Abstract:
This invention relates to heterogenous pore polymer nanotube membranes useful in filtration, such as reverse osmosis desalination, nanofiltration, ultrafiltration and gas separation.
Abstract:
Block copolymers can be self-assembled and used in methods as described herein for sub-lithographic patterning, for example. The block copolymers can be diblock copolymers, triblock copolymers, multiblock copolymers, or combinations thereof. Such methods can be useful for making devices that include, for example, sub-lithographic conductive lines.
Abstract:
A method to deposit a thin film on a flexible polymer substrate at room temperature comprising heating source vapor, which is vaporized by an evaporator, in a shower head in a reaction chamber so that the source vapor is thermally decomposed to be converted into the nano-size single phase; and depositing the source vapor in the nano-size single phase on the flexible polymer substrate which is not separately heated.
Abstract:
A method for furnishing a therapeutic-agent-containing medical device is provided. The method comprises: (a) providing a reactive layer comprising a cross-linking agent on a medical device surface; and (b) subsequently applying a polymer-containing layer, which comprises a polymer and a therapeutic agent, over the reactive layer. The cross-linking agent interacts with the polymer to form a cross-linked polymeric region that comprises the therapeutic agent. Moreover, in certain embodiments, the polymer-containing layer does not comprise the cross-linking agent at the time the polymer-containing layer is applied over the reactive layer. Examples of medical devices include implantable or insertable medical devices, for example, catheters, balloon, cerebral aneurysm filler coils, arterio-venous shunts and stents.
Abstract:
The invention relates to various methods for modifying material properties during solid-state impact consolidation of coatings and free-form fabrication of structures. The invention discloses a new method for modifying the physical and chemical properties of the substrate, coating, and free-form structure during and simultaneous to impact consolidation and accretion of powders using a solid-state deposition process. The physical and chemical properties of the substrate, coating, and free-form structure in close proximity to the impact consolidation process can be modified by heating or by exposing to gaseous and liquid environments. Heating of the substrate, coating, or free-form structure up to annealing temperatures for most materials significantly reduces the plastic deformation flow stresses and permits the impact consolidation process to enhance deposition efficiency, improve densification, anneal dislocations, and improve adhesion and cohesion through in-situ diffusion bonding.
Abstract:
A method for manufacturing a laundry additive article wherein a polymerizable or crosslinkable dye or particulate soil absorber is applied to one face of a substrate web and a cross-linker is separately applied to the coating of the dye or particulate soil absorber to cross-link the dye or particulate soil absorber on the substrate such that the dye or particulate soil absorber does not dissolve in the wash water. In accordance with one embodiment, the dye or particulate soil absorber and the cross-linker are applied as aqueous based solutions. Other laundry additives may be applied to the substrate using other coating techniques and particularly as a waxy or hot melt composition.
Abstract:
A coating composition comprising (a) 10 to 60 wt. % of one or more hydroxy-, carboxy- and/or amino-functionalized solid resins selected from the group of methacrylic resins, acrylic resins, polyester resins, polyurethane resins, epoxy modified resins with linear, branched or star structure, (b) 5 to 40 wt. % of one or more crosslinking agents for component (a), (c) 5 to 70 wt. % of a filler, such as, aluminum hydroxide, (d) 0 to 40 wt. % of a ground polymer material, (e) 0 to 35 wt. % of organic solvents, (f) 0.01 to 15 wt. % % of additives and pigments and (g) 0 to 30 wt. % reactive thinners.
Abstract:
A method is provided to manufacture a coated substrate, such as an optical fiber, without undesirable point lumps. The method filters a coating composition while controlling the filtering temperature, pressure drop across a filtering assembly, and filter pore size to achieve a resulting filtration factor not greater than 250,000 snull1. The filtration factor is a function of filtering temperature and pressure drop across the filtering assembly. Typically, the coating composition is filtered by passing the coating composition through one or more filters of the filtering assembly, having an absolute pore size rating in the range from approximately 0.05 to approximately 5 microns, at a temperature less than approximately 105null F. (40null C.), and at a pressure drop nullP across the filtering assembly of at most approximately 80 psig, wherein the ratio of pressure drop (mPa) to viscosity (mPanulls), which is dependent upon filtering temperature, minimizes the filtration factor to null250,000 snull1.
Abstract:
The present invention protects from excessive heating at least one component on an object during curing of paint at a localized area on the object by exposure to a heat source. The present invention circulates air including cold air near the at least one component to be protected. An air pocket is formed adjacent the at least one component to be protected. This air pocket has an inlet and an outlet. A cold air source is coupled to the inlet via a tubing that directs cold air from the cold air source into the air pocket. Heated air within the air pocket flows out through the outlet of the air pocket such that air circulates through the air pocket. In this manner, the temperature of the at least one component to be protected is maintained below a predetermined temperature when the localized area of the object is exposed to the heat source for curing of the paint at the localized area. In contrast to the prior art, the components to be protected are not removed, discarded, and replaced when repairing a paint imperfection on the object. Thus, the higher cost and added labor associated with such removal and replacement of the heat sensitive components are avoided with the present invention.