Patents Represented by Attorney, Agent or Law Firm Daniel B. Reece, IV
  • Patent number: 6866183
    Abstract: The invention teaches an envelope with an adjustable dimension to accommodate inserts of varying size.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: March 15, 2005
    Assignee: MeadWestvaco Corporation
    Inventor: Douglas K. Purcell
  • Patent number: 6767638
    Abstract: This invention concerns cationic core-shell particles having a polymeric core component and a polymeric shell component disposed generally about said core, wherein said shell contains a stabilizer that is covalently bonded to the polymeric shell component. More particularly, the invention concerns the use of these core-shell particles in formulating ink jet receptive coatings.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: July 27, 2004
    Assignee: MeadWestvaco Corporation
    Inventor: Gamini S. Samaranayake
  • Patent number: 6756129
    Abstract: This invention relates to polymer blend compositions and the process for preparing the same. In particular, the invention relates to novel blends of cationic polymers and anionic polymers which exhibit properties that make them useful as coatings for various substrates.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 29, 2004
    Assignee: MeadWestvaco Corporation
    Inventor: Jean Caprice St. Arnauld
  • Patent number: 6743514
    Abstract: This invention pertains to radiation-curable aqueous compositions comprising a mixture of water-reducible oligomer, monomer, and water-insoluble cationically-modified latex. More particularly, the invention pertains to radiation-curable aqueous compositions that are suitable for use as ink jet printing receptive coatings and in the production of ink jet printable products.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: June 1, 2004
    Assignee: MeadWestvaco Corporation
    Inventor: Gamini S. Samaranayake
  • Patent number: 6723200
    Abstract: This invention relates to an improvement in the art of making high pressure laminated materials utilizing saturating kraft paper. More particularly, the invention relates to release sheets coated with an aqueous polymeric composition which makes the sheets useful in the production of heat and pressure consolidated laminated materials. Papers which are coated with these aqueous polymeric compositions exhibit excellent release properties which, when employed as release sheets, permit high pressure laminates to be easily separated.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: April 20, 2004
    Assignee: MeadWestvaco Corporation
    Inventor: Sukun Zhang
  • Patent number: 6713548
    Abstract: This invention relates to waterborne polymer compositions and their applications. More particularly, the invention relates to the utilization of water-dispersible polymers and fatty acid as surface-active agents in emulsion polymerization reactions to produce waterborne polymer compositions which exhibit superior grease, water, and chemical resistance properties.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: March 30, 2004
    Assignee: MeadWestvaco Corporation
    Inventors: Sukun Zhang, Charles Andrew Rumble, Warunee Srisiri-Sisson, Marc Stephen Moisa, James George Hayden
  • Patent number: 6699393
    Abstract: This application discloses a method for enhanced removal of chloramines from a fluid media by contacting said media with a catalytic activated carbon. The catalytic activated carbons used in the present invention may be prepared from carbon materials that have been contacted or otherwise exposed to nitrogen-containing compounds at temperatures above 700° C.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: March 2, 2004
    Assignee: MeadWestvaco Corporation
    Inventors: Frederick Stanley Baker, Jane Fiona Byrne
  • Patent number: 6696384
    Abstract: A new shaped activated carbon and the method of its manufacture are disclosed. The invention resides in the crosslinking of a polymeric cellulose, such as sodium carboxymethylcellulose (CMC), within the carbon bodies after they are shaped, employing the CMC as a binder for the activated carbon. The approach to attain product mechanical strength and water stability by crosslinking rather than high temperature heat treatment is not obvious from the prior art teaching. The crosslinking reaction occurs at temperatures below 270° C. In addition, this new binder technology produces shaped carbon bodies having key properties beyond the best level that has been accomplished with other binders.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: February 24, 2004
    Assignee: MeadWestvaco Corporation
    Inventors: Peter D. A. McCrae, Tiejun Zhang, David R. B. Walker
  • Patent number: 6682931
    Abstract: This invention relates to a method for improving the growth and regeneration potential of embryogenic cell and tissue cultures of coniferous plants retrieved from cryopreservation. In particular, this invention relates to the use of abscisic acid in the post-cryopreservation recovery medium to improve both the growth and somatic embryo production of embryogenic cell and tissue cultures of conifers, thereby enabling more rapid proliferation of the embryogenic cultures and a subsequent increase in the yield of somatic embryos. This method is well-suited for employment with a number of biotechnological uses of embryogenic cultures of coniferous plants retrieved from cryopreservation, including use with embryogenic cultures of coniferous plants and with genetically transformed embryogenic cultures of coniferous plants for producing clonal planting stock useful for reforestation.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: January 27, 2004
    Assignee: MeadWestvaco Corporation
    Inventors: Michael Ryan Becwar, Sharon Anne Krueger
  • Patent number: 6572969
    Abstract: This invention concerns cationic core-shell particles having a polymeric core component and a polymeric shell component disposed generally about said core, wherein said shell contains a stabilizer that is covalently bonded to the polymeric shell component. More particularly, the invention concerns the use of these core-shell particles in formulating ink jet receptive coatings.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: June 3, 2003
