公开(公告)号：NO920674L

公开(公告)日：1992-08-24

申请号：NO920674

申请日：1992-02-20

Applicant: BASF AG

Inventor： SCHWARTZ MANFRED ,  BAECHER REINHARD ,  DOTZAUER BERNHARD ,  WISTUBA ECKEHARDT ,  BOETTCHER ANDREAS

IPC: C08K5/13 ,  C04B41/46 ,  C04B41/48 ,  C04B41/62 ,  C04B41/63 ,  C08K5/00 ,  C08K5/10 ,  C08K5/109 ,  C08L25/00 ,  C08L25/14 ,  C08L33/04 ,  C08L33/06 ,  C09D7/12 ,  C09D133/04 ,  C09D133/06

Abstract: The invention relates to an aqueous polymer dispersion which may optionally contain mineral additives and/or pigments and which essentially consists of a mixture of A) a 20% to 65% w/w aqueous dispersion of a copolymer of (a) an olefinically unsaturated compound containing one or more carboxyl groups and/or amide groups, and (b) at least two monomers selected from the group consisting of acrylates and methacrylates and vinylaromatic compounds, and B) from 0.1 to 5% w/w, based on the weight of the copolymer contained in component (A), of at least one aromatic ketone of the general formula (I) aryl radical and R1 stands for an aryl radical containing from 1 to 3 radicals of the formula -O-C(O)-O- attached to one or more oxaalkylene groups. Such polymer dispersions are suitable for the manufacture of paints and coating systems.

公开(公告)号：ES2021665B3

公开(公告)日：1991-11-16

申请号：ES87114096

申请日：1987-09-26

Applicant: BASF AG

Inventor： BOETTCHER ANDREAS ,  BRONSTERT BERND ,  HOFFMANN GERHARD

IPC: C08F2/48 ,  C08F2/50 ,  G03F7/027 ,  G03F7/029 ,  G03F7/032

公开(公告)号：AU604932B2

公开(公告)日：1991-01-03

申请号：AU1861288

申请日：1988-07-01

Applicant: BASF AG

Inventor： SCHWALM REINHOLD ,  BOETTCHER ANDREAS ,  BINDER HORST

IPC: G03C1/72 ,  G03F7/004 ,  G03F7/039 ,  G03F7/075 ,  C08L61/08 ,  C08L61/10 ,  C08L25/18 ,  C08L33/10 ,  C08K5/36 ,  C08K5/49 ,  C08K5/54 ,  C08K5/55 ,  C08K5/59 ,  C08K5/00 ,  G03C1/73 ,  G03F7/30

Abstract: A radiation-sensitive mixture consists of a polymeric binder which is insoluble in water but soluble in aqueous alkaline solutions, and of an organic compound whose solubility in an aqueous alkaline developer is increased by the action of an acid and which contains both one or more acid-cleavable groups and a group which forms a strong acid under the action of radiation. The radiation-sensitive mixture is suitable for use in photosensitive coating materials for the production of relief patterns and relief images.

公开(公告)号：AU4733789A

公开(公告)日：1990-07-05

申请号：AU4733789

申请日：1989-12-29

Applicant: BASF AG

Inventor： REHMER GERD ,  BOETTCHER ANDREAS ,  AUCHTER GERHARD

IPC: C08F212/08 ,  C08F2/46 ,  C08F20/10 ,  C08F20/26 ,  C08F20/52 ,  C08F212/00 ,  C08F220/18 ,  C08F220/30 ,  C08F220/58 ,  C08F290/00 ,  C08F290/06 ,  C08F299/00 ,  C09D4/00 ,  C09D133/04 ,  C09J4/00 ,  C09J133/04 ,  C08F220/16 ,  C09J3/16 ,  C09D3/80 ,  C08L33/10

Abstract: UV-crosslinkable materials based on (meth)acrylate copolymers contain copolymerized monomers of the general formula I (I) where R is a certain alkyl radical, an aryl radical or a radical R1 and R1 is a radical where R2 to R6 are each H, alkyl, a non-ortho OH group, OCH3, OC2H3, SH, SCH3, Cl, F, CN, COOH, COO(C1-C3-alkyl), CF3, N(CH3)2, N(C2H5)2, N(CH3)C6H5, +N(CH3)3X- or +N(CH3)XX-, where X- is an acid anion, and one or more of the radicals R2 to R6 are each a radical or or where Sp is one of the spacer groups of the following type and R', R'' and R''' are each H or a certain hydrocarbon, and where the radicals X may be identical or different and are each a divalent, alkylene radical, a cycloalkylene radical or phenylene radical, which are bonded directly to one another and/or are bonded to one another by identical or different groups Y, and Y is a divalent radical from the group consisting of and k and m are each from 1 to 10 and 1 and n are each from 0 to 25.

