Abstract: A wound dressing composition comprising a partially cured polyurethane fluid. The composition can be injected directly into a wound, where it cures to form a wound filling dressing. Also provided is a wound dressing comprising such a composition. Also provided is a kit for the preparation of such wound dressings, the kit comprising (a) a polyurethane prepolymer; and (b) a curing agent for the polyurethane prepolymer. Preferably, the polyurethane components comprise reaction products of a diisocyanate with castor oil or a related ester of ricinoleic acid or its derivatives.

Abstract: A wound dressing composition comprising a partially cured polyurethane fluid. The composition can be injected directly into a wound, where it cures to form a wound filling dressing. Also provided is a wound dressing comprising such a composition. Also provided is a kit for the preparation of such wound dressings, the kit comprising (a) a polyurethane prepolymer; and (b) a curing agent for the polyurethane prepolymer. Preferably, the polyurethane components comprise reaction products of a diisocyanate with castor oil or a related ester of ricinoleic acid or its derivatives.

Abstract: A wound dressing composition comprising a partially cured polyurethane fluid. The composition can be injected directly into a wound, where it cures to form a wound filling dressing. Also provided is a wound dressing comprising such a composition. Also provided is a kit for the preparation of such wound dressings, the kit comprising (a) a polyurethane prepolymer; and (b) a curing agent for the polyurethane prepolymer. Preferably, the polyurethane components comprise reaction products of a diisocyanate with castor oil or a related ester of ricinoleic acid or its derivatives.

Abstract: A wound dressing composition comprising a partially cured polyurethane fluid. The composition can be injected directly into a wound, where it cures to form a wound filling dressing. Also provided is a wound dressing comprising such a composistion. Also provided is a kit for the preparation of such wound dressings, the kit comprising (a) a polyurethane prepolymer; and (b) a curing agent for the polyurethane prepolymer. Preferably, the polyurethane components comprise reaction products of a diisocyanate with castor oil or a related ester of ricinoleic acid or its derivatives.

Abstract: A polyvinylpyrrolidone(PVP)/Silver Sulfadiazine (SSD) hydrogel dressing in which the gel is formed by the use of electron beam (E-Beam) radiation to cross-link the polyvinylpyrrolidone (PVP); in which the color of the hydrogel dressing has been stabilized by the addition thereto of magnesium trisilicate and, optionally but preferably, also hydrogen peroxide and/or polyacrylic acid is disclosed; and also the process of stabilizing the color by adding magnesium trisilicate, to a water dispersion of PVP and SSD before it is exposed to E-Beam radiation is disclosed.

Abstract: Skin damage, i.e., the stripping of tissue cells from the stratum corneum, caused by removal of a backing material which has been held in adherent contact with a skin surface by means of a pressure sensitive adhesive composition coated on the backing material, is markedly reduced by incorporation of about 4 to 20% by weight of an unreacted polyol uniformly dispersed in the water-insoluble pressure sensitive adhesive mass. Suitable polyols include polyethylene glycol and polypropylene sorbitol monolaurate. This improved mass finds special application for use in conjunction with adhesive bandages or rolled tapes composed of a backing material of a plasticized film of polyvinyl chloride. Remarkably, the reduction in skin damage is accomplished without sacrificing low mass transfer to skin upon removal of the backing material, cohesive strength, adhesion, or wearability, all of which are highly desirable properties of pressure sensitive adhesive tapes and bandages.

Abstract: Disclosed is a process for the uniform cure of polyurethane elastomers including the steps of mixing polyurethane prepolymers, having free isocyanate groups, with a stable curing agent complex to form a blend, thereafter transferring it to a suitable mold and subjecting it to a predetermined amount of microwave energy until it is substantially cured.

Abstract: Amine curable polymers or prepolymers such as urethanes are cured by the use of a methylene dianiline complex or a racemic 2,3-di(4-aminophenyl) butane complex in the presence of a high dielectric constant catalytic compound which is relatively non-reactive with amines and isocyanates and exclusive of halogen containing foaming agents, halogen containing acids, and halogen containing flame retardants, so that increased cure rates, decreased cure temperatures or both are readily obtained.