11.
    发明专利
    未知

    公开(公告)号:FI961470A

    公开(公告)日:1996-04-01

    申请号:FI961470

    申请日:1996-04-01

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03179 Sec. 371 Date Apr. 2, 1996 Sec. 102(e) Date Apr. 2, 1996 PCT Filed Sep. 23, 1994 PCT Pub. No. WO95/09877 PCT Pub. Date Apr. 13, 1995An ethylene-based copolymer which is suitable as a flow improver for mineral oil middle distillates and is composed of a) from 50 to 94% by weight of ethylene; b) from 3 to 30% by weight of one or more vinyl esters of C2-C6-monocarboxylic acids; c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the formula I (I) which R1 is hydrogen or methyl, R2 and R3 are identical or different and are each hydrogen or C1-C6-alkyl and A1 is straight-chain or branched C2-C10-alkylene; and d) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), wherein copolymers containing vinyl acetate as monomer b) and having a number average molecular weight of from 5,000 to 50,000 are excluded from the scope of the copolymer.

    ETHYLENE-BASED COPOLYMERS AND THEIR USE AS VISCOSITY IMPROVERS IN PETROLEUM DISTILLATES

    公开(公告)号:CA2170744A1

    公开(公告)日:1995-04-13

    申请号:CA2170744

    申请日:1994-09-23

    Applicant: BASF AG

    Abstract: Ethylene-based copolymers suitable as viscosity improvers for petroleum distillates of a) 50 to 94 wt. % ethylene; b) 3 to 30 wt. % one or more vinyl esters of C2-C6 monocarboxylic acids; c) 3 to 20 wt. % one or more aminoalkylene acrylates of general formula (I) in which R1 is hydrogen or methyl, the radicals R2 and R3 may be the same or different and stand for hydrogen or a C1-C6 alkyl radical and A1 is a straight-chained or branched C2C10 alkylene radical; and d) 0 to 10 wt. % one or more monomers which can be copolymerised with monomers a) to c), in which such copolymers are excluded in which monomer b) is vinyl acetate and have a number average molecular weight of 5000 to 50000; or of a') 50 to 95.5 wt. % ethylene; b') 4 to 30 wt. % one or more vinyl esters of C2-C6 monocarboxylic acids; c') 0.5 to 20 wt. % one or more vinyl imidazoles of general formula (II) in which the radicals R4, R5 and R6 may be the same or different and are hydrogen or a C1-C6 alkyl radical, or 0.5 to 20 wt. % one or more aminoalkyl vinyl ethers of general formula (III) in which the substituents are: R7, R8: C1-C6 alkyl; R9, R10, R11: hydrogen or C1-C6 alkyl; A2: C2-C6 alkylene; and d') 0 to 10 wt. % one or more monomers which can be copolymerised with monomers a') to c'). The invention also relates to the use of these copolymers as viscosity improvers for petroleum middle distillates and to pretroleum distillates containing them.

    13.
    发明专利
    未知

    公开(公告)号:FI113659B

    公开(公告)日:2004-05-31

    申请号:FI961470

    申请日:1996-04-01

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03179 Sec. 371 Date Apr. 2, 1996 Sec. 102(e) Date Apr. 2, 1996 PCT Filed Sep. 23, 1994 PCT Pub. No. WO95/09877 PCT Pub. Date Apr. 13, 1995An ethylene-based copolymer which is suitable as a flow improver for mineral oil middle distillates and is composed of a) from 50 to 94% by weight of ethylene; b) from 3 to 30% by weight of one or more vinyl esters of C2-C6-monocarboxylic acids; c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the formula I (I) which R1 is hydrogen or methyl, R2 and R3 are identical or different and are each hydrogen or C1-C6-alkyl and A1 is straight-chain or branched C2-C10-alkylene; and d) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), wherein copolymers containing vinyl acetate as monomer b) and having a number average molecular weight of from 5,000 to 50,000 are excluded from the scope of the copolymer.

    14.
    发明专利
    未知

    公开(公告)号:ES2133986T3

    公开(公告)日:1999-09-16

    申请号:ES96927693

    申请日:1996-08-06

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/03472 Sec. 371 Date Feb. 12, 1998 Sec. 102(e) Date Feb. 12, 1998 PCT Filed Aug. 6, 1996 PCT Pub. No. WO97/07111 PCT Pub. Date Feb. 27, 1997A process for the preparation of butyrolactones of the formula I where the substituents R1 and R2 are hydrogen, alkyl or hydroxyalkyl groups, or aryl and trialkylsilyl groups, if appropriate carrying inert: substituents, is described in which an alkyne of the formula IIR1-C 3BOND C-R2IIwhere the substituents have the meanings indicated above, is reacted under reducing conditions at elevated pressure and elevated temperature with carbon monoxide CO and hydrogen in the presence of a transition metal catalyst or with carbon monoxide and water in the presence of a transition metal catalyst.

