3M
Saint Paul, MN, United States
Saint Paul, MN, United States

The 3M Company, formerly known as the Minnesota Mining and Manufacturing Company, is an American multinational conglomerate corporation based in St. Paul, Minnesota. 3M headquarters are in the St. Paul suburb of Maplewood, Minnesota.With $30 billion in sales, 3M employs 88,000 people worldwide and produces more than 55,000 products, including: adhesives, abrasives, laminates, passive fire protection, dental and orthodontic products, electronic materials, medical products, car-care products , electronic circuits, and optical films. 3M has operations in more than 65 countries including 29 international companies with manufacturing operations and 35 companies with laboratories. 3M products are available for purchase through distributors and retailers in more than 200 countries, and online directly from the company. Wikipedia.

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A method of making a breathable, elastic film laminate comprising the steps of stretching an elastic film in a first direction, spot welding at least one nonwoven web to the film while it is stretched, and stretching the film laminate in a second direction to create apertures in the film. Articles derived from the method are also described.


Patent
3M | Date: 2017-03-29

Self-venting nozzles and nozzle attachments adapted to vent a gas entrained in a fluid to an atmosphere are described. The nozzles or attachments comprise a nozzle inlet end, a nozzle outlet end, a nozzle wall extending between the nozzle inlet end and nozzle outlet end and having an interior surface defining a fluid channel surrounding a nozzle flow axis, and one or more vent passageways providing fluid communication between the fluid channel and the atmosphere. Nozzle systems comprising the self-venting nozzle and a dispenser, as well as methods of dispensing a fluid having a gas entrained therein are also described.


The compound N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecanamide is a useful drug compound for enhancing immune response and can be used, for example, as a vaccine adjuvant and a cancer treatment.


Method and system are disclosed for determining conditions of components that are removably coupled to articles of personal protection equipment (PPE) by tracking the components against predetermined criteria.


A fluoropolymer composition comprising(i) fluoropolymer particles comprising repeating units derived from at least one perfluorinated comomoner selected from tetrafluoroethene (TFE), hexafluoropropene (HFP) and a combination thereof and one or more non-perfluorinated comonomers selected from vinylidenefluoride (VDF), ethene (E), propene (P) and a combination thereof; wherein the total amount of the perfluorinated comonomers is at least 40 % by mole based on the total amount in moles of comonomers and wherein the fluoropolymer is melt processable;(ii) particles comprising electro-active material, wherein the electro-active material comprises graphite and metal compounds and combinations thereof;(iii) optionally, carbonaceous particles other than graphite;(iv) water;(v) an organic liquid having a boiling point between 70 C and 200 C selected from hydrocarbons and functional hydrocarbons containing one or more functionality selected from nitriles, chlorines, and oxygen-containing functionalities selected from ethers, alcohols, carboxylates, carboxylate esters and combinations thereof,wherein the amount by weight of the substantially inorganic particles (ii) is greater than the amount of fluoropolymer particles (i) and wherein the amount by weight of water is greater than the amount of organic liquid. Also provided are methods of making the paste and methods of making electrodes and electrodes made with the paste.


A method of generating hydrogen and oxygen from water, the method comprising: providing a membrane electrode assembly comprising an electrolyzer anode comprising an electrolyzer anode catalyst comprising nanostructured whiskers having thereon multiple alternating layers comprising respectively in any order Pt and Ir, the membrane electrode assembly further comprising a cathode; providing water in contact with the electrolyzer anode catalyst; and providing an electrical potential with sufficient current across the membrane electrode assembly to convert at least a portion of the water to hydrogen and oxygen on the cathode and electrolyzer anode respectively.


Patent
3M | Date: 2017-09-27

A dispensing device comprises a compartment for receiving a dental material, a piston for extruding the material from the compartment and a spindle drive for moving the piston and the compartment relative to one another. The spindle drive comprises a spindle and a link which are adapted for disengageable engagement with one another, wherein the spindle and the link are operable relative to each other between an engaged position in which the link and the spindle are engaged with one another, and a disengaged position in which the spindle and the link are disengaged from one another. The device may be relatively robust and inexpensive to manufacture, and may facilitate preparation of dental materials for use.


Patent
3M | Date: 2017-09-27

Elastic sleeve (1) for electrically insulating a HV/MV power conductor in a power network, comprisinga) a shrinkable or expandable elastic sleeve body (10);b) a receiving space (20) in the sleeve body, for receiving the power conductor;c) a cavity (30) formed in the sleeve body; andd) a divider assembly (40), arranged, at least partially, in the cavity and comprising a plurality of discrete impedance elements, operable as a voltage divider for sensing a voltage of an inner conductor of the power conductor.


A radio frequency (RF) sensing device in an assembly is adapted to wirelessly communicate with a remote transceiver. The sensing device includes a substrate; an antenna disposed on the substrate; an electronic circuit disposed on the substrate and electrically coupled to the antenna; a heating element electrically coupled to the electronic circuit for heating a target area; and a sensing element thermally coupled to the heating element for sensing a temperature of the heating element. The RF sensing device is configured to wirelessly receive a power and provides the power to the heating element


Obrovac M.N.,Dalhousie University | Chevrier V.L.,3M
Chemical Reviews | Year: 2014

Most studies set out to make materials that improve on the specific capacity of graphite, usually without regard to average voltage, volumetric capacity, or the many other properties listed above that are more applicable to implementation in practical cells. One difficulty in choosing proper metrics for anodes stems from basic electrochemistry: it is not possible to calculate the energy of a single electrode. To provide motivation for using alloy anode materials and a framework for comparison, key performance metrics need to be defined. It is well-known that the volumetric and specific capacities of the active elements are far greater than that of graphite. Because all alloys expand considerably during lithiation, this volume must be accommodated somewhere within a battery. To make more informative performance comparisons, it is necessary to use a cell model, preferably one that is most representative of alloy materials application.

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