3M

About: 3M is a company organization based out in Saint Paul, Minnesota, United States. It is known for research contribution in the topics: Layer (electronics) & Coating. The organization has 7603 authors who have published 7907 publications receiving 254227 citations. The organization is also known as: Minnesota Mining and Manufacturing Company & 3M Company.

Flunisolide aerosol formulations

Abstract: Pharmaceutical aerosol formulations comprising flunisolide, ethanol, 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.

Rapid read-out sterility indicator

Abstract: A unitary sterility indicator and a method for its use, the indicator comprising an outer container having liquid impermeable and gas non-absorptive walls, and having a gas-transmissive, bacteria impermeable opening therein; contained within the outer container, a detectable amount of a source of active enzyme and/or another microorganism commonly used to monitor sterilization; a sealed, openable gas and liquid impermeable inner container containing an aqueous medium and/or a nutrient growth medium, disposed in the outer container; an enzyme substrate system capable of reacting with active enzyme to produce a detectable enzyme-modified product and/or a detector material sensitive to microorganism growth, contained in one of the containers; and means contained within the outer container for restricting the area in which enzyme-modified product and/or growing microorganisms are contained, after the inner container is opened, to an area which is less than the volume of aqueous solution contained in the inner container.

Abrasive articles and methods for their manufacture

Abstract: Abrasive articles (10) and methods for their manufacture are described. The articles (10) are screen abrasive articles including a durable backing (12) member having a patterned array of portions thereon arranged around a plurality of openings (30) extending through the backing with the openings (30) comprising between about 20 % and about 80 % of the total area of the backing. A coating of abrasive material is adhesively affixed to the array of portions on the backing (12), forming abrasive surfaces arranged around the openings (30) to cooperatively function as a single abrasive surface while the openings (30) allow debris to pass through the article during abrasive applications. In at least one aspect of the invention, the portions of the backing (12) include a plurality of first surface portions and a plurality of second surface portions having surface areas greater than the surface areas of the first portions.

Emulsion for robust sensing

Abstract: The present invention provides an optical fluorescence based sensor for measuring the concentration of a gas (e.g., CO 2 or ammonia) in a medium such as blood which has superior dry web sensor performance, enhanced sensor consistency for transparent sensor calibration, improved autoclave stability and rapid rehydration of the sensor. In a preferred embodiment, the sensors of the present invention comprise microcompartments of an aqueous phase having a pH sensitive indicator component and a nonionic amphipathic surfactant within a hydrophobic barrier phase comprising a plurality of dispersed hydrophobic particles.

Internally illuminated retroreflective sign

Abstract: An internally illuminated sign employs retroreflective sheeting with optically transmissive bonds between cover layer and base layer, thereby making the sign suitable for applications where visibility of the sign is required if the internal illumination source fails. A light conduit may be employed to allow the source of internal illumination to be remote from the interior of the sign enclosure. Total internal reflection type sheeting also may be employed to diffuse the internal illumination.