EP0922068A1 - Verwendung von cashewnussschalenöl im recycling von kautschuk und wärmehärtbaren kunststoffen - Google Patents

Verwendung von cashewnussschalenöl im recycling von kautschuk und wärmehärtbaren kunststoffen

Info

Publication number
EP0922068A1
EP0922068A1 EP97934807A EP97934807A EP0922068A1 EP 0922068 A1 EP0922068 A1 EP 0922068A1 EP 97934807 A EP97934807 A EP 97934807A EP 97934807 A EP97934807 A EP 97934807A EP 0922068 A1 EP0922068 A1 EP 0922068A1
Authority
EP
European Patent Office
Prior art keywords
rubber
recycling
cashew nut
duroplastics
hcnc
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Withdrawn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
EP97934807A
Other languages
English (en)
French (fr)
Inventor
Martin Ernst Stielau
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.)
Individual
Original Assignee
Individual
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
Priority claimed from PT10190796A external-priority patent/PT101907A/pt
Priority claimed from PT10192996A external-priority patent/PT101929A/pt
Application filed by Individual filed Critical Individual
Publication of EP0922068A1 publication Critical patent/EP0922068A1/de
Withdrawn legal-status Critical Current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
    • 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
    • C08J11/18—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 organic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
    • C08L19/003—Precrosslinked rubber; Scrap rubber; Used vulcanised rubber
    • 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
    • C08J2321/00—Characterised by the use of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
    • 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

Definitions

  • the present invention relates to the field of recycling rubbers and thermosetting plastics.
  • Cashew shell oil (henceforth HCNC) is a by-product of the food industry, of the preparation of cashew nuts.
  • This liquid which is located under the shell of the nut and which is released when it is opened, is a 9: 1 mixture of a fatty acid (anacardic acid, which carries a phenolic group to the benzene ring) with a diphenol (Cardol), both with side chains with 15 carbon atoms and 27 hydrogen and one to three double bonds.
  • a fatty acid anacardic acid, which carries a phenolic group to the benzene ring
  • Cardol diphenol
  • HCNC can, at a higher or lower temperature, "melt" vulcanized recycling rubbers and other thermosets.
  • the mixture is heated by kneading at a temperature between 200 and 300 ° C, and newly crosslinkable and / or vulcanizable liquids are obtained.
  • Preparation - even when cold - of old rubber with HCNC improves - thanks to the causticity of this product - the "recasting" in new rubber.
  • This crosslinking can be carried out - as the patent application PT 101,761 teaches us - cited above - thanks to a di- and / or polyisocyanate or with sulfur or with both.
  • PT 101,761 teaches us - cited above - thanks to a di- and / or polyisocyanate or with sulfur or with both.
  • the mechanical results improve greatly, if sulfur treated with HCNC is used.
  • the acceleration and modification systems seem to react in the same way.
  • HCNC Recycled rubber can be cold mixed with HCNC, sulfur, possibly accelerators and additives, and heated to a temperature around 150 ° C for 15 min. , to obtain appreciable "jumps" between particles of old rubber and / or new rubber.
  • HCNC 100 g of HCNC are heated with 20 g of rubber powder from a car tire at 180 ° C. until the powder is "diluted" completely. The mixture is allowed to cool and 33 g of an MD1 (type 44V20 from Bayer) are added. A rubber of good elasticity and mechanical resistance is obtained.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
EP97934807A 1996-08-20 1997-08-19 Verwendung von cashewnussschalenöl im recycling von kautschuk und wärmehärtbaren kunststoffen Withdrawn EP0922068A1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
PT10190796A PT101907A (pt) 1996-08-20 1996-08-20 A utilizacao do oleo da casca de castanha de caju na qualidade de despolimerizante reticulavel no dominio das borrachas e plasticos
PT10190796 1996-08-20
PT10192996A PT101929A (pt) 1996-10-24 1996-10-24 Processo para a vulcanizacao de oleo de casca de castanha de caju e produto assim obtido
PT10192996 1996-10-24
PCT/PT1997/000006 WO1998007777A1 (fr) 1996-08-20 1997-08-19 L'utilisation de l'huile de coquille de noix de cajou dans le domaine du recyclage du caoutchouc et des plastiques thermodurcissables

Publications (1)

Publication Number Publication Date
EP0922068A1 true EP0922068A1 (de) 1999-06-16

Family

ID=26653456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97934807A Withdrawn EP0922068A1 (de) 1996-08-20 1997-08-19 Verwendung von cashewnussschalenöl im recycling von kautschuk und wärmehärtbaren kunststoffen

Country Status (6)

Country Link
EP (1) EP0922068A1 (de)
JP (1) JP2001504523A (de)
AU (1) AU3788897A (de)
BR (1) BR9711222A (de)
CA (1) CA2263990A1 (de)
WO (1) WO1998007777A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6180686B1 (en) 1998-09-17 2001-01-30 Thomas M. Kurth Cellular plastic material
US7595094B2 (en) 1998-09-17 2009-09-29 Urethane Soy Systems, Co. Vegetable oil-based coating and method for application
US20020058774A1 (en) 2000-09-06 2002-05-16 Kurth Thomas M. Transesterified polyol having selectable and increased functionality and urethane material products formed using the polyol
ES2207995B1 (es) * 2000-08-25 2005-08-16 Angel Corbera Alarcon Reciclado de neumaticos mediante revulcanizacion de la goma.
KR20020064038A (ko) * 2001-01-31 2002-08-07 금호산업 주식회사 식용오일이 함유된 고무조성물
CN101218272A (zh) 2005-03-03 2008-07-09 南达科他大豆处理机有限公司 采用氧化方法从植物油衍生的新型多元醇
JP2015117275A (ja) * 2013-12-17 2015-06-25 住化バイエルウレタン株式会社 ポリウレタン樹脂用原料としてのカシューナッツ殻液の使用

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1819416A (en) * 1928-08-08 1931-08-18 Harvel Corp Compositions of materials and method for producing them

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9807777A1 *

Also Published As

Publication number Publication date
AU3788897A (en) 1998-03-06
JP2001504523A (ja) 2001-04-03
BR9711222A (pt) 1999-08-17
WO1998007777A1 (fr) 1998-02-26
CA2263990A1 (en) 1998-02-26

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