AU8153494A - Defoamer emulsion based on organofunctionally modified polysiloxanes - Google Patents

Defoamer emulsion based on organofunctionally modified polysiloxanes

Info

Publication number
AU8153494A
AU8153494A AU81534/94A AU8153494A AU8153494A AU 8153494 A AU8153494 A AU 8153494A AU 81534/94 A AU81534/94 A AU 81534/94A AU 8153494 A AU8153494 A AU 8153494A AU 8153494 A AU8153494 A AU 8153494A
Authority
AU
Australia
Prior art keywords
formula
pts
organopolysiloxane
alkyl
modified polysiloxanes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
AU81534/94A
Other versions
AU678644B2 (en
Inventor
Michael Keup
Roland Sucker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
TH Goldschmidt AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TH Goldschmidt AG filed Critical TH Goldschmidt AG
Publication of AU8153494A publication Critical patent/AU8153494A/en
Application granted granted Critical
Publication of AU678644B2 publication Critical patent/AU678644B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • B01D19/0409—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing Si-atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/10—Block- or graft-copolymers containing polysiloxane sequences
    • C08L83/12—Block- or graft-copolymers containing polysiloxane sequences containing polyether sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2383/04—Polysiloxanes

Abstract

Foam suppressant emulsion based on organofunctionally modified polysiloxanes is obtd. by mixing (a) 0-90 pts.wt. organopolysiloxane of formula (I), (b) 0-90 pts.wt. organopolysiloxane of formula (II), (c) 0-90 pts.wt. organopolysiloxane of formula (III) and (d) 0-15 pts.wt. finely divided silica, stirring this mixt. (which must contain 10-90 pts.wt. a+b+c) into a mixt. of (e) 5-85 pts.wt. organopolysiloxane of formula (IV) and (f) 5-50 pts.wt. water using a low-shear stirrer, to give a stock emulsion which is diluted to the required concn. immediately or just before use. In (a) (formula I), R1 = 1-8C alkyl or -Z-(CnH2nO)mR2 (with R2 = H or 1-8C alkyl; Z = -O-, -(CH2)p-O- or -CH2-CHMe-CH2-O (with p = 2 or 3); n = 2.7-4.0; m = 5-130); a = 4-1500; b = 0-100; c = 0-50. In (b) formula (II) = formula (I) with R1 = OH or 1-4C alkoxy; a, b, c as in (I). In (e), formula (IV) = formula (I) with R1 = 1-8C alkyl or -Z-(CqH2qO)r-R2 (gp. R) (with R2 and Z as above; q = 2.0-2.7; r = 5-120); at least one gp. R1 = R; a = 4-200; b = 0-100; c = 0-50. In (c) (III): R5 = 1-4C alkyl (at least 90% of these gps. = Me); x = 2.6-3.0; y = 8-80; w = 7-50; z = 1.5-10.
AU81534/94A 1993-12-17 1994-12-19 Defoamer emulsion based on organofunctionally modified polysiloxanes Ceased AU678644B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4343185A DE4343185C1 (en) 1993-12-17 1993-12-17 Defoamer emulsion based on organofunctionally modified polysiloxanes
DE4343185 1993-12-17

Publications (2)

Publication Number Publication Date
AU8153494A true AU8153494A (en) 1995-06-22
AU678644B2 AU678644B2 (en) 1997-06-05

Family

ID=6505342

Family Applications (1)

Application Number Title Priority Date Filing Date
AU81534/94A Ceased AU678644B2 (en) 1993-12-17 1994-12-19 Defoamer emulsion based on organofunctionally modified polysiloxanes

Country Status (12)

