The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2011
Filed:
Sep. 13, 2006
Hirohisa Yamada, Ibaraki, JP;
Kenji Tamura, Ibaraki, JP;
Shingo Yokoyama, Ibaraki, JP;
National Institute for Materials Science, Tsukuba-shi, JP;
Abstract
A new mixed layer silicate useful for industrial materials is provided. The mixed layer silicate is obtained by a specific synthesis method. The mixed layer silicate includes non-swelling 2:1 type layered silicate layers having a layer charge of 0 or non-swelling 2:1 type layered silicate layers having a layer charge of 0.6 to 1 and including potassium ions between layers and swelling 2:1 type layered silicate layers having a layer charge of 0.2 to 0.6 and including exchangeable cations between layers. The mixed layer silicate has a structure in which individual layers are laminated in a regular order in a lamination direction (regularly mixed layer structure). Furthermore, an organic-inorganic composite material is prepared through intercalation of a positive charge organic compound into the swelling 2:1 type layered silicate layers in the resulting mixed layer silicate, and the resulting organic-inorganic composite material is swollen and peeled in a polymer, so that a polymer composite material in which silicate sheet sets, each set including a few silicate sheets, are homogeneously dispersed in the polymer can be obtained.