Abstract: This invention relates to a polymeric composition for application onto Reemay and Satin acetate fabric for laser printability with a high level (90% or greater readability of printed characters, washability and enzyme rejection/retardation. The polymeric composition is applied by chemical grafting that involves the use of monomers/prepolymers, catalyst, graft initiator and other ingredients of the composition. The coating thus developed and subsequently applied to Reemay and Satin acetate fabric allows to undergo graft polymerization thereby forming a polymeric film which is chemically bonded to the fabric substrate with strong adhesion. The chemically grafted fabric is highly durable and permanent in terms of distinct legibility of the printed characters on the substrate after 55 launderings or 25 dry cleanings and has excellent level or enzyme rejection/retardation when the coated fabric with laser printed characters are subjected to an enzyme wash process.

Abstract: Natural or synthetic wax dissolved in the continuous organic phase of an water-in-oil emulsion retards evaporation of water from a dispersed aqueous phase. An in situ prepared equilibrium mixture of benzyl alcohol, formic acid and benzyl formate emulsified with oleic hydroxyethyl imidazoline or similar oil soluble emulsifying agent is thickened with hydroxypropyl cellulose or hydroxypropyl methylcellulose and contains 0.1 to 1.0% by weight paraffin wax with a melting point of 47.degree. to 65.degree. C. Wax dissolved in the organic phase retards evaporation of water, and formic acid or ammonia which are very volatile in comparison with benzyl alcohol forming the major component of the organic phase. A petroleum distillate is used to pre-wet a hydroxypropyl cellulose thickener and dissolve the wax.

Abstract: A method of forming a polymer backing on a glass substrate through the use of a pre-polymer powder applied onto the surface of the substrate. The backing is applied on-line in an existing substrate manufacturing or fabricating process while the substrate is at a high enough temperature to polymerize the powder. The resulting backed substrate is durable and abrasion resistant and exhibits excellent opacification and adhesion properties.

Abstract: The present invention relates to improving the durability of water repellent films and a method for providing the film on a substrate. The water repellent film is preferably formed over the substrate by applying a water repellent composition over the substrate which will form the water repellent film. The durability of the water repellency of the film is improved by activating the substrate with an acid prior to forming the water repellent film over the substrate.

Abstract: A method for coating surfaces of a non-conductor with finely particulate solid particles by substrate-induced coagulation, including the steps of: contacting the non-conductor with a first solution containing a first polar solvent and at least one coagulation initiator comprising high molecular weight material; and, subsequently contacting the non-conductor with a dispersion which contains a second polar solvent and: a) finely particulate solid particles, b) at least one surfactant for preventing the sedimentation of the solid particles, and c) a salt, essentially free of tin ions, for selectively destabilizing the dispersion.

Abstract: A substrate such as a catheter or a guide wire is provided with a lubricous, hydrophilic abrasion-resistant coating by:a) coating said substrate with a first aqueous coating composition comprising an aqueous dispersion or emulsion of a polymer having organic acid functional groups and a polyfunctional crosslinking agent having functional groups capable of reacting with organic acid groups, and drying the coating to obtain a substantially water-insoluble coating layer having excess polyfunctional including functional groups being reactive with organic acid groups remaining, andb) contacting the dried coating layer obtained in a) with a second aqueous coating composition comprising an aqueous solution or dispersion of a hydrophilic polymer having organic acid functional groups, and drying the combined coating, the hydrophilic polymer thereby becoming bonded to the polymer of the first coating composition through the excess crosslinking agent.The drying can be carried out at ambient (room) temperature.

Abstract: The present invention is a plastic container coated with a multi-layer barrier coating. The multi-layer barrier coating is useful for providing an effective barrier against gas permeability in containers and for extending shelf-life of containers, especially plastic evacuated blood collection devices.

Abstract: Methods for improving the corrosion inhibition of a metal or metal alloy substrate surface are provided wherein the substrate surface is coated with a polyaniline film. The polyaniline film coating is applied by contacting the substrate surface with a solution of polyaniline. The polyaniline is dissolved in an appropriate organic solvent and the solvent is allowed to evaporate from the substrate surface yielding the polyaniline film coating.

