER CONSISTING OF AT MOST 90% BY WEIGHT OF BUTADIENE OR ANOTHER CONJUGATED DIOLEFIN AND AT LEAST 10% BY WEIGHT OF COMONOMERS PART OF WHICH ARE COMONOMERS WHOSE HOMOPOLYMERS HAVE HIGHER REFRACTIVE INDICES THAN POLYVINYL CHLORIDE WHILE THE OTHER PART IS MONOMERS THAT IMPROVE THE COMPATIBILITY OF THE ELASTOMER WITH VINYL CHLORIDE, AND (B) A SUSPENSION OR MASS POLYVINYL CHLORIDE OR A CORRESPONDING COPOLYMER, AND A PROCESS FOR THEIR MANUFACTURE. CRYSTAL CLEAR MOULDING COMPOSITIONS OF HIGH IMPACT STRENGTH COMPRISING MIXTURES OF POLYVINYL CHLORIDE WITH GRAFT COPOLYMERS OF VINYL CHLORIDE ON ELASTOMERS AND PROCESS FOR THEIR MANUFACTURE.

公开(公告)号：US3654210A

公开(公告)日：1972-04-04

申请号：US3654210D

申请日：1969-07-28

Applicant: HOECHST AG

Inventor： KUHLS JURGEN ,  HAHN HELMUT ,  STEININGER ALFRED

IPC: C08F2/22 ,  C08F259/08 ,  C08F45/24

CPC classification number: C08F259/08 ,  Y10T428/2982 ,  C08F214/26

Abstract: THE PRESENT INVENTION RELATES TO AQUEOUS DISPERSIONS OF POLYMERS ON THE BASIS OF POLYTETRAFLUOROETHYLENE. THE POLYMERIC PARTICLES HAVE AN AVERAGE DIAMETER OF 0.2 TO 0.5U AND CONSIST OF A CORE MADE FROM 90-99% BY WEIGHT OF TETRAFLUROETHYLENE AND 1-10% BY WEIGHT OF CERTAIN HALOGEN CONTAINING COMONOMERS AND A SHELL OF TETRAFLUOROETHYLENE HOMOPOLYMER. THIS POLYMERIC MATERIAL HAS IMPROVED PROPERTIES FOR PASTE EXTRUSION PROCESSES.

公开(公告)号：BR8205249A

公开(公告)日：1983-08-16

申请号：BR8205249

申请日：1982-09-08

Applicant: HOECHST AG

Inventor： KUHLS JURGEN ,  WEISS EDUARD ,  BURGSTALLER GOTTFRIED

IPC: C08J3/16 ,  C08F14/00 ,  C08F16/00 ,  C08F16/14 ,  C08F214/26 ,  C08J3/12 ,  C08L27/18

Abstract: A process for the continuous agglomeration of granular tetrafluoroethylene polymer powders which cannot be processed from the melt to give molding powders having a high bulk density, an improved powder flow and particle stability and a narrow particle size distribution is described. In this process, the powder to be agglomerated is first introduced uniformly into a pretreatment stage and is dispersed and pre-agglomerated in this stage in the liquid agglomeration medium, composed of water and an organic liquid capable of wetting polytetrafluoroethylene, is then agglomerated to the desired average particle diameter in an agglomeration stage and is finally treated further in an after-treatment stage in order to develop the final shape of the particles. Finally, the powder is separated from the liquid medium and is dried. This makes it possible to obtain, in an economical manner and with excellent processing properties, high-grade agglomerated molding powders of such tetrafluoroethylene polymers, in particular of such polymers which have been modified with small quantities of perfluoro-(alkyl-vinyl) ethers.

公开(公告)号：AU3373489A

公开(公告)日：1989-11-02

申请号：AU3373489

申请日：1989-04-27

Applicant: HOECHST AG

Inventor： HERBRECHTSMEIER PETER ,  WIENERS GERHARD ,  KUHLS JURGEN ,  TSCHACHER MANFRED ,  FITZ HERBERT

IPC: G02B6/00 ,  B29C47/00 ,  B29D11/00 ,  C08L27/12 ,  G02B1/04 ,  G02B6/16

Abstract: An optical waveguide having a core/sheath structure whose sheath comprises a polymer which is based on vinylidene fluoride and at least one other vinyl monomer containing fluorine and has been modified and crosslinked with a trisalkoxyvinylsilane, is suitable for transmission paths of ca. 10 to 100 m and can also be used at a temperature above 100 DEG C. without any significant reduction in the transmission path.

