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Sanyo & Matsushita Electric Patent Detergent

November 15, 2005

Patent No. US 6,680,286 B1: Japan-based researchers for Sanyo Chemical Industries, Ltd., Kyoto, and Matsu-shita Electric Industrial Co., Ltd., Kadoma, patented a liquid detergent comprising a surfactant and a builder that contain water and a builder with a quaternary ammonium salt derived from a carboxyl-containing polymer.

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