Abstract: A method of forming a protective coating on aluminum and aluminum alloy surfaces to improve adherence of siccative coatings such as inks, paints, and lacquers. The method involves rinsing acid treatments from aluminum surfaces followed by coating the aluminum surfaces with a polymeric composition. The method provides improved adhesion of siccative coverings to treated aluminum surfaces over chrome containing and non-chrome containing fluoroacid and polymer mixture treatments.

Abstract: Absorption retardant substances, such as water-repellents, are applied to ballistic energy absorbing fabric before the fabric is encased in a resin system to form an armor piece. Tiles made from boron carbide, other ceramic material or steel can be attached to or incorporated into the cured resin and fabric system to make composite structural armor pieces. The fabric can be made from polyaramid fibers or fiberglass fibers.

Abstract: A siloxane composition is described comprising a polydiorganosiloxane have at least two unsaturated hydrocarbon groups per molecule, a polyorganohydrosiloxane network crosslinker that has at least three Si--H bonds per molecule, a silane or siloxane crosslinker that has at one --SiH.sub.3 group, a hydrosilation catalyst, and, optionally, a siloxane rheological control agent. The composition allows gels to be prepared that exhibit good adhesion to various substrates, and can also be used to temporarily inhibit catalyst activity. Prostheses and coatings can be produced with these compositions.

Abstract: Disclosed is a process for reducing volatile organic compound emissions during the processing and coating of articles contaminated with water insoluble contaminants. The process prevents the formation of undesired etching and pitting which increases the surface area of an article. The use of volatile organic compound-containing surface coatings is thereby reduced resulting in reduced volatile organic compound emissions. The process of the present invention includes contacting a surface with a terpene finishing agent to remove water insoluble contaminants from such surface and applying an amount of volatile organic compound-containing coating to effectively cover the surface at a desired coating thickness.

Abstract: An electrode is disclosed for use in a wound nickel metal hydride electrochemical cell. The electrode has an electrochemically active material carried on the substrate. The electrode includes the improvement of an effective amount of an elastic binder coating the outer surface of the active material to enhance the integrity of the electrode and to substantially inhibit infantile shorting during operation thereof.

Abstract: This invention provides a dispersion composition comprising (a) water and (b) a silylated epoxy resin prepared by reacting (i) a silane having at least two silicon atoms each bearing at least one hydrolyzable group and attached to a secondary amine by a hydrocarbon and (ii) a resin containing at least two epoxy groups and methods of using the dispersion.

Abstract: Coated glass containers having a surface cured composition which is the reaction product of at least one ethylenically unsaturated monoene, a polyene and a curing initiator. The coating is bonded to the exterior or interior surface of a glass container to increase hardness and strength.

Abstract: Coatings of hydrophilic organic polymers such as polyvinyl alcohol are grafted to substrates formed from hydrophobic organic polymers and polyorganosiloxanes by exposing the surface of the substrate to an aqueous solution of the hydrophilic poller in the presence of a solubilized compound of tetravalent cerium that preferably contains hydroxyl or amino groups as ligands.

Abstract: A heat exchanger is immersed in a hydrophilic-film-forming solution in order to form a hydrophilic film on the surface of the heat exchanger. The film applied on the heat exchanger is then dried to a semi-dry state and while this film is semi-dry, an antimicrobial agent is permeated into the hydrophilic film. Then it is completely dried. By following this process, it is possible to permeate a large amount of antimicrobial agent near the surface of the film, increasing the antimicrobial effect and at the same time, the effect is retained over a long period of time because the antimicrobial agent is not coated on the surface and, therefore, is not washed away with water.

Abstract: A method for painting a plastic lineal member comprises heating the surface of the lineal member to a temperature greater than about 130.degree. F., coating the lineal member with an aqueous solution, drying the lineal member, painting the lineal member, and curing the paint on the lineal member.

