Invention Grant
US09168677B2 Controlling moisture in and plasticization of bioresorbable polymer for melt processing
有权
控制生物可吸收聚合物的水分和塑化，用于熔体加工
- Patent Title: Controlling moisture in and plasticization of bioresorbable polymer for melt processing
- Patent Title (中): 控制生物可吸收聚合物的水分和塑化，用于熔体加工
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Application No.: US14311175Application Date: 2014-06-20
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Publication No.: US09168677B2Publication Date: 2015-10-27
- Inventor: Bethany Steichen , Stephen Pacetti , Manish Gada , Thierry Glauser , Lothar Kleiner , Yunbing Wang , James Oberhauser , Ni Ding
- Applicant: Abbott Cardiovascular Systems Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Abbott Cardiovascular Systems Inc.
- Current Assignee: Abbott Cardiovascular Systems Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Squire Patton Boggs (US) LLP
- Main IPC: B29B13/06
- IPC: B29B13/06 ; B29C47/10 ; B29C47/76 ; B29C47/92 ; B29C47/00
Abstract:
Methods and systems for controlling the moisture content of biodegradable and bioresorbable polymer resin during extrusion above a lower limit that allows for plasticization of the polymer resin melt and below an upper limit to reduce or prevent molecular weight loss are disclosed. Methods are further disclosed involving plasticization of a polymer resin for feeding into an extruder with carbon dioxide and freon.
Public/Granted literature
- US20140298675A1 CONTROLLING MOISTURE IN AND PLASTICIZATION OF BIORESORBABLE POLYMER FOR MELT PROCESSING Public/Granted day:2014-10-09
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