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1.发明专利
公开(公告)号：DE2457726A1
公开(公告)日：1976-06-16
申请号：DE2457726
申请日：1974-12-06
Applicant: BASF AG
Inventor： FALKENSTEIN GEORG DIPL CHEM DR , STEIN DIETER DIPL CHEM DR , HAAF FRANZ DIPL CHEM DR , HEINZ GERHARD DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR
Abstract: (Cellular)polyurethanes are prepd. from a mixt. of A) >=1 polyisocyanate, B) >=1 polyhydroxy cpd. of mol. wt. 500-7,000 chosen from polyether-and polyester-polyols and opt. D) other conventional additives, the novelty being that a polymer (C) is included in the mixt.; C) is the reaction prodt. of a polymer contg. >=1 gp. capable of (trans)esterification and a polyhydroxy cpd. chosen from polyester- or polyether-polyols of mol. wt. 200-7,000 with formation of at least a partial ester like bond. Polymers contg. covalently bonded polyhydroxy cpds., useful in polyurethane chemistry are easily obtd. cf. prior art where either a) polyhydroxy cpds. and polyisocyanates were reacted or b) in situ free radical graft polymers contg. polyetherpolyols grafted over C-C bonds were used. Physical props. e.g., load capacity and low temp. flexibility are also improved. As flexible or rigid, foams, elastomers or coatings. The foams may be used as shoe soles, or in the automobile industry.
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公开(公告)号：DE2828517A1
公开(公告)日：1980-01-17
申请号：DE2828517
申请日：1978-06-29
Applicant: BASF AG
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公开(公告)号：DE2613352A1
公开(公告)日：1977-10-06
申请号：DE2613352
申请日：1976-03-29
Applicant: BASF AG
Inventor： WALTER MANFRED DIPL CHEM DR , STEIN DIETER DIPL CHEM DR , FAHRBACH GERHARD DIPL CHEM DR , JUNG RUDOLF H DIPL CHEM DR , ECHTE ADOLF DIPL CHEM DR
IPC: C08F291/00 , C08F279/02 , C08F291/02
Abstract: A process for the manufacture of high impact and translucent polystyrene, in which, in a first stage, styrene is prepolymerized in mass or in solution in the presence of a rubber, and the polymerization is then completed in mass, in solution or in aqueous suspension. The prepolymerization is taken to a stage where the amount of styrene converted is from 3 to 10 times the amount of the elastomer constituent of the rubber, and at this conversion the disperse soft-component phase formed should have a mean particle size of less than 1 mu m and should contain from 35 to 65% by weight of free or chemically bonded polystyrene segments. The translucent styrene polymers of high impact strength may be used for packaging purposes.
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公开(公告)号：DE2457725A1
公开(公告)日：1976-06-16
申请号：DE2457725
申请日：1974-12-06
Applicant: BASF AG
Inventor： GEHM ROBERT DIPL CHEM DR , FALKENSTEIN GEORG DIPL CHEM DR , STEIN DIETER DIPL CHEM DR , HAAF FRANZ DIPL CHEM DR , HEINZ GERHARD DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR
Abstract: Prepn. of (cellular) polyurethanes is claimed from a mixt. of a) >=1 polyisocyanate, B) >=1 polyhydroxy cpd. of mol. wt. 500-7,000 chosen from polyether- and polyesterpolyols and opt. D) other conventional additives, the novelty being that a polymer (C) is included in the mixt.; C) is an alkoxylated polymer prepd. by reacting 0.1-120 mol. ethylene oxide per mol. of gp. capable of being alkoxylated in (C). Polymers contg. covalently bonded polyhydroxy cpds. are easily obtd. cf. prior art in which either (a) polyhydroxy cpd. and polyisocyanates were reacted or (b) in situ free radical graft polymers contg. polyether-polyols grafted over C-C bonds were used. The polyurethanes have better load capacity, tensile, strength, compression set, and tear strength. Foams with low temp. flexibility may be prepd. with proper choice of (C). As flexible or rigid foams, elastomers or coatings. The foams may be used for upholstery, shoe soles, crash pads, etc.
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公开(公告)号：DE3030055A1
公开(公告)日：1982-03-25
申请号：DE3030055
申请日：1980-08-08
Applicant: BASF AG
Abstract: A process for the preparation of ethylene homopolymers, and ethylene copolymers with minor amounts of higher alpha -monoolefins, by polymerizing the monomer or monomers by means of a supported catalyst (1) containing a chromium-hydrocarbon complex (1.2) on an inorganic oxide carrier (1.1), wherein (1) a supported catalyst is employed which contains (1.2) a chromium-hydrocarbon complex of the formula RCrACrR, where R is a cyclic and/or open-chain hydrocarbon, or hydrocarbon radical, of 2n and 2n+1 carbon atoms respectively and having from 1 to n non-cumulated double bonds, n being from 2 to 10, Cr is chromium and A is cyclooctatetraene, a divalent n-octatetraene radical or alkyl-substituted homologs thereof, on (1.1) a particular inorganic oxide carrier, with or without (2) a co-catalyst chosen from a particular group of alkyl-aluminum compounds. The process gives polymers having a particularly broad molecular weight distribution.
