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

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:
 [1];  [2]
  1. Pasco, WA
  2. Benton City, WA
Issue Date:
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 {
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.
Romine, Robert A, & Snowden-Swan, Lesley J. Method for the addition of vulcanized waste rubber to virgin rubber products. United States.
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.
@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}
}

Patent:

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