摘要:
A coating for preparing a floor underlayment to receive an adhesive includes a water-soluble, latex polymer, a defoamer and a dual-function surface enhancing agent. The surface enhancing agent includes a set accelerator that also functions to cross link the adhesive, hardening the surface of the underlayment using at least two mechanisms. One embodiment of the invention is a dry mixture that forms a coating when added to water. The dry mixture includes from about 10% to about 50% of the redispersible polymer by weight based on the mixture, from about 50% to about 90% of the surface enhancing agent and from about 0.15% to about 0.25% of the defoamer by weight based on the mixture. Other embodiments describe a liquid coating formed by adding from about 1 to about 8 pails water to 1 part of the dry mixture on a volumc basisby volume based on the mixture.
摘要:
A coating for preparing a floor underlayment to receive an adhesive includes a water-soluble, latex polymer, a defoamer and a dual-function surface enhancing agent. The surface enhancing agent includes a set accelerator that also functions to cross link the adhesive, hardening the surface of the underlayment using at least two mechanisms. One embodiment of the invention is a dry mixture that forms a coating when added to water. The dry mixture includes from about 10% to about 50% of the redispersible polymerby weight based on the mixture, from about 50% to about 90% of the surface enhancing agent and from about 0.15% to about 0.25% of the defoamerby weight based on the mixture. Other embodiments describe a liquid coating formed by adding from about 1 to about 8 parts water to 1 part of the dry mixture by volume based on the mixture.
摘要:
In a preferred embodiment, a membrane for use as an underlayment includes a basemat, which includes at least three plies, a ply of a meltblown polymer sandwiched between two plies of spunbond polymer; and a flexible coating applied to the basemat, the coating having a cementitious hydraulic component, a polymer comprising a water-soluble, film-forming polymer; and water. The finished membrane is flexible. Another embodiment for an underlayment for use underneath ceramic tiles includes a basemat and a coating of a set hydraulic component less than ⅛″ inches thick. A method of making the flexible membrane includes assembling components including a hydraulic component, a water-soluble, film-forming polymer and water, then mixing them to form a coating. A basemat is provided onto which the coating is applied over a flexible surface or no surface. After coating at least one face of the basemat, the coating is dried to form the membrane.
摘要:
A catheter introducer includes a tube having a proximal end, a distal end and a lumen extending therethrough along a longitudinal axis of the tube for accommodating a catheter traveling along a longitudinal axis of the tube and a head portion coupled to the distal end of the tube. The head portion includes an aperture in fluid communication with the lumen at a proximal end thereof and a tip at a distal end thereof, an exterior surface extending from the proximal end thereof to an opening of the head portion along a first portion of the head portion and extending from the proximal end thereof to the tip along an opposing portion of the head portion and an interior surface extending from the aperture to the opening of the head portion along the first portion of the head portion and extending from the aperture toward the tip along the opposing portion of the head portion. The exterior surface circumferentially tapers from the proximal end to the distal end and the interior surface forms a channel for receiving a catheter passing through the lumen and the aperture, the channel being concave along at least one axis.
摘要:
A heat exchanger 17 for an electronic heat pump 11 includes a thermally conductive base plate 18 having first and second surfaces, the first surface being flat and adapted to make intimate surface contact with a surface of the electronic heat pump and the second surface being obverse to the first surface and supporting an array of thermally conductive fins 21. The adjacent fins 21 define there between a plurality of micro channels.
摘要:
A heat exchanger 17 for an electronic heat pump 11 includes a thermally conductive base plate 18 having first and second surfaces, the first surface being flat and adapted to make intimate surface contact with a surface of the electronic heat pump and the second surface being obverse to the first surface and supporting an array of thermally conductive fins 21. The adjacent fins 21 define there between a plurality of micro channels.
摘要:
A method of scheduling cells into an asynchronous network for a circuit emulation service, comprises estimating the virtual clock of each connection by on-line traffic measurement, determining the lateness of the head-of-the-line cell for each connection, and giving highest priority to the latest cell.
摘要:
A fluid collection drape for use during surgery includes an impermeable liner, a permeable facing, and a substrate sandwiched between the impermeable liner and the permeable facing. The fluid collection drape is provided in a sterile condition and is sized at about 3 feet by 2.5 feet to substantially cover a width of an operating table. The substrate absorbs greater than about 500 cc of fluid. The fluid collection drape is stored in a sterile state within a package. The substrate has a thickness of about 0.05 inch.
摘要:
The hair extension of the present invention includes hair strands affixed to a ring assembly. The ring assembly comprises an inner ring and an outer ring. The inner ring is configured to nest within the outer ring, with distal ends of the hair strands impinged between the inner and outer rings. A plait of a user's hair is inserted through the ring assembly of the hair extension. In one embodiment, the hair extension is attached to the plait with a band, or by sewing the hair extension to the plait. In another embodiment, the ring assembly is modified with a fastening assembly for fastening the hair extension to the plait.
摘要:
Disclosed is a low pressure xenon lamp and the driver circuitry therefore for producing relatively short bursts of intense light from the lamp. The lamp, including its associated driver circuitry, can be used in theatrical, stage, movie and/or video productions to simulate, among other things, bursts of lightning. The lamp is installed in a fixture together with a power supply and a control system is provided for controlling when the lamp is turned on and off. Preferably, the control system includes manually operated switches and preferably one or more controllers can be coupled together in a series fashion, should it be desired to control the lamp for a greater number of time cycles then permitted by a single controller.