公开(公告)号：JP2003246758A

公开(公告)日：2003-09-02

申请号：JP2003064450

申请日：2003-03-11

Applicant: HOECHST AG

Inventor： STERN ROLAND ,  LUPO DONALD ,  SALBECK JOSEF ,  SCHENK HERMANN ,  STEHLIN THOMAS ,  MUELLEN KLAUS ,  KREYENSCHMIDT MARTIN ,  SCHERF ULLRICH

IPC: C07C25/22 ,  C07B61/00 ,  C07C17/12 ,  C08G61/00 ,  C08G61/10 ,  C09K11/06 ,  H01L51/30 ,  H01L51/50 ,  H05B33/12 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a 2,7-dibromo-4,5,9,10- tetrahydropyrene derivative which is an intermediate for producing a poly(4,5,9,10-tetrahydropyrene-2,7-diyl) derivative useful for the electroluminescence material. SOLUTION: The method for producing a 2, 7-dibromo-4,5,9,10- tetrahydropyrene derivative comprises reacting a 4,5,9,10-tetrahydropyrene derivative with bromine in an inert organic solvent in the presence of a group VIII metal in the periodic table on an activated carbon as a carrier material. COPYRIGHT: (C)2003,JPO

公开(公告)号：PT97119A

公开(公告)日：1991-11-29

申请号：PT9711991

申请日：1991-03-22

Applicant: HOECHST AG

Inventor： GROH WERNER ,  BROCKMEYER ANDREAS ,  THEIS JURGEN ,  STEHLIN THOMAS

IPC: B29C45/14 ,  B29C45/00 ,  B29D11/00 ,  G02B1/04 ,  G02B6/28 ,  G02B6/00

Abstract: Method of manufacturing optical couplers from polymers, the coupler structure being produced with the aid of an injection-moulding process and amorphous polymers, in particular PMMA, polystyrenes, polycarbonates, polyolefins, polyesters, polysulphones, polyethersulphones, polyetherimides, polyacrylates, polyamides or polyestercarbonates being used with preference as polymers. The coupler element is solid and may be coated with a polymer which has a lower refractive index than the coupler, so that the diversion takes place in the coupler itself.

公开(公告)号：CA2041273A1

公开(公告)日：1991-10-27

申请号：CA2041273

申请日：1991-04-25

Applicant: HOECHST AG

Inventor： BRUECK MARTIN ,  VAAHS TILO ,  PEUCKERT MARCELLUS ,  SCHEUNEMANN UDE ,  STEHLIN THOMAS ,  THEIS JUERGEN

IPC: C04B35/589 ,  C03C13/04 ,  C04B35/584 ,  C04B41/50 ,  C04B41/87 ,  D01F9/10 ,  D06M11/00 ,  D06M11/60 ,  D06M101/00 ,  G02B1/00 ,  C04B35/58 ,  H01P3/00 ,  C01B21/068 ,  C08G77/54 ,  C04B35/64

Abstract: - ? HOE 90/F 129 of the disclosure Process for the preparation of optical materials from silicon nitride A process for the preparation of optical materials from silicon nitride by pyrolysis of polymeric silazanes, by pressing the pulverulent polymeric silazanes to give moldings before the pyrolysis or first dissolving the polymeric silazanes in an organic solvent, drawing fibers from this solution and pyrolyzing these fibers after evaporation of the solvent, or by melting polymeric silazanes, casting, injection-molding or extruding this melt to give moldings and subsequently pyrolyzing the moldings. An oxidic coating is produced on the silicon nitride molding in an oxygen-containing atmosphere during or after the pyrolysis. The pyrolysis can be carried out at 800-1000.degree.C in an atmosphere containing ammonia or an ammonia/inert gas mixture.

公开(公告)号：CA2056470A1

公开(公告)日：1992-05-30

申请号：CA2056470

申请日：1991-11-28

Applicant: HOECHST AG

Inventor： BROCKMEYER ANDREAS ,  VOWINKEL HANS ,  GROH WERNER ,  STEHLIN THOMAS ,  THEIS JUERGEN

IPC: B29C65/00 ,  B29C65/08 ,  B29D11/00 ,  C03B37/15 ,  G02B6/245 ,  G02B6/255 ,  G02B6/28

Abstract: HOE 90/F 357 Process for the production of an optical coupler for polymeric optical fibers In a process for the production of an optical coupler for polymeric optical fibers using ultrasound welding, the fibers are warmed, before the welding, to a temperature of from 50 to 250.degree.C for from 0.2 to 3 hours. The polymeric optical fibers are introduced into a plastic tube which melts with the fibers during the welding operation to form a unit. In another embodiment, a connector bar which has the same refractive index as the core material of the polymeric optical fibers can be inserted into the plastic tube, the polymeric optical fibers are brought into contact with the connector, and the plastic tube, the connector bar and the fibers are welded to one another under the action of ultrasound.

公开(公告)号：AU655519B2

公开(公告)日：1994-12-22

申请号：AU2991892

申请日：1992-12-04

Applicant: HOECHST AG

Inventor： ZIMMERMANN ANDREAS ,  BARGON JOACHIM ,  STEHLIN THOMAS ,  PRASS WERNER ,  GROH WERNER

IPC: G01N21/78 ,  C09K11/06 ,  G01N21/64

Abstract: Measuring device for the determination of the concentrations of inorganic and organic compounds in a sample, with a sensor which is to be brought into contact with the sample and which contains a fluorescence-optical indicator which after excitation via an excitation light source fluoresces as a function of the present concentration of the inorganic or organic compound to be detected. The measuring device has an arrangement for measuring and analyzing the incident radiation and the re-emitted fluorescence light. The measuring device contains a sensor element which is to be brought into contact with the sample and consists of a polymer matrix which is prepared from a) a matrix component which is derived from one or more units of the formula I where R - is hydrogen, deuterium or methyl; R - and R -, independently of one another, are hydrogen, deuterium or methyl, and the degree of polymerization, n is an integer in the range from 80 to 2500, preferably from 200 to 2000; b) a dye component which is immobilized covalently on the acyl chloride groups of the matrix component and c) one or more swelling components which are bound covalently to the remaining free acyl chloride groups of the matrix component.