    Assignee: MeadWestvaco Corporation
    Inventor: Gamini S. Samaranayake
  • Patent number: 6573212
    Abstract: A new shaped activated carbon and the method of its manufacture are disclosed. The invention resides in the crosslinking of a polymeric cellulose, such as sodium carboxymethylcellulose (CMC), within the carbon bodies after they are shaped, employing the CMC as a binder for the activated carbon. The approach to attain product mechanical strength and water stability by crosslinking rather than high temperature heat treatment is not obvious from the prior art teaching. The crosslinking reaction occurs at temperatures below 270° C. In addition, this new binder technology produces shaped carbon bodies having key properties beyond the best level that has been accomplished with other binders.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: June 3, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: Peter D. A. McCrae, Tiejun Zhang, David R. B. Walker
  • Patent number: 6541538
    Abstract: A cationic, water-soluble polymer is disclosed as an ink-jet ink resin to improve color-fastness and adhesion of an ink-jet printing ink. Also disclosed is a method for preparing the invention resin and the ink-jet ink formulation comprising same.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: April 1, 2003
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, G. Frederick Hutter
  • Patent number: 6540877
    Abstract: An improvement is disclosed over conventional internal sizing of stock furnish for papermaking, wherein alum is added to the thick paper stock and the long retention time permits complete reaction with the fibers. The invention process permits successfully adding novel aluminum rosinate size composition unconventionally in thin stock furnish, where retention times are on the order of less that 1 minute. The highly charged aluminum rosinate size is able to be quickly adsorbed onto the fiber surfaces to permit surprisingly efficient sizing in thin stock. The quick sizing avoids concern with rising pH over time (in conventional thick stock application) and increases sizing efficiency.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: April 1, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: Gerald Katz, Lester William House, Donald E. Alexander, Sr., Susanne L. Sowers, Joseph Marton
  • Patent number: 6540815
    Abstract: Disclosed is a method for sharply reducing diurnal breathing loss emissions from automotive evaporative emissions control systems by providing multiple layers, or stages, of adsorbents. On the fuel source-side of an emissions control system canister, high working capacity carbons are preferred in a first canister (adsorb) region. In subsequent canister region(s) on the vent-side, the preferred adsorbent should exhibit a flat or flattened adsorption isotherm on a volumetric basis and relatively lower capacity for high concentration vapors as compared with the fuel source-side adsorbent. Multiple approaches are described for attaining the preferred properties for the vent-side canister region. One approach is to use a filler and/or voidages as a volumetric diluent for flattening an adsorption isotherm. Another approach is to employ an adsorbent with the desired adsorption isotherm properties and to process it into an appropriate shape or form without necessarily requiring any special provision for dilution.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: April 1, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: Laurence H. Hiltzik, Jacek Z. Jagiello, Edward D. Tolles, Roger S. Williams
  • Patent number: 6521343
    Abstract: This invention concerns cationic core-shell particles having an acid-insoluble polymeric core component and an acid-swellable polymeric shell component disposed generally about said core so that upon neutralizing said shell with acid, a portion of said shell remains attached or associated with said core; and wherein said shell contains a stabilizer that is covalently bonded to the polymeric shell component. This invention further concerns polymer latex compositions wherein said polymeric shell component has been neutralized and substantially, but not totally, dissolved so as to form a blend of neutralized core-shell polymer and an aqueous solution of neutralized shell polymer. More particularly, the invention concerns the use of latex compositions produced from these cationic core-shell particles to formulate ink jet receptive coatings.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: February 18, 2003
    Assignee: Westvaco Corporation
    Inventors: Gamini S. Samaranayake, G. Frederick Hutter, Camille K. Stebbins
  • Patent number: 6503971
    Abstract: This invention relates to novel rosin-fatty acid vinylic polymer compositions that exhibit characteristics which make them useful as grind resins for preparing grind vehicles for ink and coating formulations. In particular, this invention relates to rosin-fatty acid vinylic grind resin compositions obtained from the addition polymerization reaction of a mixture of rosin and fatty acid and a mixture of (meth)acrylic and vinylic monomers.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: January 7, 2003
    Assignee: Westvaco Corporation
    Inventors: Rajnikant Shah, Stanley C. Adams
  • Patent number: D501221
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: January 25, 2005
    Assignee: MeadWestvaco Corporation
    Inventors: Abby J. Howes, Timothy B. Kesselring
  • Patent number: D506220
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: June 14, 2005
    Assignee: MeadWestvaco Corporation
    Inventors: Abby J. Howes, Timothy B. Kesselring
  • Patent number: D509244
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: September 6, 2005
    Assignee: MeadWestvaco Corporation
    Inventors: Abby J. Howes, Timothy B. Kesselring
  • Patent number: D510749
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: October 18, 2005
    Assignee: MeadWestvaco Corporation
    Inventors: Abby J. Howes, Timothy B. Kesselring