Invention Grant
- Patent Title: Process for devulcanizing rubber
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Application No.: US15392031Application Date: 2016-12-28
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Publication No.: US10077350B2Publication Date: 2018-09-18
- Inventor: Hao Wang , Michael J. Hubbard
- Applicant: FIRESTONE BUILDING PRODUCTS CO., LLC
- Applicant Address: US IN Indianapolis
- Assignee: Firestone Building Products Co., LLC
- Current Assignee: Firestone Building Products Co., LLC
- Current Assignee Address: US IN Indianapolis
- Agent Brian D. McAlhaney; Arthur M. Reginelli
- Main IPC: C08J11/10
- IPC: C08J11/10 ; B29B17/04 ; C08J11/12 ; B29K23/00 ; B29L31/10 ; B29L7/00
Abstract:
A process for devulcanizing EPDM rubber comprising the step of introducing sulfur-cured EPDM to an extruder, introducing from about 0.5 to about 20 wt % scavenging agent, based upon the total weight of the EPDM and scavenging agent, and mixing and masticating the EPDM at a temperature sufficient to at least partially devulcanize the sulfur-cured EPDM.
Public/Granted literature
- US20170107347A1 PROCESS FOR DEVULCANIZING RUBBER Public/Granted day:2017-04-20
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