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公开(公告)号:ES2190116T3
公开(公告)日:2003-07-16
申请号:ES98954254
申请日:1998-09-05
Applicant: BASF AG
Inventor: DECKERS ANDREAS , WEBER WILHELM , ANNEN ULRICH
IPC: C08L23/08 , C08F2/00 , C08F2/02 , C08F210/02 , C08F218/04 , C08J3/22 , C09D17/00
Abstract: A process is described for copolymerizing ethylene with vinyl esters and, if desired, with further vinylic comonomers in a tube reactor at pressures of from 500 to 4000 bar and at not more than 220° C., which comprises initiating the free-radical polymerization at at least two locations of the tube reactor by adding a catalyst/initiator and adjusting the temperature profile within the reactor such that the temperature maxima downstream of the initiation locations are from 150 to 220° C. and differ by less than ±10° C. from one another.
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公开(公告)号:DE59706044D1
公开(公告)日:2002-02-21
申请号:DE59706044
申请日:1997-04-24
Applicant: BASF AG
Inventor: MOLL ULRICH , DECKERS ANDREAS , KINGMA JOUKE , WEBER WILHELM
IPC: C08F2/00 , C08F4/44 , C08F4/46 , C08F4/50 , C08F4/622 , C08F4/639 , C08F4/6392 , C08F4/642 , C08F4/68 , C08F10/02 , C08F110/02
Abstract: A process is disclosed for preparing ethylene polymers with a molecular weight Mw (weight average) lower than 20,000 g/mole at temperatures in a range from 200 to 280 DEG C and pressures in a range from 1000 to 3500 bars in the presence of a catalyst system. The catalyst system used contains: (A) a non-bridged substituted or unsubstituted biscyclopentadienyl complex; (B) a metal compound of general formula (I) M (R )r (R )s (R )t, in which M is an alkaline, an alkaline earth metal or a metal of the third main group of the periodic table; R is hydrogen, C1-C10-alkyl, C6-C15-aryl, alkylaryl or arylalkyl with 1 to 10 C atoms in the alkyl radical and 6 to 20 C atoms in the aryl radical; R and R independently represent hydrogen, halogen, C1-C10-alkyl, C6-C15-aryl, alkylaryl, arylalkyl or alkoxy with 1 to 10 C atoms in the alkyl radical and 6 to 20 C atoms in the aryl radical; r is an integer from 1 to 3; and s and t are integers from 0 to 2, the sum r+s+t corresponding to the valency of M ; and (C) a metallocene ion-forming compound selected in a group which consists of strong, neutral Lewis acids, ionic compounds with lewis acid cations and ionic compounds with Brönsted acids as cations. Components (A), (B) and (C) are mixed together and after at the latest 5 minutes are dosed in the reactor.
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公开(公告)号:ES2162341T3
公开(公告)日:2001-12-16
申请号:ES97952035
申请日:1997-12-04
Applicant: BASF AG
Inventor: GAREISS BRIGITTE , DECKERS ANDREAS , KLATT MARTIN , WEBER WILHELM
IPC: C08L101/00 , C08K3/00 , C08K5/00 , C08L23/06 , C08L51/04 , C08L55/02 , C08L67/02 , C08L69/00 , C08L71/12 , C08L77/00 , C08L77/06
Abstract: Thermoplastic molding compositions compriseA) from 10 to 90% by weight of at least one thermoplastic polymer,B) from 1 to 20% by weight of a polyethylene which contains carboxyl groups and has a mean molecular weight Mn (number average) of from 24,000 to 100,000 g/mol,C) from 5 to 60% by weight of a halogen-free flame retardantD) from 0 to 70% by weight of other additives and processing aids,where the total of the percentages by weight of components A) to D) is 100%
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公开(公告)号:DE10009114A1
公开(公告)日:2001-08-30
申请号:DE10009114
申请日:2000-02-26
Applicant: BASF AG
Inventor: LANGE PAULUS DE , DECKERS ANDREAS , FUNK GUIDO , WEBER WILHELM
IPC: C08F2/18 , C08F110/02 , C08F10/02 , C09D191/06
Abstract: Production of polyethylene wax comprises polymerizing ethylene and optionally one or more comonomers in a suspension of a supported chromocene catalyst and optionally a cocatalyst at 0-120[deg]C and 0.5-150 bar using an ethylene:hydrogen molar ratio of 2-4:1. Independent claims are also included for the following: (1) polyethylene wax (I) obtainable by the above process; (2) production of oxidized polyethylene wax (II) by passing air, oxygen or an oxygen-containing gas through molten (I); (3) emulsions of (II) for the production of coatings; (4) floor care compositions containing (II); (5) coating compositions containing (II).
