1
Hwa Chih Ming, Cuisia Dionisio Guerrero, Gray John Allen: Polyacrylate-polyphosphonic acid treatment in aqueous systems. Chemed Corporation, Bond Eugene M, June 17, 1975: US3890228 (52 worldwide citation)

The invention disclosed relates to the use of combinations of polyacrylates and polymethacrylates with organo-phosphonic acids for the treatment of aqueous systems. The organo-phosphonic acid compounds include alkylene and hydroxy alkylene polyphosphonic acids, and water-soluble salts thereof. The p ...


2
Dionisio G Cuisia, Chih M Hwa, Jose T Jacob, Murrell L Salutsky: Boiler water treatment. Chemed Corporation, Charles L Harness, January 10, 1978: US04067690 (47 worldwide citation)

The invention disclosed provides a method for boiler water treatment to retard corrosion due to dissolved oxygen. Hydroxylamine, certain derivatives thereof and their salts have now been found to be highly effective oxygen scavengers for use in boiler water and thereby effect reduction of corrosion ...


3
Herman Kerst: Method for deoxygenation of water. Chemed Corporation, Charles L Harness, July 14, 1981: US04278635 (45 worldwide citation)

A method for boiler water treatment to retard corrosion due to dissolved oxygen. Hydroquinone and certain related compounds are highly effective oxygen scavengers for use in boiler water and thereby effect reduction of corrosion resulting from dissolved oxygen.


4
Cowen Samuel H: Releasable medicament dental carrier and method. Chemed Corporation, Bond Eugene M, October 29, 1974: US3844286 (45 worldwide citation)

A flexible foam I-beam shaped carrier is disclosed having a medicament disposed within channel portions thereof for release during dental treatment. The present invention provides a structure for dental treatment and is especially adaptable for home usage.


5
Philip M Sabatelli, Denny E Daugherty: Slurried detergent and method. Chemed Corporation, Charles L Harness, April 3, 1979: US04147650 (41 worldwide citation)

The invention disclosed provides a new improved slurry detergent and to a method of using same. The slurry detergent may be formulated with alkali metal hydroxides and/or silicates, condensed phosphates, sodium hypochlorite and sodium polyacrylate, or the like. The new improved slurry is found to ha ...


6
Chih M Hwa, Dionisio G Cuisia: Scale inhibition. Chemed Corporation, Charles L Harness, March 10, 1981: US04255259 (38 worldwide citation)

This invention relates to an improved method for inhibiting deposition of scale in aqueous systems. More specifically, it relates to the use of small quantities of an improved composition for preventing formation of scale and sludge deposits in steam generating boilers. The composition is characteri ...


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Jose T Jacob: Method and composition for inhibiting corrosion in aqueous systems. Chemed Corporation, Eugene M Bond, January 27, 1976: US03935125 (37 worldwide citation)

The invention disclosed relates to a method and composition for inhibiting corrosion in aqueous systems, the composition including a mixture of amine pyrophosphate, an organophosphonate, and a triazole. The composition provides a non-polluting corrosion inhibitive system which is especially useful i ...


9
Thomas C Tesdahl: Foam cleaner for food plants. Chemed Corporation, Charles L Harness, October 14, 1980: US04228048 (34 worldwide citation)

Liquid cleaning and bleaching concentrate which generates copious foam on dilution with water in a mechanical foam generator. Contains modified polyacrylic acid salt, sodium tripolyphosphate, sodium hydroxide, sodium silicate, sodium hypochlorite sodium alkane sulfonate, and (optionally) sodium poly ...


10
Dionisio Guerrero Cuisia, Chih Ming Hwa: Method of inhibiting scale. Chemed Corporation, Charles L Harness, September 13, 1977: US04048066 (33 worldwide citation)

The invention disclosed relates to a method for using a new improved composition for inhibiting or preventing accumulation of scale or the like on heating surfaces in an aqueous system. The present composition includes (A) copolymers of styrene sulfonic acid with acrylic or methacrylic acid, and the ...