公开(公告)号：DE3234035A1

公开(公告)日：1984-03-15

申请号：DE3234035

申请日：1982-09-14

Applicant: BASF AG

Inventor： HAMBRECHT JUERGEN DR ,  REFFERT RUDI WILHELM ,  ECHTE ADOLF DR ,  SWOBODA JOHANN DR

IPC: C08G65/46 ,  C08G65/44

公开(公告)号：DE3135252A1

公开(公告)日：1983-03-17

申请号：DE3135252

申请日：1981-09-05

Applicant: BASF AG

Inventor： BRANDSTETTER FRANZ DIPL CHEM D ,  MC KEE GRAHAM EDMUND DIPL CHEM ,  OVERHOFF HEINZ-JUERGEN DIPL CH ,  PRIEBE EDMUND DIPL CHEM DR ,  SWOBODA JOHANN DR

IPC: C08L25/12 ,  C08L25/16 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06

公开(公告)号：DE2826925A1

公开(公告)日：1980-01-17

申请号：DE2826925

申请日：1978-06-20

Applicant: BASF AG

Inventor： SWOBODA JOHANN DR ,  LINDENSCHMIDT GERHARD DIPL CHE ,  BERNHARD CLAUS DIPL CHEM DR

IPC: C08L51/00 ,  C08L51/04

Abstract: Mixtures which essentially consist of a graft copolymer (A), a graft copolymer (B) and a hard component (C), the latter consisting of copolymers of stryrene and/or alpha -methylstyrene with acrylonitrile. The graft copolymers (A) and (B) are each based on a crosslinked acrylic ester rubber onto which is grafted a mixture of styrene and acrylonitirle. They differ only slightly in chemical composition, but differ substantially in the particle size of the acrylic ester base used for grafting. The weight ratio of the grafting bases can be from 90:10 to 35:65, and the proportion of the two grafting bases together, based on the total mixture, is from about 10 to 35 percent by weight. Mixtures of the above 3 components are weathering-resistant, exhibit a high impact strength, and are easy to color. The use of such mixtures by conventional thermoplastic processing methods, eg. extrusion or injection molding, gives, especially after the material has been colored, vitrually no difference in hue in the vicinity of a gate or of a weld line, so that a great variety of moldings for daily use or for leisure purposes can be produced.

公开(公告)号：DE4437860A1

公开(公告)日：1996-04-25

申请号：DE4437860

申请日：1994-10-22

Applicant: BASF AG

Inventor： BAUMGARTL HORST DR ,  DIETZEN FRANZ-JOSEF DR ,  SWOBODA JOHANN DR

IPC: B29C44/34 ,  B29C44/50 ,  C08J9/12 ,  B29C67/20 ,  B29C47/50

公开(公告)号：DE4341973A1

公开(公告)日：1995-06-14

申请号：DE4341973

申请日：1993-12-09

Applicant: BASF AG

Inventor： SWOBODA JOHANN DR ,  VOLKERT OTTO DR

IPC: C08G18/40 ,  C08G18/76 ,  C08G18/80 ,  C08G18/81 ,  C08G101/00 ,  C08G18/65 ,  B29C67/20

Abstract: The invention relates to a process for the preparation of compact or cellular polyurethanes by reacting relatively high-molecular-weight polyhydroxyl compounds and optionally chain extenders and/or crosslinking agents with a liquid polyisocyanate composition containing urethane groups, obtainable from mixtures of diphenylmethane diisocyanates and polyphenyl-polymethylene polyisocyanates and linear, branched or cyclic, saturated or olefinically unsaturated, low-molecular-weight monoalcohols, to the liquid polyisocyanate compositions containing urethane groups which can be used for this purpose, and to the use thereof for the preparation of preferably highly crosslinked polyurethanes, in particular rigid PU (moulded) foams.

公开(公告)号：DE4238046A1

公开(公告)日：1994-05-19

申请号：DE4238046

申请日：1992-11-11

Applicant: BASF AG

Inventor： LEHRICH FRIEDHELM DR ,  POHL SIEGMUND ,  BRUCHMANN BERND DR ,  TESCH HELMUT DR ,  MINGES ROLAND DR ,  SWOBODA JOHANN DR ,  GENZ MANFRED DR ,  SCHOLZ GUENTER DR ,  STREU JOACHIM DR

IPC: C07C265/10 ,  C07C265/12 ,  C07C267/00 ,  C08G18/00 ,  C08G18/02 ,  C08G18/71 ,  C08K5/29 ,  C08L75/04

Abstract: The invention relates to novel 4,4'-disubstituted bis(2,6-diisopropylphenyl)carbodiimides of the formula (I) in which R is a 1-methyl-1-phenylethyl, phenoxy or tert-butyl radical, to a process for their preparation and to their use as stabilisers with respect to the hydrolytic degradation of ester group-containing products of addition and condensation polymerisation, and to the novel compounds which can be used to prepare them, namely 4-(1-methyl-1-phenylethyl)-2,6-diisopropylphenyl, 4-phenoxy-2,6-diisopropylphenyl and 4-tert-butyl-2,6-diisopropylphenyl isocyanates.

