RU95110768A - Process for regenerating elastomeric material and process for manufacturing products therefrom - Google Patents

Process for regenerating elastomeric material and process for manufacturing products therefrom

Info

Publication number
RU95110768A
RU95110768A RU95110768/04A RU95110768A RU95110768A RU 95110768 A RU95110768 A RU 95110768A RU 95110768/04 A RU95110768/04 A RU 95110768/04A RU 95110768 A RU95110768 A RU 95110768A RU 95110768 A RU95110768 A RU 95110768A
Authority
RU
Russia
Prior art keywords
vulcanized
sulfur
mixture
rubber
network
Prior art date
Application number
RU95110768/04A
Other languages
Russian (ru)
Other versions
RU2219199C2 (en
Inventor
Балачандра Чакингал Секхар
My]
В.А. Кормер
Э.Н. Сотникова
Ru]
В.П. Миронюк
Л.Н. Трунова
Н.А. Никитина
Original Assignee
Эстиай-Кей Полимерс Эсдиэн Биашди (My)
ЭсТиАй-Кей Полимерс Эсдиэн Биашди
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 Эстиай-Кей Полимерс Эсдиэн Биашди (My), ЭсТиАй-Кей Полимерс Эсдиэн Биашди filed Critical Эстиай-Кей Полимерс Эсдиэн Биашди (My)
Publication of RU95110768A publication Critical patent/RU95110768A/en
Application granted granted Critical
Publication of RU2219199C2 publication Critical patent/RU2219199C2/en

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
    • C08J11/28—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 by treatment with organic compounds containing nitrogen, sulfur or phosphorus
    • 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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

FIELD: recirculation of worn sulfur-vulcanized elastomeric materials. SUBSTANCE: chemical mixture is prepared from one or more chemical compounds which are capable of performing functions of rubber vulcanization accelerator, and one or more activators capable of initiating proton exchange at temperatures lower than 70 C and thus opening or disrupting vulcanized network of sulfur-vulcanized elastomeric material for obtaining regenerated sulfur- vulcanized electromeric material. Mixture comprises zinc salt of dimethyl dithiocarbamate and merceptobenzothiazole at molar ratio of 1:1 to 1:12, preferably dispersed in diols and activated in the presence of stearic acid, zinc oxide and sulfur. The mixture is then mixed with vulcanized elastomeric crumb at concentration of 6 parts of binder per 100 parts of rubber crumb in disintegrator which disrupts effectively the vulcanized network and renders chemical compound ready for molding and vulcanization. EFFECT: regenerated rubber mix shows satisfactory physical and dynamic properties.

Claims (1)

