William B Clarke

US Patent:

50262157, Jun 25, 1991

Filed:

Dec 2, 1988

Appl. No.:

7/278970

Inventors:

William J. Clarke - Ridgewood NJ

Assignee:

Geochemical Corporation - Ridgewood NJ

International Classification:

E02D 312
C04B 714
C09K 1700

US Classification:

405266

Abstract:

A method of grouting formations with a cementitious material comprising microfine ground slag is useful for stabilizing and strenghtening soil and rock formations as well as underground structures associated with buildings, tunnels and dams. A composition is provided which comprises water, a dispersant, slag and an accelerator to activate the slag. The method and composition are particularly useful for preventing permeation of water such as for grouting dam curtains and containing and stabilizing hazardous wastes including nuclear waste material.

US Patent:

48971197, Jan 30, 1990

Filed:

Jan 11, 1988

Appl. No.:

7/142464

Inventors:

William J. Clarke - Ridgewood NJ

Assignee:

Geochemical Corporation - Ridgewood NJ

International Classification:

C04B 714

US Classification:

106117

Abstract:

Disclosed is a novel composition comprising water, ground blast furnace slag and a low molecular weight polymeric dispersant. The dispersant is a polymer of acrylic acid, having a molecular weight between 1000 and 20,000, and being in the form of the acid or the salt of an alkali metal or ammonia. A process for preparing a dispersion having the novel composition is also disclosed.

US Patent:

43188354, Mar 9, 1982

Filed:

Jul 21, 1980

Appl. No.:

6/170474

Inventors:

William J. Clarke - Ridgewood NJ

Assignee:

Hayward Baker Company - Odenton MD

International Classification:

C08L 3302

US Classification:

264 36

Abstract:

This invention is concerned with an aqueous liquid composition comprising unsaturated monomers including (1) magnesium diacrylate and/or calcium diacrylate, (2) a polyol monoacrylate selected from hydroxyethyl acrylate and hydroxypropyl acrylate, and (3) a polyethylenically unsaturated monomer copolymerizable with (1) and (2) to produce covalent cross-linking bonds in the copolymer besides the ionizable magnesium bonds. The weight ratio of (3) to the sum of (1) and (2) is in the range of about 3:97 to about 5:95. Examples of monomers that can be used as part or all of component (3) include N,N'-methylene-bis-acrylamide and ethylene glycol diacrylate. The relative proportions between the several monomers are selected to provide on polymerization a cross-linked vinyl addition polymer gel containing both covalent (non-ionic) cross-linking bonds and ionic cross-linking bonds and the relative proportions between the several components are predetermined to render the composition suitable for application by conventional mixing packer equipment hereinafter described. In such equipment, means is provided to direct a second aqueous solution or suspension containing a water-soluble free radical initiator, such as a persulfate or peroxide, separately but concurrently with the first monomer-containing solution to a common distributor head of the movable packer positioned in the sewer conduit adjacent the joint or crack to be repaired. The monomer solution is provided with a tertiary amine which serves as a reducing agent, thereby providing a redox polymerization system so that when the two liquids mix, upon discharge from the head, a rapid polymerization to a polymer gel occurs at the ambient temperature.

US Patent:

40941507, Jun 13, 1978

Filed:

Apr 15, 1976

Appl. No.:

5/677355

Inventors:

William J. Clarke - Ridgewood NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C08L 3500

US Classification:

61 36C

Abstract:

A gel-forming composition of matter comprising an aqueous solution of a mixture of certain percentages of monomeric acrylamide and monomeric N,N' methylenebisacrylamide and a polymerization catalyst and containing certain percentages of an unfired natural diatomaceous earth having a certain particle size is used in treating earthen formations around the joints of sewer pipes, whereby fluid loss from the composition into the earthen formation is substantially reduced.

US Patent:

43126057, Jan 26, 1982

Filed:

Mar 24, 1980

Appl. No.:

6/133361

Inventors:

William J. Clarke - Ridgewood NJ

Assignee:

Hayward Baker Company - O'Denton MD

International Classification:

E02D 312
E02D 2910
E21B 33138

US Classification:

405264

Abstract:

This invention is concerned with a method of grouting sewer conduits by using an aqueous liquid composition comprising unsaturated monomers including (1) magnesium diacrylate, (2) an alkali metal (sodium or potassium) monoacrylate in a weight ratio of (1):(2) from about 90:10 to about 70:30, and (3) a polyethylenically unsaturated monomer copolymerizable with (1) and (2) to produce covalent cross-linking bonds in the copolymer besides the ionizable magnesium bonds. The weight ratio of (3) to the sum of (1) and (2) is in the range of about 3:97 to about 5:95. Examples of monomers that can be used as part or all of component (3) include N,N'-methylene-bis-acrylamide and ethylene glycol diacrylate. The relative proportions between the several monomers are selected to provide on polymerization a cross-linked vinyl addition polymer gel containing both covalent (non-ionic) cross-linking bonds and ionic cross-linking bonds and the relative proportions between the several components are predetermined to render the composition suitable for application by conventional mixing packer equipment hereinafter described. In such equipment, means is provided to direct a second aquoeus solution or suspension containing a water-soluble free radical initiator, such as a persulfate or peroxide, separately but concurrently with the first monomer-containing solution to a common distributor head of the movable packer positioned in the sewer conduit adjacent the joint or crack to be repaired.

US Patent:

51064235, Apr 21, 1992

Filed:

Jun 24, 1991

Appl. No.:

7/720239

Inventors:

William J. Clarke - Ridgewood NJ

Assignee:

Geochemical Corporation - Ridgewood NJ

International Classification:

C04B 714
E02D 312
C09K 1700

US Classification:

106789

Abstract:

A method of grouting porous gas--and petroleum--bearing formations with a cementitious material comprising ultrafine ground slag is useful for primary and remedial cementing of a wellbore. A composition is provided which comprises water, a dispersant, slag and an accelerator to activate the slag.

US Patent:

47611839, Aug 2, 1988

Filed:

Jan 20, 1987

Appl. No.:

7/004668

Inventors:

William J. Clarke - Ridgewood NJ

Assignee:

Geochemical Corporation - Ridgewood NJ

International Classification:

C01B 714

US Classification:

106117

Abstract:

A grouting composition, a method of grouting and a formation so grouted are disclosed. The composition comprises a very small particle size slag, an equal or greater weight of water and the optional components cement, alkali silicate, anionic dispersant, a source of orthophosphate ions, sodium hydroxide and sodium carbonate. The grout is particularly adapted to the treatment of "tight" or low permeability formations being low in viscosity and having controllable set time and hardening time as well as high strength upon hardening. Being based on slag, a byproduct, the grout is economical.