The hydrophilicity of water repellent soil
AssigneeAquatrols Corporation of America, Inc.
InventorsStanley J. Kostka, Paul Thomas Bially
Life of this patent
Estimating the term…
Abstract
Water repellent soil is treated with low concentrations of a blend of alkyl polyglycoside and EO/PO block copolymer in a weight ratio range of from 6:1 to 0.5:1 of glycoside to block copolymer in order to rapidly increase the wetting rate of the water repellent soil.
Claims10
A process for increasing the wetting rate of water repellent soil which comprises the steps of:
- i) preparing an aqueous wetting agent composition comprising
- a) alkyl polyglycoside;
- b) ethylene oxide-propylene oxide block copolymer;
- and
- c) water
- wherein the weight ratio of the glycoside to the block copolymer is from 6:1 to 0.5:1;
- and
- ii) intimately contacting water repellent soil with an effective amount of said wetting agent composition.
A process for increasing the wetting rate of water repellent soil which comprises the steps of
- i) preparing an aqueous wetting agent composition comprising:
- a) an alkyl polyglycoside having predominantly C8 and C10 alkyl chains and an average degree of polymerization of from 1.4 to 1.7;
- b) an EO-PO-EO block copolymer having an average molecular weight of from 2000 to 8000, a hydrophile weight percent of from less than 10 to 40;
- and an HLB value less than or equal to 10;
- and
- c) water
- wherein the weight ratio of the glycoside to the block copolymer is from 4:1 to 0.7:1;
- and
- ii) intimately contacting water repellent soil with an effective amount of said wetting agent composition.
A process for increasing the wetting rate of water repellent soil which comprises the steps of:
- i) preparing a solid granular or powder wetting agent composition comprising:
- a) alkyl polyglycoside;
- and
- b) ethylene oxide-propylene oxide block copolymer wherein the weight ratio of the glycoside to the block copolymer is from 6:1 to 0.5:1;
- and
- ii) contacting water repellent soil with an effective amount of said solid wetting agent composition.
A process for increasing the wetting rate of water repellent soil which comprises the steps of:
- i) preparing a solid granular or powder wetting agent composition comprising:
- a) an alkyl polyglycoside having predominantly C8 and C10 alkyl chains and an average degree of polymerization of from 1.4 to 1.7;
- b) an EO-PO-EO block copolymer having an average molecular weight of from 2000 to 8000, a hydrophile weight percent of from less than 10 to 40;
- and an HLB value less than or equal to 10;
- and
- wherein the weight ratio of the glycoside to the block copolymer is from 4:1 to 0.7:1;
- and
- ii) contacting water repellent soil with an effective amount of said solid wetting agent composition.
A process for increasing the wetting rate of water repellent soil which comprises the steps of:
- i) preparing a solid granular or powder wetting agent composition comprising:
- c) alkyl polyglycoside;
- and
- d) ethylene oxide-propylene oxide block copolymer
- wherein the weight ratio of the glycoside to the block copolymer is from 6:1 to 0.5:1;
- and
- ii) adding said solid wetting agent composition to water to form an aqueous wetting agent composition;
- and
- iii) intimately contacting water repellent soil with an effective amount of said aqueous wetting agent composition.
A process for increasing the wetting rate of water repellent soil which comprises the steps of:
- i) preparing a solid granular or powder wetting agent composition comprising:
- a) an alkyl polyglycoside having predominantly C8 and C10 alkyl chains and an average degree of polymerization of from 1.4 to 1.7;
- b) an EO-PO-EO block copolymer having an average molecular weight of from 2000 to 8000, a hydrophile weight percent of from less than 10 to 40;
- and an HLB value less than or equal to 10;
- and
- wherein the weight ratio of the glycoside to the block copolymer is from 4:1 to 0.7:
- 1;
- and
- ii) adding said solid wetting agent composition to water to form an aqueous wetting agent composition;
- and
- iii) intimately contacting water repellent soil with an effective amount of said aqueous wetting agent composition.
Dependencies are inferred from the claim text.