公开(公告)号：AU647462B2

公开(公告)日：1994-03-24

申请号：AU7365291

申请日：1991-03-22

Applicant: HOECHST AG

Inventor： GROH WERNER ,  BROCKMEYER ANDREAS ,  THEIS JURGEN ,  STEHLIN THOMAS

IPC: B29C45/00 ,  B29C45/14 ,  B29D11/00 ,  G02B1/04 ,  G02B6/28 ,  H04B7/26 ,  H04B7/005

Abstract: Method of manufacturing optical couplers from polymers, the coupler structure being produced with the aid of an injection-moulding process and amorphous polymers, in particular PMMA, polystyrenes, polycarbonates, polyolefins, polyesters, polysulphones, polyethersulphones, polyetherimides, polyacrylates, polyamides or polyestercarbonates being used with preference as polymers. The coupler element is solid and may be coated with a polymer which has a lower refractive index than the coupler, so that the diversion takes place in the coupler itself.

公开(公告)号：AU641295B2

公开(公告)日：1993-09-16

申请号：AU8824491

申请日：1991-11-28

Applicant: HOECHST AG

Inventor： BROCKMEYER ANDREAS ,  VOWINKEL HANS ,  GROH WERNER ,  STEHLIN THOMAS ,  THEIS JURGEN

IPC: B29C65/00 ,  B29C65/08 ,  B29D11/00 ,  C03B37/15 ,  G02B6/245 ,  G02B6/255 ,  G02B6/28 ,  G02B6/26 ,  B23K28/00

Abstract: Process for manufacturing an optical coupler for polymer light-guides with the aid of the ultrasonic welding technique. The fibres (2, 6) are heated to a temperature of 50 to 250 DEG C for 0.2 to 3 hours before welding. The polymer light-guides are introduced into a small plastic tube (5), which during the welding operation fuses with the said light-guides to form a unit. In another embodiment, a mixer rod, which has the same refractive index as the core material of the polymeric optical fibres, can be introduced into the small plastic tube (5), the polymeric optical fibres are brought into contact with it and the small plastic tube, the mixer rod and the fibres are welded to one another under the effect of ultrasound. … …

公开(公告)号：AU7365291A

公开(公告)日：1991-10-03

申请号：AU7365291

申请日：1991-03-22

Applicant: HOECHST AG

Inventor： GROH WERNER ,  BROCKMEYER ANDREAS ,  THEIS JURGEN ,  STEHLIN THOMAS

IPC: B29C45/00 ,  B29C45/14 ,  B29D11/00 ,  G02B1/04 ,  G02B6/28 ,  H04B7/26 ,  H04B7/005

Abstract: Method of manufacturing optical couplers from polymers, the coupler structure being produced with the aid of an injection-moulding process and amorphous polymers, in particular PMMA, polystyrenes, polycarbonates, polyolefins, polyesters, polysulphones, polyethersulphones, polyetherimides, polyacrylates, polyamides or polyestercarbonates being used with preference as polymers. The coupler element is solid and may be coated with a polymer which has a lower refractive index than the coupler, so that the diversion takes place in the coupler itself.

公开(公告)号：CA2038906A1

公开(公告)日：1991-09-24

申请号：CA2038906

申请日：1991-03-22

Applicant: HOECHST AG

Inventor： GROH WERNER ,  BROCKMEYER ANDREAS ,  THEIS JUERGEN ,  STEHLIN THOMAS

IPC: B29C45/00 ,  B29C45/14 ,  B29D11/00 ,  G02B1/04 ,  G02B6/28

Abstract: HOE 90/F 095 Process for the production of optical couplers from polymers A process for the production of optical couplers from polymers in which the coupler structure is produced by injection molding and the polymers employed are preferably amorphous polymers, in particular PMMA, polystyrenes, polycarbonates, polyolefins, polyesters, polysulfones, polyether sulfones, polyether imides, polyarylates, polyamides or polyester carbonates. The coupler element is solid and may be coated with a polymer which has a lower refractive index than the coupler, so that the light propagation takes place in the coupler itself.

公开(公告)号：DE59407397D1

公开(公告)日：1999-01-14

申请号：DE59407397

申请日：1994-09-01

Applicant: HOECHST AG

Inventor： STERN ROLAND ,  SCHENK HERMANN ,  SALBECK JOSEF ,  STEHLIN THOMAS ,  SCHERF ULLRICH ,  MUELLEN KLAUS ,  LEISING GUENTHER

IPC: C09B69/10 ,  C08G61/00 ,  C08G61/10 ,  C08G61/12 ,  C09K11/06 ,  H01L51/30 ,  H01L51/50 ,  H05B33/14

Abstract: PCT No. PCT/EP94/02899 Sec. 371 Date Feb. 16, 1996 Sec. 102(e) Date Feb. 16, 1996 PCT Filed Sep. 1, 1994 PCT Pub. No. WO95/07955 PCT Pub. Date Mar. 23, 1995Use in electrooptical switching and display devices of a polymer comprising conjugatively linked chromophore segments whose emission properties are determined by the emission properties of the individual chromophore segments. Electroluminescence devices comprising the polymers of the present invention have, inter alia, a high color purity. The polymers used according to the present invention enable, in particular, blue and white electroluminescence to also be achieved.