EP2807217A1 - Composition de mélange contenant des siloxanes à fonction amino, des particules hydrophobes et du silicone à poids moléculaire élevé ainsi que leur utilisation aux fins de traitement du cuir - Google Patents

Composition de mélange contenant des siloxanes à fonction amino, des particules hydrophobes et du silicone à poids moléculaire élevé ainsi que leur utilisation aux fins de traitement du cuir

Info

Publication number
EP2807217A1
EP2807217A1 EP12809758.1A EP12809758A EP2807217A1 EP 2807217 A1 EP2807217 A1 EP 2807217A1 EP 12809758 A EP12809758 A EP 12809758A EP 2807217 A1 EP2807217 A1 EP 2807217A1
Authority
EP
European Patent Office
Prior art keywords
methyl
leather
component
mixture composition
weight
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.)
Withdrawn
Application number
EP12809758.1A
Other languages
German (de)
English (en)
Inventor
Christian Mund
Joerg Peggau
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
Evonik Industries 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 Evonik Industries AG filed Critical Evonik Industries AG
Publication of EP2807217A1 publication Critical patent/EP2807217A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09G—POLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00—Polishing compositions
    • C09G1/06—Other polishing compositions
    • C09G1/14—Other polishing compositions based on non-waxy substances
    • C09G1/16—Other polishing compositions based on non-waxy substances on natural or synthetic resins
    • 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
    • C08L83/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes

