3m Innovative Properties Company

Other

Myungchan Kang

Michael C Palazzotto

Stefan H Gryska

Evan Koon Lun Yuuji Hajime

Dipankar Ghosh

Jaewon Kim

Christopher D Sebesta

Kurt J Halverson

Robert A Asmus

Jason D Clapper

Stephen B Roscoe

Evan D Brutinel

Mark Gravermann

Christian Weinmann

Michael H Stalder

Timothy J Nies

Bernd Schubert

Jesse D Miller

Gerhard Lohmeier

Minghua Dai

Friedrich A Busemann

Sebastian Eggert

Hsi-Chou Liu

Melvin Y Wong

Rainer Reeken

Renee K Cline

Andreea Sabo

Matthew H Frey

Michael S Wendland

Bing Hao

G Marco Bommarito

Paul Frederic Baude

Justin M Johnson

Lijun Zu

Brian Kenneth Nelson

Jens Weichold

Jeffrey H Tokie

David V Mahoney

Kelvin J Witcher

Zhiguo Wen

Derek M Maanum

Justin Tungjunyatham

Michael Petry

Werner Roehling

Douglas L Elmore

Michael D Benson

Xeutao Yu

Evan K L Y Hajime

Article comprising a polymeric substrate having a first major surface comprising a plurality of particles attached thereto with plasmonic material on the particles. Articles described herein are useful, for example, for indicating the presence, or even the quantity, of an analyte.

Flexible substrate having a plasmonic particle surface coating and method of making the same

Post-steam sterilization wet pack indicators are described. The indicators generally comprise a moisture-impermeable layer having a first surface and a moisture-indicating layer comprising a reversible colorimetric steam-sterilization-compatible moisture-indicating medium. The moisture-indicating layer is disposed on or near the first surface of the moisture-impermeable layer. The area of the moisture-indicating layer is dimensionally smaller than the moisture-impermeable layer such that the edges of the moisture-impermeable layer extend beyond the edges of the moisture-indicating layer. Articles and packages comprising wet pack indicators are also described.

Post-steam sterilization moisture-indicating articles

Assay devices are provided including a receptacle having a sample entry port; a plunger disposed within the receptacle; at least one reagent; a membrane attached to a first surface of the plunger; a wick providing capillary force; and a detection zone. The membrane includes a target conjugate zone in which affinity components are disposed. Capture compounds are immobilized in a detection zone, which is located between the target conjugate zone and the wick. A method of detecting a target analyte is also provided, including providing the assay device; providing a sample suspected to contain a target analyte; adding the sample onto the device; allowing the sample to travel along the membrane until the sample reaches the detection zone; immobilizing the target analyte through reaction of the target analyte with the capture compounds; reacting the immobilized target analyte with a reagent to generate a detectable signal; and detecting the generated signal.

Assay devices and method of detecting a target analyte

A vapor sensor comprises a housing with an inlet opening in fluid communication with a sensor element within the housing. Standoff member(s) are positioned to maintain a gap between the inlet opening and a skin site. An operating circuit is in electrical communication with the sensor element and communicatively coupled to an output member. In use, the output member generates a sensory output indicative to an operator regarding concentration of alcoholic vapor in the ambient atmosphere proximate the skin site upon receiving communication from the operating circuit.

Vapor sensor suitable for detecting alcoholic residue at a skin site

Provided is a system for directly sensing, measuring, or monitoring the temperature of an electrical conductor () of a power cable (). A temperature sensitive capacitor (C) is disposed in direct thermal contact with the electrical conductor (). The temperature sensitive capacitor (C) includes a dielectric material that has a dielectric constant variable with the temperature of the electrical conductor (). The temperature of the electrical conductor () can be sensed, measured, or monitored by measuring the capacitance of the temperature sensitive capacitor (C).

Capacitive temperature sensing for electrical conductor

Three-dimensional polymeric article () having first () and second () opposed major surfaces, a first dimension perpendicular to a second dimension, a thickness orthogonal to the first and second dimensions, and a plurality of alternating first () and second () polymeric regions along the first or second dimensions, wherein the first () and second () regions extend at least partially across the second dimension, wherein the first regions () are in a common plane () and wherein some of the second regions () project outwardly from the plane () in a first direction (generally perpendicular from the plane), and some of the second regions () project outwardly from the plane () in a second direction that is generally 180 degrees from the first direction, where the first regions () have a first crosslink density, wherein the second regions () have a second crosslink density, and wherein the second crosslink density of the second regions () are less than the first crosslink density of the first regions (). Embodiments of the articles are useful for example, for providing a dual-sided, textured wrapping film such that greater grip is realized both on an item wrapped by the film and the wrapped item itself.

