公开(公告)号：CA2018766A1

公开(公告)日：1990-12-13

申请号：CA2018766

申请日：1990-06-12

Applicant: HOECHST AG

Inventor： COUTANDIN JOCHEN ,  GROH WERNER ,  HERBRECHTSMEIER PETER ,  THEIS JURGEN

IPC: G02B6/26 ,  B23K26/402 ,  B29C65/70 ,  G02B6/28 ,  G02B6/36 ,  G02B6/255

Abstract: HOE 89/F 179 Method of producing a planar optical coupler Channels in which polymeric optical waveguides can be laid can be milled in surfaces of plastic sheets by means of an excimer laser. The free space between the optical waveguides is filled up with a transparent casting resin. The channels produced by means of the laser are distinguished by high dimensional accuracy and low surface roughness.

公开(公告)号：FI901179A0

公开(公告)日：1990-03-08

申请号：FI901179

申请日：1990-03-08

Applicant: HOECHST AG

Inventor： DAMMEL RALPH ,  LINGNAU JURGEN ,  PAWLOWSKI GEORG ,  THEIS JURGEN

IPC: G03F7/039 ,  C07C271/28 ,  C07C275/50 ,  C08K5/00 ,  C08L61/00 ,  C08L61/04 ,  G03F7/004 ,  H01L21/027 ,  G03F

Abstract: A radiation-curable mixture is proposed which contains a compound which forms an acid when exposed to high-energy radiation and a compound which is acid-cleavable, and which is characterised in that the compound which forms an acid contains aliphatically bound halogen (chlorine or bromine) and has a pKa of less than 12 or is a derivative of a compound having such a pKa, which derivative can be converted into the free compound by acid catalysis. The composition claimed, and in particular the recording material prepared therefrom, has a higher sensitivity and an improved resolution, and in addition exhibits no image haze after development.

公开(公告)号：FI901178A0

公开(公告)日：1990-03-08

申请号：FI901178

申请日：1990-03-08

Applicant: HOECHST AG

Inventor： DAMMEL RALPH ,  LINGNAU JURGEN ,  PAWLOWSKI GEORG ,  THEIS JURGEN

IPC: G03F7/039 ,  G03F7/004 ,  H01L21/027 ,  G03F

Abstract: A positive radiation-sensitive mixture is disclosed which contains a compound which forms an acid under the action of high-energy radiation, and an acid-cleavable compound, wherein the compound which forms an acid contains aliphatically bound halogen (chlorine or bromine) and has a pKa value of less than about 12 or is a derivative of a compound having such a pKa value which can be converted into the free compound by acid catalysis. A positive recording material and a process for recording high-energy radiation using the material are also disclosed. The mixture, and in particular the recording material produced therefrom, has relatively high sensitivity and improved resolution and, in addition, does not exhibit image fogging after development.

公开(公告)号：AU626950B2

公开(公告)日：1992-08-13

申请号：AU4589389

申请日：1989-12-06

Applicant: HOECHST AG

Inventor： GROH WERNER ,  COUTANDIN JOCHEN ,  HERBRECHTSMEIER PETER ,  THEIS JURGEN

IPC: G01T1/00 ,  G01T1/20 ,  G01T1/203 ,  G01T5/08 ,  G01J1/58

公开(公告)号：AU8824491A

公开(公告)日：1992-06-04

申请号：AU8824491

申请日：1991-11-28

Applicant: HOECHST AG

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

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：AU622329B2

公开(公告)日：1992-04-02

申请号：AU5697490

申请日：1990-06-12

Applicant: HOECHST AG

Inventor： COUTANDIN JOCHEN ,  GROH WERNER ,  HERBRECHTSMEIER PETER ,  THEIS JURGEN

IPC: G02B6/26 ,  B23K26/402 ,  B29C65/70 ,  G02B6/28 ,  G02B6/36 ,  B29C59/16 ,  B23C3/13 ,  B23K26/00

Abstract: Channels, in which polymer light waveguides can be inserted, can be milled in the surfaces of plastic sheets by means of an excimer laser. The free space between the light waveguides is filled with a transparent cast resin. … The channels, produced by means of the laser, are distinguished by high dimensional accuracy and low surface roughness. … …

公开(公告)号：AU5432990A

公开(公告)日：1990-11-05

申请号：AU5432990

申请日：1990-04-12

Applicant: HOECHST AG

Inventor： GROH WERNER ,  HERBRECHTSMEIER PETER ,  HEUMULLER RUDOLF ,  THEIS JURGEN ,  WIENERS GERHARD

IPC: C08F220/22 ,  G02B1/04

公开(公告)号：ES2067738T3

公开(公告)日：1995-04-01

申请号：ES90906164

申请日：1990-04-12

Applicant: HOECHST AG

Inventor： GROH WERNER ,  HERBRECHTSMEIER PETER ,  HEUMULLER RUDOLF ,  THEIS JURGEN ,  WIENERS GERHARD

IPC: C08F20/02 ,  C08F16/14 ,  C08F20/10 ,  C08F20/22 ,  C08F214/26 ,  C08F216/14 ,  C08F220/22 ,  G02B1/04 ,  G02B6/00 ,  G09B1/04

Abstract: A thermoplastic molding compound consisting of units of 2,3-difluoroacrylic acid esters or their deuterated derivatives, or containing units of these esters, is distinguished by a high glass transition temperature and a high transparency. It is therefore suitable for the manufacture of beam waveguides for long transmission distances and high continuous use temperatures.

公开(公告)号：AU5697490A

公开(公告)日：1990-12-20

申请号：AU5697490

申请日：1990-06-12

Applicant: HOECHST AG

Inventor： COUTANDIN JOCHEN ,  GROH WERNER ,  HERBRECHTSMEIER PETER ,  THEIS JURGEN

IPC: G02B6/26 ,  B23K26/402 ,  B29C65/70 ,  G02B6/28 ,  G02B6/36 ,  B29C59/16 ,  G02B6/25 ,  B23C3/13

Abstract: Channels, in which polymer light waveguides can be inserted, can be milled in the surfaces of plastic sheets by means of an excimer laser. The free space between the light waveguides is filled with a transparent cast resin. … The channels, produced by means of the laser, are distinguished by high dimensional accuracy and low surface roughness. … …

公开(公告)号：AU5697390A

公开(公告)日：1990-12-20

申请号：AU5697390

申请日：1990-06-12

Applicant: HOECHST AG

Inventor： COUTANDIN JOCHEN ,  GROH WERNER ,  HERBRECHTSMEIER PETER ,  THEIS JURGEN

IPC: B29C33/00 ,  B29C33/38 ,  B29C65/02 ,  B29C65/04 ,  B29D11/00 ,  G02B6/28 ,  G02B6/255 ,  G02B6/245

Abstract: Mechanically robust star couplers of polymer optical waveguides having low insertion losses and small fluctuations between the individual output fibers are obtained if polymer optical waveguides are arranged in parallel in the middle region of an apparatus and fused with one another under pressure and with the supply of heat. The optical cladding of the polymer optical waveguides has been previously removed. The method is easy and cost-effective. The apparatus is composed of a lower part with a channel recessed therein and an upper part with a male die located therein, which male die corresponds in its shape to the shape of the channel.