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

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:
OSTI Identifier:
870806
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
Patent Number(s):
US 5597851
Contract Number:
AC06-76RL01830
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA
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/