发明名称 |
METHOD AND COMPOSITION FOR DEVULCANIZATION OF WASTE RUBBER |
摘要 |
<p>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. The particles are subjected to at least ten sets of rollers.</p> |
申请公布号 |
EP1401932(A4) |
申请公布日期 |
2004.10.13 |
申请号 |
EP20020737003 |
申请日期 |
2002.05.20 |
申请人 |
ECSER HOLDING CORPORATION |
发明人 |
GOLDSHTEIN, VADIM;KOPYLOV, MICHAEL |
分类号 |
B29B17/02;B29B17/04;B29K21/00;C08J11/04;C08J11/10;C08J11/18;(IPC1-7):C08J11/04 |
主分类号 |
B29B17/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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