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公开(公告)号：DE3035642A1
公开(公告)日：1982-05-06
申请号：DE3035642
申请日：1980-09-20
Applicant: BASF AG
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公开(公告)号：DE2610068A1
公开(公告)日：1977-09-29
申请号：DE2610068
申请日：1976-03-11
Applicant: BASF AG
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公开(公告)号：DE3049186A1
公开(公告)日：1982-07-29
申请号：DE3049186
申请日：1980-12-24
Applicant: BASF AG
Inventor： POHRT JUERGEN , SCHMITT BURGHARD DIPL CHEM DR , GERBERDING KARL DIPL CHEM DR , MITTNACHT HANS DIPL CHEM DR
Abstract: Biaxial drawing is used in the prodn. of melt-extruded, drawn foils of styrene-butadiene block copolymers, prepd. by anionic polymerisation and contg. by wt. 60-90% vinyl aromatic monomers and 40-10% conjugated diene. The compsn. consists of (a) mixts. of linear block copolymers having structure (I) and (II) (where A1, A2 and A3 are nonelastomeric polymer segments of at least 1 monovinyl aromatic monomer and B are elastomeric polymer segments of at least 1 conjugated diene; hyphens denote sharp- and arrows denote blurred transitions between the polymer segments) or of branched block copolymers having structures (b) (A1-A2-B)n-X-(B-A2)m (where n and m are variable nos., provided the sum of m plus n is at least 3 and m is equal to or higher than n; and X is a polyfunctional coupling agent via which the branch-forming copolymer chains are bonded chemically) or (c) (III) or (d) (IV) or mixts. of the block copolymers (a) to (d) with one another, opt. with polystyrene or impact-resistant-modified polystyrene or polyphenylene oxides. The foils are used esp. for packing foods to be stored at low temps. Biaxially drawn foils have improved mechanical properties at low and room temp. The foils are glossy, transparent even when blended with up to 40% polystyrene and resist tear.
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公开(公告)号：DE2940861A1
公开(公告)日：1981-04-23
申请号：DE2940861
申请日：1979-10-09
Applicant: BASF AG
Inventor： GERBERDING KARL DIPL CHEM DR
IPC: C08F297/04
Abstract: A process for the preparation of a mixture of linear three-block copolymers which contain from 70 to 80% by weight of styrene units and from 20 to 30% by weight of elastomeric polymer segments based on a conjugated diene, in a total of three stages, specific conditions in respect of the initiator and of the monomers to be polymerized being essential in the individual stages in order to ensure the polymodal structure of the three-block copolymers. After complete reaction of the monomers, the mixture of the living polymers is treated with proton-active compounds, and the mixture of the block copolymers is isolated by removing the solvent. The compositions obtained by the novel process are transparent and clear and have good mechanical properties. They are furthermore readily processable by the methods conventionally used for thermoplastics. The compositions are particularly suitable for the production of moldings and of packaging materials.
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公开(公告)号：DE2931736A1
公开(公告)日：1981-02-26
申请号：DE2931736
申请日：1979-08-04
Applicant: BASF AG
Inventor： GERBERDING KARL DIPL CHEM DR , FAHRBACH GERHARD DIPL CHEM DR , HOEVEMANN FRIEDRICH DIPL CHEM
IPC: C08G81/02 , C08F8/04 , C08F8/00 , C08F297/04
Abstract: The polymers (I) are products obtd. by hydrogenating a star- shaped copolymer (II) comprising 3 or 4 linear copolymer chains attached to a central unit X (e.g. Si or Ge). Each linear chain is a statistical copolymer of at least one 4-5C conjugated diene (III) and at least one monovinyl aromatic cpd. (IV). The improvement comprises grafting additional (III) onto the ends of (IV)-terminal chains prior to coupling with X, so that the chains are linked to X via (III). (I) are useful as VI improvers for lubricating oils. The improvement provides more complete coupling of the chains with X and reduces the hydrogenation time.
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Patent Agency Ranking
公开(公告)号：DE3123716A1
公开(公告)日：1982-12-30
申请号：DE3123716
申请日：1981-06-15
Applicant: BASF AG
Inventor： HAMBRECHT JUERGEN DIPL CHEM DR , BRANDSTETTER FRANZ DIPL CHEM D , ECHTE ADOLF DIPL CHEM DR , GERBERDING KARL DIPL CHEM DR , HECKMANN WALTER DIPL CHEM DR
Abstract: Thermoplastic molding materials based on styrene polymers modified to be impact resistant with EPDM rubbers and polyphenylene ethers wherein the particles of the flexible components of the impact resistant styrene polymer have an average particle diameter range of 0.3 to 0.7 microns.