Definitions

  • the invention relates to mixture compositions containing amino-functional siloxanes, hydrophobic particles and high molecular weight silicones and their use for leather treatment.
  • the process step of fatliquoring or hydrophobing leather but also the care treatment of leather in everyday life is essential for the equipment and the preservation of leather goods such. of bags, shoes or leather clothing.
  • the treatment agents used are intended to give the leather u.a. Cleaning resistance and water resistance but also good properties with regard to softness,
  • DD7286938 uses a silicone oil in admixture with other components
  • DE4139090 describes silicone-chain-containing copolymers for softening and hydrophobicizing leather.
  • Carboxy-functional siloxanes are disclosed in WO95 / 22627 as emulsifiers for leather water repellency emulsions.
  • EP 350240 describes the superficial coating of leather goods (leather finish) with the aid of aqueous emulsions of silane-containing copolymers.
  • DE2205143 describes mixtures of (a) 15-50% by weight Ti (OR) 4 or Zr (OR) 4 or the corresponding hydrolysates, where R is a long-chain alkyl radical, with (b) 5-70% by weight of an MQ resin and (c) 15-80% of a silicone oil and (d) 0.5-30% by weight of an aminoalkyl-substituted silane or siloxane for the treatment of leather. It describes the improvement of permanently water-repellent properties.
  • DE4126975 describes impregnating and care compositions based on fluorocarbon resins, fluorosilicones and / or organic metal compounds which are formulated in a volatile siloxane as solvent and dispersant.
  • the object of the present invention was to provide compounds for use in the leather trade, which are easy to process and produce a smooth and very pleasant feel of the leather, without losing the good effect of long-lasting water repellency.
  • blend compositions according to the invention containing amino-functional siloxanes, hydrophobic particles and high molecular weight silicones are described below by way of example, without the invention being restricted to these exemplary embodiments. If ranges, general formulas or classes of compounds are given below, these should not only be the
  • Oligomer or ordered (block oligomer) occur in these compounds.
  • compositions of amino-functional siloxanes, hydrophobic particles and high molecular weight silicone solve the disadvantages of the prior art and thus able to solve the problem set for the invention.
  • the present invention therefore provides compounding compositions as described in the claims and the use of these for leather care.
  • Mixing compositions can be processed and applied very easily.
  • Mixture compositions can be applied very homogeneously on leather. Yet another advantage of the blend compositions of the invention are their outstanding results in terms of hand properties and sheen on leather.
  • blend compositions according to the invention Another advantage of the blend compositions according to the invention is their and the formulations produced with them increased storage stability.
  • a further advantage of the mixture compositions according to the invention is that the leather hydrophobization achieved with them is long lasting and has a high cleaning resistance.
  • An object of the present invention are blending compositions containing A) 50% by weight - 96.5% by weight, preferably 65% by weight - 96.5% by weight, of at least one amino-functional siloxane,
  • the term "amino-functional siloxane” is understood to mean a siloxane which has at least one amino group.
  • amino group includes primary, secondary or tertiary amino groups and their ionic adducts with a protic reactant H + A
  • high molecular weight silicone is understood to mean a silicone which has an average molecular weight of at least 20,000 g / mol.
  • hydrophobic particles is understood as meaning organic or inorganic particles which have a greater than 50% methanol wettability.
  • amino-containing group characterizing the amino-functional siloxane can be pendant and / or terminal (alpha, omega-modification) on
  • Siloxane backbone to be bound.
  • the amino-functional siloxane of component A) is preferably one of the general formula 1:
  • R 1 independently of one another identical or different linear or branched, saturated or unsaturated hydrocarbon radicals having 1 to 30
  • R 2 independently of one another are identical or different R 1 , an alkoxy radical or a hydroxy group, preferably R 1 , in particular methyl;
  • R 3 independently of one another, identically or differently, a linear or branched hydrocarbon radical substituted by nitrogen atoms, preferably a radical of the formulas - (CH 2 ) 3 -NR 4 2 , -CH 2 -CHMe-CH 2 -NR 4 2 or - (CH 2 ) 3 NR 4 - (CH 2 ) 2 NR 4 2 ; in particular - (CH 2 ) 3 -NH 2 or - (CH 2 ) 3 NH- (CH 2 ) 2 NH 2 ;
  • R 4 independently of one another identical or different linear or branched, saturated or unsaturated hydrocarbon radicals having 1 to 22
  • b 0 to 20, preferably 0 or 2
  • e 0 to 20, preferably 0 to 10, in particular 0,
  • f 0 to 20, preferably 0 to 10, in particular 0,
