Invention Application
WO2013022851A2 CONTROLLING MOISTURE IN AND PLASTICIZATION OF BIORESORBABLE POLYMER FOR MELT PROCESSING
审中-公开
控制用于熔融加工的可生物降解聚合物的水分和塑化
- Patent Title: CONTROLLING MOISTURE IN AND PLASTICIZATION OF BIORESORBABLE POLYMER FOR MELT PROCESSING
- Patent Title (中): 控制用于熔融加工的可生物降解聚合物的水分和塑化
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Application No.: PCT/US2012/049775Application Date: 2012-08-06
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Publication No.: WO2013022851A2Publication Date: 2013-02-14
- Inventor: STEICHEN, Bethany , PACETTI, Stephen, D. , GADA, Manish , GLAUSER, Thierry , KLEINER, Lothar, W. , WANG, Yunbing , OBERHAUSER, James, P. , DING, Ni
- Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC. , STEICHEN, Bethany , PACETTI, Stephen, D. , GADA, Manish , GLAUSER, Thierry , KLEINER, Lothar, W. , WANG, Yunbing , OBERHAUSER, James, P. , DING, Ni
- Applicant Address: 3200 Lakeside Drive Santa Clara, California 95054 US
- Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.,STEICHEN, Bethany,PACETTI, Stephen, D.,GADA, Manish,GLAUSER, Thierry,KLEINER, Lothar, W.,WANG, Yunbing,OBERHAUSER, James, P.,DING, Ni
- Current Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.,STEICHEN, Bethany,PACETTI, Stephen, D.,GADA, Manish,GLAUSER, Thierry,KLEINER, Lothar, W.,WANG, Yunbing,OBERHAUSER, James, P.,DING, Ni
- Current Assignee Address: 3200 Lakeside Drive Santa Clara, California 95054 US
- Agency: LUPKOWSKI, Mark et al.
- Priority: US13/207,656 20110811
- Main IPC: B29C47/10
- IPC: B29C47/10 ; B29B13/06 ; B29C47/92 ; B29C47/76
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.
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