公开(公告)号：DK0379109T3

公开(公告)日：1993-11-15

申请号：DK90100696

申请日：1990-01-13

Applicant: BASF AG

Inventor： FIKENTSCHER ROLF DR ,  PERNER JOHANNES DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  BIRNBACH STEFAN DR ,  OFTRING ALFRED DR ,  GOECKEL ULRICH DR

IPC: C07C229/24 ,  C07C309/13 ,  C11D1/72 ,  C09K3/00 ,  C09K23/28 ,  C09K23/42 ,  C11D3/33

Abstract: Glycerol aminocarboxylates of the formula (I) where n is from 0 to 10 and R is where L is iminodiacetate, aspartate, glutamate, sarcosinate, glycinate, serinate, hydroxyaspartate, ethanolaminoacetate, diethanolamino, alanate or taurinate and X is hydrogen, an alkali metal, ammonium or substituted ammonium, are prepared by esterifying glycerol or polyglycerols which contain up to 10 glycerol units with maleic anhydride or itaconic anhydride and addition of compound L-H where L is as defined above to the double bonds of the esters, and are used as complexing agents.

公开(公告)号：DE59001816D1

公开(公告)日：1993-07-29

申请号：DE59001816

申请日：1990-01-13

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  BIRNBACH STEFAN DR ,  FIKENTSCHER ROLF DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  GOECKEL ULRICH DR ,  PERNER JOHANNES DR

IPC: C11D1/72 ,  C07C229/24 ,  C07C309/13 ,  C09K3/00 ,  C09K23/28 ,  C09K23/42 ,  C11D3/33

Abstract: Glycerol aminocarboxylates of the formula (I) where n is from 0 to 10 and R is where L is iminodiacetate, aspartate, glutamate, sarcosinate, glycinate, serinate, hydroxyaspartate, ethanolaminoacetate, diethanolamino, alanate or taurinate and X is hydrogen, an alkali metal, ammonium or substituted ammonium, are prepared by esterifying glycerol or polyglycerols which contain up to 10 glycerol units with maleic anhydride or itaconic anhydride and addition of compound L-H where L is as defined above to the double bonds of the esters, and are used as complexing agents.

公开(公告)号：AT90935T

公开(公告)日：1993-07-15

申请号：AT90100696

申请日：1990-01-13

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  BIRNBACH STEFAN DR ,  FIKENTSCHER ROLF DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  GOECKEL ULRICH DR ,  PERNER JOHANNES DR

IPC: C11D1/72 ,  C07C229/24 ,  C07C309/13 ,  C09K3/00 ,  C09K23/28 ,  C09K23/42 ,  C11D3/33

公开(公告)号：AT39703T

公开(公告)日：1989-01-15

申请号：AT83107215

申请日：1983-07-22

Applicant: BASF AG

Inventor： HUMMERICH RAINER DR ,  GOECKEL ULRICH DR ,  ROCKSTROH HERMANN ,  SCHMIDT HANS JUERGEN ,  LEHNERER WOLFGANG DR

IPC: C08G6/02 ,  C08G12/00 ,  C08G12/12 ,  C09J3/06 ,  C09J3/16

公开(公告)号：ES2055170T3

公开(公告)日：1994-08-16

申请号：ES90100696

申请日：1990-01-13

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  BIRNBACH STEFAN DR ,  FIKENTSCHER ROLF DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  GOECKEL ULRICH DR ,  PERNER JOHANNES DR

IPC: C07C229/24 ,  C07C309/13 ,  C11D1/72 ,  C09K3/00 ,  C09K23/28 ,  C09K23/42 ,  C11D3/33

Abstract: Glycerol aminocarboxylates of the formula (I) where n is from 0 to 10 and R is where L is iminodiacetate, aspartate, glutamate, sarcosinate, glycinate, serinate, hydroxyaspartate, ethanolaminoacetate, diethanolamino, alanate or taurinate and X is hydrogen, an alkali metal, ammonium or substituted ammonium, are prepared by esterifying glycerol or polyglycerols which contain up to 10 glycerol units with maleic anhydride or itaconic anhydride and addition of compound L-H where L is as defined above to the double bonds of the esters, and are used as complexing agents.

公开(公告)号：DE3783554D1

公开(公告)日：1993-02-25

申请号：DE3783554

申请日：1987-09-17

Applicant: BASF AG

Inventor： DENZINGER WALTER ,  HARTMANN HEINRICH DR ,  GOECKEL ULRICH DR ,  RICHTER FELIX DR ,  RAUBENHEIMER HANS-JUERGEN ,  WINKLER EKHARD DR

IPC: C08F290/00 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C08F2/06 ,  C08F4/32 ,  C08F8/12 ,  C08F20/02 ,  C08F20/10 ,  C08F220/20 ,  C08F222/02 ,  C08F222/06 ,  C08F299/02

