Abstract: The present invention pertains to moisture curable sealant compositions based on alkoxysilane functional poly(ether-urethane)s prepared from hydroxycarbamoylalkoxysilanes which provide improved paint adhesion even in the absence of polar solvents or polar plasticizers. The present invention also provides coated substrates and laminates formed from such compositions.
Type:
Grant
Filed:
October 31, 1996
Date of Patent:
February 2, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Dean M. Moren, Ian R. Owen, Kevin M. Eliason, Glen A. Stenlund, W. Stuart Bigham
Abstract: A chip scale ball grid array for integrated circuit packaging having a nonpolymer layer or support structure positioned between a semiconductor die and a substrate. The nonpolymer support structure acts to increase circuit reliability by reducing thermal stress effects and/or by reducing or eliminating formation of voids in an integrated circuit package. A nonpolymer support structure may be a material, such as copper foil, having sufficient rigidity to allow processing of chip scale package in strip format.
Type:
Grant
Filed:
October 8, 1997
Date of Patent:
February 2, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A pressure-sensitive adhesive comprises an elastomer having a partially oriented and partially crystallized elastomer component. Articles comprising the pressure-sensitive adhesive on a backing or substrate are also disclosed, as are methods of preparing the adhesive and the articles.
Type:
Grant
Filed:
December 18, 1995
Date of Patent:
February 2, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A composition of matter includes a polymerizable mixture comprising 1 to 99 weight percent of a first monomer and an initiator therefor, the first monomer being one of 1) at least one free-radically polymerizable monomer or 2) at least one cyanate ester monomer, and 99 to 1 weight percent of a second monomer and an initiator therefor, the second monomer being the member of 1) or 2) that is not selected as the first monomer, wherein the curative for the cyanate ester is a transition metal-containing organometallic compound curing agent and the curative for the free-radically polymerizable monomer is a free-radical generating curing agent or a transition metal-containing organometallic compound.
Type:
Grant
Filed:
July 17, 1996
Date of Patent:
January 26, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Fred B. McCormick, David J. Drath, Ilya Gorodisher, Michael A. Kropp, Michael C. Palazzotto, Melville R. V. Sahyun
Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets. The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).
Type:
Grant
Filed:
October 14, 1997
Date of Patent:
January 26, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Frederic Pierre Alain Le Riche, Bernard Raymond Pierre, Gregory Francis Stifter, Mark Steven Vogel
Abstract: A coated article comprising a backing and a binder is disclosed. The binder precursor is an energy-curable melt-processable resin containing an epoxy resin, a polyester component, a polyfunctional acrylate component, and a curing agent for crosslinking the epoxy resin. The binder precursor is cured to provide a crosslinked coating. The invention also relates to a method of producing such coated articles and a surface-treated porous cloth material.
Type:
Grant
Filed:
March 23, 1998
Date of Patent:
January 26, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Robert J. De Voe, Gregg D. Dahlke, Kimberly K. Harmon, Craig A. Masmar
Abstract: A method for making a nonwoven a abrasive article. A preferred aspect of the method comprises the steps of: a) providing a nonwoven web having a first side and a second side, the web comprising a plurality of fibers; b) frothing a liquid make coat precursor; c) applying the frothed make coat precursor to at least the first side of the web in such a manner so as to achieve a substantially uniform coating of the make coat precursor along the fibers of the web; d) spraying a plurality of fine abrasive particles onto the first side of the web, wherein the particles are sprayed so as to form a cloud of abrasive particles that deposit onto the fibers of the web in a substantially uniform distribution; and e) curing the make coat precursor to thereby form a hardened make coat which adheres the abrasive particles to the web and wherein the abrasive particles substantially protrude from the outer surface of the hardened make coat.
Type:
Grant
Filed:
November 12, 1997
Date of Patent:
January 26, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Kris A. Beardsley, Jonathan M. Lise, Brent D. Niccum, Rufus C. Sanders, Jr.