  • g 0 to 20, preferably 0 to 10, in particular 0, with the proviso that at least one of the indices b, d and f ⁇ is 0.
  • At least 50%, preferably at least 70% of the radicals R 2 R 1 .
  • Condensation can be prepared, as described for example in EP1972330 (Sections 0154 and 0155), US7238768 and DE102010062676.
  • silicone of component B in particular halogen-free compounds are used.
  • a high molecular weight silicone of component B) has a molecular weight average Mw of at least 20,000 g / mol, preferably 50,000 g / mol, particularly preferably at least 100,000 g / mol.
  • the average molecular weight Mw of the high molecular weight silicone can be determined by gel permeation chromatography (GPC). For this purpose, as usual, e.g. calibrated against commercially available polystyrene standards of different molecular weights (see also standard DIN 55072-1 / ISO 13885-1).
  • the high molecular weight silicone of component B) is preferably one which has a high viscosity; In particular, it preferably has viscosities of at least 50,000 mPa.s, more preferably at least 70,000 mPa.s, more preferably at least 100,000 mPa.s, measured at 25 ° C.
  • the viscosity of the high molecular weight silicone can be determined by means of a rheometer at a shear rate of 10 s -1 at 25 ° C.
  • high molecular weight silicones are selected from the group of linear silicone oils, which preferably have an average molecular weight of more than 50,000 g / mol, or from the group of branched silicone resins, which preferably has a viscosity of more than 20,000 mPa-s, measured at 25 ° C, exhibit.
  • Preferred silicone oils are selected from the group of methyl- and / or phenyl-substituted, optionally also hydroxy-terminated polysiloxanes with middle
  • high-molecular-weight silicones of component B particular preference is given to dimethylpolysiloxane oils having viscosities of> 100 000 cSt, measured at 25.degree.
  • preferred high molecular weight silicone oils are the commercially available products SS4267 or Baysilone Oel M 2000000 (Momentive), KF-96H-300000 (Shin-Etsu), PMX-200 Silicone Fluid, 500000 cSt. (Dow Corning) and Rhodorsil oil 47 V 300000 (Bluestar).
  • Exemplary, preferred hydroxy-terminated polysiloxanes (PDM siloxanes) are the Bays products commercially available under CAS number 70131-67-8. Abhesive / Release Coat. ZW PR / OH (Momentive) or UC 107 (UChem).
  • Preferred branched silicone resins consisting essentially of R 5 2 R 6 SIOI / 2 ( "M”) - and Si0 4/2 ( “Q”) - and / or R 6 SI03 / 2 ( “T”) - units,
  • R 5 may be the same or different and is a hydrogen atom or a monovalent, optionally substituted, optionally unsaturated SiC-bonded
  • Hydrocarbon radical having 1 to 16 carbon atoms, preferably methyl and R 6 has the meaning of the radical R 5 or is an alkoxy radical having 1 to 4 carbon atoms or a hydroxy radical.
  • MQ M / (Q + T)
  • MT molar ratio of M to Q and T units
  • the molar ratio of M to Q and T units is preferably in the range of 0.5 / 1 to 1 , 5/1, in particular in the range of 0.5 / 1 to 1, 0/1, the quotient of T to M units preferably in the range of 0/1 to 0.4 / 1, in particular 0/1
  • Silicone resins may also contain up to 10% by weight of free hydroxy or alkoxy groups.
  • Exemplary, preferred silicone resins are the commercially available products PA 51 (Dow Corning) or Wacker MQ 803 TF (Wacker).
  • the high molecular weight silicones can be prepared by methods such as described in W. Noll, Chemistry and Technology of Silicones, Verlag Chemie, Weinheim, 1968.
  • the high molecular weight silicones can also be directly penetrated in an emulsion
  • Hydrophobic particles which have a maximum particle size distribution in the range from 0.5 to 30 ⁇ m, preferably 0.7 to 15 ⁇ m, in particular 0.8 to 1 ⁇ m, are preferably used as component C).
  • hydrophobic particles which have a methanol wettability of greater than 55%, preferably greater than 60%, particularly preferably greater than 65%, in particular greater than 70%.
  • the particle size distribution of the particles can be determined with a measuring system such as the company Sympatec, consisting of the modules VIBRI, RODOS and HELOS.
  • the particles are predispersed by vibration and with compressed air, preferably with an overpressure of 2 to 3 bar, dispersed and by a
  • Suitable inorganic particles are hydrophobic or hydrophobized metal oxides such as silicas and alumina, metal soaps, alkaline earth carbonates or similar finely divided solids known in the art.
  • organic fine particulate substances known alkaline earth salts of long-chain fatty acids having 12 to 22 carbon atoms, the amides of these fatty acids, micronized waxes such as e.g.
  • polyethylene, PTFE waxes and their copolymers, and mixtures of such waxes are used, which are solid under conditions of use.
  • oligoureas can be used, as described by way of example in DE 19917186.
  • Particularly suitable hydrophobic particles are hydrophobized metal oxides such as
  • Silica or alumina in particular with a methanol wettability of greater than 55%, and organic waxes with a melting point> 80 °.
  • hydrophobized metal oxides are hydrophobized, pyrogenically prepared silicas, such as those sold under the trade name "AEROSIL R” by EVONIK INDUSTRIES AG (eg AEROSIL R 972, AEROSIL R 805, AEROSIL R 8200, AEROSIL RX 200).
