发明名称 |
Method for producing porous material |
摘要 |
A method for making a polymer with a porous layer from a solid piece of polymer is disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature below a melting point of the polymer and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer. |
申请公布号 |
US9085665(B1) |
申请公布日期 |
2015.07.21 |
申请号 |
US201414587856 |
申请日期 |
2014.12.31 |
申请人 |
Vertera, Inc. |
发明人 |
Chang Wei-Hsiang;Laffoon Stephen Lee;Lee Christopher S. D.;Safranski David Lee |
分类号 |
B29C67/20;C08J9/26 |
主分类号 |
B29C67/20 |
代理机构 |
Morris, Manning & Martin, LLP |
代理人 |
Morris, Manning & Martin, LLP |
主权项 |
1. A method for forming a solid polymer body with pores distributed through at least a portion of the solid, the method comprising:
placing a surface of a solid piece of polyetheretherketone (PEEK) in contact with a portion of a plurality of sodium chloride grain layers; heating the surface of the solid piece of PEEK to a processing temperature of about 305 to 342 degrees Celsius; holding the processing temperature of the surface of the solid piece of PEEK for a processing period of time of between about twenty and forty minutes to create a viscous layer of PEEK of the solid piece of PEEK; displacing at least the portion of the plurality of sodium chloride grain layers through the viscous layer of the solid piece of PEEK, creating a matrix layer of PEEK and sodium chloride grains; and leaching one or more of the sodium chloride grains of the plurality of sodium chloride grain layers and cooling the surface of the solid piece of PEEK to form a solid polymer with a porous layer, wherein a shear strength of the porous layer increases substantially linearly with the processing period of time. |
地址 |
Atlanta GA US |