公开(公告)号：DE3905765A1

公开(公告)日：1990-08-30

申请号：DE3905765

申请日：1989-02-24

Applicant: BASF AG

Inventor： HUEMMER WOLFGANG DR ,  DOBLER WALTER DR ,  LITTMANN DIETER DR

IPC: G03F7/004 ,  G03F7/027 ,  G03F7/031 ,  G03F7/032

Abstract: Photosensitive recording element containing at least one photopolymerisable recording layer (B) composed of… b1) at least one partially or virtually completely hydrolysed poly(vinylalcohol alkane carboxylate) and/or at least one partially or virtually completely hydrolysed vinyl alcohol alkane carboxylate/alkylene oxide graft copolymer as binder,… b2) at least one photopolymerisation initiator,… b3) at least one photopolymerisable olefinically unsaturated compound (monomer) which is compatible with the binder (b1), and/or photopolymerizable olefinically unsaturated radicals which are linked laterally and/or terminally to the binder (b1), and… b4) at least two auxiliaries, the photopolymerizable recording layer (B) containing, as auxiliaries (b4), at least the sensitometric regulator (b4) composed of… b4.1) at least one compound from the class comprising the isoalloxazines and/or the class comprising the alloxazines, and also… b4.2) the potassium salt of N-nitrosocyclohexyl hydroxylamine, N-nitrosodiphenylamine and/or the monomethyl ether of hydroquinone in an amount of 0,01 to 6% by weight of the photopolymerizable recording layer (B), the (b4.1):(b4.2) weight ratio being 1:2 to 1:1000.

公开(公告)号：DE4341528A1

公开(公告)日：1995-06-08

申请号：DE4341528

申请日：1993-12-06

Applicant: BASF AG

Inventor： WENDEROTH BERND DR ,  MUELLER HANS-JOACHIM ,  BERGER ALBIN DR ,  LITTMANN DIETER DR ,  KLIMESCH ROGER DR ,  OPPENLAENDER KNUT DR

IPC: C07D233/58 ,  C08F210/02 ,  C10L1/236 ,  C10L1/22

Abstract: Ethylene copolymers (I) useful as flow improver for petroleum middle distillate (PMD) consists of: (IA) (a) 50-94 wt.% ethylene (II), (b) 3-30 wt.% vinyl 2-6C monocarboxylate(s) (III), (c) 3-20 wt.% aminoalkyl acrylates of formula (IV) and (d) 0-10 wt.% comonomer(s) (V); or (IB) (a') 50-95.5 wt.% (II), (b') 4-30 wt.% (III), (c') 0.5-20 wt.% vinyl-imidazole(s) of formula (VI) or 0.5-20 wt.% aminoalkyl vinyl ether(s) of formula (VII) and (d') 0-10 wt.% (V): R1 = H or Me; R2-6, R9-11 = H or 1-6C alkyl; R7,R8 - 1-6C alkyl; A1 = 2-10C alkylene; A2 = 2-6C ethylene. The claims exclude (1A) in which (III) is vinyl acetate (IIIA) and Mn = 5000-5000. The claims cover the use of (I), esp. with Mw = 500-5000, as additive for PMD and PMD contg. effective amts. of (I).

公开(公告)号：DE59006676D1

公开(公告)日：1994-09-08

申请号：DE59006676

申请日：1990-08-16

Applicant: BASF AG

Inventor： LITTMANN DIETER DR

IPC: G03F7/033

公开(公告)号：DE4107378A1

公开(公告)日：1992-09-10

申请号：DE4107378

申请日：1991-03-08

Applicant: BASF AG

Inventor： LITTMANN DIETER DR ,  KOCH HORST DR ,  HOFFMANN WALTER

IPC: G03F1/00

Abstract: Masks consisting of (A) an optically transparent support film 10-500 micro-m thick, (B) an image mask layer 0.01-1 micro-m thick with optically transparent non-image regions and image regions of higher optical density obtd. by imagewise application of a 0.01 - 1 micro-m thick energy absorbing layer contg. a finely dispersed material of high optical density or an energy absorbing layer made of this, or by removing the non-image regions from this layer or by transferring the image regions to the support film (A), and (C) a 0.01 - 5 micro-m thick, non-tacky, optically transparent protective layer adhered strongly to the mask layer (B), consisting of a polymer which forms films with high tensile strength and 0.1-10 wt.% w.r.t. (C) of an optically transparent matting agent with a mean particle size of 0.1-10 micro-m. USE/ADVANTAGE - The copying masks can be used repeatedly in close contact with positive- or negative working photosensitive layers without deterioration of the mask by migration of low mol. components from the photosensitive material into the mask. This is an improvememnt over earlier systems in which a protective layer was applied over the photosensitive layer, which caused a redn. in resolution of the image during exposure. The masks are useful e.g. in the prodn. of printing plates, screen printing plates and photoresists e.g. for printed circuit

公开(公告)号：DE3904780A1

公开(公告)日：1990-08-23

申请号：DE3904780

申请日：1989-02-17

Applicant: BASF AG

Inventor： LITTMANN DIETER DR ,  KOCH HORST DR

IPC: G03F7/00 ,  G03F7/038 ,  G03F7/40

Abstract: Process for the production of a relief printing plate whose photopolymerised relief layer has a nontacky surface by (1) exposing, through an image, a photopolymerisable relief-forming recording layer which contains at least one polymeric binder containing acid groups, (2) washing out (developing) the unexposed, and therefore unphotopolymerised regions of the relief-forming recording layer exposed through an image with a developer solvent, and (3) posttreatment of the resultant photopolymerised relief layer with a basic posttreatment solution.

