News
5/12/2009
Spill-Cure US patent issued
6/4/2007
New location for Ecser Rubber Inc.
11/23/2006
Spill-Cure™ Time release
11/3/2008
Spill-Cure™ Opportunities and Prospects-Asphalt
6/29/2006
A technical description of Spill-Cure™
6/29/2006
New markets and value added uses for scrap tires and scrap rubber.
3/21/2006
New use for tire rubber - Clean up oil spills!
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Ecser Holding Corporation
165 East 66th St.
New York, NY 10065
Phone:
212.737.9430
Fax:
212.208.4453
Email:
INTELLECTUAL PROPERTY
Ecser™ holds two US patents for the method and composition for the devulcanization of scrap rubber. Ecser Rubber™ holds one patent for sorbing and filtering material named Spill-Cure™.
United States Patent 7,531,579 May 12, 2009
Method of making and using sorbent and filtering material from secondary waste rubber Abstract
A method of making a sorbent from waste rubber and a method of sorbing oil using such sorbent. Approximately two pounds of modifier is added to 100 pounds of vulcanized rubber waste, the modifier comprising a mixture by weight of (i) a slightly water-soluble organic acid having a melting point of 70.degree. C. or higher representing 80%, (ii) quinine group bases representing 19% and (iii) 1% of an anti sliding ingredient such as colophony, running the mixture of rubber waste and modifier in a roll mill approximately six times to crush it and placing the crushed modified rubber particles in an extruder for 2-10 minutes at 120-150.degree. C. The sorbent can then be applied to oil to sorb six times its own weight in oil. The sorbent can be re-used two more times after extracting the oil. The sorbent is also effective at filtering oil from water. (Full text can be seen on www.uspto.gov)
United States Patent 6,387,966 May 14, 2002
Method and composition for devulcanization of waste rubber Abstract
Mechanical/chemical method and composition for de-vulcanization of rubber maintains the macromolecules, renders sulfur passive for later re-vulcanization, is cost effective, environmentally friendly and produces high quality de-vulcanized rubber to replace virgin rubber. Waste rubber is shredded, crushed and metal-removed. Modifying composition is added as the particles of shredded waste rubber are poured between two rollers that further crush the particles. The modifying composition is a mixture of (1) a proton donor that selectively breaks the sulfur bonds and renders the sulfur passive, (2) a metal oxide and (3) an organic acid that build new bonds between macromolecules for later re-vulcanization, (4) an inhibitor that prevents re-attachment of sulfur radicals with each other before the proton donor attaches itself to the sulfur and (5) a friction agent that prevents sliding of the waste rubber between the rollers. (Full text can be seen on www.uspto.gov)
United States Patent 6,541,526 April 1, 2003
Method and composition for devulcanization of waste rubber Abstract
Mechanical/chemical method and composition for de-vulcanization of rubber maintains the macromolecules, renders sulfur passive for later re-vulcanization, is cost effective, environmentally friendly and produces high quality de-vulcanized rubber to replace virgin rubber. Waste rubber is shredded, crushed and metal-removed. Modifying composition is added as the particles of shredded waste rubber are poured between two rollers that further crush the particles. The modifying composition is a mixture of (1) a proton donor that selectively breaks the sulfur bonds and renders the sulfur passive, (2) a metal oxide and (3) an organic acid that build new bonds between macromolecules for later re-vulcanization, (4) an inhibitor that prevents re-attachment of sulfur radicals with each other before the proton donor attaches itself to the sulfur and (5) a friction agent that prevents sliding of the waste rubber between the rollers. (Full text can be seen on www.uspto.gov)
Ecser™'s patented process creates a de-vulcanized rubber that can be used as a partial or complete substitute for virgin rubber. ECSER's compounding solution and technological regimes are designed to minimize a reverse vulcanization reaction during and after the production process.
United States Patent 7,531,579 May 12, 2009
Method of making and using sorbent and filtering material from secondary waste rubber Abstract
A method of making a sorbent from waste rubber and a method of sorbing oil using such sorbent. Approximately two pounds of modifier is added to 100 pounds of vulcanized rubber waste, the modifier comprising a mixture by weight of (i) a slightly water-soluble organic acid having a melting point of 70.degree. C. or higher representing 80%, (ii) quinine group bases representing 19% and (iii) 1% of an anti sliding ingredient such as colophony, running the mixture of rubber waste and modifier in a roll mill approximately six times to crush it and placing the crushed modified rubber particles in an extruder for 2-10 minutes at 120-150.degree. C. The sorbent can then be applied to oil to sorb six times its own weight in oil. The sorbent can be re-used two more times after extracting the oil. The sorbent is also effective at filtering oil from water. (Full text can be seen on www.uspto.gov)
