125 results about "Polyether block amide" patented technology

A gas sampling line having a channel for conducting respiratory gases from a patient respiratory interface to a gas monitor, the gas sampling line comprising, i.a., a gas sampling tube comprised of a polyether block amide material, the polyether segments of which comprise polyethyleneoxide. Use of a tube comprised of a polyether block amide material, the polyether segments of which comprise polyethyleneoxide, for sampling of respiratory gases; and a method for sampling of respiratory gases, the method comprising conducting respiratory gases through such a tube. A gas analysis system for analyzing respiratory gases, comprising a gas sampling line as defined above and a gas monitor connectable to the gas sampling line.

A water vapor-permeable, air-impermeable and water-impermeable sheet material comprises a film bonded to a fibrous substrate. The film comprises a reaction extrusion-processed blend comprising a first block copolymer which comprises a polyether block amide copolymer and a second block copolymer which comprises a copolyether ester. The fibrous substrate may be woven or non-woven, and may comprise polyethylene, polypropylene, polyethylene terephthalate, a polyamide, glass mat, felt, paper, or combinations thereof. The water vapor transmission rate of the extruded film is substantially higher than that of a film made from either one of the component block copolymers. The sheet material has uses which include housewrap, roofing underlayment, breathable apparel, desiccant packaging and others.

Balloon catheter comprises a shaft having a proximal end, a distal end, and an inflation lumen extending therein, and a balloon on the shaft which has an interior in fluid communication with the inflation lumen. The balloon is formed of a blend of polymeric materials comprising a transparent amorphous nylon having a Shore D duromcter hardness of not less than 77D and being not more than about 40% by weight of the blend, and a polyamide or a polyether block amide having a Shore D duromcter hardness of no more than 73D. An increase in radial diameter of the balloon above nominal pressure for one atmosphere of pressure is no greater than 0.025 mm / atm. A guidewire catheter is also provided.

A polymer material, in particular for a medical instrument such as a balloon catheter, is provided. The polymer material comprising a combination at least of a first constituent comprising a partly crystalline polymer and a second constituent for increasing the flexibility of the material, wherein the polymer material is in the form of a polymer alloy, and wherein the first constituent is formed of a polyamide or a polyether block amide and the second constituent is formed at least partly by a thermoplastic elastomer based on polystyrene (TPE-S). A process for producing the polymer material and a medical device incorporating the polymer material are also provided.

Fragrance control is provided by articles of manufacture including various fragrancing objects, methods of using such objects, and systems that employ one or more such objects. The fragrancing object can be easy to manufacture, long lasting, provide fragrance that is consistently released over time, provide an indication to the user that the object needs to be replaced, and can hold a desired ratio of fragrance. The fragrancing object can include a first material comprising a polyether block amide, a second material comprising a polyolefin elastomer (POE), and a fragrance component such as a fragrance oil.

The invention relates to a capacitive micro-machined ultrasound transducer (CMUT) cell (6) comprising a cell floor (31) having a first electrode (7); a cell membrane (5) having a second electrode (7′) which opposes the first electrode and vibrates during transmission or reception of acoustic energy; a transmitter / receiver coupled to the first and second electrodes which causes the cell membrane to vibrate at an acoustic frequency and / or receives signals at an acoustic frequency; and an acoustic lens (13), overlaying the cell membrane, and having an inner surface opposing the cell membrane and an outer, patient-facing surface. According to the present invention the acoustic lens comprises at least one layer of a material selected from the group of: polybudatiene, polyether block amide (PEBAX), polydimethylsiloxane (PDMS) and buthylrubber.

The present disclosure provides a medical instrument with a coating that provides excellent lubricity when wet. The medical instrument possesses a coating including a wet lubricating film with high peel durability and anti-eluting properties. In embodiments, an intermediate film made of bisphenol A type epoxy resin is coated on a base material of a medical instrument made of metal, and a wet lubricant coating produced by alkaline processing of a polymer alloy containing a methyl vinyl ether maleic anhydride copolymer and a polyether block amide is then applied thereto. Methods for making these medical instruments are also provided.

Fragrance control is provided by articles of manufacture including various fragrancing objects, methods of using such objects, and systems that employ one or more such objects. The fragrancing object can be easy to manufacture, long lasting, provide fragrance that is consistently released over time, provide an indication to the user that the object needs to be replaced, and can hold a desired ratio of fragrance. The fragrancing object can include a first material comprising a polyether block amide, a second material comprising a polyolefin elastomer (POE), and a fragrance component such as a fragrance oil.

A thin film composite gas separation membrane comprising a polyether block amide copolymer coating layer and a nanoporous asymmetric support membrane with nanopores on the skin layer surface of the support membrane and gelatin polymers inside the nanopores on the skin layer surface of the support membrane. A method for making the thin film composite gas separation membrane is provided as well as the use of the membrane for a variety of separations such as separations of hydrogen sulfide and carbon dioxide from natural gas, carbon dioxide removal from flue gas, fuel gas conditioning, hydrogen / methane, polar molecules, and ammonia mixtures with methane, nitrogen or hydrogen and other light gases separations, but also for natural gas liquids recovery and hydrogen sulfide and carbon dioxide removal from natural gas in a single step.

The invention belongs to the field of film separation technique, and particularly relates to a gas separation film based on carbon nanotube / graphene oxide-polyether block amide. A preparation method of the gas separation film comprises the following steps of obtaining a carbon nanotube / graphene oxide novel nanometer carbon structure by a chemical oxidation method, and enabling a certain amount of carbon nanotube / graphene oxide to be dispersed ultrasonically in a mixed solution of ethanol and water (in a mass ratio of the ethanol to the water being 7 to 3) so as to obtain uniform dispersion fluid A; then dissolving a certain amount of polyether block amide into a solution of ethanol and water, with the same amount as the mixed solution of the ethanol and the water, and performing stirring until the polyether block amide is completely dissolved so as to obtain dispersion fluid B; and mixing the dispersion fluid A with the dispersion fluid B, allowing the mixed dispersion fluid to stand for deaeration, pouring the mixed dispersion fluid after deaeration into a culture dish, and performing drying and film forming so as to obtain the gas separation film based on the carbon nanotube / graphene oxide-polyether block amide. Compared with polyether block amide separation films, the gas separation film based on the carbon nanotube / graphene oxide-polyether block amide provided by the invention has better heat stability, higher gas permeation coefficients and higher separation coefficients, and has important application prospects in the field of gas separation films.

One aspect of the present invention is concerned with a method of manufacture of a hair brush. The method has the steps of providing a base member having connection means at circumferential region thereof, providing a sheet material having a plurality of spikes extending from outwardly facing surface of the sheet material, the sheet material and the spikes are integrally formed by injection molding of a plastic(s) material selected from the group consisting of thermoplastics polyester elastomer (TPE-E), polyether block amide copolymer (TPE-A), thermoplastic polyurethane (TPU) and polyurethane (PU), with a hardness from substantially Shore D50 to D65, and with a flexural modulus from 30,000 PSI to 40,000 PSI, assembling the sheet material by fitting perimeter thereof to the circumferential region of the base member, the base member and the connection means are configured to allow the sheet material to secure to the base member. The outwardly facing surface assumes a convex curvature. In an assembled configuration, a cavity is defined between the sheet material and the base member. In use, when the spikes are under pressure the spikes are movable in response to the pressure, causing corresponding movement to the sheet material, the movement creating a cushioning effect.