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Minnesota Mining and Manufacturing Company Patents
Assignee:
Minnesota Mining and Manufacturing Company
Address:
St. Paul, MN
No. of patents:
7363
Patents:












Patent Number Title Of Patent Date Issued
T987003 Retroluminometer October 2, 1979
a retroluminometer for measuring retroreflectivity of signs or markings at their actual point of use comprises (1) a source of alternating light; (2) optical means for both directing the alternating light onto a sign or marking that is to be tested and for transmitting light retroreflect
RE38158 Adhesive sealant composition June 24, 2003
This invention is related to an adhesive composition which may be used to bond or seal tissue in vivo. The adhesive composition is readily formed from a two component mixture which includes a first part of a protein, preferably a serum albumin protein, in an aqueous buffer having a pH in
RE37054 Secondary loop refrigeration system February 20, 2001
A method and apparatus are provided for using certain hydrofluoroethers (HFEs) as low temperature heat transfer media in secondary loop refrigeration systems. These materials exhibit a low, somewhat linear Temperature Difference Factor over the temperature range of -15.degree. C. to
RE36794 Fluorine-containing polymers and preparation and use thereof July 25, 2000
Group IV organometallic compounds, e.g. alkylsilane, or alkylsiloxane compounds, are used as chain transfer agent in the radical initiated polymerization of ethylenically unsaturated monomers, to give polymers comprising non-ionic end groups.
RE36323 Acoustical insulating web October 5, 1999
A method for attenuating sound waves passing from a source area to a receiving area comprises the steps of providing a nonwoven acoustical insulation web comprising thermoplastic fibers, the web having an average effective fiber diameter of less than about 15 microns, a density of less
RE36269 Saw blade retention system August 17, 1999
A saw blade retention system for retaining a saw blade to a reciprocating saw includes a shaft connected to the saw for reciprocation and having a slot for receiving the saw blade. The saw blade retention system also includes a chuck disposed about the shaft and having a slot aligned wit
RE36217 Top load socket for ball grid array devices June 1, 1999
A test socket for temporary connection of a ball grid array integrated circuit device to a test circuit includes an array of contacts each including two cantilever arms biased toward each other and terminating in tips adapted to capture one ball of the device.
RE36146 Optical fiber element having a permanent protective coating with a shore D hardness value of 65 March 16, 1999
An optical fiber element includes an optical fiber having a numerical aperture ranging from 0.08 to 0.34 and a protective coating affixed to the outer surface of the optical fiber. The protective coating has a Shore D .[.hardnees.]. .Iadd.hardness .Iaddend.value of 65 or more and remains
RE35691 Adjustable mounting mechanism for an optical filter screen December 16, 1997
An optical filter screen for a visual display monitor includes an optical filter supported by a support frame. A pair of adjustable mounting members support the support frame from the visual display monitor such that the optical filter is positioned adjacent a display area of the display
RE35570 Abrasive article containing shaped abrasive particles July 29, 1997
An abrasive article comprising a binder and abrasive grits, wherein the abrasive grits comprise abrasive particles having specified shapes. Coated abrasive articles of this invention comprise a backing having at least one layer of abrasive material adhered thereto by means of a binder. A
RE35550 Thermal dye transfer materials July 1, 1997
The use of eutectic combinations of a dye and a second compound (which may also be a dye) in a binder has been found to provide benefits to thermal dye transfer materials.
RE35466 Fluorine-containing polymers and preparation and use thereof February 25, 1997
Group IV organometallic compounds, e.g. alkylsilane, or alkylsiloxane compounds, are used as chain tranfer agent in the radical initiated polymerization of ethylenically unsaturated monomers, to give polymers comprising non-ionic end groups.
RE35286 Method and apparatus for culturing with microbiological dry culture medium June 25, 1996
A device useful for growing aerobic microorganisms, particularly molds. The device employs a relatively small amount of water reconstitutable medium that can be sealed in order to prevent desiccation and contamination of the medium yet still provide an adequate supply of air to the mediu
RE35143 Zirconium oxide fibers and process for their preparation January 9, 1996
Improved silicone-free, continuous zirconia fibers have diameters greater than 5 micrometers and high tensile strengths. In another aspect, strong, flexible, zirconia fibers are prepared in a process involving the addition of colloidal ZrO.sub.2 particles to a fiber precursor solution.