公开(公告)号：AT177764T

公开(公告)日：1999-04-15

申请号：AT95118128

申请日：1995-11-17

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  LITTMANN DIETER DR ,  KLIMESCH ROGER DR

IPC: C08F210/02 ,  C08F220/06

Abstract: In the prepn. of copolymers (I) of 94-99.5 mole-% C2H4 and 0.5-6 mole-% 3-6C alkenoic acid (II) by free radical high pressure polymerisation in a tubular reactor, the monomer mixt. is heated to a temp. not above 100 degrees C before adding the initiator and the max. polymerisation temp. does not exceed 260 degrees C. Also claimed are (I) per se; and adhesion promoters, fibres, films and mouldings contg. (I).

公开(公告)号：DE4333680A1

公开(公告)日：1995-04-06

申请号：DE4333680

申请日：1993-10-02

Applicant: BASF AG

Inventor： MUELLER HANS-JOACHIM DR ,  WENDEROTH BERND DR ,  BERGER ALBIN DR ,  LITTMANN DIETER DR ,  KLIMESCH ROGER DR ,  OPPENLAENDER KNUT DR

IPC: C08F210/02 ,  C10L1/236 ,  C08F218/04 ,  C08F220/34 ,  C10L1/22

Abstract: Copolymers based on ethylene which are suitable as flow improvers for petroleum middle distillates, comprising a) from 50 to 92 % by weight of ethylene, b) from 5 to 30 % by weight of one or more vinyl esters of C2-C6-monocarboxylic acids, c) from 3 to 20 % by weight of one or more aminoalkylene acrylates of the formula I in which R is hydrogen or methyl, the radicals R and R may be identical or different and are hydrogen or a C1-C6-alkyl radical, and A is a straight-chain or branched C2-C10-alkylene radical, and d) from 0 to 10 % by weight of one or more monomers which can be copolymerised with the monomers a) to c), excluding copolymers in which the monomer b) is vinyl acetate and which have a mean molecular weight (number average) of 5000 to 50000, the use of these copolymers as flow improvers for petroleum middle distillates, and petroleum distillates containing these copolymers.

公开(公告)号：DE58905931D1

公开(公告)日：1993-11-25

申请号：DE58905931

申请日：1989-03-08

Applicant: BASF AG

Inventor： HUEMMER WOLFGANG DR ,  BRONSTERT BERND DR ,  LITTMANN DIETER DR ,  ZUERGER MANFRED

IPC: G03F7/027 ,  C08F2/50 ,  G03F7/00 ,  G03F7/095 ,  G03F7/11

公开(公告)号：DE4130299A1

公开(公告)日：1993-03-18

申请号：DE4130299

申请日：1991-09-12

Applicant: BASF AG

Inventor： LITTMANN DIETER DR ,  EVERTZ KASPAR DR ,  SCHLUND RUEGER DR ,  MUEHLENBERND THOMAS DR ,  KONRAD RAINER DR ,  KLIMESCH ROGER DR ,  KERTH JUERGEN DR ,  SCHWEIER GUENTHER DR

IPC: C08F4/60 ,  C08F4/602 ,  C08F4/642 ,  C08F4/6592 ,  C08F4/68 ,  C08F10/00 ,  C08F10/02 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06

Abstract: A process is disclosed for producing homopolymers of propylene or copolymers of propylene with other olefins or their mixtures. Polymerisation is carried out under pressures from 100 to 3000 bars and at temperatures from 100 to 330 DEG C, using as catalyst a metallocene catalyst system.

公开(公告)号：DE3837324A1

公开(公告)日：1990-05-10

申请号：DE3837324

申请日：1988-11-03

Applicant: BASF AG

Inventor： LITTMANN DIETER DR ,  TELSER THOMAS DR ,  KOCH HORST DR ,  HUEMMER WOLFGANG DR ,  MEISTER MARTIN DR

IPC: G03F7/027 ,  C08F2/46 ,  C08F2/48 ,  C08F2/50 ,  G03F7/00 ,  G03F7/031 ,  G03F7/032

Abstract: The invention relates to a light-sensitive recording material which contains a mixture of polymers containing carboxyl groups and having lateral ethylenically unsaturated groups, one or more ethylenically unsaturated monomeric compounds, a photoinitiator and a beta -aminoalcohol. … It is suitable for the production of printing plates.