ATE154374T1 - Verfahren zur wiedergewinnung von polysiloxanabfällen und so hergestellte produkte - Google Patents

Verfahren zur wiedergewinnung von polysiloxanabfällen und so hergestellte produkte

Info

Publication number
ATE154374T1
ATE154374T1 AT92105759T AT92105759T ATE154374T1 AT E154374 T1 ATE154374 T1 AT E154374T1 AT 92105759 T AT92105759 T AT 92105759T AT 92105759 T AT92105759 T AT 92105759T AT E154374 T1 ATE154374 T1 AT E154374T1
Authority
AT
Austria
Prior art keywords
polysiloxana
recovering
waste
products produced
scrap
Prior art date
Application number
AT92105759T
Other languages
English (en)
Inventor
Thomas W Greenlee
Original Assignee
Tremco Inc
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 Tremco Inc filed Critical Tremco Inc
Application granted granted Critical
Publication of ATE154374T1 publication Critical patent/ATE154374T1/de

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
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/21—Cyclic compounds having at least one ring containing silicon, but no carbon in the ring
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Silicon Polymers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
AT92105759T 1991-07-18 1992-04-03 Verfahren zur wiedergewinnung von polysiloxanabfällen und so hergestellte produkte ATE154374T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/732,279 US5110972A (en) 1991-07-18 1991-07-18 Process for recycling silicone scrap and products relating thereto

Publications (1)

Publication Number Publication Date
ATE154374T1 true ATE154374T1 (de) 1997-06-15

Family

ID=24942915

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92105759T ATE154374T1 (de) 1991-07-18 1992-04-03 Verfahren zur wiedergewinnung von polysiloxanabfällen und so hergestellte produkte

Country Status (4)

Country Link
US (1) US5110972A (de)
EP (1) EP0523323B1 (de)
AT (1) ATE154374T1 (de)
DE (1) DE69220294D1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474681A (en) * 1992-03-31 1995-12-12 Inrad Synthesis of inorganic membranes
US5618435A (en) * 1992-03-31 1997-04-08 Inrad Synthesis of inorganic membranes including metals
US5779904A (en) * 1992-03-31 1998-07-14 Inrad Synthesis of inorganic membranes on supports
DE4300168A1 (de) * 1993-01-07 1994-07-14 Penn White Ltd Depolymerisierungsmittel und Depolymerisierungsverfahren für Silicone
US5616646A (en) * 1994-11-07 1997-04-01 Genesee Polymers Corporation Restructuring silicone rubber to produce fluid or grease
DE19502393A1 (de) * 1995-01-26 1996-08-01 Wacker Chemie Gmbh Depolymerisation von additionsvernetztem Silikonkautschukvulkanisat
US5491249A (en) * 1995-04-20 1996-02-13 Hercules Incorporated Process for preparing cyclic polysiloxanes from linear polysiloxanes
FR2733988B1 (fr) * 1995-05-11 1997-08-01 Rhone Poulenc Chimie Procede de fabrication de cyclosiloxanes par depolymerisation de polysiloxanes
DE19521009A1 (de) * 1995-06-08 1996-12-12 Wacker Chemie Gmbh Kontinuierlicher thermischer Abbau von Organopolysiloxanen
AU6559996A (en) * 1996-09-13 1998-03-19 Huntsman, Peter Harold Process for the recovery of methyl polysiloxanes in the form of methyl cyclosiloxanes
US9623346B2 (en) 2010-08-02 2017-04-18 Momentive Performance Materials Inc. Compositions and methods for separating emulsions using the same
WO2014130948A1 (en) * 2013-02-25 2014-08-28 Dow Corning Corporation Method of recycling silicone waste with the use of organic polymer and depolymerization catalyst
CN106008587A (zh) * 2016-06-06 2016-10-12 湖北新海鸿化工有限公司 采用硅橡胶边角料生产二甲基环硅氧烷的方法
MY202499A (en) 2019-03-05 2024-05-01 Wacker Chemie Ag Recycling of materials containing organosilicon compounds
EP3744774B1 (de) 2019-05-28 2021-09-01 Evonik Operations GmbH Verfahren zum recycling von silikonen
US11732092B2 (en) * 2020-10-19 2023-08-22 Evonik Operations Gmbh Upcycling process for processing silicone wastes
US12060460B2 (en) * 2021-04-29 2024-08-13 Evonik Operations Gmbh Process for producing endcapped, liquid siloxanes from silicone wastes
WO2024227655A1 (en) 2023-05-03 2024-11-07 Evonik Operations Gmbh Method for the preparation of siloxanes
WO2024227761A1 (de) 2023-05-03 2024-11-07 Evonik Operations Gmbh Verfahren zur herstellung von cyclosiloxanen aus silikonabfällen
KR20260003231A (ko) 2023-05-03 2026-01-06 에보니크 오퍼레이션즈 게엠베하 폴리디메틸실록산의 재생에 기반하는 중합체 발포체를 위한 안정화제
CN121057769A (zh) 2023-05-03 2025-12-02 赢创运营有限公司 基于聚二甲基硅氧烷回收的聚合物泡沫稳定剂
FR3150519A1 (fr) 2023-06-28 2025-01-03 Universite Claude Bernard Lyon 1 Procédé de valorisation des déchets de silicone élastomère pour la production de matériaux silicone recyclés
EP4549504A1 (de) 2023-11-05 2025-05-07 Universität Hamburg Verfahren zur depolymerisation von silikon

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE558079A (de) * 1956-06-06
BE789272A (fr) * 1971-09-29 1973-03-26 Wacker Chemie Gmbh Procede de preparation d'organosiloxanes
DE2521742C3 (de) * 1975-05-15 1978-12-21 Wacker-Chemie Gmbh, 8000 Muenchen Verfahren zur Herstellung von Organosiloxanen
DE2630744C3 (de) * 1976-07-08 1979-05-23 Wacker-Chemie Gmbh, 8000 Muenchen Verfahren zur Umwandlung von Organosiloxanen
DE2839652A1 (de) * 1978-09-12 1980-03-20 Wacker Chemie Gmbh Verfahren zum herstellen von cyclischen dimethylpolysiloxanen
US4764631A (en) * 1988-01-15 1988-08-16 Dow Corning Corporation Preparation of cyclopolydiorganosiloxanes via vapor phase rearrangement

Also Published As

Publication number Publication date
EP0523323B1 (de) 1997-06-11
DE69220294D1 (de) 1997-07-17
US5110972A (en) 1992-05-05
EP0523323A1 (de) 1993-01-20

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Legal Events

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