Invention Grant
US08741202B2 Obtaining melt viscosity stability of polyoxymethylene compositions
有权
获得聚甲醛组合物的熔体粘度稳定性
- Patent Title: Obtaining melt viscosity stability of polyoxymethylene compositions
- Patent Title (中): 获得聚甲醛组合物的熔体粘度稳定性
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Application No.: US13703066Application Date: 2011-06-27
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Publication No.: US08741202B2Publication Date: 2014-06-03
- Inventor: Ramabhadra Ratnagiri , Henry Keith Chenault
- Applicant: Ramabhadra Ratnagiri , Henry Keith Chenault
- Applicant Address: US DE Wilmington
- Assignee: E I du Pont de Nemours and Company
- Current Assignee: E I du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Agent Loretta Smith; Otha Weaver
- International Application: PCT/US2011/041972 WO 20110627
- International Announcement: WO2011/163658 WO 20111229
- Main IPC: B29C47/00
- IPC: B29C47/00
Abstract:
Processes for improving melt flow properties of molten compositions with polyoxymethylene polymers and polymer/polyol additives having a certain core-link-arm structure, which include: obtaining melt viscosity stability while improving notched Izod, decreasing relative apparent capillary melt viscosity, and increasing elongation at break relative to molten compositions of polyoxymethylene polymers without the polymer/polyol additives.
Public/Granted literature
- US20130175724A1 Obtaining Melt Viscosity Stability of Polyoxymethylene Compositions Public/Granted day:2013-07-11
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