Abstract: The inability of organosiloxane compositions containing an organohydrogensiloxane as the curing agent and a platinum group metal-containing catalyst to cure completely on substrates containing residues of solder fluxes or other cure-inhibiting materials can be remedied by coating at least that portion of the substrate containing the residue with a layer of an organosilicon compound containing at least two silicon-bonded hydrogen atoms per molecule prior to application of the curable organosiloxane composition.

Abstract: The invention relates to the chemical bonding of a polymer or polymers onto a non-metallic substrate such as cellophane by contacting the substrate with a grafting solution that contains monomers, prepolymers, catalysts and possibly other ingredients, to obtain graft polymerization onto the substrate with intimate bonding of the polymer onto the substrate surface, and curing the polymer on the substrate by microwave, laser or ultrasonic energy. The invention provides a method where the bonding of the polymer is effected solely by physical rather than chemical means by eliminating the use of silver nitrate in the pretreatment step and using microwave, laser or ultrasonic energy to polymerize the monomers and binding the resulting polymer to the substrate, with the resulting grafted polymer having the same characteristics as if the bonding was effected chemically with silver ions or colloidal silver.

Abstract: The present invention provides a method of manufacturing an optical fiber coating with a greater adhesive strength between the primary coating layer and the colored layer as the secondary coating layer. This method prevents the colored layer from being removed together with the bundle coating layer when the bundle coating layer is removed, for example, prior to joining. A colored layer is provided on the outer circumference of the primary coating layer while keeping the surface of the primary coating layer in an unhardened state to thereby improve the adhesive strength between the primary coating layer and the colored or secondary layer.

Abstract: This invention provides an improved process for producing a thin film of addition polymer on a substrate by laser ablation wherein the molecular weight of addition polymer is controlled by conducting the process in the presence of at least one additive selected from chain transfer agents or polymer initiators.

Abstract: A composite metal powder composition according to the present invention is a composition containing composite metal powder obtained in such a manner that an isocyanate compound is chemically bonded to the surface of surface-treated metal particles and a phosphorus compound is further chemically bonded to the isocyanate compound through an urethane bond and can be used as an excellent pigment for an aqueous paint.

Abstract: An apparatus for application of controlled amounts of cyanoacrylate adhesive catalyst solution to a substrate is disclosed. The apparatus includes an absorbent, wicking material that is permeated with catalyst solution. By contacting the permeated wicking material with the substrate, controlled amounts of catalyst solution may be applied to delimited areas of the substrate. The apparatus, which may have a configuration similar to that of a felt tip marking pen, allows convenient use of low-volatility solvents in the catalyst solution. Also disclosed is a method for application of catalyst solution and cyanoacrylate adhesive to a substrate. A dye or other colorimetric substance may be added to the catalyst solution to allow for visualization of the amount and location of catalyst solution on the substrate.

Abstract: A room temperature curing polyurethane composition is bonded to the surface f cables having jackets of an olefin/ester interpolymer to provide a water resistant seal thereabout by first exposing the surface of a length of cable to an alkali metal hydroxide solution to hydrolyze the functional ester groups and thereby substitute hydroxyl groups for the organic acid of the ester in the interpolymer at the surface of the jacket. A diisocyanate primer is applied to the treated surface and it interacts with the hydroxyl groups to produce pendant reactive groups. A room temperature curing urethane prepolymer composition is then molded about the primed surface at ambient temperatures and the unreacted hydroxyl groups along the urethane prepolymer chain react with the pendant reactive groups of the jacket to produce a firmly bonded overmolding on the jacket.

Abstract: Disclosed is a process for the preparation of an electroconductive polymeric material, comprising the steps of forming fine grooves in a substrate, embedding a polymerization reaction catalyst in the fine grooves, and bringing a monomer capable of forming an electroconductive polymeric material into contact with the catalyst embedded in the fine grooves to selectively form fine wiring of the electroconductive polymeric material in the grooves. According to this process, a polymeric material oriented in the longitudinal direction of the fine grooves can be prepared, and therefore, a polymeric material having an excellent electroconductivity can be provided.

