公开(公告)号：CA1075066A

公开(公告)日：1980-04-08

申请号：CA263944

申请日：1976-10-22

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL ,  BEUTEL RAINER

IPC: G03C1/72 ,  G03F7/004 ,  G03F7/022 ,  G03C1/52

Abstract: This invention relates to an improvement in a light-sensitive copying material comprising a carrier and a light-sensitive copying layer which contains, as the light-sensitive compound, an o-quinone diazide sulfonic acid ester or an o-quinone diazide sulfonic acid amide, the improvement being that the layer also contains a compound with an aromatic or aliphatic hydroxy group which is capable of forming chelate compounds.

公开(公告)号：NO139458C

公开(公告)日：1979-03-14

申请号：NO742238

申请日：1974-06-19

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL ,  BEUTEL RAINER

IPC: C08L27/00 ,  C08L1/00 ,  C08L33/00 ,  C08L33/02 ,  C08L61/00 ,  C08L61/04 ,  G03C1/72 ,  G03F7/004 ,  G03F7/022 ,  G03F7/105 ,  G03C1/54 ,  G03F7/08

公开(公告)号：NO139458B

公开(公告)日：1978-12-04

申请号：NO742238

申请日：1974-06-19

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL ,  BEUTEL RAINER

IPC: C08L27/00 ,  C08L1/00 ,  C08L33/00 ,  C08L33/02 ,  C08L61/00 ,  C08L61/04 ,  G03C1/72 ,  G03F7/004 ,  G03F7/022 ,  G03F7/105 ,  G03C1/54 ,  G03F7/08

公开(公告)号：AU1896176A

公开(公告)日：1978-05-04

申请号：AU1896176

申请日：1976-10-25

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL ,  BEUTEL RAINER

IPC: G03C1/72 ,  G03F7/004 ,  G03F7/022 ,  G03C1/56 ,  G03F7/08

Abstract: This invention relates to an improvement in a light-sensitive copying material comprising a carrier and a light-sensitive copying layer which contains, as the light-sensitive compound, an o-quinone diazide sulfonic acid ester or an o-quinone diazide sulfonic acid amide, the improvement being that the layer also contains a compound with an aromatic or aliphatic hydroxy group which is capable of forming chelate compounds.

公开(公告)号：BR7607084A

公开(公告)日：1977-09-13

申请号：BR7607084

申请日：1976-10-22

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL ,  BEUTEL RAINER

IPC: G03C1/72 ,  G03F7/004 ,  G03F7/022 ,  G03C1/94

Abstract: This invention relates to an improvement in a light-sensitive copying material comprising a carrier and a light-sensitive copying layer which contains, as the light-sensitive compound, an o-quinone diazide sulfonic acid ester or an o-quinone diazide sulfonic acid amide, the improvement being that the layer also contains a compound with an aromatic or aliphatic hydroxy group which is capable of forming chelate compounds.

公开(公告)号：SE7407871L

公开(公告)日：1974-12-23

申请号：SE7407871

申请日：1974-06-14

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL ,  BEUTEL RAINER

IPC: C08L27/00 ,  C08L1/00 ,  C08L33/00 ,  C08L33/02 ,  C08L61/00 ,  C08L61/04 ,  G03C1/72 ,  G03F7/004 ,  G03F7/022 ,  G03F7/105

公开(公告)号：SE7407871A

公开(公告)日：1974-12-23

申请号：SE7407871

申请日：1974-06-14

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL ,  BEUTEL RAINER

IPC: C08L27/00 ,  C08L1/00 ,  C08L33/00 ,  C08L33/02 ,  C08L61/00 ,  C08L61/04 ,  G03C1/72 ,  G03F7/004 ,  G03F7/022 ,  G03F7/105

CPC classification number: G03F7/022 ,  G03F7/105

公开(公告)号：CA1254788A

公开(公告)日：1989-05-30

申请号：CA440678

申请日：1983-11-08

Applicant: HOECHST AG

Inventor： HSIEH SHANE ,  STAHLHOFEN PAUL

IPC: G03C1/72 ,  G03F7/00 ,  G03F7/022 ,  G03F7/26 ,  G03F7/40 ,  G03F7/08

Abstract: A light-sensitive composition for the preparation of printing plates is described, which contains a water-insoluble binder which is soluble in aqueous-alkaline solutions; a light-sensitive o- or p- quinone diazide, a diazonium salt polycondensation product or a mixture of a) a compound which eliminates an acid on exposure to light and b) a compound having at least one C-0-C group which can be split by acid; and a thermo-crosslinking compound which is a cyclical acid amide of the general formula: wherein R denotes a hydrogen atom or an alkyl group. The printing plates can be baked at lower temperatures than plates without a crosslinking agent, but nevertheless have a long shelf life.

公开(公告)号：CA1254787A

公开(公告)日：1989-05-30

申请号：CA442945

申请日：1983-12-09

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL

IPC: G03C1/00 ,  G03F7/004 ,  G03F7/022 ,  G03F7/023 ,  G03F7/032 ,  G03F7/00

Abstract: Described is a light-sensitive mixture, the solubility of which in an aqueous-alkaline solution changes upon exposure to actinic radiation, containing at least one light-sensitive compound and a binder material comprising a halogenated polyvinyl phenol which is insoluble in water, but soluble in aqueousalkaline solutions. The mixture is preferably used for the Preparation of lithographic printing plates and leaves virtually no oleophilic remainders on the image-free areas of the support surface when the developed lithographic printing form is heated to temperatures above 200.degree.C.

公开(公告)号：CA1242920A

公开(公告)日：1988-10-11

申请号：CA457992

申请日：1984-07-03

Applicant: HOECHST AG

Inventor： STAHLHOFEN PAUL ,  MACK GERHARD

IPC: G03F7/038 ,  G03C1/52 ,  G03C5/00 ,  G03F7/004 ,  G03F7/022 ,  G03F7/20 ,  G03F7/26 ,  G03F7/38 ,  H01L21/027 ,  G03C5/34

Abstract: A process for producing negative relief copies is disclosed in which a light-sensitive material, comprising (1) a binder which is insoluble in water and soluble in aqueous-alkaline solutions and (2) a light-sensitive ester or amide of a 1,2-benzoquinone-2-diazide-4-sulfonic acid, a 1,2-benzoquinone-2-diazide-4-carboxylic acid, a 1,2-naphthoquinone-2-diazide-4-sulfonic acid, or a 1,2-naphthoquinone-2-diazide-4-carboxylic acid, is imagewise exposed, thereafter heated and, after cooling, exposed again without an original, and subsequently developed by means of an aqueous-alkaline developer. The disclosed process permits the production of negative copies with the aid of a material which yields positive copies when it is processed in a conventional manner.