摘要:
A method for lubricating a low surface energy polymeric surface includes plasma treatment of the surface. A film of a polysiloxane lubricant is applied to the plasma-treated surface to give an even coating of the lubricant which is stable for a protracted period of time.
摘要:
A leach resistant composition includes a quaternary ammonium complex of heparin and a silicone. A method for applying a coating of the composition to a surface of a medical article is within the purview of the present invention. Medical articles having surfaces which are both lubricious and antithrombogenic, are produced in accordance with the method hereof.
摘要:
A leach resistant composition includes a quaternary ammonium complex of heparin and a silicone. A method for applying a coating of the composition to a surface of a medical article is within the purview of the present invention. Medical articles having surfaces which are both lubricious and antithrombogenic, are produced in accordance with the method hereof.
摘要:
A method for visualization of a lubricant coating on a surface of an article includes dissolving a fluorescent agent into a lubricant. The method then includes applying the fluorescenated lubricant to coat a surface of the article. The coated article is then irradiated with an electromagnetic radiation capable of inducing a fluorescent emission in the fluorescent agent and the fluorescent emission is observed to detect the coverage of the lubricant on the surface of the article.
摘要:
A counter current defroster-humidifier arrangement, having a plurality of layered sets of parallel air flow passages formed by corrugated paper-like or porous material, is located in the above-freezing compartment of a refrigerator. The device receives moisture-laden air from the above-freezing compartment for flow in one direction through first alternate sets of parallel layered sets of air passages. The moisture is both absorbed and adsorbed within the passages and transpires or diffuses through the passage walls into the second alternate layered sets of passages which receive cooled dry air exiting the evaporator chamber for flow in the opposite direction. Thus, the arrangement substantially reduces the moisture content of the food compartment air prior to its return to the evaporator chamber while maintaining the food compartment in a high humidity food preserving condition by returning the transpired absorbed and adsorbed moisture to the chilled return air.
摘要:
An apparatus for applying a coating to an object includes a pair of reciprocating members which each include a porous resilient pad mounted for movement toward and away from each other. The apparatus includes a coating supply system for supplying coating to the resilient pads. The pads have a movement sequence from an initial rest position where the pads are spaced apart from one another to a coating loading position where the pads are in physical contact and have a degree of compression with each other to load the coating onto the pads, then the pads are moved to an intermediate rest position with the pads spaced apart an the object to be coated is moved between the pads. The sequence then includes a coating delivery position where the pads are in physical contact with each other and the object so that the pads have a degree of compression with each other and the object thereby applying the coating to the object.
摘要:
A method for catheter tipping including applying to a catheter blank a layer of a noncuring aminoalkyl terminated polysiloxane lubricant, mounting the lubricated blank on a mandrel and advancing the mandrel-catheter assembly into a heated die so that the die causes the heated tip of the blank to assume the shape of the die. The catheter may then be cut beyond the shaped tip and easily removed from both the die and the mandrel.
摘要:
An apparatus for applying a coating to an object includes a pair of reciprocating members which each include a porous resilient pad mounted for movement toward and away from each other. The apparatus includes a coating supply system for supplying coating to the resilient pads. The pads have a movement sequence from an initial rest position where the pads are spaced apart from one another to a coating loading position where the pads are in physical contact and have a degree of compression with each other to load the coating onto the pads, then the pads are moved to an intermediate rest position with the pads spaced apart an the object to be coated is moved between the pads. The sequence then includes a coating delivery position where the pads are in physical contact with each other and the object so that the pads have a degree of compression with each other and the object thereby applying the coating to the object.
摘要:
A method for visualization of a lubricant coating on a surface of an article includes dissolving a fluorescent agent into a lubricant. The method then includes applying the fluorescenated lubricant to coat a surface of the article. The coated article is then irradiated with an electromagnetic radiation capable of inducing a fluorescent emission in the fluorescent agent and the fluorescent emission is observed to detect the coverage of the lubricant on the surface of the article.
摘要:
A moisture indicator particularly adapted for use in a refrigerant system to indicate by visual inspection the moisture content of refrigerant therein. A preferred embodiment of the indicator comprises a hygroscopic plastic sleeve which is mounted behind a sight glass within a housing such as a receiver. The whole sleeve can be impregnated with a cobalt salt whose color changes when exposed to water. In use, the color of the indicator may be visually compared with a reference color stripe which does not change color with the addition of moisture and which is preferably applied adjacent the cobalt salt. The sleeve can also be non-hygroscopic plastic, or even metal, coated with a thin film of hygroscopic plastic containing cobalt salts.