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公开(公告)号：DE3047293A1
公开(公告)日：1982-07-29
申请号：DE3047293
申请日：1980-12-16
Applicant: BASF AG
IPC: C08F2/06 , C08F279/02 , C08F279/04 , C08F287/00 , C08F291/02
Abstract: A process for making ABS polymer particles comprising continuous polymerization of a mixture of at least one of each of (a) an aromatic vinyl monomer, and (b) an ethylenically unsaturated monomer in a weight ratio of (a):(b) of 90:10 to 10:90 in the presence of at least one of each of (c) a rubber-like polymer in an amount of 3 to 35 percent by weight relative to the total weight of the monomers (a) and (b), (d) a solvent, (e) a radical initiator and (f) an optional chain transfer agent. The process is carried out at temperatures between 80 DEG C. to 180 DEG C. in two or more reaction zones while the reaction mixture is stirred and while the monomers and solvents are removed in a degassing zone. The rubber-like polymer (c) has a solution viscosity of less than 80 mPa.s and a ratio of the solution viscosity of (c) to a percent of solvent expressed by 100[(d)/(a+b+c+d)] equal to or less than 2.5 mPa.s/percent of solvent.
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公开(公告)号：DE3032832A1
公开(公告)日：1982-04-22
申请号：DE3032832
申请日：1980-08-30
Applicant: BASF AG
Inventor： HEINZ GERHARD DIPL CHEM DR , SCHMITT BURGHARD DIPL CHEM DR , DORN INGO H DIPL ING DR , GAUSEPOHL HERMANN DIPL CHEM DR , GERBERDING KARL DIPL CHEM DR , JUNG RUDOLF H DIPL CHEM DR , MITTNACHT HANS DIPL CHEM DR , POHRT JUERGEN , WITTMER PAUL DIPL CHEM DR
IPC: C08F297/04 , C08G81/02
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公开(公告)号：DE3047303A1
公开(公告)日：1982-07-29
申请号：DE3047303
申请日：1980-12-16
Applicant: BASF AG
Inventor： ECHTE ADOLF DIPL CHEM DR , GAUSEPOHL HERMANN DIPL CHEM DR , HAMBRECHT JUERGEN DIPL CHEM DR , GERBERDING KARL DIPL CHEM DR
IPC: C08F2/02 , C08F2/06 , C08F212/06 , C08F279/02 , C08F291/02 , C08F255/00 , C08F265/04
Abstract: A process for the continuous preparation of rubber-modified polymers of vinyl-aromatics, wherein a mixture which contains a monomeric aromatic vinyl compound and from 3 to 30% by weight, based on the monomer, of an elastomeric polymer, with or without a solvent, is polymerized, in the presence of a free radical initiator and in the presence or absence of a mercaptan as chain transfer agent, at from 80 DEG to 180 DEG C., with stirring, in a cascade of two or more isothermally operated reaction zones and of one or more additional reaction zones which can be operated isothermally or with a rising temperature profile in such a way that the residence time of the reactants in the first reaction zone is
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公开(公告)号：DE3039201A1
公开(公告)日：1982-05-13
申请号：DE3039201
申请日：1980-10-17
Applicant: BASF AG
Inventor： BRANDSTETTER FRANZ DIPL CHEM D , ECHTE ADOLF DIPL CHEM DR , GERBERDING KARL DIPL CHEM DR , HAAF FRANZ DIPL CHEM DR , MITTNACHT HANS DIPL CHEM DR , NAARMANN HERBERT DIPL CHEM DR
Abstract: Moulding compsns. consists of (A) 10-20 pts. wt. polyphenylene ether and (B) 90-80 pts. wt. impact resistant-modified, tension crack-resistant polystyrene. The sum of (A) and (B) is 100 pts. wt. Standard (B) are used, contg. esp. 2-15 wt.% elastomer. Swelling index of the soft component after monovinyl aromatic cpd. polymerisation is over 9.5. (A) are polyphenylene oxides di-substd. in o-position, in which the ether-O of one unit is bonded to the benzene ring of the adjoining unit, esp. poly(2,6-dimethyl-1,4- phenylene)ether having limiting viscosity 0.45-0.65 dl/g, measured in CHCl3 at 30 deg.C. In addn. to good tension crack-resistance, the compsns. have good adhesion to polyurethane.
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