Country Link
EP (1) EP0658361B1 (en)
JP (1) JP2716667B2 (en)
CN (1) CN1063765C (en)
AT (1) ATE151306T1 (en)
AU (1) AU678644B2 (en)
CA (1) CA2135420A1 (en)
DE (2) DE4343185C1 (en)
DK (1) DK0658361T3 (en)
ES (1) ES2100617T3 (en)
FI (1) FI945935A (en)
GR (1) GR3023956T3 (en)
NO (1) NO943823L (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1064268C (en) * 1996-04-10 2001-04-11 财团法人工业技术研究院 Composition of mixed silicon series defoaming agent
DE19623409C1 (en) 1996-06-12 1998-02-12 Bayer Ag Defoamer mixtures, a process for their preparation and their use
GB2315757B (en) * 1996-07-31 2000-03-29 Gen Electric Dilution stable antifoam emulsion concentrates
US5990181A (en) * 1997-12-11 1999-11-23 Witco Corporation Aqueous foam quenching compositions
DE19922218A1 (en) * 1999-05-14 2001-02-15 Goldschmidt Ag Th Use of water-insoluble poly (oxy-1,4-butanediyl) containing polyoxyalkylene-polysiloxane block copolymers for defoaming aqueous media
EP2087931A3 (en) * 2008-02-05 2011-08-31 Evonik Goldschmidt GmbH Defoaming of ionic fluids
DE102012207484A1 (en) * 2012-05-07 2013-11-07 Wacker Chemie Ag Defoamer formulations containing organopolysiloxanes
JP6197768B2 (en) * 2014-09-03 2017-09-20 信越化学工業株式会社 Oil compound for defoamer, method for producing the same, and defoamer composition
JP6179479B2 (en) * 2014-08-05 2017-08-16 信越化学工業株式会社 Oil compound for defoamer, method for producing the same, and defoamer composition
EP3954740A1 (en) 2020-08-14 2022-02-16 Evonik Operations GmbH Defoamer composition based on polysiloxanes with organofunctionally modified polysiloxanes
JP2023063105A (en) * 2021-10-22 2023-05-09 Ｅｎｅｏｓ株式会社 Water-soluble processing oil composition and metal processing method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE819399A (en) * 1973-09-07 1974-12-16 ANTI-FOAM
US3984347A (en) * 1974-12-19 1976-10-05 Dow Corning Corporation Foam control composition
US4395352A (en) * 1978-06-29 1983-07-26 Union Carbide Corporation High efficiency antifoam compositions and process for reducing foaming
DE3011304A1 (en) * 1980-03-24 1981-10-08 Henkel KGaA, 4000 Düsseldorf FOAM ABSORBERS AND THEIR USE IN SYNTHETIC RESIN, LACQUER AND COLOR DISPERSIONS
DE3627782A1 (en) * 1986-08-16 1988-02-18 Goldschmidt Ag Th NEW ALKOXYSILOXANES, THE PRODUCTION AND USE THEREOF AS A VENTILATING AGENT FOR curable resins or plastisol
US5380464A (en) * 1988-05-09 1995-01-10 Dow Corning Corporation Silicone foam control composition
US4983316A (en) * 1988-08-04 1991-01-08 Dow Corning Corporation Dispersible silicone antifoam formulations
JPH0790128B2 (en) * 1989-11-08 1995-10-04 ダウコーニングアジア株式会社 Silicone antifoam composition
JPH03157106A (en) * 1989-11-16 1991-07-05 Shin Etsu Chem Co Ltd Antifoaming agent composite
DE3938109A1 (en) * 1989-11-16 1991-05-23 Goldschmidt Ag Th AGENT FOR DEFOAMING AQUEOUS WASHING FLEETS
SE9301347A0 (en) * 1992-04-27 1993-10-28 Nikko Chemical Inst Inc Anti-foaming composition of emulsion type and anti-foaming method using the same

Also Published As

Publication number Publication date
EP0658361B1 (en) 1997-04-09
DE4343185C1 (en) 1994-11-17
EP0658361A1 (en) 1995-06-21
FI945935A0 (en) 1994-12-16
JPH07194904A (en) 1995-08-01
NO943823L (en) 1995-06-19
ATE151306T1 (en) 1997-04-15
DK0658361T3 (en) 1997-10-20
NO943823D0 (en) 1994-10-10
CN1063765C (en) 2001-03-28
DE59402369D1 (en) 1997-05-15
CA2135420A1 (en) 1995-06-18
FI945935A (en) 1995-06-18
ES2100617T3 (en) 1997-06-16
CN1112586A (en) 1995-11-29
GR3023956T3 (en) 1997-09-30
JP2716667B2 (en) 1998-02-18
AU678644B2 (en) 1997-06-05

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired