Abstract: A method for the treatment of wood by a wood preserving agent in a liquid or paste-like form, to be positioned (inserted) in a recess in the wood, which recess is subsequently sealed off.The wood preserving agent contains a water-expelling agent, a water-repellent agent and a biocide.

Abstract: A new method is disclosed for treating a concrete surface to be used in cact with sea water to prevent fouling of the surface, which comprises the steps of: (a) fluating the concrete surface with an aqueous solution of a compound selected from the group consisting of fluorosilicic acid, calcium fluorosilicate, magnesium fluorosilicate, and zinc fluorosilicate of sufficient concentration to strengthen the concrete surface and to prevent biodeterioration thereof; (b) treating the concrete surface with a biocide insoluble in water and selected from the group consisting of copper naphthenate, beta-naphthol, pentachlorophenol and tributyl-tin oxide to prevent biodeterioration of the concrete surface; and (c) fixing the concrete surface treated during steps (a) and (b) by treating the surface with the biocide defined in step (b) in solution with a polyesteric resin or an epoxy resin.

Abstract: Plastic films containing pesticides and useful as coverings for agricultural cultivations which also effectively protect the cultivations from both vegetable and animal pests (parasites) are disclosed, as are methods for obtaining and using the coverings.

Abstract: Diaphanous mildew sealing, coating compositions are disclosed which are comprised of water containing emulsified latex particles which coalesce into a film at room temperature. A mildewcidal agent is included in an amount sufficient to kill mildew contacted by the compositions and a nonvolatile, relatively insoluble alkaline oxide or hydroxide compound is also included in a weight percent range of about 0.006 to about 0.03 times its equivalent weight. These compositions are scrubbed onto mildew infected surfaces so that the mildew colonies are dislodged and entrapped within the coatings which are formed when the compositions dry. The dried coatings containing the dislodged mildew colonies are then painted to provide a decorative surface which better resists mildew formation.

Abstract: The penetration properties of creosote and pentachlorophenol oil-borne wood preservative compositions are improved by adding to such compositions an N,N-dimethylamide of a carboxylic acid containing 18 carbon atoms and at least 1 carbon to carbon double bond.

Abstract: Various objects may be maintained in their original condition or protected from further damage by physical, chemical, and biological forces by applying thereto thin, continuous, impervious coatings of vapor-deposited poly(p-xylylene) polymer or derivatives thereof. By the invention, it is possible to protect paintings, photographs, documents, articles of sculpture, silver objects, coins, fishing hooks and lures, marine fittings and hardware, batteries, fuel cells, automotive parts, water pollution control devices, logic circuits, electrical components, electric motors and parts, light bulbs, ammunitions, fireworks, glass items, decorative items, timepieces, and decorative wrought iron grillwork.

Abstract: Open-ended pores of a porous granule are filled with a liquid material which is at least partially immiscible with water, and sealed with a porous polyurea membrane which limits the release rate of the material into the surrounding medium. The membrane is formed by(a) applying to the bare granule an organic solution comprising the liquid material and an organic polyisocyanate, followed by(b) applying to the granule an aqueous solution comprising water and a catalytic amount of a catalyst selected from the group consisting of a basic organic tertiary amine and an alkyl tin carboxylate.

Abstract: A method for protecting surfaces of objects or constructions that are exposed to surface-water against growth of biological origin by applying an antifouling coating layer onto these surfaces, which coating layer is formed from a paint formulation composing (a) one or more water-insoluble polymeric binders, (b) one or more water-soluble polymeric binders, (c) one or more sparingly water-soluble toxicants, optionally completed with other conventional materials, whereby the proportion of the components (a), (b) and (c) is such that the resulting coating layer when exposed to the surface water, wears off at such a rate that just sufficient toxicant is liberated to prevent fouling of the protected subject.

Abstract: Wood is impregnated with a solution of tannic acid followed by impregnation with a solution of a metal in the form of a salt. The metal selected is one that will complex with both the impregnated tannic acid and the wood.

Abstract: A multi-layered sheeting material is disclosed whereby conductive properties are imparted to one surface and antistatic properties are imparted to the other. In a further embodiment, the sheeting material contains a reinforcing layer. This light-weight sheeting material may be used in applications whereby the accumulation of electrical charge may be dangerous, e.g. in the presence of volatile and flammable materials.

Abstract: A method of protecting keratinous material from attack by insects that feed on keratin and from feeding damage, which comprises treating the material to be protected with compounds of the formula ##STR1## wherein each of R.sub.1 and R.sub.2 independently represents hydrogen, fluorine, chlorine, bromine, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms, or R.sub.1 and R.sub.2 in the ortho-position to each other together represent the methylenedioxy radical, and R.sub.3 represents hydrogen, cyano, --C.tbd.CH of --CH.dbd.CH.sub.2.

Abstract: A process for treating wood consisting of boiling the wood in a solution containing alkylamine and then transferring the boiled wood to an autoclave where an alkylamine permeating solution is forced into the wood under the conditions of pressure and heat. The wood is then dehydrated under reduced pressure and is then air dried.

Abstract: A pedestal enclosure for above ground extensions of underground cables in combination with a rigid, foamed, cell-developed, insulating, polymeric, thermosetting, plastic material in which a substantial number of the cells contain encapsulated therein a gaseous state effective rodent retardant.

Abstract: The present anti-corrosive paint is for use on the inner walls of oil containers to protect said container walls from corrosion caused by micro-organisms.

Abstract: Bacteriostatic, water-insoluble complexes of zirconyl acetate with inorganic peroxides are disclosed. Peroxides operative in forming these complexes are hydrogen peroxide, alkali metal perborates and alkali metal peroxydiphosphates. Processes for in situ formation and deposition of the insoluble complexes on the surfaces of cellulosic textiles are described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-negative and gram-positive bacteria on the treated textiles. The antibacterial activity imparted to the textiles is durable to repeated laundering.

Abstract: A water-insoluble hydrophilic polymer composition capable of crosslinking at ambient temperature. The composition contains (A) a water-insoluble hydrophilic copolymer prepared by copolymerizing (a) at least one carboxyl group containing ethylenically unsaturated monomer selected from acrylic acid, methacrylic acid, maleic anhydride, fumaric acid, itaconic acid and citraconic acid, (b) at least one amino group containing ethylenically unsaturated monomer of the formula: ##STR1## where R.sub.1 -R.sub.4 are specifically defined, and (c) an ethylenically unsaturated monomer selected from (i) a monomer of the formula: ##STR2## (R.sub.6 being alkyl), (II) A MONOMER OF THE FORMULA: ##STR3## and (iii) diacetone acrylamide, and (B) a polyepoxide crosslinking agent having at least two terminal epoxy groups. The water absorption rate of the polymer can be adjusted over a wide range and has sufficient coating strength and bonding strength to withstand long periods of immersion in water.

Abstract: An electric cable assembly and method for protecting an electric cable assembly for rendering the cable repellent to rodent attacks. A non-lethal toxic chemical, such as lithium chloride, which produces lithium ions when dissolved in the saliva of an animal, is incorporated in an electric cable as either a layer within the electric cable assembly around the circumference and along the length of the cable assembly or by providing a coating on the surface of the electric cable assembly by spraying or painting thereon a mixture containing, for example, lithium chloride. A protective layer or coating may be provided around the layer or coating of the lithium ion producing chemical to protect it against moisture or other environmental conditions.

Abstract: A method of forming a prechar-layer on wood to cause it to become fire and rot retardant. In an air or a low oxygen concentration atmosphere the wood is uniformly charred at a depth of at least 3 millimeters by a high-intensity radiant heat panel. Normally the heat panel is spaced from and moved with respect to the wood. The relative velocity of the wood past the radiant panel and the panel's emitted heat flux are used to control the depth of charring. Preferably fire and/or rot retard chemicals and/or treatments are added to the formed charred layer to further increase the wood's fire and rot retardancy.

Abstract: The invention is directed towards an improved sealing solution and in particular anti-graffiti solutions. The solution is formed by combining a suitable polyvinyl alcohol with a solution or emulsion of acrylic resin to form a partially cross-linked shared polyvinyl alcohol/acrylic resin, catalyzed by exposure to heat and/or light. The properties of the solution are enhanced by the addition of a zinc complex solution containing zinc tetramine and/or an aldehyde donor such as formaldehyde or glyoxal.

Abstract: A process for extending the life of an antifouling paint film which comprises applying onto an antifouling paint film a coating of a water-permeable graft polymer prepared by polymerizing one or more vinyl monomers in the presence of a hydrophilic polymer. The coating of the water-permeable graft polymer has an excellent water-resistance and a proper water-permeability by which an antifouling agent contained in the antifouling paint film can be leached into sea water and moreover the leaching rate can be controlled. As a result, the antifouling property of the paint film is exhibited for a long period of time.

