Method for the addition of vulcanized waste rubber to virgin rubber products

Romine, Robert A; Snowden-Swan, Lesley J

Title: Method for the addition of vulcanized waste rubber to virgin rubber products

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Abstract

The invention is a method of using enzymes from thiophyllic microbes for selectively breaking the sulfur rubber cross-link bonds in vulcanized rubber. The process is halted at the sulfoxide or sulfone step so that a devulcanized layer is reactive with virgin rubber.

Inventors:

Romine, Robert A ^[1]; Snowden-Swan, Lesley J ^[2]

Pasco, WA
Benton City, WA

Issue Date:: 1997-01-01

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

OSTI Identifier:: 870806

Patent Number(s):: 5597851

Assignee:: Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
Y02W30/62 - Plastics recycling

C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {
C12P1/04 - by using bacteria

C - CHEMISTRY C12 - BIOCHEMISTRY C12R - PROCESSES USING MICROORGANISMS
C12R1/01 - using bacteria or actinomycetales

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
C08J7/12 - Chemical modification
C08J11/105 - {by treatment with enzymes}
C08J2321/00 - Characterised by the use of unspecified rubbers
C08J11/18 - by treatment with organic material

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DOE Contract Number:: AC06-76RL01830

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; addition; vulcanized; waste; rubber; virgin; products; enzymes; thiophyllic; microbes; selectively; breaking; sulfur; cross-link; bonds; process; halted; sulfoxide; sulfone; step; devulcanized; layer; reactive; waste rubber; vulcanized rubber; /521/435/

Citation Formats


                    Romine, Robert A, and Snowden-Swan, Lesley J. Method for the addition of vulcanized waste rubber to virgin rubber products.  United States: N. p., 1997. 
        Web.

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                    Romine, Robert A, & Snowden-Swan, Lesley J. Method for the addition of vulcanized waste rubber to virgin rubber products.  United States.

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                    Romine, Robert A, and Snowden-Swan, Lesley J. Wed .  
        "Method for the addition of vulcanized waste rubber to virgin rubber products".  United States.  https://www.osti.gov/servlets/purl/870806.

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@article{osti_870806,

  title        = {Method for the addition of vulcanized waste rubber to virgin rubber products},

  author       = {Romine, Robert A and Snowden-Swan, Lesley J},

  abstractNote = {The invention is a method of using enzymes from thiophyllic microbes for selectively breaking the sulfur rubber cross-link bonds in vulcanized rubber. The process is halted at the sulfoxide or sulfone step so that a devulcanized layer is reactive with virgin rubber.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {1}

}

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