摘要:
A method for obtaining contact lenses having optimized visual acuity involves providing the anterior surface or the posterior surface of the contact lens with a conic section having a shape factor value within the range of about 0.3 to 2.0, the shape factor value being selected so as to adjust spherical aberration in the central optical zone to a value within the range of about -0.2 diopter to about -0.6 diopter and to a value that provides optimal visual acuity.
摘要:
A method and system for disinfecting contact lenses with iodine using a neutralizing solution having a first, rapid neutralizing component which completes its reaction with available iodine in less than five seconds and a second, slower neutralizing component which completes its reaction with available iodine in about 3 to 30 minutes.
摘要:
Pharmaceutical solution aerosol formulations comprising butixocort propionate and a propellant selected from the group consisting of 1,1,1,2-tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, and a mixture thereof.
摘要:
a compounding element for use with a rubbing compound in the finishing of a working surface. The compounding element has a buffing surface and a resiliently deformable skirt around the perimeter of the buffing surface and projecting beyond the buffing surface. In use, application of pressure to the compounding element on a working surface causes deformation of the skirt so that the buffing surface contacts the working surface and the skirt restricts slinging of the rubbing compound.
摘要:
An aerosol dispenser comprising a can (12) equipped with a dispensing valve (14) and containing a pressurized aerosol formulation. The can additionally contains a contents indicator, which, when the aerosol dispenser is shaken, is capable of producing an audible signal which is significantly different when the amount of aerosol formulation in the can is at or below a predetermined level compared to the audible signal when the formulation in the can is above such predetermined level.
摘要:
A pressure sensitive adhesive composition suitable for making tapes contains a non-halogen intumescent flame retardant. The pressure sensitive adhesive compositions may be based on adhesives including rubber based compositions, acrylic adhesive compositions and adhesive foams. Suitable flame retardants include non-halogen phosphorus/nitrogen flame retardants and a further flame retardant e.g. a halogenated retardant may also be added. The adhesive foam may comprise hollow glass or polymeric microbubbles or may be made by frothing an adhesive.
摘要:
A valve for delivering a metered dose of a medicinal aerosol formulation. The valve has a filling state, a filled state, a metering state, and a dispensing state. A metering chamber (70) is formed when the device is taken from the filled state to the metering state. Means (40, 60) are provided so that, once the valve has been placed in the filled state, it can no longer be placed in the filling state.
摘要:
Dispositif pour administrer un aérosol, comprenant: un corps (14), une tige de soupape (12), et un diaphragme (16), ledit diaphragme étant constitué d'un élastomère thermoplastique contenant un copolymère d'éthylène/1-butène. L'invention concerne également des éléments d'étanchéité contenant un tel élastomère et des mélanges de polymères thermoplastiques, par exemple, destinés à être utilisés dans les éléments d'étanchéité selon l'invention. Les dispositifs selon l'invention sont particulièrement utiles pour administrer des compositions contenant comme gaz propulseur du 1,1,1,2-tétrafluoroéthane ou du 1,1,1,2,3,3,3-heptafluoropropane.
摘要:
Formulations d'aérosol de solution pharmaceutique comprenant béclométhasone 17,21 dipropionate, éthanol ainsi qu'un propulseur choisi dans le groupe constitué de 1,1,1,2-tétrafluoroéthane, 1,1,1,2,3,3,3-heptafluoropropane, ainsi qu'un mélange de ceux-ci.