公开(公告)号：CA2000736A1

公开(公告)日：1990-04-30

申请号：CA2000736

申请日：1989-10-16

Applicant: BASF AG

Inventor： REHMER GERD ,  BOETTCHER ANDREAS ,  PFOEHLER PETER ,  AYDIN ORAL ,  NESTLER GERHARD

IPC: C08J5/18 ,  C08F220/18 ,  C08L23/00 ,  C08L33/04 ,  C08L33/06 ,  C09J133/06 ,  C08F2/26 ,  C09J161/00 ,  C09J131/02

Abstract: O.Z. 0050/40301 Materials which are crosslinkable by ultraviolet radiation under atmospheric oxygen and are based on (meth)acrylate copolymers having a X value of from 10 to 100 are obtained by free radical polymerization, in the presence or absence of a solvent, of a) from 5 to 97.4% by weight of isoamyl acrylate and/or isoamyl methacrylate, b) from 0 to 89.9% by weight of (meth)acrylates whose homopolymers have a glass transition temperature below -30.degree.C, c) from 2.5 to 30% by weight of .alpha.,.beta.-monoolefinically unsaturated compounds whose homopolymers have a glass transition temperature above -30.degree.C, d) from 0 to 10% by weight of monoolefinically unsaturated acids and/or their anhydrides and e) from 0 to 20% by weight of further olefinically unsaturated monomers having one or more of the following functional groups: hydroxyl, amide, epoxide, ether, ester, urethane, urea, primary, secondary and tertiary amine and ether groups, and f) from 0.1 to 5% by weight of a copolymerizable benzophenone derivative or acetophenone derivative, the sum of the percentages by weight X (= a + b + c + d + f) being 100 in each case.

公开(公告)号：FI901245A0

公开(公告)日：1990-03-13

申请号：FI901245

申请日：1990-03-13

Applicant: BASF AG

Inventor： TELSER THOMAS ,  BOETTCHER ANDREAS ,  SEITZ FRIEDRICH

IPC: G03F7/027 ,  G03F7/031 ,  G03F7/20 ,  G03F

公开(公告)号：FI895024A0

公开(公告)日：1989-10-23

申请号：FI895024

申请日：1989-10-23

Applicant: BASF AG

Inventor： REHMER GERD ,  BOETTCHER ANDREAS ,  PFOEHLER PETER ,  AYDIN ORAL ,  NESTLER GERHARD

IPC: C08J5/18 ,  C08F220/18 ,  C08L23/00 ,  C08L33/04 ,  C08L33/06 ,  C09J133/06 ,  C08L

Abstract: Compositions which can be crosslinked under an atmospheric oxygen atmosphere by means of ultraviolet irradiation and are based on (meth)acrylate copolymers having a K value of from 10 to 100, obtained by free-radical polymerisation in solid phase or solution of a) 5 to 97.4% by weight of i-amyl acrylate and/or i-amyl methacrylate and b) 0 to 89.9% by weight of (meth)acrylates whose hompolymers have a glass transition temperature of below -30 DEG C, c) 2.5 to 30% by weight of alpha , beta -monoolefinically unsaturated compounds whose homopolymers have a glass transition temperature of above - 30 DEG C, d) 0 to 10% by weight of monoolefinically unsaturated acids and/or anhydrides thereof, e) 0 to 20% by weight of further olefinically unsaturated monomers containing at least one of the following functional groups: hydroxyl, amide, epoxide, ether, ester, urethane, urea, primary, secondary or tertiary amine and ether, and f) 0.1 to 5% by weight of a copolymerisable benzophenone or acetophenone derivative, the sum of the percentages by weight x = a + b + c + d + f in each case being 100.

公开(公告)号：DE59904258D1

公开(公告)日：2003-03-20

申请号：DE59904258

申请日：1999-07-09

Applicant: BASF AG

Inventor： BOETTCHER ANDREAS ,  GURSKI HANS

IPC: C07F9/655

公开(公告)号：AU5839101A

公开(公告)日：2001-11-20

申请号：AU5839101

申请日：2001-05-03

Applicant: BASF AG

Inventor： BOETTCHER ANDREAS ,  BURST WOLFRAM

IPC: A61K31/375 ,  A61P3/02 ,  C07B61/00 ,  C07D307/62

Abstract: The invention relates to a process for the preparation of L-ascorbic acid, in which free 2-keto-L-gulonic acid or C3-C10-alkyl 2-keto-L-gulonate is lactonized under acidic conditions in the presence of a water-miscible solvent and where this solvent in situ forms a solvent in which the ascorbic acid formed is poorly soluble.

公开(公告)号：DE10022518A1

公开(公告)日：2001-11-15

申请号：DE10022518

申请日：2000-05-10

Applicant: BASF AG

Inventor： BOETTCHER ANDREAS ,  BURST WOLFRAM

IPC: A61K31/375 ,  A61P3/02 ,  C07B61/00 ,  C07D307/62

Abstract: Preparation of L-ascorbic acids comprises reacting 2-keto-L-gulonic acids or a melt of 2-keto-L-gulonic acid 3-6C alkyl esters under acid catalysis using a water-miscible solvent(s) in with the product is poorly soluble.