公开(公告)号：WO1992010433A1

公开(公告)日：1992-06-25

申请号：PCT/EP1991002225

申请日：1991-11-26

Applicant: BASF AKTIENGESELLSCHAFT ,  DENZINGER, Walter ,  HARTMANN, Heinrich ,  GROUSETIS, Charalampos ,  BUECHNER, Karl-Heinz

Inventor： BASF AKTIENGESELLSCHAFT

IPC: C02F05/10

CPC classification number: C02F5/10 ,  C02F5/12

Abstract: Described is the use, as water-treatment agents, of water-soluble graft polymers obtained by the radical-initiated polymerization of (A) monomer mixtures containing as monomers monoethylenically unsaturated carboxylic acids, their alkali-metal salts and/or their ammonium salts, in the presence of (B) monosaccharides, oligosaccharides, polysaccharides, oxidatively, hydrolytically or enzymatically degraded polysaccharides, chemically modified mono-, oligo- or polysaccharides, or mixtures of these compounds, in the ratio, by mass, of A:B of (95 to 20):(5 to 80).

公开(公告)号：WO1987004143A1

公开(公告)日：1987-07-16

申请号：PCT/US1986000005

申请日：1986-01-02

Applicant: ABADI, Khodabandeh

IPC: C02F05/10

CPC classification number: C11D3/222 ,  C02F5/08 ,  C11D7/265 ,  C23G1/02

Abstract: A scale removal composition for removal of hard water scale from solid surfaces which includes an aliphatic alpha-hydroxy carboxylic acid, a natural or synthetic gum or polymer which is soluble in water at a pH of about 3 or less, water, and, optionally, sodium silicate.

Abstract translation: 用于从固体表面除去硬水垢的除垢组合物，其包括脂肪族α-羟基羧酸，天然或合成胶或聚合物，其在约3以下的pH下可溶于水，以及任选地， 硅酸钠

公开(公告)号：WO1995007241A1

公开(公告)日：1995-03-16

申请号：PCT/EP1994002873

申请日：1994-08-31

Applicant: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN

Inventor： HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN ,  ENGELSKIRCHEN, Konrad ,  NITSCH, Christian ,  FISCHER, Herbert ,  SANDERS, Martina

IPC: C02F05/10

CPC classification number: C02F5/10

Abstract: The invention concerns the use of oxidized carboxy-group-containing polyglucosans and/or soluble salts thereof as threshold-action scale inhibitors in aqueous systems. Normally, it is sufficient to add 50 to 5000 ppm of the oxidized polyglucosan or its salt to the aqueous system.

Abstract translation: 氧化，含羧基的polyglucosans和/或它的水溶性盐的应用程序的一个新的领域是其与在含水体系中的阈值的动作阻垢剂的用途。 它通常是足够的，如果在从为50ppm的量加入至5000ppm的含水体系的氧化Polyglucosan或其盐。

公开(公告)号：WO1992020629A1

公开(公告)日：1992-11-26

申请号：PCT/US1992003905

申请日：1992-05-11

Applicant: H.E.R.C. INCORPORATED

Inventor： H.E.R.C. INCORPORATED ,  HIEATT, Allen, C. ,  LUDWIG, Jerome, H.

IPC: C02F05/10

CPC classification number: B08B9/032 ,  C02F5/10 ,  C02F5/12 ,  C11D7/08 ,  C11D7/265 ,  C11D7/3209 ,  C11D7/3218 ,  C11D7/3281 ,  C11D11/0041 ,  C23F14/02 ,  C23G1/26

Abstract: A soap composition for the removal and prevention of scale in aqueous media comprising a 1:1 stoichiometric equivalent of an organic carboxylic acid and an amine base. The organic carboxylic acid is selected from the group consisting of hydroxy-acetic, citric, acetic, gluconic, salicylic, tartaric and benzoic, and mixtures thereof. The amine base is selected from the group consisting of monoisopropanolamine, diisopropanolamine, triisopropanolamine, monoethanolamine, diethanolamine, triethanolamine, diethylamine, and mixtures thereof.

Abstract translation: 用于去除和防止含水介质中的垢的皂组合物，其包含1:1化学计量当量的有机羧酸和胺碱。 有机羧酸选自羟基 - 乙酸，柠檬酸，乙酸，葡萄糖酸，水杨酸，酒石酸和苯甲酸，以及它们的混合物。 胺碱选自单异丙醇胺，二异丙醇胺，三异丙醇胺，单乙醇胺，二乙醇胺，三乙醇胺，二乙胺及其混合物。

公开(公告)号：WO1983002607A1

公开(公告)日：1983-08-04

申请号：PCT/US1982000121

申请日：1982-01-29

Applicant: DEARBORN CHEMICAL COMPANY ,  KUHN, Vincent, R. ,  VENTURA, Ederlyna, M.

Inventor： DEARBORN CHEMICAL COMPANY

IPC: C02F05/10

CPC classification number: C02F5/12

Abstract: Procédé empêchant la formation d'incrustations sur des surfaces métalliques en contact avec des systèmes aqueux et consistant à ajouter une quantité limite de copolymères d'acide 2-acrylamido-2-méthylpropane sulfonique et d'acide acrylique ou méthacrylique ou de leurs sels solubles dans l'eau.

