Resinous porous article and method for production thereof

Details Resinous porous article and method for production thereof Resinous porous article and method for production thereof

2011-03-22

2011-03-22

Vo, Hai (Department: 1788)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

C428S305500, C428S306600, C428S315500, C428S315700, C521S061000, C521S063000, C384S527000

Reexamination Certificate

active

07910198

ABSTRACT:
The present invention provides a resinous porous article having a high interconnected hole porosity and capable of retaining a large amount of a lubricating oil and does not rust iron and steel, even though an unextracted portion of a pore-forming substance bleeds out when the resinous porous article is used as parts which contact a metal portion or the like and a method of producing the resinous porous article. The resinous porous article is formed by a producing method of molding a resin containing the pore-forming substance into a molding, and extracting the pore-forming substance from the molding with a solvent which does not dissolve the resin therein. The resinous porous article has an interconnected hole porosity not less than 30%. The pore-forming substance consists of an alkali compound.

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