Abstract: Improved contraceptive compositions are disclosed which comprise a spermicide or virucide, a polymeric delivery component and optionally a cosmetic ingredient. The improvement is directed to the use of certain hydrophobically modified polysaccharides as the polymeric delivery component. Quite advantageously, the hydrophobically modified polysaccharides of the present invention can alter sperm motility. Moreover, the hydrophobically modified polysaccharides can provide reduced irritation potential when used in combination with spermicides such as, for example, nonoxynol-9, which may reduce the potential for infection of sexually transmitted diseases such as HIV and herpes.

Abstract: Double-substituted, water-soluble, cellulose ethers substituted with a cationic substituent and a hydrophobic substituent are disclosed. The levels of substitution for the cationic substituent and the hydrophobic substituent can provide enhanced properties when used in personal care compositions, such as, for example, enhanced substantivity, saline capability and low irritation potential to mucosal linings.

Abstract: The invention relates to a method for topical application of a pharmaceutically or therapeutically active agent through the use of a covalent chitosan derivative or chitosonium polymer. The present invention is particularly well suited for the topical delivery of pharmaceutically active quaternary ammonia compounds of the formula: ##STR1## wherein R is alkyl having between 5 and 11 carbon atoms.

Abstract: Described herein is a composite structure comprising a dielectric substrate surface with an electrically conductive layer or pathway thereon. The pathway comprises a thermoset resin and sufficient electrically conductive metal, in the configuration of an electric circuit element, to provide desired properties and direct solderability. Direct solderability is achieved without plating the electric circuit element. It has a low surface resistivity, preferably less than 10 m ohm per square. Also described are conductive, thixotropic inks for printed circuit devices which include silver powder and silver flake in its composition. A thixotropic adhesive for bonding the electric circuit element to the dielectric substrate surface is also taught. A method for making the composite structure is further disclosed.

Abstract: This invention relates to an adhesion promoting composition and method for its use for promoting adhesion of printed circuits on thermoplastic substrates. The composition includes isopropanol with either methylene chloride or resorcinol. An added ingredient includes polycyclohexanone. The preferred substrate is polyarylsulfone.

Abstract: This invention relates to a solder mask composition for thermoplastic substrates. The solder mask has critical components which include a polyhydroxyether and melamine formaldehyde. Other components include a solvent, filler and flow control agent. Optional ingredients include a colorant, epoxy resin and acid to promote the reaction of the composition. A surfactant can also be included. The solder mask provides the necessary flexibility and adhesion required for thermoplastic circuit boards. The mask can be applied directly to a circuit board or to a transfer medium for subsequent covering of a substrate. It relates to an article which can be a circuit board. It also relates to a process for making such composites which includes processing the solder mask.

Abstract: Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxylic acids. The grafted resins have improved adhesion to smooth surfaces, can be readily emulsified, and are also useful in coatings for magnetic recording media.

Abstract: Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxylic acids. The grafted resins have improved adhesion to smooth surfaces, can be readily emulsified, and are also useful in coatings for magnetic recording media.

Abstract: Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxylic acids. The grafted resins have improved adhesion to smooth surfaces, can be readily emulsified, and are also useful in coatings for magnetic recording media.

Abstract: Phenoxy resins are acid-grafted by reaction of secondary hydroxyls with monoanhydrides of di- or polycarboxylic acids. The grafted resins have improved adhesion to smooth surfaces, can be readily emulsified, and are also useful in coatings for magnetic recording media.

Abstract: Divalent metal complexes of novolacs act as modifiers for alkyds, drying oils, epoxy esters, epoxy resins and thermoplastic polyhydroxyethers. Lamellar, non-lamellar and spherical pigments improve corrosion and salt spray resistance of coatings made from these compositions.

Abstract: Zinc rich, solvent resistant and corrosion resistant coatings are prepared by blending zinc pigment, a thermoplastic polyhydroxyether and an organic dianhydride or polyanhydride.

Abstract: Manganomanganic oxide fume or a material containing manganomanganic oxide fume as its principle ingredient is used as a color pigment in the production of thermoplastic articles and particularly thermoplastic films.

Abstract: Zinc rich coatings with improved corrosion resistance are provided by a composition consisting essentially of zinc pigment, thermoplastic polyhydroxyether or thermosetting epoxy resin, an organosilane or its hydrolyzates and optionally aluminum trihydrate, and one or more dispersing agents.

Abstract: Corrosion inhibitive pigments are prepared by sintering manganomanganic oxide with stoichiometric amounts of oxides of calcium, zinc, barium, magnesium, or strotium or a mixture of calcium and boric acid at a temperature of about 500.degree. to about 800.degree. C.

Abstract: Manganomanganic oxide or a material containing manganomanganic oxide as its principle ingredient is used as a colorant with good staining and retention properties in compositions of water emulsion based coatings.

Abstract: Manganomanganic oxide fume or a material containing manganomanganic oxide fume as its principle ingredient is used as a color pigment in the formulation of solvent-base paints.

Abstract: Paint formulations employing zinc and manganomanganic oxide fume or a material containing predominantly manganomanganic oxide fume as a corrosion inhibitive system.

Abstract: A zinc-rich coating for use on metallic substrates contains particulate zinc, thermoplastic polyhydroxyether and zinc phosphosilicate.

Abstract: Silicone rubber is treated with certain gas plasmas at low pressures and ambient temperatures to improve the adhesion of a polyurethane coating to the silicone rubber.