Abstract: Provided is an anti-fouling paint composition for preventing for an extended period of time fouling of submersed or submerged objects or marine structures. The paint composition comprises as an anti-fouling agent a copolymer comprised of (i) units of the formula: ##STR1## wherein R' is H or CH.sub.3 and R.sub.1, R.sub.2 and R.sub.3 are the same or different and selected from (Cl to 8) alkyl groups and a phenyl group, (ii) units of the formula: ##STR2## wherein R" is H or CH.sub.3, n is an integer of 2 to 4, R.sub.4 is Cl or (Cl to 4) alkyl group, R.sub.5 is Cl or Br and R.sub.6 is H, Cl or Br, and (iii) units of the formula: ##STR3## wherein R'" is H or CH.sub.3 and R.sub.7 is (Cl to 8) alkyl group.

Abstract: A process for finishing leather is provided in which the leather is treated with a preparation containing(1) a reaction product of(a) an epoxide and(b) a dimerized or trimerized fatty acid and(2) an etherified aminoplast precondensate.The treated leather is then dried at 50 to 120.degree. C.

Abstract: A moisture, fungi, and alkaline salt resistant laminate for floor, wall or other covering purposes comprising a moisture permeable backing layer, preferably a sized asbestos felt, a barrier layer overlying the backing layer resistant to penetration and degradation by moisture, fungi and alkaline salts, preferably a thermoplastic resin such as polyvinyl chloride or mixtures of resins having the mentioned characteristics, a resinous body layer overlying the barrier layer preferably of an open cellular character and a resinous wear layer overlying the body layer.

Abstract: By the addition of a relatively small amount of N-(phenoxyphenyl)maleimide or the corresponding 3,4-dichloromaleimide, synthetic films or plastics or woven or knitted synthetic or cellulosic fabrics can be protected against fungal and bacterial deterioration.

Abstract: A method of coating marine structures including marine vessel hulls is disclosed, the method comprising painting the surfaces of the structure to be exposed to fouling conditions in salt water including sea water and brackish water, with a paint containing certain 3-isothiazolones in an amount to control marine plant and animal life such as algae, hydroids, and barnacles.

Abstract: Foamed articles are made by causing the cross-linking of a thermosetting in, preferably a polyester resin, concurrently with the production of carbon dioxide by the reaction of a carbonate with an inorganic acid. The carbonate is mixed with the resin and the acid then folded in in a progressively accelerated blending operation, whereupon carbon dioxide is generated to foam the resin, the carbonate, acid and setting time of the resin being selected to obtain an appropriate match between the progress of the foaming operation and the setting of the foam. The foam may be made in a mold coated with resin impregnated glass fibers, the impregnating resin becoming cross-linked with the foam. The impregnating resin may also be cross-linked with a resin gel coat, the glass fibers forming a tough layer between the gel coat and the foam.

Abstract: Bacteriostatic, water-insoluble complexes of zirconyl acetate with inorganic peroxides are disclosed. Peroxides operative in forming these complexes are hydrogen peroxide, alkali metal perborates and alkali metal peroxydiphosphates. Processes for in situ formation and deposition of the insoluble complexes on the surfaces of cellulosic textiles are described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-negative and gram-positive bacteria on the treated textiles. The antibacterial activity imparted to the textiles is durable to repeated laundering.

Abstract: A composition for inhibiting an adhesion of shellfish and algae comprises a resin, a medium and a N-arylmaleimide having the formula ##STR1## wherein X represents hydrogen or halogen atom; Y.sub.1 represents hydrogen, or halogen atom or alkyl, lower alkoxy, nitro, hydroxyl, alkoxycarbonyl, carboxyl, phenyl, phenylamino, alkenyl, thiocyano, sulfone, acetylamino, or sulfamoyl group; Y.sub.2 represents hydrogen or halogen atom or alkyl, lower alkoxy, nitro or hydroxyl group and Y.sub.3 represents hydrogen or halogen atom or dialkylamino group.The inhibiting composition is coated on a fishing net, a ship bottom or other apparatus in water.