Способ рециркуляции изношенных вулканизированных серой эластомерных материалов, предусматривающий пластикацию указанных эластомерных материалов при температурах ниже 50 oС в новую химическую смесь, которая способна инициировать обмен протонов контролируемым образом и посредством этого открывать или разрывать вулканизированную сеть эластомерных материалов. Новая химическая смесь приготовлена из одного или нескольких химических соединений, которые способны осуществлять функции ускорителя вулканизации резины, и одного или нескольких активаторов, способных инициировать обмен протонов при температурах ниже 70 oС и посредством этого открывать или разрывать вулканизированную сеть вулканизированного серой эластомерного материала для получения вулканизируемого серой регенерированного эластомерного материала. Предпочтительная смесь содержит цинковую соль диметилдитиокарбамата и меркаптобензотиазола в молярном соотношении 1:1 - 12, преимущественно диспергированную в диолах и активированную в присутствии стеариновой кислоты, оксида цинка и серы. После этого смесь смешивается с вулканизированной эластомерной крошкой в концентрации 6 мас. ч. связующего на 100 ч резиновой крошки в дезинтеграторе, который эффективно разрывает вулканизированную сеть и делает химическое соединение готовым для формования и вулканизации. Полученная рециркулированная резиновая смесь показывает удовлетворительный уровень физических и динамических характеристик. Такие смеси могут быть использованы непосредственно для изготовления формованных изделий или могут подмешиваться к свежим смесям для изготовления автомобильных шин, а также могут использоваться в смежных областях.A method for recycling worn sulfur vulcanized elastomeric materials, which involves plasticizing said elastomeric materials at temperatures below 50 ° C. into a new chemical mixture that is capable of initiating proton exchange in a controlled manner and thereby open or break a vulcanized network of elastomeric materials. A new chemical mixture is prepared from one or more chemical compounds that can act as a rubber vulcanization accelerator, and one or more activators capable of initiating proton exchange at temperatures below 70 o C and thereby open or break a vulcanized network of sulfur-vulcanized elastomeric material to obtain a vulcanizable sulfur regenerated elastomeric material. The preferred mixture contains the zinc salt of dimethyldithiocarbamate and mercaptobenzothiazole in a molar ratio of 1: 1 to 12, mainly dispersed in diols and activated in the presence of stearic acid, zinc oxide and sulfur. After that, the mixture is mixed with vulcanized elastomeric chips in a concentration of 6 wt. hours binder for 100 hours of rubber crumb in a disintegrator, which effectively breaks the vulcanized network and makes the chemical compound ready for molding and vulcanization. The resulting recycled rubber composition shows a satisfactory level of physical and dynamic characteristics. Such mixtures can be used directly for the manufacture of molded products or can be mixed with fresh mixtures for the manufacture of car tires, and can also be used in related fields.
RU95110768A 1994-06-25 1995-06-23 Method of preparing curable elastomer material and a method for manufacture of products therefrom RU2219199C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
MYPI9401654 1994-06-25
MY9401654 1994-06-25
EP95301399.2 1995-03-03

Publications (2)

Publication Number Publication Date
RU95110768A true RU95110768A (en) 1997-05-10
RU2219199C2 RU2219199C2 (en) 2003-12-20

Family

ID=19749697

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95110768A RU2219199C2 (en) 1994-06-25 1995-06-23 Method of preparing curable elastomer material and a method for manufacture of products therefrom

Country Status (8)

Country Link
KR (1) KR100386192B1 (en)
CN (1) CN1118791A (en)
CA (1) CA2134186A1 (en)
MD (1) MD1369C2 (en)
RU (1) RU2219199C2 (en)
TR (1) TR199500909A2 (en)
TW (1) TW289026B (en)
ZA (1) ZA955284B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2618766C2 (en) * 2012-08-31 2017-05-11 Континенталь Райфен Дойчланд Гмбх Process for regenerating sulphur-crosslinked rubber vulcanizates to regenerates

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101967451B1 (en) 2016-11-17 2019-04-10 주식회사 남명 Composite molding method using ethylene-propylene rubber waste scrap and waste fiber

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211676A (en) * 1977-06-07 1980-07-08 Bridgestone Tire Company Limited Process for reclaiming scrap vulcanized rubber
SU956297A1 (en) * 1981-03-27 1982-09-07 Ярославский политехнический институт Rubber disintegration method
SU1620454A1 (en) * 1987-07-13 1991-01-15 Предприятие П/Я А-3832 Composition for producing regenerate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2618766C2 (en) * 2012-08-31 2017-05-11 Континенталь Райфен Дойчланд Гмбх Process for regenerating sulphur-crosslinked rubber vulcanizates to regenerates

Also Published As

Publication number Publication date
RU2219199C2 (en) 2003-12-20
CN1118791A (en) 1996-03-20
MD1369C2 (en) 2000-11-30
TW289026B (en) 1996-10-21
KR100386192B1 (en) 2003-08-09
ZA955284B (en) 1996-12-27
MD1369B2 (en) 1999-12-31
TR199500909A2 (en) 1997-03-21
CA2134186A1 (en) 1995-12-26
KR960000979A (en) 1996-01-25

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20040624