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公开(公告)号：DE2846758A1
公开(公告)日：1980-05-08
申请号：DE2846758
申请日：1978-10-27
Applicant: BASF AG
Inventor： KLAERNER PETER DIPL CHEM DR , STAIGER GERHARD DIPL CHEM DR , SCHWEIER GUENTHER DIPL CHEM DR
Abstract: A Ti chloride component for a Ziegler-Natta polymerisation catalyst is prepd. by subjecting a component consisting at least mainly of TiCl3 or TiCl4 to a CO2 atmos. under a pressure of 0.1-10 bars. at between -20 degrees C and 100 degrees C, for 0.5-60 mins. Higher catalyst productivity is obtd. Polymers of higher crystallinity are produced. The catalyst contg. the Ti component and an Al-alkyl has an induction period, which reduces the risk of blockage by polymer on addn. of the Ti component. The catalyst is esp. used in (co)polymerisation of propylene or of ethylene.
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公开(公告)号：DE2713552A1
公开(公告)日：1978-10-12
申请号：DE2713552
申请日：1977-03-28
Applicant: BASF AG
Abstract: In the prodn. of a TiCl3 catalyst component for Ziegler-Natta-type polymerisation catalysts, an appropriate catalyst component consisting (mainly) of TiCl3 is exposed to a CO atmos. at 0.1-10 (esp. 0.5-1 bar) for 0.5-60 (esp. 5-15) min. at -20 to 100 (esp. 10 to 30) degrees C. These catalysts are used for the homo- and co-polymerisation of 2-6C mono-olefins. The catalyst not only yields polymers in high yields and with high crystallinity but also has the property of becoming active on mixing with the Al alkyl component only after a sufficiently long induction period, which is partic. important in continuous polymerisation. Esp. good results are obtd. in dry polymerisation, although it is also possible to work in liq. medium.
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公开(公告)号：DE3017571A1
公开(公告)日：1981-11-12
申请号：DE3017571
申请日：1980-05-08
Applicant: BASF AG
Abstract: A modified Ti component for Zeigler-Natta catalysts are prepd. by mixing 100 pts. vol. RiCl4 (I) with a benzene deriv. (II) of formula R3p-Ph-CnH2nCr4R5Cl (where R3 is 1-4C alkyl, R4 is H or Cl, R5 is H or Cl or R4 and R5 together are O, n is 0-3 and p is 0-3) at 30-100 deg. C until a homogeneous liq. is formed; mixing the prod. continuously with magnesium alcoholate (III) of formula Mg(OD)2 (where D is 1-8C monovalent satd. aliphatic and/or aromatic hydrocarbon) with a particle size of 0.05-5.0 um in mol. ratio of (II):(III) of 1:12-1:1 for 0.2-4 hrs. at 40-180 deg. C, sepg. of the solids and continuously mixing 100 pts. wt. (I) with 0.2-100 pts. wt. of the above solid prod. and opt. up to 15 pts. wt. (II) for 0.1-5 hrs. at 40-180 deg. C and sepg. off the prod. The catalyst allows polymers to be prepd. at relatively high polymerisation temps., with improved morphological properties i.e. uniform particle size, reduction of fines, high bulk density and/or flow without detriment to stereoregularity and yield.
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公开(公告)号：DE3010871A1
公开(公告)日：1981-10-01
申请号：DE3010871
申请日：1980-03-21
Applicant: BASF AG
IPC: C08F10/00
Abstract: Ziegler-Natta catalyst system, for 2-6C alpha-mono-olefin homo- or copolymerisation at 20-160 deg.C under pressure 1-100 bar, contains a phenolic cpd. having formula (I) or (II) (where R3 is 1-6C alkyl; R4 is H or 1-6C alkyl; R5 is H or satd. hydrocarbyl contg. no more than 30C and opt. up to a total of 6 ether gps. and/or ester gps; R6 is 2-24C alkyl and o is integer 1-6), in addn. to (1) a Ti halide, (2) an ester and (3) an Al alkyl, provided mol. ratio Al alkyl:phenolic cpd. is 1:1 to 40:1. In examples, the addn. of (I) or (II) increases polypropylene yield and proportion of polypropylene insoluble in n-heptane.
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Patent Agency Ranking
公开(公告)号：DE2841646A1
公开(公告)日：1980-04-03
申请号：DE2841646
申请日：1978-09-25
Applicant: BASF AG
Inventor： JAGGARD JAMES F R DIPL CHEM DR , HENNENBERGER PETER DIPL CHEM D , STAIGER GERHARD DIPL CHEM DR , KLAERNER PETER DIPL CHEM DR
Abstract: The process involves stopping and restarting the homo- or co-polymerisation 2-6C alpha-monoolefins at 40-120 degrees C. and 1-100 bar using a Ziegler-Natta catalyst of (a) a TiCl3 cocrystallisate of the formula TiCl3.nAlCl3 (in which n = 0.31-0.35), opt. modified with an electron donor, and (b) an Al cpd. of the formula R2AlX (in which R is 1-6C alkyl; X is Cl or R) in an (a):(b) molar ratio of 1:1-100. Polymerisation is stopped by introducing CO and/or CO2 to a concn. of min. 0.5 mmole/l. reactor vol. under 2 min. and restarted by replacing the CO/CO2 with fresh monomer. Overheating and the danger of explosion can be avoided easily and economically. Introduction of the stopper can be controlled automatically by a safety system.