Abstract: A method comprising the following steps:(a) creating a thermal transfer donor sheet by vapor depositing a colorant layer onto a support;(b) contacting a receptor sheet with the donor sheet such that the colorant layer is in intimate contact with the receptor sheet, wherein at least one of the donor and receptor sheets comprises a radiation-absorbing material;(b) imagewise exposing the contacted sheets to radiation of a wavelength absorbed by the radiation-absorbing material, thereby causing heating in the exposed regions, said heating causing thermal transfer of colorant from the donor sheet to the receptor sheet in an imagewise fashion.
Type:
Grant
Filed:
December 18, 1996
Date of Patent:
January 26, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Ranjan C. Patel, Hsin-Hsin Chou, Kam K. Kam
Abstract: An edge mount connector includes a connector body having solder tails extending from a back side, and receptacles formed in a front side, opposite the back side. The solder tails have terminal ends aligned along a solder plane extending through the front and back sides and intersecting the body between a top and a bottom surface. Recesses are integrally formed to extend into the front and bottom sides of the body. The recesses include a rest surface extending along the solder plane. The connector body is suspended within a cut-out formed in a circuit board panel. The body is maintained substantially level with the solder tails engaging solder pads formed on one portion of the panel whereas another portion of the circuit board panel adjacent the cut-out, is simultaneously in engagement with the rest surfaces of the recesses.
Type:
Grant
Filed:
February 21, 1997
Date of Patent:
January 19, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Steven Feldman, James C. Pilny, Dennis M. Brunner
Abstract: A method for minimizing coating defects caused by strikethrough when simultaneously slide coating a first fluid layer, a second fluid layer, and a third fluid layer. The method includes preparing the first, second, and third fluids such that the first solute is incompatible with the second and third solutes and such that the first fluid minimizes strikethrough of at least one of the second and third fluids to a slide surface when the first fluid is positioned between the slide surface and the second and third fluids. The present invention is useful in preparing imaging, data storage, and other media.
Type:
Grant
Filed:
January 21, 1997
Date of Patent:
January 19, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Aparna V. Bhave, Robert A. Yapel, Lawrence B. Wallace, Thomas M. Milbourn
Abstract: Articles comprising a substrate, preferably a retroreflective sheeting, having a coating of a pressure-sensitive adhesive composition, and articles wherein the adhesive adheres the substrate to a highly monomericly plasticized PVC component, preferably a PVC coated fabric. The adhesive comprises a crosslinked copolymer of a first monofunctional acrylate ester of a non-tertiary alcohol having as a homopolymer a glass transition temperature of less than -25.degree. C., a nitrogen containing moderately basic monomer copolymerizable therewith selected from the group consisting of N,N-dialkyl substituted amides, an optional copolymerizable acidic monomer, an optional second monofunctional acrylate ester of a non-tertiary alcohol having as a homopolymer a glass transition temperature -25.degree. C. or greater, and a crosslinking agent. A method of bonding a highly monomericly plasticized PVC component to a substrate, preferably a retroreflective sheeting, using the adhesive.
Type:
Grant
Filed:
August 12, 1996
Date of Patent:
January 19, 1999
Assignee:
Minnesota Mining & Manufacturing Company
Abstract: The invention relates to adhesive compositions comprising polymers comprising C.sub.6 to C.sub.12 saturated .alpha.-olefin monomers and C.sub.2 to C.sub.5 .alpha.-olefin monomers and an effective amount of photoactive crosslinking agent to crosslink composition upon radiation from a source of actinic radiation.
Type:
Grant
Filed:
November 26, 1996
Date of Patent:
January 12, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
James Richard Peterson, Gaddam Nana Babu, Eric Ryan Bennett
Abstract: A pressure-sensitive adhesive comprises an elastomer having a partially oriented and partially crystallized elastomer component. Articles comprising the pressure-sensitive adhesive on a backing or substrate are also disclosed, as are methods of preparing the adhesive and the articles.