  • AEROSIL R hydrophobized, pyrogenically prepared silicas, such as those sold under the trade name "AEROSIL R” by EVONIK INDUSTRIES AG (eg AEROSIL R 972, AEROSIL R 805, AEROSIL R 8200, AEROSIL RX 200).
  • Preferred organic waxes are, for example
  • Polyethylene-based waxes LANCO WAX PE 1544, LUBRIZOL
  • amide waxes e.g., LICOWAX C P, CLARIANT
  • partially fluorinated waxes such as VESTOWAX FM 1012, EVONIK INDUSTRIES
  • mixture compositions are preferred according to the invention in which
  • Component A) is selected from amino-functional siloxanes of formula 1, wherein R 1 is methyl and R 3 is - (CH 2 ) 3 -NH 2 or - (CH 2 ) 3 NH- (CH 2 ) 2 NH 2 , and component B) is selected from the group of methyl- and / or phenyl-substituted, optionally hydroxy-terminated polysiloxanes with middle
  • Component C) is selected from hydrophobic particles which have a maximum particle size distribution in the range from 0.7 to 15 ⁇ m and a methanol wettability of greater than 55%.
  • blend compositions of the present invention are advantageously useful for the care of leather and for the manufacture of leather care formulations.
  • Exemplary leather goods are bags, shoes, leather clothing, hats, furniture,
  • Blend composition of the present invention for leather itself is understood here to mean a formulation which serves the purpose of preserving an object in its original form, the effects of external influences (eg time, light, temperature, pressure, contamination, chemical reaction with others, with the object contacting reactive compounds) such as aging, fouling, material fatigue,
  • Preferred leather care formulations are shoe creams, impregnating agents or leather cleaners.
  • the care formulations according to the invention are preferably in the form of aqueous dispersions, in particular emulsions.
  • the care formulations according to the invention preferably comprise water, at least one emulsifier and optionally at least one organic solvent and optionally at least one preservative.
  • Emulsifiers preferred in this context are selected from
  • Fatty alcohol ethoxylates and polyglycerol esters in particular fatty alcohol ethoxylates.
  • emulsifiers representatives of the Tergitol product line from Dow Chemicals may be used, e.g. Tergitol 15-S-7, Tergitol TMN-6 or Tergitol 15-S-5.
  • care formulations according to the invention additionally contain one or more ingredients from the group of surfactants, builders, perfumes,
  • Perfume carriers dyes, antimicrobial agents, germicides, fungicides,
  • the leather care formulations according to the invention may contain 0.001 and 90, more preferably 0.01 to 45 wt .-% of one or more of the other ingredients mentioned herein, wherein the wt .-% refer to the entire formulation.
  • surfactants which can be used are described in WO 2007/1 15872, page 17, line 28 to page 21, line 24.
  • builders are described in WO 2007/1 15872, page 22, line 7 to page 25, line 26.
  • antimicrobial agents germicides, fungicides, antioxidants,
  • UV absorbers are described in WO 2007/1 15872 on pages 28, line 14 to page 30, line 22. Their explicit explicit disclosure content becomes part of this disclosure by this reference.
  • Example 1 mixture of amino-functional polydimethylsiloxane of formula II with a silicone oil and 300000 cSt Aerosit ® RX 200:
  • Example 2 mixture of amino-functional polydimethylsiloxane of formula III with an emulsion of silicone oil and 300000 cSt Vestowax FM ® 1012:
  • Example 3 Mixture of amino-functional polydimethylsiloxane of the formula IV with a silicone oil 200,000 cSt and Aerosif RX 200:
  • an aminofunctional polydimethylsiloxane according to formula IV (prepared via alkaline equilibration of 1,3-bis (aminopropyl) tetramethyldisiloxane and decamethylcyclopentasiloxane D5) is mixed with 22% of a polydimethylsiloxane having a viscosity of 100,000 cSt (KF-96L-100,000, Shin-Etsu) and with 3% of a hydrophobic silica (Aerosil ® RX 200, Evonik Industries AG) blended.
  • Example 4 Mixture of amino-functional polydimethylsiloxane of the formula V with an MQ resin PA 51 and Aerosif RX 200: 69% of an amino-functional polydimethylsiloxane according to formula V (prepared similarly to example 4 from DE102010062676.7 but without gunidinomodified silane and with Dynasylan 141 1 ( Evonik Industries AG)) is mixed (with 26% of an MQ resin PA 51, Dow Corning) and 5% of a hydrophobic silica (Aerosil ® RX 200, Evonik Industries AG).
  • Examples 1 -7 were diluted with mineral spirits to 10% active ingredients (aminosiloxane + silicone oil + hydrophobic particles). Of the solutions / mixtures obtained, 1 g per 2 g grained full chrome leather was spread evenly. The treated leather samples were allowed to dry under controlled conditions (23 ° C, 50% relative humidity) for 3 days.
  • Inventive Examples 1 to 4 perform better on all the handle properties of the leather than Comparative Examples 5, 6 and 7. Especially in softness and
  • Tab. 2 Mixtures which serve, for example, as 10% dilutions with mineral spirits for leather treatment.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

