Rubber treatment method

Details Rubber treatment method Rubber treatment method

2004-02-27

2010-06-15

Choi, Ling-Siu (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Process of treating scrap or waste product containing solid...

C521S040000, C435S262000, C435S282000

Reexamination Certificate

active

07737191

ABSTRACT:
A process and resulting product is provided in which vulcanized rubber crumb has selected chemical bonds broken and sulphur removal by biotreatment with hydrophobic bacteria, such as mycolic acid containing actinomycete bacteria of ‘mycolata’, without significant degradation of the hydrocarbon polymer. The products obtained from the use of these bacteria may be processed alone or in blends with virgin rubber and revulcanized to yield products of much higher quality than conventional reclaimed rubber materials.

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Bum et al. International Journal of Systematic Bacteriology (1999), 49, 1845-1851Gordonia desulfuricanssp. nov., a benzothiophene desulfurizing actinomycete.
Arenskotter, et al., “Taxonomic Characterization of Two Rubber Degrading Bacteria Belonging to the SpeciesGordonia polyisoprenivoransand Analysis of Hyper Variable Regions of 16S rDNA Sequences”,Fems Microbiology Letters, 205(2):277-282 (2001).
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