Abstract:
Pressure sensitive adhesives for transdermal devices. The adhesive composition is such that rates of fluid or vapor transmission can be controlled. The invention provides a fluid permeable adhesive in which a pressure sensitive polymer is blended with a cross-linked polysiloxane. Vapor or fluid transmission through the adhesive is controlled by the extent which the cross-liked polysiloxane is blended with the polymer. The adhesive can be coated on a plastic or cloth layer. The adhesive layer is protected by a release substance which is peeled upon use.
Abstract:
The invention provides a label composite that includes a print receptive layer, an intermediate extensible layer, a structural layer, and a primary adhesive. The print receptive layer is adapted to withstand temperatures up to 1200°F (649°C) without loss of any of readability, cracking, peeling or edge lifting. The intermediate extensible adhesive layer is provided on one side of the print receptive layer, and the intermediate extensible adhesive layer is capable of surviving temperatures up to 1200°F. The structural layer is adhered on a first side of the structural layer to the intermediate extensible adhesive layer, and the structural layer is adapted to withstand temperatures up to 1200°F. The primary adhesive layer is capable of surviving temperatures up to 1200°F and is adapted to form a bond between an elevated temperature material and the structural layer of the label composite.
Abstract:
A method of forming an electrically conductive composite is disclosed that includes the steps of providing a first dielectric material and a second conductive material that is substantially dispersed within the first dielectric material; and applying an electric field through at least a portion of the combined first dielectric material and second conductive material such that the second conductive material undergoes electrophoresis and forms at least one electrically conductive path through the electrically conductive composite along the direction of the applied electric field.
Abstract:
A laminate of dielectric materials is disclosed for use in protecting an electronic device. The laminate includes at least one layer of a polymeric material having an active material dispersed within the polymeric material and having a first thickness. The active material is responsive to external electric fields such that a higher voltage external electric field may be applied to one side of the laminate without any voltage passing through the laminate than a maximum voltage that could be applied to the laminate without passing through the laminate when the active material is not present within the polymeric material having the first thickness.
Abstract:
A non-conductive protective covering for an electronic device is disclosed. The protective covering includes a first polymeric film having a modulus of elasticity of at least about 100 x 10 3 psi and a second polymeric film having a modulus of elasticity of less than about 100 x 10 3 psi, wherein the first polymeric film is attached to a first side of the second polymeric film.
Abstract:
An alternating electric field responsive biomedical composite is disclosed that provides capacitive coupling through the composite. The biomedical composite includes a binder material, a polar material that is substantially dispersed within the binder material, and electrically conductive particles within the binder material. The polar material is responsive to the presence of an alternating electric field, and the electrically conductive particles are not of sufficient concentration to form a conductive network through the composite unless and until the composite becomes overcharged.
Abstract:
A formulation for application to a substrate including a mixture of a liquid having a first viscosity and an amine-acid adduct. The mixture has a second viscosity greater than the first viscosity. The amine-acid adduct is evaporative and substantially completely removed from the mixture in a functionally dry state as applied as a deposit on the substrate.
Abstract:
An alternating current responsive composite is disclosed. The composite includes a polymeric material and a polar material that is substantially dispersed within the polymeric material. The polar material is responsive to the presence of an alternating current.
Abstract:
Silicone based pressure sensitive adhesives. Adhesives must satisfy an array of specific performance requirements when used in conjunction with transdermal therapeutic devices. A pressure sensitive adhesive has been formulated having favorable adhesive, shear, liquid permeability and release characteristics. The adhesive is a crosslinked polymerization product of a methyl/phenyl siloxane gum, dimethyl siloxane gum and a polysiloxane resin. The resulting adhesive provided suitable adhesion to a variety of surfaces and particular utility as an adhesive between plastic film and human skin as in transdermal therapeutic devices.
Abstract:
A label applicator is disclosed for use in attaching a high temperature resistant label to substrates at temperatures of at least 350°C. The label applicator includes an extension member (58) attached to a label containment area, the label containment area including at least one edge restraint (54) for retaining the label and a backing area that includes a surface with a low specific energy that inhibits adhesion of a printed side of the label to the backing area of the containment area.