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Class 210/701 - Acrylic polymer


Subclass of Class 210 - Liquid purification or separation
Definition: Process wherein the organic compound contains recurring
No. of patents: 371
Last issue date: 06/24/2008


                  10  
NumberTitleIssue Date
4127483Treatment of aqueous systems
A method of inhibiting the precipitation of the scale forming salts of calcium, magnesium, barium and strontium from aqueous systems comprising adding to the aqueous system a minor proportion of a product comprising a telomeric compound of the formula: ...
11/28/1978
4126549Treatment of water
A process for the prevention of scale and the inhibition of corrosion which comprises adding to water a hydrolyzed terpolymer of maleic anhydride with vinyl acetate and ethyl acrylate, the molar ratio of maleic anhydride to the other monomers being from 2...
11/21/1978
4087360Method of inhibiting scale formation
Novel compositions comprising calcium hypochlorite and a proportion of a polyacrylic acid compound have been produced. the compositions provide accurately controlled concentrations of available chlorine to bodies of water such as swimming pools by reducin...
05/02/1978
4085045Low molecular weight hydrolyzed polyacrylamide used as a scale inhibitor in water systems
A process for inhibiting scale formation using a low molecular weight hydrolyzed polyacrylamide prepared by a process involving simultaneously and continuously charging separate streams of acrylamide monomer, ammonium persulfate (as catalyst) and mercapto...
04/18/1978
4079006Methods of scale inhibition
The precipitation of scale forming salts in an aqueous system is inhibited by adding either stoichiometric or substoichiometric, including threshold, amounts to said system of a phosphonomethylene amino carboxylate of the general formula ##STR1## ...
03/14/1978
4072607Preparation of anionic polymers for use as scale inhibitors and anti-precipitants
An anionic polymer of acrylamide having a skewed molecular weight distribution such that about 60% of said polymer has a molecular weight of about 500 to 2,000 and about 10% of said polymer has a molecular weight of about 4,000 to 12,000 has been discover...
02/07/1978
4048066Method of inhibiting scale
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 a...
09/13/1977
4029577Polymers for use in water treatment
The present invention relates to processes for controlling the formation and deposition of scale and/or suspended solid matter which otherwise would occur in aqueous mediums containing scale imparting ions and dispersed particles. The invention, more part...
06/14/1977
4001161Low molecular weight hydrolyzed polyacrylamide and use thereof as scale inhibitor in water systems
A low molecular weight hydrolyzed polyacrylamide having exceptional effectiveness as a scale-inhibiting agent is prepared by a process involving simultaneously and continuously charging separate streams of acrylamide monomer, ammonium persulfate (as catal...
01/04/1977
3965028Bisulfite terminated oligomers to prevent scale
Scale formation in industrial waters, such as cooling water, is inhibited by adding a bisulfite terminated oligomer such as sodium bisulfite-terminated acrylic acid-acrylonitrile oligomer....
06/22/1976
3959167Method and composition of inhibiting scale
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 an acrylic polymer, a water-soluble ...
05/25/1976
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