Process for producing composite material
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorsMasaya Kawasumi, Masao Kohzaki, Yoshitsugu Kojima, Akane Okada, Osami Kamigaito
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Abstract
Provided herein is a process for producing a composite material composed of a polymer and the layered silicate constituting the clay mineral being connected to the polymer through ionic bonding. The process comprises contacting a layered clay mineral with a swelling agent in the presence of a dispersion medium, thereby forming a complex, mixing said complex containing said dispersion medium with a monomer, and polymerizing said monomer contained in said mixture. The process permits the economical and efficient production of a composite material in which the layered silicate is uniformly dispersed.
Claims6
A process for producing a composite material which comprises a contacting step of contacting a layered clay mineral having a cation exchange capacity of 50 to 200 milliequivalents per 100 g with a swelling agent in the presence of a dispersion medium, thereby forming a complex which has the property of being swollen by a molten monomer of a polymer or by a mixture of said monomer and dispersion medium, a mixing step of mixing said complex containing said dispersion medium with said monomer of a polymer, and a polymerization step of polymerizing said monomer in said mixture.
Dependencies are inferred from the claim text.