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公开(公告)号：DE2616260A1
公开(公告)日：1977-11-03
申请号：DE2616260
申请日：1976-04-13
Applicant: BASF AG
Abstract: A process for the manufacture of poly- alpha -olefins by polymerizing alpha -olefins by means of a catalyst system comprising (1) a titanium-containing component obtained from (1.1) a compound of the formula TiCl3.1/3AlCl3 and (1.2) an organic electron donor, containing phosphorus, nitrogen and/or oxygen atoms, which has been milled with the compound of the formula TiCl3.1/3AlCl3 (1.1), in order to form a complex compound, the milling being carried out without assistants or additives in a vibratory ball mill under specific acceleration conditions and at a temperature which is from 4 DEG to 10 DEG C. below the temperature at which the particles of the material being ground begin to agglomerate, and (2) an aluminum-containing component, in which process the titanium-containing component (1) of the catalyst system used is one which has been treated, after milling and before polymerization, with (i) titanium tetrachloride and (ii) an ether and/or an ester.
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公开(公告)号：DE3021296A1
公开(公告)日：1982-01-07
申请号：DE3021296
申请日：1980-06-06
Applicant: BASF AG
Inventor： JAGGARD JAMES F R DIPL CHEM DR , KLAERNER PETER DIPL CHEM DR , STAIGER GERHARD DIPL CHEM DR
Abstract: In the prepn. of a new Ti(III)-component (1) for Ziegler-Natta catalyst systems, a Ti-contg. cpd. having TiCl3.nAlCl3, (A), (where n is 0.01-1) is ground with a P-contg. cpd. having formula OmP(R1)3, (B), (where m is 0 or 1 ; R1 is R2, OR2 or N(R2)2 and R2 is 1-24C alkyl, aryl, alkaryl or aralkyl). Specific grinding conditions are used. (B) is added to (A) in quantities corresponding to molar ratio Ti in (A) : (B) 1 : 0.01 to 1 : 1. A suspension of (i) 1 pt.wt. of prod.; (ii) 0.5-20 pts.wt. hydrocarbon, (C), liq. under normal conditions and boiling below 150 deg.C; and (iii) an O-contg. cpd. (D) is prepd. (D) can be a 4-30C ether of formula R8-O-R8' (where R8 and R8' are 1-15C alkyl, Ph or 7-14C alkyl-phenyl) and/or a 2-34C ester having formula R9'-O-CO-R9 or R9'-O-CO-CR9=CHR9 (where R9 is H, 1-12C alkyl, 7-14C phenyl-alkyl in which Ph is opt. mono-alkyl substd., Ph or 7-14C alkyl-phenyl ; R9' is 1-8C alkyl, Ph or 7-14C phenyl-alkyl). (D)-quantities are such that molar ratio Ti in (A) to (D) is 1 : 0.01 to 1 : 2. The suspension is strongly stirred 5-120 min. at 40-140 deg. C and cooled to 15-25 deg.C. The solid separated from the suspension is opt. washed with a hydrocarbon, liq. under normal conditions and boiling below 150 deg.C and dried to recover the new Ti(III)-componentt (1). The catalyst systems are used in 2-6C alpha-mono-olefin (co)polymerisation. Stereoregular polymers are obtd. in high yields. The prods. have a low fine grain proportion.
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公开(公告)号：DE2914667A1
公开(公告)日：1980-10-23
申请号：DE2914667
申请日：1979-04-11
Applicant: BASF AG
Inventor： STAIGER GERHARD DIPL CHEM DR
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公开(公告)号：DE2841715A1
公开(公告)日：1980-04-10
申请号：DE2841715
申请日：1978-09-25
Applicant: BASF AG
Abstract: A process for the manufacture of homopolymers and copolymers of alpha -monoolefins by polymerizing the monomer or monomers at relatively low temperatures under relatively low pressures by means of a Ziegler-Natta catalyst comprising (I) a titanium chloride component and (II) an aluminumalkyl component, wherein the titanium chloride component (I) employed is obtained by exposing a conventional catalyst component consisting, or substantially consisting, of titanium trichloride or titanium tetrachloride, to a carbon dioxide atmosphere under specific conditions. Catalysts obtained from titanium chloride components (I) which have been treated in this way exhibit a relatively long induction period.
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