RE35062 Filter element October 17, 1995
A filter element adapted for attachment to a respirator face piece which includes front and rear walls of filter material, a breather tube, and a porous inner layer which maintains the front and rear walls in a spaced-apart relationship over substantially their entire area and which
RE35021 Compounding, glazing or polishing pad August 22, 1995
A paint finishing pad adapted to be used on a drive assembly including a back up pad and a drive motor for rotating the back up pad. The paint finishing pad includes a layer of open cell polymeric foam having a front surface defined by a plurality of spaced projecting portions of the lay
RE35013 Temperature control circuit having series connected fail-safe control August 8, 1995
An improved temperature control circuit having a controller portion with an inhibit input and a temperature responsive circuit portion that includes a resistive portion connected in series with a sensor portion which establishes the control point for the control circuit, the improvement
RE34958 Polysiloxane-grafted copolymer topical binder composition with novel hydrophilic monomers and me May 30, 1995
This invention relates to adhesives, surface modifying compositions, sealing compositions, and topical binder compositions comprising a copolymer having a vinyl polymeric backbone with grafted pendant siloxane polymeric moieties and especially to a method of topically applying such c
RE34902 Polysiloxane-grafted copolymer non-pressure sensitive topical binder composition and method of c April 11, 1995
This invention relates to non-pressure sensitive topical binder compositions comprising a copolymer having a vinyl polymerica backbone with grafted pendant siloxane polymeric moieties and to a method of topically coating animals therewith.
RE34825 Composite article and method of making same January 10, 1995
A method of making a composite article and a composite article specifically adapted for use in high temperature, corrosive and errosive environments comprising a carbon fibrous substrate, including a pyrolytic carbon sheath formed about each fiber of the substrate; a metallic carbide, ox
RE34765 Recording medium annealing process October 25, 1994
Stretched surface recording disk (SD) 10 comprises an annular support 12 having raised annular ridges 42 and 28 at its inside and outside diameters 22 and 30 with a base portion 24 in between the two ridges, and an annular recording medium film 14 held in radial tension and stretched acr
RE34652 Fluorinated, acrylamide-functional monomers June 28, 1994
Novel fluorinated, acrylamide monomers are prepared from 2-alkenyl azlactones reacted with fluorinated alcohols. The novel monomers have the formula ##STR1## wherein R.sup.1 and R.sup.6 are independently hydrogen or methyl;R.sup.2 and R.sup.3 independently can be an alkyl, cycloalkyl
RE34651 Sheet-member containing a plurality of elongated enclosed electrodeposited channels and method June 28, 1994
A sheet member and a method for constructing the sheet member. The sheet member includes a plurality of elongated, enclosed channels formed by electrodeposition.
RE34348 Fluorinated polymers derived from acrylamide-functional monomers August 17, 1993
Novel fluorinated, acrylamide monomers are prepared from 2-alkenyl azlactones reacted with fluorinated alcohols. The novel monomers have the formula ##STR1## wherein R.sup.1 and R.sup.6 are independently hydrogen or methyl; R.sup.2 and R.sup.3 independently can be an alkyl, cyclo
RE34279 Water-dispersible pressure-sensitive adhesive and tape made therewith June 8, 1993
Repulpable splicing tape, especially adapted for splicing carbonless paper. The preferred adhesive is a blend of acrylate:acrylic acid copolymer, NaOH and/or LiOH KOH, and certain ethoxylated plasticizing components. A small amount of polyamide-epichlorohydrin crosslinker may also be inc
RE33893 Reclosable closure assembly for container April 21, 1992
Reclosable closure assembly for containers, particularly aseptic containers, containers having such a closure assembly, and a method for applying the closure assembly to preformed blanks suitable for preparing the containers.The container portion to which the closure assembly is applied
RE33362 Bone stapler cartridge October 2, 1990
A bone stapler including a staple cartridge that, when removed from the stapler, insures that no staple can remain in the stapler, and is held in place by a rotatable locking member that in one position can pass through an opening in a wall of the stapler and can then be rotated to hold
RE33353 Thin film surgical dressing with delivery system September 25, 1990
A pressure sensitive adhesive composite with a delivery system having particular benefit in application of very thin backings such as high moisture vapor permeable films widely used as medical dressings is disclosed. The composite has a backing coated with adhesive on at least a port
RE33299 Fragrance-releasing pull apart sheet August 14, 1990
Microencapsulated materials are released by rupturing of an adhesive layer on a substrate containing the capsules.
RE33187 Stable stretched surface recording medium March 27, 1990
Stretched surface recording disk (SD) 10 comprises an annular support 12 having raised annular ridges 42 and 28 at its inside and outside diameters 22 and 30 with a base portion 24 in between the two ridges, and an annular recording medium film 14 held in radial tension and stretched acr
RE32952 Method of preparing N-acryloyl-.alpha.-amino acids June 13, 1989
A novel, one-pot procedure for the preparation of N-acryloyl-.alpha.-amino acids involves the steps of:(i) reacting a ketone, an ammonium salt, and a cyanide salt in water, optionally in the presence of ammonium hydroxide and a co-solvent, to form an aminonitrile;(ii) acryloylating the a
RE32476 Consolidation of aggregate material August 18, 1987
Aggregate material is contacted with a fluid agent comprising a hydrophilic urethane prepolymer to form a hydrophilic polyurethane-polyurea polymeric matrix which adhesively bonds the aggregate together as a resilient, integral, water-permeable mass which will sustain plant growth.This i
RE32299 Glass composition and articles December 2, 1986
This invention provides a novel glass composition having numerous uses. More particularly, the invention provides a single phase, radiopaque glass composition.
