1
Anderson Donald R, Frisque Alvin J: Process for rapidly dissolving water-soluble polymers. Nalco Chemical Company, November 30, 1971: US3624019 (153 worldwide citation)

Water-soluble vinyl addition polymers and gums may be rapidly dissolved in water by first dispersing these polymers into a water-in-oil emulsion and then inverting these emulsions in water. The inversion of the emulsion releases the polymer into water as a solution.


2
John E Hoots, Barry E Hunt: Fluorescent tracers - chemical treatment monitors. Nalco Chemical Company, Kinzer Plyer Dorn McEachran & Jambor, November 8, 1988: US04783314 (107 worldwide citation)

A method to determine performance of a treating agent (CA) added to a system body of liquid to enhance performance of the liquid body is determined by employing an inert fluorescent tracer (T) in a known T:CA dosage proportion, prepared on the basis of a concentration of CA (e.g. ppm) proposed for o ...


3
Carl W Aften, Robert K Gabel: Clay stabilizer. Nalco Chemical Company, Robert A Miller, Joseph B Barrett, Joan I Norek, August 30, 1994: US05342530 (101 worldwide citation)

A composition suitable as an additive in down-hole fluid for inhibiting clay swelling in a down-hole formation is comprised of an aqueous solution of a quaternary amine-based cationic polyelectrolyte and salt(s). The cation of the salt(s) may be a divalent salt cation, a choline cation, are certain ...


4
Omar M Yaghi: Crystalline metal-organic microporous materials. Nalco Chemical Company, Robert A Miller, James J Drake, July 15, 1997: US05648508 (95 worldwide citation)

Novel metal-organic microporous materials are prepared in solution using mild reaction conditions from a metal or metalloid ion with a ligand containing multidentate functional groups in the presence of a templating agent. The resultant microporous materials are useful in the purification of liquids ...


5
Kerrie A Johnson: Papermaking aid. Nalco Chemical Company, John G Premo, Donald G Epple, Anthony L Cupoli, February 17, 1987: US04643801 (87 worldwide citation)

An improved binder for use in paper-making contains three ingredients, a cationic starch having a degree of substitution of at least 0.01, a high molecular weight anionic polymer having a molecular weight of at least 500,000 and a degree of anionic substitution of at least 0.01, and a dispersed sili ...


6
Daniel K Chung: Retention and drainage aid for alkaline fine papermaking process. Nalco Chemical Company, Ailes Ohlandt & Greeley, June 30, 1992: US05126014 (82 worldwide citation)

A process in which fine paper is made by forming an aqueous cellulosic suspension comprising fibers, a precipitated calcium carbonate filler and a cationic starch strengthening agent, passing the suspension through one or more shear stages, draining the suspension to form a sheet and drying the shee ...


7
James H Smith Jr: Papermaking process. Nalco Chemical Company, Joan I Norek, Robert A Miller, Joseph B Barrett, June 22, 1993: US05221435 (81 worldwide citation)

In a papermaking process a paper product is formed from a mineral filler containing cellulosic slurry. Retention performance is provided by the sequential addition of a cationic charge-biasing species, an anionic flocculant, and then a certain microparticle. A shear stage is interposed between the f ...


8
Bhupati R Bhattacharyya, William J Roe: Dust control. Nalco Chemical Company, Richard L Johnson, November 29, 1983: US04417992 (78 worldwide citation)

Dust is controlled on roads, in mines, on mineral and tailings piles, surfaces of pulverized coal and mineral piles contained within open transit cars such as coal cars or trucks, and other surfaces containing coal particles, rock dust, clay, soil particles and other finely divided particles subject ...


9
Bhupati R Bhattacharyya: Cross-linked cationic polymers for use in personal care products. Nalco Chemical Company, Joan I Norek, John G Premo, Donald G Epple, February 21, 1989: US04806345 (76 worldwide citation)

Personal care compositions are provided which have as a thickening agent a lightly cross-linked cationic vinyl addition polymer. Such compositions include water, at least one cosmetically-active agent, and such thickening agent, preferably one derived from the polymerization of a cationic vinyl addi ...


10
Scott J Smith, Eric J Lind: Superabsorbent polymer having improved absorption rate and absorption under pressure. Nalco Chemical Company, Robert A Miller, Patricia A Charlier, James J Drake, October 31, 1995: US05462972 (69 worldwide citation)

A carboxylic containing superabsorbent polymer having a swell rate of at least 0.3 g./g.sec., a gel strength of about 40,000 to about 150,000 dynes/cm.sup.2, a centrifuge capacity at 30 minutes of about 20 to about 50 g/g, an absorption permeability under pressure at 60 minutes of at least 5 g/g at ...



Click the thumbnails below to visualize the patent trend.