Invention Grant
- Patent Title: Melt processible polyureas and polyurea-urethanes, method for the production thereof and products made therefrom
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Application No.: US14001214Application Date: 2012-02-23
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Publication No.: US09957346B2Publication Date: 2018-05-01
- Inventor: Joseph Kennedy , Jungmee Kang , Gabor Erdodi
- Applicant: Joseph Kennedy , Jungmee Kang , Gabor Erdodi
- Applicant Address: US OH Akron
- Assignee: The University of Akron
- Current Assignee: The University of Akron
- Current Assignee Address: US OH Akron
- Agency: Renner Kenner Greive Bobak Taylor & Weber
- International Application: PCT/US2012/026297 WO 20120223
- International Announcement: WO2012/116164 WO 20120830
- Main IPC: C08G18/66
- IPC: C08G18/66 ; C08G18/65 ; C08G18/62 ; C08G18/10 ; C08G18/44 ; C08G18/40 ; C08G18/32 ; C08G18/48 ; C08G18/50 ; C08G18/64 ; C08G18/75 ; C08L75/04
Abstract:
A polyurea or polyurea-urethane elastomer comprises a soft polymer segment and a hard polymer segment, wherein the hard polymer segment includes polyurea groups in combination with H-bond accepting chain extenders (HACEs) to reduce the flow temperature (Tflow) while maintaining the excellent mechanical properties such that the resulting polyurea elatomer is rendered melt-processable.
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