EP1896521A1 - Resines de silicone ayant une reactivite definie - Google Patents

Resines de silicone ayant une reactivite definie

Info

Publication number
EP1896521A1
EP1896521A1 EP06762139A EP06762139A EP1896521A1 EP 1896521 A1 EP1896521 A1 EP 1896521A1 EP 06762139 A EP06762139 A EP 06762139A EP 06762139 A EP06762139 A EP 06762139A EP 1896521 A1 EP1896521 A1 EP 1896521A1
Authority
EP
European Patent Office
Prior art keywords
hcl
radical
aryloxy
groups
units
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Withdrawn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
EP06762139A
Other languages
German (de)
English (en)
Inventor
Frank Sandmeyer
Hans Mayer
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of EP1896521A1 publication Critical patent/EP1896521A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes
    • 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
    • C08G77/04—Polysiloxanes
    • C08G77/38—Polysiloxanes modified by chemical after-treatment
    • 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
    • C08G77/04—Polysiloxanes
    • 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
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes
    • C08G77/08—Preparatory processes characterised by the catalysts used

Definitions

  • the invention relates to silicone resins and a process for their preparation.
  • the reactivity of a silicone resin can be controlled by exchanging the alkoxy groups with silicon-bonded hydroxy groups in a silicone resin containing inert alkoxy groups by treatment with water vapor.
  • the object of the invention is to improve the state of the art, in particular to produce silicone resins whose reactivity is controlled by a parameter which is independent of the silanol content of the silicone resin.
  • the object is achieved by the invention.
  • the invention relates to a silicone resin composed of repeating units of the general formula (1)
  • a 1 represents the same or different hydrogen, alkyl, cycloalkyl, aryl or alkoxy radicals having an aliphatic linear or branched or a cycloaliphatic alkyl radical or an aryloxy radical, or denotes a functional radical which contains up to 18 C atoms and additionally one or more identical or different heteroatoms selected from O-, S, Si,
  • Cl, F, Br, P or N atoms may contain,
  • RA is identical or different aliphatic or cycloaliphatic alkoxy, aryloxy or hydroxy or a
  • Residual Al means where at least either T or Q units or both must be present and besides M and / or D units may be present and the silicone resin is characterized as containing at least 1 ppm HCl.
  • Preferred silicone resins are those having a weight average molecular weight between 800 and 500,000.
  • the amount of HCl is adjusted according to the desired reactivity, so according to the invention at least 1 ppm of HCl is present, preferably, the HCl amount of 1 ppm to 10 wt.% Based on the resin. However, preferably 1 ppm to 5 wt.%, Particularly preferably 1 ppm to 3 wt.% Contains amounts of HCl.
  • Another object of the invention is a process for the preparation of a silicone resin, wherein the synthesis is carried out starting from silanes and / or siloxanes containing hydrolyzable groups, and the synthesis comprises the steps of hydrolysis and condensation and either the hydrolyzable groups are silicon-bonded chlorine atoms or silicon-bonded alkoxy groups , Aryloxy or hydroxy groups, wherein gaseous or dissolved in water HCl is used in a step of the resin preparation and the HCl amount is adjusted according to the desired reactivity and too much metered HCl is removed.
  • the overdosed amount of HCl may be neutralized by other techniques known in the art such as gas stripping by vacuum or heating in the cases where the acid is a gaseous product such as HCl.
  • the silicone resins according to the invention are preferably used as binders for the production of coatings.
  • the silicone resins according to the invention surprisingly have, depending on the HCl content, a more or less high reactivity. They provide coatings in which they are used as binders, an excellent resistance, for example, to weathering, attack by chemical influences and UV radiation. Likewise, very good water resistance and low tendency to fouling can be achieved with these coatings.
  • hydrophobic copolymers can be used to produce porous coatings with a pigment volume concentration above the critical pigment volume concentration, which are characterized by excellent gas and water vapor permeability combined with high water repellency.
  • Silicone resins are also used as additive additions to preparations for coatings or other applications, as well as without further additives as pure on substrates film-forming or curing in blocks or other arbitrary forms material.
  • Control of rheological properties Control of mechanical properties, e.g. Flexibility, scratch resistance, elasticity, extensibility, bendability, tear behavior, rebound behavior, hardness, density, tear propagation resistance, compression set, behavior at different temperatures, coefficient of expansion, abrasion resistance and other properties such as thermal conductivity, flammability, gas permeability, resistance to water vapor, hot air, chemicals, weathering and radiation, the sterilizability, of
  • Solid bodies or films obtainable from the preparation containing the dispersion according to the invention
  • Control of electrical properties such as dielectric loss factor, dielectric strength, dielectric constant, tracking resistance, Lichbogenbe pretechnik, surface resistance, specific breakdown resistance,
  • silicone resins according to the invention allow the above-described properties to be manipulated are the preparation of coating materials and impregnations and coatings and coatings to be obtained therefrom on substrates, such as metal, glass, wood, mineral substrate, synthetic and natural fibers for production of textiles, carpets,
  • the silicone resins according to the invention can be incorporated in liquid or in hardened solid form in elastomer compositions. Here, they may be used for the purpose of enhancing or improving other performance characteristics such as control of transparency, heat resistance, yellowing tendency, weathering resistance.
  • a methyl silicone resin composed of 87% units of the formula Me-Si (O) 3/2 and 13% units of the formula Me2Si (O) 2/2, which additionally contains 5.8% by weight of ethoxy groups and 0.9

