发明申请
- 专利标题: HYDROGELS THAT UNDERGO VOLUMETRIC EXPANSION IN RESPONSE TO CHANGES IN THEIR ENVIRONMENT AND THEIR METHODS OF MANUFACTURE AND USE
- 专利标题(中): 水下体积膨胀对其环境变化的响应及其制造和使用方法
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申请号: US13527485申请日: 2012-06-19
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公开(公告)号: US20120302654A1公开(公告)日: 2012-11-29
- 发明人: Gregory M. Cruise , Michael J. Constant
- 申请人: Gregory M. Cruise , Michael J. Constant
- 主分类号: C08L33/26
- IPC分类号: C08L33/26
摘要:
Generally, hydrogels are prepared by forming a liquid reaction mixture that contains a) monomer(s) and/or polymer(s) at least portion(s) of which are sensitive to environmental changes (e.g., changes in pH or temperature), b) a crosslinker and c) a polymerization initiator. If desired, a porosigen may be incorporated into the liquid reaction mixture to create pores. After the hydrogel is formed, the porosigen is removed to create pores in the hydrogel. These hydrogels may be prepared in many forms including pellets, filaments, and particles. Biomedical uses of these hydrogels include applications wherein the hydrogel is implanted in the body of a patient and an environmental condition at the implantation site causes the hydrogel to expand in situ.
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