Patent ID: 7432312
Filing Date: 2008-10-07
Classification: A47C,A47G,C08G,C08J,C08K,C08L

Abstract:
1. A polyurethane foam including carbon powder an inorganic antibacterial agent, polyol component and isocyanate component, wherein said carbon powder is a mixture of (1) porous carbon powder comprising charcoal and (2) carbon black, wherein the blending ratio of said porous carbon powder and said carbon black is from 1:0.5 to 1:5 in weight ratio, wherein said porous carbon powder has a particle diameter of from 10 μm to 400 μm, wherein said carbon black has a particle diameter of from about 0.01 μm to 1 μm, wherein said inorganic antibacterial agent is at least one of silver and titanium dioxide, wherein the blended quantity of said carbon powder is from 0.01 to 30 weight % to entire of all components quantity, wherein the blended quantity of said inorganic antibacterial agent is from 0.01 to 30 weight % to entire quantity, wherein said carbon black is contained in the polyurethane foam to improve a dispersibility of said porous carbon powder; wherein said inorganic antibacterial agent is held by said porous carbon powder to enhance the antibacterial effect, and wherein said inorganic antibacterial agent is at least on a surface of or inside a stomate of the porous carbon powder, wherein said polyurethane foam is a low impact resilience polyurethane foam, and wherein the return time of point pressurization under 20° C. is less or equal 35 seconds.