RE32249 Linerless double-coated pressure-sensitive adhesive tape September 23, 1986
A linerless double-coated pressure-sensitive adhesive tape of the prior art is wound directly upon itself into a roll that can later be unwound without delamination or offsetting of adhesive. The novel tape differs from the prior tape in that the pressure-sensitive adhesive at each of it
RE32171 Method for the manufacture of an electret fibrous filter June 3, 1986
A method for the manufacture of an electrically charged fibrous filter from a highly molecular non-polar fiber material wherein a .[.web.]. .Iadd.film .Iaddend.of the fiber material is continuously fed and stretched. At least one side of the stretched .[.web.]. .Iadd.film .Iaddend.is hom
RE32073 Dental filling composition utilizing zinc-containing inorganic filler January 28, 1986
This invention is a dental filling composition for making dental restorations. More particularly, the invention provides a radiopaque dental filling material. Specifically, the dental filling material contains a zinc-containing glass as the component imparting opacity to X-rays.
RE32010 Dispenser for liner-wound tape October 22, 1985
A hand held dispenser for liner wound adhesive tape having walls that define a first cavity for storing a supply roll of liner wound tape, a second cavity with an inner wall surface which causes liner pushed into the second cavity to wind into a coil, an opening through which liner may
RE31897 Method for the alteration of a lens May 28, 1985
A method for altering a lens whereby a lens is securely bonded to a lens block by a lens adhesive blocking pad having means for accurately aligning the optical center, and optionally the cylinder axis, of the lens with the center point and cylinder axis of the lens block. The invention a
RE31787 Compositions for reducing elution of therapeutic agents from teeth January 1, 1985
A dentrifice composition containing a water-dispersible, membrane-forming material which, when applied to tooth surfaces in an oral environment, attaches thereto and forms a substantially continuous, hydrophobic barrier thereon which substantially reduces elution of a previously applied
RE31670 One-part solvent-free thermosettable blocked prepolymer composition containing a diene, together September 11, 1984
A one-part, solvent free, thermosettable adhesive and coating composition comprising a prepolymer terminated with blocked isocyanate groups and having a melting point below 95.degree. C., a difunctional amine or alcohol which is soluble in the prepolymer at 95.degree. C., a monofunct
RE31533 Information carrying discs March 6, 1984
Information-carrying discs are comprised of a substrate having an information bearing layer derived from 15 to 100% by weight of at least one polyacryloyl-containing heterocyclic monomer.
RE31285 Method for manufacturing a filter of electrically charged electret fiber material and electret f June 21, 1983
A method for forming a filter of electrically charged electret fiber material, consisting of a high molecular weight, nonpolar polymeric substance, comprising drawing, charging, and fibrillating a foil of said high molecular weight substance. The fibrillated foil is wound and then cr
RE31087 Method for separating oil from water November 23, 1982
A method for separating water-immiscible oils and oil-like substances from mixtures including said oils in an aqueous medium which comprises contacting the mixture with an oleophilic fibrous web comprising large numbers of interconnected, interstitial spaces for reception and retention
RE30974 Production of television signals from photographic disc recordings June 15, 1982
6. In combination in a system for reproducing .Iadd.video .Iaddend.information from a rotatable medium where the medium has characteristics at progressive positions along a spiral path for modifying energy directed at the medium in representation of .Iadd.video .Iaddend.information p
RE30892 Area-retroreflectorization of fabrics March 30, 1982
Retroreflective-treated fabrics, and products and methods for forming the treatments are taught. As an example, a free-flowing mass of minute retroreflectorization particles that each comprise hemispherically reflectorized transparent microspheres supported in a softenable binder mat
RE30891 Resilient wood replication March 30, 1982
Resilient wood replication especially suited for use as floor covering is provided by a thick resilient elastomeric polyurethane base having a wood-stained molded textured wood-grain surface which is overcoated with a clear, tough, abrasion-resistant, flexible, water-resistant polyuretha
RE30782 Method for the manufacture of an electret fibrous filter October 27, 1981
A method for the manufacture of an electrically charged fibrous filter from a highly molecular non-polar fiber material wherein a .[.web.]. .Iadd.film .Iaddend.of the fiber material is continuously fed and stretched. At least one side of the stretched .[.web.]. .Iadd.film .Iaddend.is hom
RE30337 Textile treatment composition July 15, 1980
Textiles, particularly carpets, are endowed with oil and water repellency and soil resistance by treatment thereof with certain detergent-compatible fluorochemical compounds which can also be used in conjunction with anionic or nonionic detergents to provide cleaning/treating composition
RE29742 Retroreflective protective helmet August 29, 1978
Protective helmets that give a distinctive retroreflective signal under wet or dry conditions at night or in other darkened environments are provided by disposing a retroreflective layer covered by a transparent layer over at least a major portion of the outer surface of the helmet.
RE29663 Moisture-resistant solar control film June 6, 1978
Solar control film having a water-activatable adhesive system comprising a normally tacky and pressure-sensitive adhesive coating which is covered by a thin tack-free continuous water-soluble layer. The product, which does not require a liner, can be moistened and installed on a windowpa

 
 
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