公开(公告)号：DE3484749D1

公开(公告)日：1991-08-01

申请号：DE3484749

申请日：1984-12-18

Applicant: BASF AG

Inventor： MUENCH VOLKER DR ,  HAMBRECHT JUERGEN DR ,  ECHTE ADOLF DR ,  ILLERS KARL HEINZ DR ,  SWOBODA JOHANN DR

IPC: C08K5/00 ,  C08L101/00

Abstract: A halogen-free flameproofed thermoplastic molding material consists of a halogen-free thermoplastic resin (A) and one or more further halogen-free components. The thermoplastic resin (A) is present in an amount of from 30 to 90% by weight, based on the molding material. The latter contains, as further components, from 1 to 50% by weight of a phenol/aldehyde resin (B), from 1 to 50% by weight of a nitrogen-containing organic compound (C) and from 3 to 50% by weight of a phosphorus-containing organic compound (D), the percentages in each case being based on the molding material. The molding material is used for the production of flameproofed moldings.

公开(公告)号：DE3578428D1

公开(公告)日：1990-08-02

申请号：DE3578428

申请日：1985-11-07

Applicant: BASF AG

Inventor： BRANDT HERMANN DR ,  FISCHER HERMANN DR ,  DREHER HERMANN DR ,  HEIL EDUARD ,  HAMBRECHT JUERGEN DR ,  NAARMANN HERBERT DR ,  ECHTE ADOLF DR ,  GAUSEPOHL HERMANN DR ,  SIEBEL PETER DR ,  SWOBODA JOHANN DR ,  SCHWOEBEL GERD ,  NIKLES ALBERT

IPC: B01J10/00 ,  B01J19/18 ,  C08G65/44

Abstract: Polyphenylene ethers are prepared from monohydric phenols, which possess alkyl substituents in the two ortho-positions and, if desired, in the meta-position, but not in the para-position, by an oxidative coupling reaction with oxygen at from 15 DEG to 50 DEG C. and under from 1 to 10 bar in the presence of a catalyst complex, of a solvent and, if required, of an activator, by a method in which the conversion of the phenols is carried out in two more reaction zones, in which some or all of the solvent, the catalyst complex and the phenols and, where relevant, the activator is initially taken and is circulated by means of a conveying unit, and about 60-100% of the stoichiometric amount of oxygen required for the oxidative coupling is introduced into the first reaction zone and from 0 to about 40% of the said stoichiometric amount is introduced into the second reaction zone.

公开(公告)号：DE3560287D1

公开(公告)日：1987-07-30

申请号：DE3560287

申请日：1985-04-01

Applicant: BASF AG

Inventor： MUENCH VOLKER DR ,  HAMBRECHT JUERGEN DR ,  HIMMELE WALTER DR ,  ECHTE ADOLF DR ,  SWOBODA JOHANN DR

IPC: C08G65/44 ,  C08L71/04

公开(公告)号：DE3462510D1

公开(公告)日：1987-04-09

申请号：DE3462510

申请日：1984-07-03

Applicant: BASF AG

Inventor： BERGER ROSEMARIE ,  DREHER HERMANN DR ,  HAMBRECHT JUERGEN DR ,  HEIL EDUARD ,  REFFERT RUDI WILHELM ,  SWOBODA JOHANN DR ,  ECHTE ADOLF DR ,  SIEBEL PETER DR

IPC: C08G65/46

Abstract: The catalyst is removed in the preparation of high molecular weight polyphenylene ethers from monohydric phenols, which are alkyl-substituted at the two ortho-positions but not at the para-position and may or may not be alkyl-substituted at the meta-position, by an oxidative coupling reaction with oxygen at from 15 DEG to 50 DEG C. in the presence of a catalyst complex obtained from a copper salt and an organic amine, in the presence of from 1 to 20 parts by weight of a solvent per part by weight of the monomeric phenol, and in the presence or absence of an activator, and removal of the metal component of the catalyst from the polyphenylene ether solution with a complex-forming or chelate-forming compound in aqueous solution, in the presence or absence of reducing and stabilizing substances and assistants for accelerating the interphase reactions and for phase separation, by a method in which the continuous removal of the copper catalyst is carried out in one or more mixer-settler stages at a phase volume ratio of the organic phase to the aqueous phase of from 1:0.1 to 1:1.0, preferably from 1:0.4 to 1:0.6.