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Patent Agency Ranking
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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7.发明专利
公开(公告)号：DE2546377A1
公开(公告)日：1977-04-21
申请号：DE2546377
申请日：1975-10-16
Applicant: BASF AG
Inventor： ECHTE ADOLF DIPL CHEM DR , STEIN DIETER DIPL CHEM DR
IPC: C08F295/00
Abstract: Prepn. of block copolymers from a polymer block (a) from anionic-polymerisable monomer (a) and one or two polymer blocks (B) from radical-polymerisable monomer (b), is described. The process comprises (1) coupling of block (A) with one or two end alkali metal-carbon bonds with an azo cpd. of formula X-(CH2)n-C(R1R2)-N N-C(R1R2)- - (CH2)n-X (I) where X is Cl or Br, R1 and R2 are 1-20C aliphatic, cycloaliphatic or aromatic gps.; n is 0-5) (2) addn. of (b) and heating to decompose the coupling prod. and give a block (A) with one or two radical chain ends, and (3) polymerisation of blocks (B) or to one or both chain ends. Molar ratio of alkali metal in (A) to halogen in (I) is pref. 1:1. Impact-resistant copolymers, e.g. of SAN or ABS type, may be obtd. Yield and mechanical properties of the prodn. are improved by use of (I) in place of azodinitriles.
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公开(公告)号：DE3030916A1
公开(公告)日：1982-04-08
申请号：DE3030916
申请日：1980-08-16
Applicant: BASF AG
Abstract: In the prepn. of a new carrier catalyst, contg. a Cr-hydrocarbon complex cpd. on an inorganic oxide carrier, a Cr hydrocarbon-complex cpd. having formula RCrACrR (where R is a hydrocarbon or a ring- and/or open-chained hydrocarbyl gp. contg. 2 n or 2n + 1C atoms and 1-n non-heaped double bonds; n is integer 2-10 and A is cyclooctatetraene or a divalent n-octatetraene gp. in either of which up to 8 H atoms can be substd. by 1-4C alkyl gps.) is applied to a finely-divided, porous, inorganic-oxidic carrier. The carrier has particle dia. 1-1000 microns, pore vol. 0.3-3 cc/g, surface 100-1000 sq.m/g and formula SiO2.aAl2O3 (where a is no. 0-2). The carrier catalyst (I) whould contain 0.01-10 wt.% w.r.t. carrier (1,1), of complex cpd. (1,2), calculated as Cr. The catalyst is used in C2H4 homo-polymerisation or co-polymerisation with alpha-mono-olefins. Polymers can be obtd. having a wide mol.wt. distribution.
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公开(公告)号：DE2626969A1
公开(公告)日：1977-12-29
申请号：DE2626969
申请日：1976-06-16
Applicant: BASF AG
IPC: C08F212/02 , C08F291/02 , C08F12/00
Abstract: A vinyl aromatic cpd. is (co)polymerised, opt. in presence of a rubbery component, in presence of 0.001-0.5 (0.005-0.05) wt.%, w.r.t. monomer(s) of a cpd. (I) of formula H2C=C(R1)-CO-O-R-O-OC-C(R1)=CH2, R1 is H or (m)ethyl and R is -CnH2n-, in which n = 2-20, or -R2(O-R2-)m in which m=1-20 and R2 is 1-4C (un)branched alkylene. Polymers with the same index of viscosity may be obtd. at higher polymerisation temp. The monomer is esp. styrene and substd. styrenes. Claimed I are butane diol diacrylate and di(m)ethacrylate. In an example, polystyrene was obtd. at 0.154 kg/litre/hour in presence of butane diol diacrylate, and at 0.0812 in absence of the acrylate.
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公开(公告)号：DE2402277A1
公开(公告)日：1975-08-21
申请号：DE2402277
申请日：1974-01-18
Applicant: BASF AG
Inventor： WURMB ROLF DIPL CHEM DR , KUNDE JOACHIM DIPL CHEM DR , STEIN DIETER DIPL CHEM DR , GAUSEPOHL HERMANN DIPL CHEM DR , THEYSOHN RAINER DIPL CHEM DR
Abstract: Reinforced plastics containing an addition of from 0.05 to 2% w/w of a styrene oligomer.
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