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Silicon Polymers (AREA)

Abstract

La présente invention concerne des résines de silicone préparées à partir d'unités récurrentes de formule générale (1) [A<SUP>1</SUP> <SUB>z</SUB>R
EP06762139A 2005-06-30 2006-06-22 Resines de silicone ayant une reactivite definie Withdrawn EP1896521A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005030579A DE102005030579A1 (de) 2005-06-30 2005-06-30 Siliconharze mit definierter Reaktivität
PCT/EP2006/006021 WO2007003277A1 (fr) 2005-06-30 2006-06-22 Resines de silicone ayant une reactivite definie

Publications (1)

Publication Number Publication Date
EP1896521A1 true EP1896521A1 (fr) 2008-03-12

Family

ID=37056763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762139A Withdrawn EP1896521A1 (fr) 2005-06-30 2006-06-22 Resines de silicone ayant une reactivite definie

Country Status (7)

Country Link
US (1) US20100160590A1 (fr)
EP (1) EP1896521A1 (fr)
JP (1) JP2008546896A (fr)
KR (1) KR20080017434A (fr)
CN (1) CN101208374A (fr)
DE (1) DE102005030579A1 (fr)
WO (1) WO2007003277A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6328920B2 (ja) * 2013-12-12 2018-05-23 大日本塗料株式会社 セメント瓦の製造方法
EP3401353B1 (fr) * 2017-05-08 2021-06-23 Evonik Operations GmbH Mélanges de siloxanes ramifiés-cycliques de type d/t et leurs dérivés
CN107602861B (zh) * 2017-08-28 2021-01-12 哈尔滨工业大学无锡新材料研究院 一种水性阻燃含氟硅油及其制备方法
EP3467006B1 (fr) * 2017-10-09 2022-11-30 Evonik Operations GmbH Mélanges de siloxanes ramifiés-cycliques de type d/t et leurs produits secondaires

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832794A (en) * 1952-11-05 1958-04-29 Allied Chem & Dye Corp Hydrolysis of organosilanes
FR1472047A (fr) * 1965-06-29 1967-03-10 Soc Ind Des Silicones Polycondensats de silanes et procédé de préparation desdits polycondensats
US5457220A (en) * 1994-04-29 1995-10-10 General Electric Company Process for the production of crosslinked siloxanes by disproportionation
DE19800023A1 (de) * 1998-01-02 1999-07-08 Huels Silicone Gmbh Kontinuierliches Verfahren zur Herstellung von Polyorganosiloxanen
JP2000191792A (ja) * 1998-12-25 2000-07-11 Seiwa Kasei:Kk ポリシロキサン粒子
KR100740804B1 (ko) * 2003-06-26 2007-07-19 샌트랄 글래스 컴퍼니 리미티드 유기-무기 하이브리드 글래스상 물질 및 그 제조 방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007003277A1 *

Also Published As

Publication number Publication date
KR20080017434A (ko) 2008-02-26
US20100160590A1 (en) 2010-06-24
JP2008546896A (ja) 2008-12-25
CN101208374A (zh) 2008-06-25
WO2007003277A1 (fr) 2007-01-11
DE102005030579A1 (de) 2007-01-04

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