公开(公告)号：EP0142929A3

公开(公告)日：1986-07-16

申请号：EP84306786

申请日：1984-10-05

Applicant: BETZ EUROPE, INC.

Inventor： Chen, Fu

IPC: C02F05/08 ,  C02F05/10

CPC classification number: C02F5/10 ,  C02F5/105 ,  C02F5/12 ,  C02F5/125 ,  C23F11/08

Abstract: The present invention relates to the use of water soluble polymers comprising repeat unit moieties
wherein R, is H or lower alkyl (C,-C 3 ); R 2 is OH, OM, or NH 2 ; M is a water soluble cation; R 3 is a hydroxy substituted alkyl or alkylene radical having from 1 to about 6 carbon atoms or a non-substituted alkyl or alkylene radical having from 1 to 6 carbon atoms; X is an anionic radical; Z is H or hydrogens or a water soluble cation or cations which together counterbalance the valence of X, and a is 0 or 1. These copolymers, and terpolymeric derivatives, can be used in a method for inhibiting calcium phosphate or calcium phosphonate deposition in aqueous systems; and also to function to provide a passivated oxide film along treated metal surfaces when used conjointly with a water soluble orthophosphate source.

公开(公告)号：EP0133210A3

公开(公告)日：1985-07-24

申请号：EP84107237

申请日：1984-06-23

Applicant: The B.F. GOODRICH Company

Inventor： Masler III, William Frank ,  Amjad, Zahid

IPC: C02F05/10 ,  C02F05/12 ,  A23C03/07 ,  A23L02/10

CPC classification number: C02F5/10 ,  A23C9/152 ,  A23L2/46 ,  C02F5/12

Abstract: Water-soluble copolymers are useful in treating industrial process water in threshold inhibition amounts. Such copolymers are selected from copolymers of an acrylic acid, an acrylamide, and an alkoxyalkyl acrylate ester; and copolymers of an acrylic acid or a salt thereof, a lower alkenyl carboxylate, and optionally a salt of a lower alkenyl sulfonate.

公开(公告)号：EP0123482A3

公开(公告)日：1985-01-23

申请号：EP84302527

申请日：1984-04-13

Applicant: ROHM AND HAAS COMPANY

Inventor： Hann, William Mathis ,  Dupre, Jean ,  Natoli, John

IPC: C02F05/10

CPC classification number: C02F5/10

Abstract: Water soluble copolymer comprising 85 to 97 weight percent of acrylic acid units and 15 to 3 weight percent of hydrophobic comonomer comprising one or more of (C 2 to C.)-alkyl acrylates, (C 1 to C 3 -alkyl methacrylates and vinyl aromatic compounds, having a weight average molecular weight of 2,000 to 5,000 has been found useful in combating the formation of inorganic particulate material, such as hardness ion salt scale, in an aqueous system and/or for dispersing inorganic particulate matter, such as calcium carbonate or clay, present in an aqueous system. The aqueous system is preferably a cooling water system.

公开(公告)号：EP0103254A3

公开(公告)日：1984-05-02

申请号：EP83108753

申请日：1983-09-06

Applicant: BASF Aktiengesellschaft

Inventor： Denzinger, Walter ,  Hartmann, Heinrich, Dr. ,  Trieselt, Wolfgang, Dr. ,  Hettche, Albert, Dr. ,  Schneider, Rolf, Dr. ,  Raubenheimer, Hans-Juergen

IPC: C08F220/04 ,  C08F222/02 ,  C08F02/06 ,  C11D03/37 ,  C02F05/10

CPC classification number: C11D3/3761 ,  C02F5/10 ,  C08F220/04 ,  C08F222/02

公开(公告)号：EP0123052A3

公开(公告)日：1986-06-25

申请号：EP84101890

申请日：1984-02-23

Applicant: The B.F. GOODRICH Company

Inventor： Masler III, William Frank

IPC: C02F05/10 ,  C08F220/06 ,  C08F220/28 ,  C08F220/22

CPC classification number: C08F220/06 ,  C02F5/10 ,  C08F220/28

Abstract: A two-step process is disclosed for preparing an essentially non-crossiinked random copolymer of acrylic acid or methacrylic acid with esters of the acids which esters are formed by reaction with an alkylene oxide. Raw materials are (meth)acrylic acid and alkylene oxide. in a first step, a predetermined amount of a particular esterification catalyst is used, and with close control of process conditions, the (meth)acrylic acid yields both mono- and polyalkoxylated esters. in the second step polymerization is effected without separating the esterification catalyst or purifying the esters formed. The resulting random copolymer formed consists essentially of a terpolymer of (i) acrylic acid or methacrylic acid (together "(meth)acrylic"), (ii) a hydroxymonoalkylated (meth)acryiate, and (iii) a hydroxypolyalkyleneoxylated (meth)acrylate the monomeric moieties being present in specified relative proportions. Despite the presence of the polyalkyleneoxylated ester moiety the terpolymer is soluble in water, and is surprisingly effective in the treatment of industrial process water used in recirculating water systems.