Donlar Corporation

Global Green Products LLC

Global Green Producs LLC

Abdul R Meah

Larry P Koskan

Kim C Low

Anne M Atencio

Robert J Ross

J Larry Sanders

Alan M Kinnersley

David J Strom

James F Kneller

Daniel A Batzel

Lai-Duien Grace Fan

David J Harms

Barbara E Moriarty

Jon Vander Woude

Jon Vander Wonde

Formulations and method for preventing and inhibiting the formation of iron sulfide in hydrocarbon producing wells are disclosed. The methods may include treating at least one of an oil well, a production fluid, and downstream field equipment with an additive including a DL-aspartic acid polymer. Other formulations and methods are disclosed including methods for reducing microbial counts in hydrocarbon producing wells and/or methods for dispersing iron sulfide in hydrocarbon producing wells.

Methods for inhibiting iron sulfide scale in oil wells

An amount of treatment water injected into a subterranean well may be reduced by providing an environmentally friendly polymer, such as a biodegradable polymer (e.g., an aspartic acid based polymer), to the subterranean well. In some cases, the aspartic acid based polymer may include one or more of a copolymer of the aspartic acid based polymer, a terpolymer of the aspartic acid based polymer, an aspartic acid based polymer derivative, an aspartic acid based polymer having an end cap, and a soluble salt of the aspartic acid based polymer. In some cases, the treatment water use may be reduced within the range of about five percent to about ninety five percent.

System and method for inhibiting scale formation in oil wells

Method for inhibiting scale formation in oil wells

The present invention provides useful biodegradable and environmentally friendly cost effective methods for oil recovery and reclamation from oil spills and chemical spills. More particularly, methods to recover and reclaim hydrocarbons or hydrophobic substances in an aqueous environment.

Methods to recover and reclaim hydrocarbons or hydrophobic substances in an aqueous environment

This invention relates to enhancing plant productivity employing a method and improved compositions containing water-soluble crosslinked polyamino acids having a weight average molecular weight of a size larger than about 1,500. More particularly, crosslinked polyamino acids enhance plant productivity when supplied to the plant directly as the free acid or salt thereof or hydrolyzed from a crosslinked precursor of the crosslinked polyamino acid by the method disclosed. Particularly suitable for this purpose are water-soluble, crosslinked polyaspartic acid, and salts thereof and hydrolyzed crosslinked polysuccinimide.

Method and composition for enhanced plant productivity comprising

Plant productivity in a hydroponic medium is enhanced by the addition of a water-soluble, non-biodegradable, non-peptidal polymeric acid having a molecular size larger than about 1,500 Daltons.

Method for enhanced hydroponic plant productivity with polymeric acids

This invention relates to enhancing plant productivity employing a method which supplies to a plant a water-soluble co-polymeric acid having a molecular size larger than about 1,600 Daltons.

Method for enhanced plant productivity

This invention relates to enhancing plant productivity employing a method and improved compositions containing water-soluble amino acid co-polymers having a molecular size larger than about 1,500 Daltons.

Method and composition for enhanced hydroponic plant productivity with

Water-soluble polyorganic acids having a molecular size of more than 1,500 Daltons enhance plant fertilizer uptake when supplied to the plant, usually in the root feeding zone or through foliar mechanisms. Particularly suitable for this purpose are the polyamino acids such as polyaspartic acid and copolymers thereof.

Method for more efficient uptake of plant growth nutrients

A method of preserving cut flowers such as roses, tulips, carnations and mums, by the insertion of the freshly cut stems of cut flowers in a solution of a water-soluble polyamino organic acid, preferably polyaspartic acid. The life of a flower, as it appears healthy and viable without stem bending or senescence of the flower itself, is substantially prolonged, in many cases two to three times longer than untreated flowers.

Method and composition for preservation of cut flowers

Polysuccinimide of varying molecular weight has been prepared by heat polymerization of aspartic acid in the presence of a sulfur-containing dehydrating agent employing a variety of reaction mixtures and reaction conditions. Sulfur trioxide and heat decomposable sulfur trioxide precursor dehydrating agents are preferred for this purpose. The presence of an acid scavenger within the reaction mixture is desirable and leads to a relatively higher molecular weight polysuccinimide, while the absence of an acid scavenger results in a relatively lower molecular weight polysuccinimide.

Production of a polysuccinimide and derivatives thereof in the presence

Polyaspartic acid is produced by hydrolysis of anhydropolyaspartic acid that has been produced by thermal condensation polymerization of L-aspartic acid. Conversion in excess of 80 percent is achievable utilizing 'temperature vs. time' profiles.

Polyaspartic acid manufacture

.beta.-Polyaspartic acid having a weight average molecular weight of 1000 to 5000 produced by hydrolysis of anhydropolyaspartic acid exhibits a high degree of calcium carbonate and calcium phosphate inhibition.

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Justice, IL, United States of America

Abdul R Meah