Abstract: A method for manufacturing a polyester film is disclosed which comprises a polyester film before completion of orienting crystalization and, provided thereon, a sublayer comprising a copolymer containing 70 to 99.5 wt % of vinylidene chloride, and an antistatic layer comprising an ionic polymer, in that order. A coating solution is coated on the polyester film to form the sublayer with a dry thickness of 1 to 20 g/m.sup.2. The total solid content of the coating solution is not less than 4 wt %, and the coating solution contains a latex of the copolymer with an average particle size of 0.05 to 0.3 .mu.m. Heat is applied at a temperature not less than 30.degree. higher than the melting point of the copolymer, and the antistatic layer is formed on the sublayer.

Abstract: The invention relates to the chemical bonding of a polymer or polymers onto a non-metallic substrate such as cellophane by contacting the substrate with a silver nitrate solution followed by treatment with an alkali hydroxide such as sodium hydroxide or potassium hydroxide, whereby particles of silver or silver oxide are uniformly distributed in situ throughout the surface of the substrate, contacting the thus treated substrate with a grafting solution that contains monomers, prepolymers, catalysts and possibly other ingredients, to obtain graft polymerization onto the substrate with intimate bonding of the polymer onto the substrate surface, and curing the polymer on the substrate by microwave or laser energy.

Abstract: A method of adhering a polyimide to a substrate includes first placing the substrate in a dilute acid solution. The substrate is then placed in a palladium and tin solution followed by a rinse with water. The rinsed substrate is placed in an accelerator solution to substantially remove the tin from the substrate. The palladium which remains on the substrate surface provides nucleation sites for adhesion promotion and enhanced wetting of polyimide which is applied in a liquid form as by spraying or spinning. Adhesion of polyimide to metals such as gold, ceramics, alumina or polyimide is thereby provided.

Abstract: Articles of protective wear are normally designed to protect a wearer against one or one group of hazardous materials such as chemical warfare agents. Such chemical warfare protective wear is normally made out of a butyl rubber as butyl rubber provides favorable impermeation protection against a wide variety of both chemical and biological warfare agents while having excellent physical properties. However, the protection provided by butyl rubber based protective wear is seriously reduced when exposed to hydrocarbons as the butyl rubber based protective wears' impermeation integrity is severely impaired. This problem is solved by using an article of protective wear which has a multilayer/multipolymer configuration so that enhanced protection against more than one type of material, such as hydrocarbons and chemical warfare agents, is provided.

Abstract: According to the invention, a chemically adsorbing material is reacted with a substrate surface having active hydrogen groups by dipping the substrate into a solution of the chemically adsorbing material simultaneous and applying ultrasonic waves to the solution. In this way, a high concentration monomolecular and/or polymer film substantially free from pin holes can be formed in a short period of time. That is, while the ultrasonic waves are applied, a chemical adsorbing material having an end functional chlorosilyl group is adsorbed onto the substrate surface, thereby forming a chemically adsorbed monomolecular and/or polymer film. The frequency of the ultrasonic waves are suitably in a range of 25 to 50 kHz. In addition, after formation of the adsorbed film, the substrate is washed for making monomolecular film by dipping it in a washing solution while applying ultrasonic waves. In this way, non-reacted chemical adsorbing material remaining on the substrate can be efficiently washed away.

Abstract: Surfaces of silica-containing materials, such as the inner walls of silica capillaries, used in chromatographic, particularly electrophoretic, separations are coated with an organic polymer layer to reduce or eliminate surface charges. The layer is applied by first converting the silanol groups on the surface to silicon halide groups, then reacting these groups with an organometallic reagent having a terminal ethenyl moiety, preferably vinyl or allyl lithium or a vinyl or allyl magnesium halide, to convert the silicon halide groups to Si--R groups where the R retains the terminal ethenyl moiety, and finally reacting these ethenyl groups newly attached to the surface with a neutral organic monomer in an addition polymerization reaction to form a monomolecular noncrosslinked polymer layer over the surface. The resulting polymer layer is linked to the silica directly through a Si--C bond which is stable over a wide range of pH conditions.

Abstract: A method and apparatus for generating lubricant at the head/disk interface throughtout the life of a disk drive utilizing friction at the slider/disk interface to activate the polymerization of a monomer at the catalytic surface on the slider and/or the disk surface. The monomer is supplied to the catalytic surface through the vapor state from a reservoir.