Three-dimensional article and method of making the same

Three-dimensional polymeric article () having first () and second () opposed major surfaces, a base body () having a first dimension, a second dimension perpendicular to the first dimension, and a thickness, wherein the thickness is orthogonal to the first and second dimensions, wherein the base body () comprises a plurality of alternating, adjacent first () and second () polymeric regions along the first dimension, wherein the second dimensions of the first () and second () regions extend at least partially across the second dimensions, wherein the first regions () have a first crosslink density, wherein the second regions () have a second crosslink density, wherein the second crosslink density of the second regions () are less than the first crosslink density of the first regions (), wherein the first and second regions extend perpendicularly in two directions from a central plane () in the base body () parallel to the first and second dimensions of the polymeric article (), and wherein the second regions () extend in each of said two directions further than does the first regions (). Embodiments of the three-dimensional polymeric article described herein are useful for providing a dual sided, textured wrapping film such that greater grip is realized both on an item wrapped by the film and the wrapped item itself.

A passive temperature-sensing apparatus, which includes a capacitive sensing element that includes a capacitive sensing composition that includes a ferroelectric ceramic material that exhibits a measurable electrical Curie temperature that is below 30 degrees C. The capacitive sensing composition exhibits a negative slope of capacitance versus temperature over the temperature range of from 30 degrees C. to 150 degrees C.

Compositions, apparatus and methods for capacitive temperature sensing

The invention relates to a voltage sensing device for a high and/or medium-voltage power-carrying conductor, the voltages sensing device comprising: &#x2022; a carrier element () with a passageway for receiving the power-carrying conductor, &#x2022; wherein the carrier element comprises an electrode () extending in an axial direction of the passageway of the carrier element and operable as a first electrode of the voltage sensing device, wherein &#x2022; a conductor () of the power cable is operable as the second electrode of the voltage sensing device and wherein &#x2022; the carrier element has a coefficient of thermal expansion that is less than 5&#xd7;10^&#x2212;6 1/K at 20 C.

Voltage sensing device

A sensor element includes a first conductive electrode having a first conductive member electrically coupled thereto; an absorptive dielectric layer comprising a polymer of intrinsic microporosity; and a second conductive electrode having a second conductive member electrically coupled thereto. The second conductive electrode comprises at least one noble metal, has a thickness of from 4 to 10 nanometers and is permeable to at least one organic vapor. The absorptive dielectric layer is at least partially disposed between the first conductive electrode and the second conductive electrode. A method of making the sensor element, and sensor device containing it, are also disclosed.

Sensor element, method of making the same, and sensor device including the same

Voltage sensor () for a high- or medium-voltage power-carrying conductor for a power network, such as an inner conductor of a power cable or a cable connector or a bus bar. The voltage sensor has a tubular shape and an axial passageway (), which can receive the conductor. The voltage sensing device comprises a) a radially-inner electrode (), operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power-carrying conductor, b) a radially-outer electrode (), operable as a second sensing electrode of the sensing capacitor, and c) a solid carrier element (), at least a first portion of which is arranged between the inner electrode and the outer electrode, the first portion being operable as a dielectric of the sensing capacitor. The sensor can be accommodated in a cable accessory. The carrier element may comprise ceramic material to increase accuracy.

Voltage Sensor

A flexible sensor patch includes a flexible base having outer and inner surfaces and a periphery, an adhesive layer disposed on at least a portion of the outer surface, a flexible porous cover secured to the flexible base along at least major portion of the periphery. The flexible porous cover and the flexible base collectively enclose at least a major portion of a sensor. The sensor comprises a capacitive sensor element. The capacitive sensor element comprises first and second conductive electrodes and a dielectric microporous material disposed therebetween. Methods of using the flexible sensor patch are also disclosed.

Flexible sensor patch and method of using the same

A vapor sensor comprises a sensor element (), a cooling member (), and an operating circuit (). The sensor element comprises: a first conductive electrode; a second conductive electrode; and a dielectric microporous material at least partially disposed between and contacting the first and second conductive electrodes. The cooling member is in contact with, and configured to cool, the sensor element. The operating circuit is in electrical communication with the first and second conductive electrodes, and is capable of creating a voltage difference between the first and second conductive electrodes such that the sensor element has a capacitance-related property, and monitoring a capacitance-related property of the sensor element. A method of using the vapor sensor to detect an analyte vapor is also disclosed.

Sub-ambient temperature vapor sensor and method of use

Compositions are provided comprising: 1) a solid metal oxide support having surface hydroxyl groups; 2) a silyl-containing compound bound to the solid metal oxide support through a silanol bond with the surface hydroxyl groups; and 3) a bis(glyoxime)-transition metal complex bound to the solid metal oxide support. These compositions can be used to make a colorimetric relative humidity-indicating sensor. A method of adjusting the colorimetric response of a moisture-indicating composition and a method of detecting moisture are also provided.

Adjustable Colorimetric Moisture Indicators

Growing community of inventors

Woodbury, MN, United States of America

Myungchan Kang