Type:
Grant
Filed:
May 14, 1997
Date of Patent:
January 12, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: Free-radically polymerizable release coating compositions containing conductivity enhancers, which are capable of being electrosprayed onto a substrate. The compositions comprise (a) about 100 parts by weight of one or more free-radically polymerizable vinyl monomer(s), (b) from about 0.05 to about 250 parts by weight of one or more polydiorganosiloxane polymer(s) copolymerizable with the vinyl monomer(s), and (c) from about 0.10 to about 10 parts by weight, based on 100 parts by weight of (a) and (b), of one or more non-volatile conductivity enhancer(s), which are soluble in the monomer(s) and which do not interfere with polymerization, wherein the composition may be electrosprayed.The composition may further comprise from about 0.1 to about 5 parts by weight of one or more initiator(s) based on 100 parts by weight of monomer(s) and polydiorganosiloxane polymer(s).Another embodiment of the present invention further comprises at least 0.
Type:
Grant
Filed:
March 26, 1996
Date of Patent:
January 12, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Albert I. Everaerts, Mieczyslaw H. Mazurek, Albert E. Seaver
Abstract: A process for preparing a compound that includes the steps of: (a) preparing a solution comprising (i) a chromium source, (ii) a manganese source, (iii) a lithium source, and (iv) an oxygen source, where the relative amounts of each of the sources is selected to yield, following step (c), a compound having the formula Li.sub.y Cr.sub.x Mn.sub.2-x O.sub.4+z where y.gtoreq.2, 0.25<x<2, and z.gtoreq.0; (b) treating the solution to form a gel; and (c) heating the gel under an inert atmosphere for a time and at a temperature sufficient to yield a compound having the formula Li.sub.y Cr.sub.x Mn.sub.2-x O.sub.4+z where y.gtoreq.2, 0.25<x<2, and z.gtoreq.0. The invention also features a compound having the formula Li.sub.y Cr.sub.x Mn.sub.2-x O.sub.4+z where y>2, 0.25<x<2, and z.gtoreq.0, and an electrode composition containing this compound.
Type:
Grant
Filed:
April 17, 1997
Date of Patent:
January 12, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: Optical elements are prepared by the adhesive transfer of at least a low temperature curable (e.g., radiation or room temperature curable) adhesive layer and a conductive layer to a substrate, preferably a transparent, non-birefringent substrate such as ceramic, glass or polymeric film having, for example, a color filter array thereon. The curable adhesive is cured after the curable adhesive layer has been placed into contact with a final receptor surface (e.g., a color filter array on a liquid crystal panel).
Type:
Grant
Filed:
September 20, 1996
Date of Patent:
January 12, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Hsin-hsin Chou, Michael F. Weber, Cyrus A. Morton, L. Peter Erickson
Abstract: A composite including a polymeric film having a first generally planar major surface and an opposite second major surface defined by a multiplicity of elongate parallel contiguous ridge portions. The ridge portions each have a generally triangular cross section and elongate obscured and transmitting second major surface portions intersecting at the apex of the ridge with the obscured second major surface portion being on the side of the ridge generally facing a first end of the sheet and the transmitting second major surface portions being on the side of the ridge portions adjacent a second end of the sheet.
Type:
Grant
Filed:
May 19, 1997
Date of Patent:
January 12, 1999
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Andrew J. Ouderkirk, Olester Benson, Jr., Wayne K. Darvell, Douglas S. Dunn, Tanya M. Laine, Donald J. McClure, Lynette M. Miles, Thomas F. Serbus, David C. Windorski, Charles D. Hoyle
Abstract: Abrasive and polishing belts and discs suitable for offhand and automated article finishing comprising a lofty, nonwoven abrasive web optionally needled to a woven fabric and a polymeric layer coated on the woven fabric opposite the nonwoven layer or if no woven fabric, coated on the nonwoven layer.
Type:
Grant
Filed:
June 6, 1997
Date of Patent:
January 12, 1999
Assignee:
Minnesota Mining and Manufacturing Company