Abstract: A storage and dispensing container includes a base having an open end and a receptacle. A first divider is secured in the receptacle. A second divider is pivotally secured to the first divider, and defines a first compartment with the first divider. The first compartment has a size that is selectively adjustable by pivoting the second divider relative to the first divider.

Abstract: A storage and dispensing container includes a base having an open end and a receptacle. A first divider is secured in the receptacle. A second divider is pivotally secured to the first divider, and defines a first compartment with the first divider. The first compartment has a size that is selectively adjustable by pivoting the second divider relative to the first divider.

Abstract: An iontophoretic device having a two-layer active electrode element is disclosed. The active element is composed of overlapping skin contact hydrogel and carrier layers. The carrier layer contains dispersed or dissolved active agent. The active electrode element maintains the active agent in stable form and permits efficient transport of the active agent to the host. Also disclosed is an iontophoretic device having a single layer active electrode element. The single layer is a hydrogel as manufactured or substantially dry and capable of being hydrated before use. The skin contact hydrogel of the two-layer active electrode element preferably.

Abstract: A polymeric, amphoteric hydrogel for use in medical devices and medical devices using the hydrogel. The hydrogel has a first polymer repeating unit having a acid group and a second polymer repeating unit having a base group such that the acid groups and base groups are present in the hydrogel in amounts effective to provide a hydrogel with a strong, amphoteric, nonmobile ionic structure. For example, the hydrogel can be a copolymer of 2-acrylamido-2-methylpropane sulfonic acid and methacrylamido-propyl-trimethylammonium hydroxide. The hydrogel can be an adhesive used to adhere medical devices to the skin of a patient. It can be particularly useful in drug delivery applications such as in iontophoresis devices.

Abstract: An iontophoretic device having a two-layer active electrode element is disclosed. The active element is composed of overlapping skin contact hydrogel and carrier layers. The carrier layer contains dispersed or dissolved active agent. The active electrode element maintains the active agent in stable form and permits efficient transport of the active agent to the host. Also disclosed is an iontophoretic device having a single layer active electrode element. The single layer is a hydrogel as manufactured or substantially dry and capable of being hydrated before use. The skin contact hydrogel of the two-layer active electrode element preferably.

Abstract: Biocompatible heparin-like material and surfaces thereof are made by co-polymerization of acrylic acid (AA) and 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and attaching the copolymer to a suitable substrate or blending the copolymer into a suitable substrate. The material produced also possesses surface slip-properties and some decreased bacterial and platelet adherence.

Abstract: A thickened alcoholic antibacterial composition is provided which contains as a thickener a polymer having as the recurring structural unit an acrylamidoalkanesulfonic acid monomer or ammonium salt thereof. Methods of thickening an alcoholic antibacterial composition and methods of controlling bacteria with such compositions are also provided.

Abstract: Carbonaceous slurries are provided in which the carbonaceous slurry stabilizer is selected from the group of(1) the alkyl ether of a polygalactomannan alone, or in combination with xanthan gum or(2) the hydroxyalkyl ether of a polygalactomannan in combination with xanthan gum, or(3) a mixture of said alkyl ether, said hydroxyalkyl ether and said xanthan gum.

Abstract: A thickener composition is comprised of a polymer having as the major recurring structural unit an acrylamidoalkanesulfonic acid or derivative thereof and a polyvalent metal crosslinking agent is provided. The compositions are useful for thickening aqueous solutions within a specified range of pH. The thickener is effective even in aqueous compositions having high levels of electrolytes.