L'invention concerne des compositions de mélanges contenant des siloxanes à fonction amino, des particules hydrophobes et du silicone à poids moléculaire élevé, ainsi que leur utilisation aux fins de traitement du cuir.
EP12809758.1A 2012-01-27 2012-12-18 Composition de mélange contenant des siloxanes à fonction amino, des particules hydrophobes et du silicone à poids moléculaire élevé ainsi que leur utilisation aux fins de traitement du cuir Withdrawn EP2807217A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012201167A DE102012201167A1 (de) 2012-01-27 2012-01-27 Mischungszusammensetzung enthaltend aminofunktionelle Siloxane, hydrophobePartikel und hochmolekulare Silicone sowie dessen Verwendung zur Lederbehandlung
PCT/EP2012/075881 WO2013110413A1 (fr) 2012-01-27 2012-12-18 Composition de mélange contenant des siloxanes à fonction amino, des particules hydrophobes et du silicone à poids moléculaire élevé ainsi que leur utilisation aux fins de traitement du cuir

Publications (1)

Publication Number Publication Date
EP2807217A1 true EP2807217A1 (fr) 2014-12-03

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Application Number Title Priority Date Filing Date
EP12809758.1A Withdrawn EP2807217A1 (fr) 2012-01-27 2012-12-18 Composition de mélange contenant des siloxanes à fonction amino, des particules hydrophobes et du silicone à poids moléculaire élevé ainsi que leur utilisation aux fins de traitement du cuir

Country Status (6)

Country Link
US (1) US20150008355A1 (fr)
EP (1) EP2807217A1 (fr)
CN (1) CN103998526A (fr)
BR (1) BR112014018094A2 (fr)
DE (1) DE102012201167A1 (fr)
WO (1) WO2013110413A1 (fr)

Families Citing this family (6)

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CN103667549A (zh) * 2013-11-22 2014-03-26 南通信一服饰有限公司 一种皮衣护理光亮剂
EP3243858B1 (fr) 2016-05-11 2019-03-27 Basf Se Polymères réticulés, leurs procédés de fabrication et utilisation
EP3541986B1 (fr) * 2016-11-16 2020-06-17 Wacker Chemie AG Composition contenant des composés organosiliciés à fonction bêta-cétocarbonyle
CN106978103A (zh) * 2017-04-07 2017-07-25 德山化工（浙江）有限公司 硅油处理热解法二氧化硅、其制备方法及应用
US12577154B2 (en) * 2019-12-11 2026-03-17 Wacker Chemie Ag Hydrophobic mineral insulating materials
CN115216566B (zh) * 2022-06-27 2023-11-07 晋江康邦拓新材料科技有限公司 一种防泼水易去污皮革及其加工方法

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Also Published As

Publication number Publication date
DE102012201167A1 (de) 2013-08-01
US20150008355A1 (en) 2015-01-08
CN103998526A (zh) 2014-08-20
BR112014018094A2 (pt) 2017-06-27
WO2013110413A1 (fr) 2013-08-01

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