Abstract: A molded article of a crystalline thermoplastic resin is electrostatically coated by preparing the molded article from a composition comprising 100 parts by weight of the crystalline thermoplastic resin and 2 to 100 parts by weight of one or more electrically conductive fillers. The surface of the molded article is roughened so as to expose the electrically conductive filler on the article's surface and thereby enhance the article's electrical conductivity. Surface roughening of the article may be accomplished through (1) chemical techniques and/or (2) physical techniques. The thus surface roughened article may then be electrostatically spray coated.

Abstract: A method for producing smooth uniform polymethylmethacrylate (PMMA) layers having a thickness of greater than 20 .mu.m. The PMMA layers are produced utilizing a solution of polymethylmethacrylate in an ester of lactic acid. The PMMA layers are particularly suited for micro-structuring techniques which utilize high-energy, ionizing radiation. The PMMA layers exhibit a good adhesion to metallic, semi-conducting and insulating substrates.

Abstract: A method for bonding together rubber vulcanizates and urethane elastomers to form a composite comprising treating an outer surface of the rubber vulcanizate with a first solution of an organic compound containing a ##STR1## linkage dissolved in a solvent where X is a halogen, then coating the treated surface with a second solution of a diphenylmethane diisocyanate-based compound dissolved in a solvent and thereafter casting a urethane elastomer over the coated surface and curing the composite.

Abstract: A sprayable ablative coating formulation comprises a combination of a polymeric resin, a curing agent, cork flour and a vehicle such as toluene. The mixture is sprayable using conventional spray equipment. The surface to be coated is first sprayed with a primer to improve adhesion, and the mixture is then sprayed over the primed surface until a desired thickness if formed. Once cured, the coating has a uniform fine texture and thickness, providing thermal insulation for the coated surface. Pigments may be added to the formulation to achieve specified coloration of the coating.

Abstract: The invention relates to a quaternary ammonium salt primer for bonding surfaces with cyanoacrylate adhesives, and to a method of bonding surfaces using such quaternary ammonium compounds, particularly surfaces characterized by low surface energy values, such as polyolefins and rubber-modified polyolefins. A preferred quaternary salt is tetra n-butyl ammonium fluoride. Preferred solvents for the quaternary ammonium salt are non-aqueous, low surface tension organic solvents.

Abstract: Rubber and vinyl articles such as gloves with improved slip coatings and processes for their production are provided by coating the outer and/or inner surfaces with either (1) a copolymer of at least one copolymerizable vinyl halide, at least one copolymerizable ethylenically unsaturated hydrocarbon and at least one copolymerizable ethylenically unsaturated monomer containing a carboxyl or amido group, (ii) copolymer of at least one copolymerizable vinyl or vinylidene halide, acrylonitrile and at least one acryulic monomer, or mixtures of (i) and (ii).

Abstract: A method for producing a heat sealable structure includes coextruding a substrate layer including a white opaque, cavitated polyolefin film with a second layer which includes a heat sealable ethylene propylene random copolymer, ethylene-propylene block copolymer or ethylene-propylene butene-1 terpolymer; biaxially orienting the coextrudate; treating to increase surface energy; applying a primer coating on the surface; and, applying a surface layer which includes vinylidene chloride copolymer.

Abstract: The invention relates to a process for strengthening the adhesion of polymeric substances which contain organic groups or are made up of such groups, or substances containing organic groups which can be crosslinked to form polymers, to surfaces containing an inorganic carbonate, preferably alkaline earth metal carbonates, which comprises applying a solution of a phosphorus compound to the surface containing an inorganic carbonate, in which the phosphorus compound is a phosphorus acid or a phosphorus-containing organosilicon compound having at least one group of the formulaRSiOP.dbd.O,in which R is an SiC-bonded, monovalent, substituted or unsubstituted hydrocarbon radical, and the solvent is an aprotic organic solvent, removing the solvent and thereafter applying the polymeric substance or substance which can be crosslinked to form a polymer to the surface containing the inorganic carbonate.

