Nathan F Cardarelli

44053606, Sep 20, 1983

Jul 24, 1980

6/171834

Nathan F. Cardarelli - Barberton OH

Environmental Chemicals, Inc. - Wauconda IL

A01N 3738

71117

A composition and method for the controlled release of compounds from a plastic dispenser, usually a thermoplastic, generally in association with a porosigen in contact with water, for example, an aquatic environment or soil mixture. Thermoplastic dispensers are generally made from a water insoluble polymer such as polyethylene, polypropylene, ethylene vinyl acetate, polyamide, polystyrene, polyvinyl acetate, polyurethane, etc. Thermoset plastics, such as epoxy, are also used. The porosigen, depending upon the desired end use and release rate of a compound, can have a solubility of less than 0. 1 or 0. 001 grams per 100 grams of water, or up to 100 grams per 100 grams of water. The released compound, for example, a herbicide, is contained in the thermoplastic dispenser. The combination of the plastic dispenser containing the porosigen and compound results in a slow release of a herbicide which can last for days, months, and even years, through dissolution of the porosigen and the formation of a porous network permitting water to contact the dispersed herbicide located in the interior portions of the dispenser.

45419566, Sep 17, 1985

Jul 28, 1983

6/518073

Nathan F. Cardarelli - Akron OH
Sebastian V. Kanakkanatt - Akron OH

Unique Technologies, Inc. - Akron OH

C07J 900

2603971

A method and composition for the preparation of steroid compounds by the reaction of various organotin compounds with steroids. Said compounds retard the growth of malignant tumors and, in some cases, completely destroy the tumor.

RE323560, Feb 17, 1987

Aug 22, 1984

6/643142

Nathan F. Cardarelli - Barberton OH

Consolidated Fertilizers Limited - Queensland

A01N 5504

424 78

A composition and method for the controlled release of compounds from a plastic dispenser, usually a thermoplastic, generally in association with a porosigen in contact with water, for example, an aquatic environment or soil moisture. Thermoplastic dispensers are generally made from a water insoluble polymer such as polyethylene, polypropylene, ethylene vinyl acetate, polyamide, polystyrene, polyvinyl acetate, polyurethane, etc. Thermoset plastics, such as epoxy, are also used. The porosigen, depending upon the desired end use and release rate of a compound, can have a solubility of less than 0. 1 or 0. 001 grams per 100 grams of water, or up to 100 grams per 100 grams of water. The released compound, for example, a larvicide, a molluscicide, a nematicide, a trace nutrient, a plant regulant, etc. , is contained in the thermoplastic dispenser. The combination of the plastic dispenser containing the porosigen and compound results in a slow release which can last for days, months, and even years, through dissolution of the porosigen and the formation of a porous network permitting water to contact the dispersed compound located in the interior portions of the dispenser.

43539629, Oct 12, 1982

May 18, 1981

6/264822

Chester M. Himel - Athens GA
Nathan F. Cardarelli - Akron OH

Environmental Chemicals, Inc. - Wauconda IL

B32B 516
B01J 1300
B29C 600
B29C 1300

428407

A method and composition for the in-flight encapsulation of particles such as insecticides, herbicides, molluscicides, acaricides, fungicides, nutrients, pheromones, odorants, fragrances, attractants, repellents, trace elements, plant regulants, and the like is disclosed. The composition comprises, by weight, from 1 to 40 percent of said particles, from 0. 1 to 25 percent of a film-forming polymer and from 35 to 99 percent of a liquid which renders said polymers soluble or dispersible. Often, other compounds may be added to impart desirable properties such as other film-forming polymers, crosslinking agent film modifying agents, core agents, and adhesives to improve adhesion to a target. The particle may be in a true solution, suspended, or emulsified through the action of surfactants and/or emulsifying agents. The film-forming polymers include various acrylic polymers and interpolymers of alpha-beta olefinically unsaturated carboxylic acids and N-methylol acrylic amides, as set forth in U. S. Pat. No.

50153722, May 14, 1991

Feb 7, 1990

7/476234

William B. Mercer - Annapolis MD
Nathan F. Cardarelli - Akron OH
Richard L. Henry - Akron OH

The United States of America as represented by the Secretary of the Navy - Washington DC

B63B 5900

210170

An apparatus and method for the elimination of marine fouling of marine mechanisms such as underwater fluid distribution emission systems. A grommet nozzle made of plastic materials containing an antifoulant and having a capability of easy installation forms a basic part of the apparatus. The grommet nozzle of the invention is formed of a polymer or a mixture of polymers containing a material toxic to calcareous marine organisms and capable of release of the toxic material into the environment at such a rate that the marine organisms grow extremely slow, yet the release rate is not sufficiently fast to be a toxic hazard to the surrounding environment.

42996139, Nov 10, 1981

Jun 22, 1979

6/051102

Nathan F. Cardarelli - Barberton OH

Environmental Chemicals, Inc. - Wauconda IL

A01N 2500

71 64F

Compositions of and a method for preparing polymeric formulations that gradually, continuously and uniformly release various compounds over a long period of time in ionic form that are well recognized as essential to the growth of agricultural commodities. The compounds, such as inorganic salts of varying water solubilities, are monolithically incorporated in a thermoplastic polymeric matrix usually of two thermoplastic polymers, for example, a copolymer of poly(ethylene-vinyl acetate) or a copolymer of ethylene and propylene. Release is generally conditioned upon the presence of moisture and is proportional to the moisture content of soil treated with the subject invention. Release rate is tailored to a given desirable condition by regulation of the free volume and/or porosity within the polymer matrix and through dispenser geometry. Free volume is maintained at the level conducive to agent release such as through the use of free volume modifying secondary thermoplastic additives such as low density polyethylene; and porosity is controlled through the use of porosity enhancing agents appropriately termed porosigens. Said porosigens can be the low or moderate soluble salts such as the carbonates, bicarbonates, sulfates, phosphates, nitrates, etc.

43741266, Feb 15, 1983

Feb 23, 1981

6/237051

Nathan F. Cardarelli - Barberton OH
William H. Evans - Akron OH

Warner-Lambert Company - Morris Plains NJ

A61K 3178

424 81

A method and composition for a film forming antimicrobial material for animal skin wherein said film is resistant to body fluids and provides long term protection against microorganisms. The composition comprises an alcohol soluble carboxylated polycrylate wherein is added an antimicrobial agent, a topical adhesion promoter, and a difunctional amide which crosslinks said polymer as said solvent evaporates. The topical film so formed does not interfere with respiratory processes and is inert to blood, urine, gastric acids, perspiration, saline solutions and the like. Once formed, said film will not resolubilize in alcohol or other common sterilants. Said topical film adheres to tissue and is resistant to physical removal and to abrasion. Film longevity is in excess of 2 days. Substantial protection is provided against pathogenic bacteria and fungi often implicated in hospital infections and thus can serve as a presurgical dressing, preparation agent, as well as in post-surgical prophylaxis.

40122212, Mar 15, 1977

May 13, 1975

5/577051

Katherine E. Walker - Akron OH
Nathan F. Cardarelli - Barberton OH

International Copper Research Association Inc. - New York NY

A01N 1104

71 66

A method and composition for destroying disease transmitting trematode hosts over a sustained period of time by treatment with a controlled release toxicant composition. The composition comprises a water-soluble, inorganic copper salt capable of releasing copper ions in water which is substantially uniformly dispersed in a moderately crosslinked elastomer in which the copper salt is insoluble. The composition, when contacted with water, allows for the controlled and sustained release of copper ions to cause chronic intoxication and eventual destruction of the molluscan target.