    15.
    发明专利
    未知

    公开(公告)号:DE59601895D1

    公开(公告)日:1999-06-17

    申请号:DE59601895

    申请日:1996-08-06

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/03472 Sec. 371 Date Feb. 12, 1998 Sec. 102(e) Date Feb. 12, 1998 PCT Filed Aug. 6, 1996 PCT Pub. No. WO97/07111 PCT Pub. Date Feb. 27, 1997A process for the preparation of butyrolactones of the formula I where the substituents R1 and R2 are hydrogen, alkyl or hydroxyalkyl groups, or aryl and trialkylsilyl groups, if appropriate carrying inert: substituents, is described in which an alkyne of the formula IIR1-C 3BOND C-R2IIwhere the substituents have the meanings indicated above, is reacted under reducing conditions at elevated pressure and elevated temperature with carbon monoxide CO and hydrogen in the presence of a transition metal catalyst or with carbon monoxide and water in the presence of a transition metal catalyst.

    16.
    发明专利
    未知

    公开(公告)号:DK0721475T3

    公开(公告)日:1997-05-26

    申请号:DK94927642

    申请日:1994-09-23

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03179 Sec. 371 Date Apr. 2, 1996 Sec. 102(e) Date Apr. 2, 1996 PCT Filed Sep. 23, 1994 PCT Pub. No. WO95/09877 PCT Pub. Date Apr. 13, 1995An ethylene-based copolymer which is suitable as a flow improver for mineral oil middle distillates and is composed of a) from 50 to 94% by weight of ethylene; b) from 3 to 30% by weight of one or more vinyl esters of C2-C6-monocarboxylic acids; c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the formula I (I) which R1 is hydrogen or methyl, R2 and R3 are identical or different and are each hydrogen or C1-C6-alkyl and A1 is straight-chain or branched C2-C10-alkylene; and d) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), wherein copolymers containing vinyl acetate as monomer b) and having a number average molecular weight of from 5,000 to 50,000 are excluded from the scope of the copolymer.

    17.
    发明专利
    未知

    公开(公告)号:NO961334L

    公开(公告)日:1996-04-01

    申请号:NO961334

    申请日:1996-04-01

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03179 Sec. 371 Date Apr. 2, 1996 Sec. 102(e) Date Apr. 2, 1996 PCT Filed Sep. 23, 1994 PCT Pub. No. WO95/09877 PCT Pub. Date Apr. 13, 1995An ethylene-based copolymer which is suitable as a flow improver for mineral oil middle distillates and is composed of a) from 50 to 94% by weight of ethylene; b) from 3 to 30% by weight of one or more vinyl esters of C2-C6-monocarboxylic acids; c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the formula I (I) which R1 is hydrogen or methyl, R2 and R3 are identical or different and are each hydrogen or C1-C6-alkyl and A1 is straight-chain or branched C2-C10-alkylene; and d) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), wherein copolymers containing vinyl acetate as monomer b) and having a number average molecular weight of from 5,000 to 50,000 are excluded from the scope of the copolymer.

    19.
    发明专利
    未知

    公开(公告)号:DE59402557D1

    公开(公告)日:1997-05-28

    申请号:DE59402557

    申请日:1994-09-23

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03179 Sec. 371 Date Apr. 2, 1996 Sec. 102(e) Date Apr. 2, 1996 PCT Filed Sep. 23, 1994 PCT Pub. No. WO95/09877 PCT Pub. Date Apr. 13, 1995An ethylene-based copolymer which is suitable as a flow improver for mineral oil middle distillates and is composed of a) from 50 to 94% by weight of ethylene; b) from 3 to 30% by weight of one or more vinyl esters of C2-C6-monocarboxylic acids; c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the formula I (I) which R1 is hydrogen or methyl, R2 and R3 are identical or different and are each hydrogen or C1-C6-alkyl and A1 is straight-chain or branched C2-C10-alkylene; and d) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), wherein copolymers containing vinyl acetate as monomer b) and having a number average molecular weight of from 5,000 to 50,000 are excluded from the scope of the copolymer.

    20.
    发明专利
    未知

    公开(公告)号:AT152138T

    公开(公告)日:1997-05-15

    申请号:AT94927642

    申请日:1994-09-23

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03179 Sec. 371 Date Apr. 2, 1996 Sec. 102(e) Date Apr. 2, 1996 PCT Filed Sep. 23, 1994 PCT Pub. No. WO95/09877 PCT Pub. Date Apr. 13, 1995An ethylene-based copolymer which is suitable as a flow improver for mineral oil middle distillates and is composed of a) from 50 to 94% by weight of ethylene; b) from 3 to 30% by weight of one or more vinyl esters of C2-C6-monocarboxylic acids; c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the formula I (I) which R1 is hydrogen or methyl, R2 and R3 are identical or different and are each hydrogen or C1-C6-alkyl and A1 is straight-chain or branched C2-C10-alkylene; and d) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), wherein copolymers containing vinyl acetate as monomer b) and having a number average molecular weight of from 5,000 to 50,000 are excluded from the scope of the copolymer.

Patent Agency Ranking