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Maynard H Olson, John C Chang, Imelda A Muggli: Process for providing polyamide materials with stain resistance with sulfonated novolak resin and polymethacrylic acd. Minnesota Mining and Manufacturing Company, D M Sell, W N Truesdale C Kirn, April 18, 1989: US04822373 (79 worldwide citation)

A treated fibrous polyamide substrate having resistance to staining by acid colorants is provided. The treated substrate comprises a fibrous polyamide substrate having applied thereto (a) a partially sulfonated novolak resin and (b) polymethacrylic acid, copolymers of methacrylic acid, or combinatio ...


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John C Chang, Maynard H Olson, Imelda A Muggli: Process for providing polyamide materials with stain resistance. Minnesota Mining and Manufacturing Company, Donald M Sell, Walter N Kirn, Carole Truesdale, June 26, 1990: US04937123 (69 worldwide citation)

A method for imparting to fibrous polyamide materials stain resistance to acid colorants is provided. The method comprises contacting the fibrous polyamide materials with an aqueous treating solution comprising polymethacrylic acid, copolymers of methacrylic acid, or combinations thereof, and drying ...


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David A Bultman, Maynard H Olson: Mist suppressant for solvent extraction metal electrowinning. Minnesota Mining and Manufacturing Company, Donald M Sell, James A Smith, David R Cleveland, November 27, 1984: US04484990 (31 worldwide citation)

The formation of acid mist or spray over metal electrowinning tanks, such as in the electrowinning of copper obtained by solvent extraction, is substantially inhibited or eliminated by electrowinning the metal from electrolyte containing certain cationic and/or amphoteric fluoroaliphatic surfactants ...


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