Abstract: New slightly crosslinked, water-soluble polymaleic acid (I) is obtd. by: (a) polymerising maleic anhydride (II) with 0.1-10 (wt.)% crosslinker (III) contg. at least 2 ethylenically unsatd. double bonds in an aromatic hydrocarbon (IV) at 60-200 deg.C in the presence of 1-20 wt.%, w.r.t. (II), of a peroxy-ester (V) derived from satd. or ethylenically unsatd. carboxylic acids; and (b) hydrolysing the polymer contg. anhydride gps. to (I) with a Fikentscher K value of 7-20 (measured at 25 deg.C in aq. soln. at pH 7 as Na salt and a (I) concn. of 5%). (I) is pref. prepd. as described above, pref. using 0.2-5% (III) and 5-16% (V) w.r.t. (II). (III) is pref. a di(meth)acrylate of a satd. di- or poly-ol; a polyethylene or polypropylene glycol di(meth)acrylate with mol.wt. 200-9000; a vinyl ester of an ethylenically unsatd. 3-6C carboxylic acid; a vinyl ester of a satd. di- or poly-carboxylic acid; a di- or poly-vinyl ether of a di- or poly-ol; an allyl ester of an ethylenically unsatd. carboxylic acid; an allyl ether of polyols; methylenebis(meth)acrylamide; divinylethyleneurea; divinylpropyleneurea; DVB; and/or divinyldioxane; esp. a 2-6C alkylene di(meth)acrylate; or a polyethylene and/or polypropylene di(meth)acrylate with mol.wt. 400-2000. (IV) is benzene, toluene, xylene, ethylbenzene, diethylbenzene, isopropylbenzene and/or diisopropylbenzene. (V) is tert.-butyl per-2-ethylhexanoate (VA), tert.-butyl perpivalate and/or tert.-butyl perbenzoate.

公开(公告)号：DE3378832D1

公开(公告)日：1989-02-09

申请号：DE3378832

申请日：1983-07-22

Applicant: BASF AG

Inventor： HUMMERICH RAINER DR ,  GOECKEL ULRICH DR ,  ROCKSTROH HERMANN ,  SCHMIDT HANS JUERGEN ,  LEHNERER WOLFGANG DR

IPC: C08G6/02 ,  C08G12/00 ,  C08G12/12 ,  C09J3/06 ,  C09J3/16

公开(公告)号：DE3631814A1

公开(公告)日：1988-03-31

申请号：DE3631814

申请日：1986-09-19

Applicant: BASF AG

Inventor： DENZINGER WALTER ,  HARTMANN HEINRICH DR ,  GOECKEL ULRICH DR ,  RICHTER FELIX DR ,  RAUBENHEIMER HANS-JUERGEN ,  WINKLER EKHARD DR

IPC: C08F290/00 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C08F2/06 ,  C08F4/32 ,  C08F8/12 ,  C08F20/02 ,  C08F20/10 ,  C08F220/20 ,  C08F222/02 ,  C08F222/06 ,  C08F299/02 ,  C08F267/04 ,  C08F22/06

Abstract: Slightly crosslinked, water-soluble polymaleic acid which is obtainable by polymerization of maleic anhydride with from 0.1 to 10% by weight of a crosslinking agent in an aromatic hydrocarbon at from 60 DEG to 200 DEG C. in the presence of from 1 to 20% by weight, based on maleic anhydride, of a peroxyester, and hydrolysis of the polymer to give slightly crosslinked polymaleic acid having a Fikentscher K value of from 8 to 20 (measured at 20 DEG C. in 5% strength aqueous solution at pH 7 as the Na salt), a process for the preparation of slightly crosslinked polymaleic acid, and its use as a water treatment agent for reducing boiler scale and hard water deposits in water-conveying systems.

公开(公告)号：ES2053494T3

公开(公告)日：1994-08-01

申请号：ES87113595

申请日：1987-09-17

Applicant: BASF AG

Inventor： DENZINGER WALTER ,  HARTMANN HEINRICH DR ,  GOECKEL ULRICH DR ,  RICHTER FELIX DR ,  RAUBENHEIMER HANS-JUERGEN ,  WINKLER EKHARD DR

IPC: C08F290/00 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C08F2/06 ,  C08F4/32 ,  C08F8/12 ,  C08F20/02 ,  C08F20/10 ,  C08F220/20 ,  C08F222/02 ,  C08F222/06 ,  C08F299/02

Abstract: Slightly crosslinked, water-soluble polymaleic acid which is obtainable by polymerization of maleic anhydride with from 0.1 to 10% by weight of a crosslinking agent in an aromatic hydrocarbon at from 60 DEG to 200 DEG C. in the presence of from 1 to 20% by weight, based on maleic anhydride, of a peroxyester, and hydrolysis of the polymer to give slightly crosslinked polymaleic acid having a Fikentscher K value of from 8 to 20 (measured at 20 DEG C. in 5% strength aqueous solution at pH 7 as the Na salt), a process for the preparation of slightly crosslinked polymaleic acid, and its use as a water treatment agent for reducing boiler scale and hard water deposits in water-conveying systems.

公开(公告)号：DE4001808A1

公开(公告)日：1991-07-25

申请号：DE4001808

申请日：1990-01-23

Applicant: BASF AG

Inventor： GOUSETIS CHARALAMPOS DR ,  GOECKEL ULRICH DR ,  BUECHNER KARL-HEINZ ,  DENZINGER WALTER ,  HARTMANN HEINRICH DR

IPC: C08L33/02 ,  C02F5/10 ,  C02F5/12 ,  C08F26/00 ,  C08F26/02 ,  C08L39/00 ,  C08L39/02

Abstract: Water-sol. copolymers, with K value 8-50 (1% aq. soln., pH 7, 25 deg. C), contg. as monomers (a) 99-50 wt.% of 3-8C mono-ethylenically unsatd. carboxylic acids, or alkali, NH4 or amine salts, and (b) 1-50% of monomers of formula (I) CH2 = CHN(COR1)R2 or copolymers contg. vinylamine units obtd. by (partial) splitting off of the formyl gp. from (I), are used as agents for treating water. R1, R2 = H or 1-6C alkyl. Pref. the copolymer may contain (c) 0-20% of other copolymerisable mono-ethylenically unsatd. monomers, and esp. contains (a) 95-70 wt.% of (meth)acrylic acid and/or maleic acid, and (b) 5-30% of N-vinylformamide, in which 1-100% of the N-vinyl-formamide units may have been converted to vinylamine units.