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公开(公告)号:AT172226T
公开(公告)日:1998-10-15
申请号:AT95907582
申请日:1995-01-23
Applicant: BASF AG
Inventor: WEISS STEFAN , MUELLER MICHAEL WOLFGANG , BOEHLKE KLAUS , WEBER WILHELM
Abstract: PCT No. PCT/EP95/00225 Sec. 371 Date Jul. 31, 1996 Sec. 102(e) Date Jul. 31, 1996 PCT Filed Jan. 23, 1995 PCT Pub. No. WO95/21221 PCT Pub. Date Aug. 10, 1995Prints are produced by the offset heatset process using a printing ink based on mineral oil and additionally using an agent for increasing the abrasion resistance of the prints, where the agent for increasing the abrasion resistance is an oxidized olefin polymer which has a melt viscosity of from 100 to 15,000 mm2/s, measured in accordance with DGF M-III 8 (75), and an acid number of from 5 to 50 mg of KOH/g of polymer, measured in accordance with DGF M-IV 2 (57).
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公开(公告)号:FI89750B
公开(公告)日:1993-07-30
申请号:FI873500
申请日:1987-08-12
Applicant: BASF AG
Inventor: LAUKE HARALD , WEBER WILHELM , LEYRER REINHOLD J , NICK BERNHARD , LOERZER THOMAS
Abstract: The process produces a sensitized lithographic printing plate from an aluminium base which has been pretreated mechanically, chemically and/or electrochemically in the standard way and anodised, and a photosensitive copying layer applied to said base, a thin hydrophilising layer consisting of a hydrolysate or condensate of at least one silane being applied between said base and copying layer. … These lithographic printing plates are suitable, in particular, for offset printing.
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公开(公告)号:NO873428L
公开(公告)日:1988-02-17
申请号:NO873428
申请日:1987-08-14
Applicant: BASF AG
Inventor: LAUKE HARALD , WEBER WILHELM , LEYRER REINHOLD J , NICK BERNHARD , LOERZER THOMAS
Abstract: The process produces a sensitized lithographic printing plate from an aluminium base which has been pretreated mechanically, chemically and/or electrochemically in the standard way and anodised, and a photosensitive copying layer applied to said base, a thin hydrophilising layer consisting of a hydrolysate or condensate of at least one silane being applied between said base and copying layer. … These lithographic printing plates are suitable, in particular, for offset printing.
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公开(公告)号:NO873428D0
公开(公告)日:1987-08-14
申请号:NO873428
申请日:1987-08-14
Applicant: BASF AG
Inventor: LAUKE HARALD , WEBER WILHELM , LEYRER REINHOLD J , NICK BERNHARD , LOERZER THOMAS
Abstract: The process produces a sensitized lithographic printing plate from an aluminium base which has been pretreated mechanically, chemically and/or electrochemically in the standard way and anodised, and a photosensitive copying layer applied to said base, a thin hydrophilising layer consisting of a hydrolysate or condensate of at least one silane being applied between said base and copying layer. … These lithographic printing plates are suitable, in particular, for offset printing.
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公开(公告)号:NO324462B1
公开(公告)日:2007-10-22
申请号:NO20002778
申请日:2000-05-30
Applicant: BASF AG
Inventor: WENDEROTH BERND , WEBER WILHELM , DECKERS ANDREAS , WEDEL PETER
IPC: C08F210/02 , C10L1/18 , C08F2/00 , C08F218/08 , C10L1/197
Abstract: In a process for preparing ethylene-vinyl acetate copolymers in which a mixture of ethylene and vinyl acetate is polymerized continuously in the presence of free-radical polymerization initiators and, if desired, molecular weight regulators in a cooled tube reactor at a pressure in the range from 1000 to 3500 bar, and the poly-merization initiator is added at the beginning and at two or more points along the tube reactor, and temperature changes in the reaction mixture along the tube reactor, between the first temperature maximum and the last addition of the polymerization initiator, are within a range of not more than 20° C.
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公开(公告)号:DE50210496D1
公开(公告)日:2007-08-30
申请号:DE50210496
申请日:2002-01-22
Applicant: BASF AG
Inventor: WITTKOWSKI LARS , DECKERS ANDREAS , WEBER WILHELM , DROEGE THOMAS , GONIOUKH ANDREI , MAEHLING FRANK-OLAF
Abstract: Preparation of ethylene polymers (A) by a high pressure process involves dissolving radical initiator(s) in ketone(s) (I); compressing; dosing the mixture to the polymerization reactor in one or more portions; and carrying out polymerization. Preparation of ethylene polymers (A) by a high pressure process involves: (1) dissolving radical initiator(s) in ketone(s) of formula R 1-CO-R 2(I); (2) compressing; (3) dosing the mixture to the polymerization reactor in one or more portions; and (4) carrying out polymerization at 140-350[deg]C and 400-4500 bars. R 1, R 21-6C alkyl or 3-12C cycloalkyl; or are linked to complete a 4-13 membered ring.
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