Abstract: An improved method is provided for solving the age-old problem of wood-boring marine organisms. Wooden structures which are exposed to sea water can be protected from shipworm infestation by surrounding the structure with a nonwoven fabric having an effective pore size of less than 200 microns. Nonwoven fabrics of non-cellulosic organic or inorganic fibers are suitable. A self-bonded nonwoven fabric of polypropylene fibers is preferred. The fabric has high tensile and tear strengths, good puncture resistance, and a small effective pore size. The method may be used on new structures or old ones that are already infested with marine wood-borers.

Abstract: Water-soluble multivalent metal salts of carboxyl-containing vinyl monomers are polymerized in situ in fibrous substrates and fixed therein as network polymeric structures. This finish is useful for development of flame retardance, sanitizing characteristics, and other special performance qualities in fibrous compositions and fabrics.

Abstract: A process of denaturing a lead painted surface by coating such surface with a paint containing from 0.001% to 0.5% by weight benzyldiethyl (2,6-xylylcarbamoyl methyl) ammonium benzoate and from 0.01 % to 2.0 % by weight of pepper extract.

Abstract: Compositions and processes for preventing marine fouling and preserving wool employing certain (organothiomethyl)-triorganotin, (organosulfonylmethyl)triorganotin and (N,N-disubstituted aminomethyl)triorganotin compounds.

Abstract: The new compound 1,3-dithiolo(4,5-b)pyrazin-2-ylidene-propanedinitrile 4-oxide is prepared by reacting substantially equimolar proportions of di-(sodiomercapto)methylenemalononitrile with 2,3-dichloropyrazine 1-oxide. The compound has fungicidal, algicidal and marine antifoulant utility.

Abstract: A marine surface having a coating comprising a silicone rubber-silicone oil mixture produced by cold-curing an oligomeric silicone rubber having hydroxyl end groups in the presence of a silicone oil. The coating acts as an anti-fouling composition to prevent or reduce accumulation of organisms such as barnacles, algae and the like on the marine surface during prolonged exposure to sea-water.

Abstract: A film or sheet material having antibacterial and antifungal activities is obtained by mixing a thermoplastic resin with 2-(4'-thiazolyl)-benzimidazole and N-(fluorodichloromethylthio)-phthalimide, and shaping the resulting mixture, or, alternatively, by coating a base film or sheet material on one side or both sides with a coating material containing a mixture of 2-(4'-thiazolyl)-benzimidazole and N-(fluorodichloromethylthio)-phthalimide, a mixture of 2-(4'-thiazolyl)-benzimidazole and N-dimethyl-N'-phenyl-N'-(fluorodichloromethylthio)-sulfamide, or a mixture of N-(fluorodichloromethylthio)-phthalimide and N-dimethyl-N'-phenyl-N'-(fluorodichloromethylthio)-sulfamide.

Abstract: Paper sheets, such as for use as the cover sheet of gypsum wallboard and the like, are rendered mildew-resistant by adding to the paper at the calende calender rolls an aqueous dispersion containing a heavy metal salt of quinolinolate, a paper coating binder and a colloidal suspending agent. A particularly preferred aqueous dispersion contains about 5-40% of a 30% active copper-8-quinolinolate paste concentrate; about 3-30% of a wax binder, preferably about 5-60% of an about 50% active wax emulsion such as of PARACOL 404 R; and a small amount of a generally non-thickening colloidal suspending agent preferably a xanthan gum.

Abstract: Antimicrobial properties are imparted to naturally occurring fibers, such as cotton fibers and fabrics, by intimately admixing the naturally occurring fibers with synthetic fibers prepared by extruding a spinnable solution of a synthetic thermoplastic resin and at least 0.1% by weight of an antimicrobial agent into a strand having a denier of 1.5-60 dpf. The synthetic fibers are characterized by the antimicrobial agent therein migrating to the fiber surface to form a coating thereon and then transferring to the naturally occurring fibers by physical contact as the amount of antimicrobial agent on the surface of the naturally occurring fibers diminishes. Additional antimicrobial agent then migrates to the surface of the synthetic fiber until equilibrium is re-established.

Abstract: Method and composition for applying a surface covering to a wall or like substrate. The surface covering comprises a flexible strip or sheet of substantially dry, semi-hydrated gypsum, bonded to a re-enforcing mesh or lath. The method includes the steps of coating the rear face of the surface covering sheet with aqueous latex adhesive in an amount which will transfer sufficient water from the adhesive to the gypsum to hydrate and set the gypsum, and, at the same time, invert the latex to a tacky, adherent state; and applying the adhesive-coated surface covering to the substrate.