Abstract: A method for providing a polyolefin resin substrate with an adhesive coating having high adhesiveness and thermal resistance comprising the following steps:1. coating the surface of said polyolefin substrate with a primer film having at least 2 hydroxy groups, and2. coating said primer film with a molten layer of moisture setting hot melt urethane adhesive composition comprising a urethane prepolymer containing at least 2 NCO radicals.

Abstract: A conducting layer such as an additional wiring pattern or an electromagnetic insulation layer is formed on a conducting surface such as of a printed circuit board with an insulating layer being interposed therebetween, by a method which includes the steps of:(a) providing a liquid thermosetting composition containing an epoxy resin, a curing agent, a polymerizable compound having at least two acrylate or methacrylate groups and a photopolymerization initiator;(b) applying the composition to the conducting surface to form a coated layer;(c) irradiating actinic light on the coated layer to polymerize the polymerizable compound and to obtain a solid, thermosetting layer,(d) heating the thermosetting layer to cure the epoxy resin and to form the insulating layer; and(e) forming an electrically conducting layer on the cured resin layer. Steps (b) and (c) are repeated until the solid thermosetting layer has a desired thickness. Step (d) may be performed before or after step (e).

Abstract: An autodeposition bath for coating steel and similar metals is operated initially with a low content of dissolved iron and at a high oxidizing potential. After the iron content has increased beyond a specific level, such as 1.5 g/l, the oxidizing potential is reduced. This permits continued satisfactory operation of the bath with lower rates of iron accumulation in the bath, so that the need for bath stabilization by removing dissolved iron is deferred.

Abstract: A novel primer composition containing a partial hydrolyzate of an aminoalkyl-substituted trialkoxysilane, a carboxylic acid salt of tin and a solvent is applied to a moisture-cured silicone substrate and dried to improve the adhesion of a subsequently applied coating. The composition and method are of particular value for painting a moisture-cured silicone substrate disposed on a support, such as a building sealant used on a window assembly or an encapsulant used on an electrical device.

Abstract: Soft material flat gasket useful as an exhaust flange gasket, a cylinder head gasket or a secondary gasket for internal-combustion engines includes a porous soft material and a crosslinked impregnating agent included in the porous soft material. The crosslinked impregnating agent is comprised of a silicone resin and is the crosslinked product of at least one liquid polysiloxane having reactive hydrogen groups. Crosslinking of the at least one liquid polysiloxane proceeds in the presence of an effective amount of a catalyst, which catalyst is introduced into the porous soft material prior to introduction therein of the at least one liquid polysiloxane according to the inventive method of manufacture.

Abstract: An optical fiber which comprises a light-guiding glass fiber and a coating around the glass fiber, the coating consisting of at least two layers of polyorganosiloxane resin compositions having a ladder portion and a linear portion, and a ratio of the ladder portion and the linear portion in one layer being different from that in other layer, has good strength and good thermal resistance.

Abstract: Containers which hold a flowable composition are sealed by applying a material which in contact with the flowable composition forms a protective sealing layer in the area requiring a seal. An improved container assembly is disclosed comprising a cartridge containing a flowable composition and a piston inserted into one end of the cartridge to express the flowable composition therefrom, wherein the gap between the cartridge and the piston is sealed by a protective layer produced by reaction of the flowable composition and material applied to the surface of the flowable composition.

Abstract: An insert injection molding method is characterized by using an insert member having an applied surface coating comprised of an organic polymer compound, and at least one compounds selected from the group consisting of spiro ortho ester compound, spiro orthocarbonate compounds, trioxacylooctane compounds, and ketal lactone compounds.

Abstract: This invention relates to the use of low temperature plasma technology for significantly improved corrosion protection of steel. The plasma process involves pretreating of the steel surfaces by oxygen plasma and thin film deposition by polymerization of certain precursors on the steel. The process utilizes DC power, substrates as the cathode, magentron anodes, and system pressures of 0.01-0.5 torr. After the thin film plasma deposition it is also preferably to put a primer coating over the thin film.