公开(公告)号：CA1135283A

公开(公告)日：1982-11-09

申请号：CA344953

申请日：1980-02-01

Applicant: HOECHST AG

Inventor： KUHLS JURGEN

IPC: B01D15/00 ,  B01D15/04 ,  B01J20/34 ,  B01J47/00 ,  B01J47/014 ,  B01J49/00 ,  B01J49/07 ,  C07C51/47 ,  C07C53/21 ,  C08F6/14 ,  C08F14/18

Abstract: HOE 79/F 902 RECOVERY OF FLUORINATED EMULSIFYING ACIDS FROM BASIC ANION EXCHANGERS of the disclosure: To elute fluorinated emulsifying acids, especially perfluoro-carboxylic acids, from basic anion exchangers a mixture of dilute mineral acid and polar organic solvents is used. The solvent should be miscible with water preferably to an extent of at least 40 %. By this process the required amount of eluent and the time of elution can be reduced while simultaneously the amount of recovered emulsifying acid can be improved. The process is especially suitable for the recovery of fluorinated emulsifiers in the coagulation or concentration of fluoropolymerlatices.

公开(公告)号：CA1073147A

公开(公告)日：1980-03-04

申请号：CA253542

申请日：1976-05-27

Applicant: HOECHST AG

Inventor： KUHLS JURGEN ,  STEININGER ALFRED ,  FITZ HERBERT GERMANY FEDERAL R

IPC: C08F2/00 ,  C08F2/16 ,  C08F2/22 ,  C08F4/00 ,  C08F4/40 ,  C08F14/00 ,  C08F14/26 ,  C08F14/18

Abstract: HOE 75/F 905 PROCESS FOR THE MANUFACTURE OF HOMO- AND COPOLYMERS OF TETRAFLUORETHYLENE Polymers on the basis of tatrafluoroethylene are produced in the presence of a redox system as catalyst consisting of a usual peroxidic compound as oxidizing component and a water-soluble nitrogen compound liberating in situ a diimine under the polymerization conditions. The polymers obtained can be processed, inter alia, into thick walled articles on a ram extruder or into large sintered block free from crack formation.

公开(公告)号：CA824195A

公开(公告)日：1969-09-30

申请号：CA824195D

Applicant: HOECHST AG

Inventor： HAHN HELMUT ,  KUHLS JURGEN

公开(公告)号：AU620865B2

公开(公告)日：1992-02-27

申请号：AU3373789

申请日：1989-04-27

Applicant: HOECHST AG

Inventor： HERBRECHTSMEIER PETER ,  WIENERS GERHARD ,  KUHLS JURGEN ,  FITZ HERBERT ,  TSCHACHER MANFRED

IPC: G02B6/00 ,  B29C47/00 ,  G02B1/04 ,  G02B6/16

Abstract: An optical waveguide having a core-sheath structure whose core comprises a terpolymer based on vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene, is suitable for transmission paths of ca. 10 to ca. 100 m and can also be used at a temperature of above 100 DEG C. without significant reduction of the transmission path.

公开(公告)号：AU620864B2

公开(公告)日：1992-02-27

申请号：AU3373489

申请日：1989-04-27

Applicant: HOECHST AG

Inventor： HERBRECHTSMEIER PETER ,  WIENERS GERHARD ,  KUHLS JURGEN ,  TSCHACHER MANFRED ,  FITZ HERBERT

IPC: G02B6/00 ,  B29C47/00 ,  B29D11/00 ,  C08L27/12 ,  G02B1/04 ,  G02B6/16

Abstract: An optical waveguide having a core/sheath structure whose sheath comprises a polymer which is based on vinylidene fluoride and at least one other vinyl monomer containing fluorine and has been modified and crosslinked with a trisalkoxyvinylsilane, is suitable for transmission paths of ca. 10 to 100 m and can also be used at a temperature above 100 DEG C. without any significant reduction in the transmission path.

公开(公告)号：AU1434576A

公开(公告)日：1977-12-01

申请号：AU1434576

申请日：1976-05-27

Applicant: HOECHST AG

Inventor： KUHLS JURGEN ,  STEININGER ALFRED ,  FITZ HERBERT ,  SULZBACH REINHARD

IPC: C08F14/00 ,  C08F2/00 ,  C08F2/18 ,  C08F14/26 ,  C08F16/00 ,  C08F16/14 ,  C08F214/26 ,  C08F114/26