Patents Examined by Susan Berman
  • Patent number: 7368485
    Abstract: Inks are disclosed which are used in ink-jet printing. The inks are cured by ultraviolet radiation, preferably free radical initiation. The inks contain a (meth)acrylate monomer, an ?,?-unsaturated ether monomer and a photoinitiator. The inks exhibit a low viscosity and give tough printed images after curing.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: May 6, 2008
    Assignee: Sericol Limited
    Inventor: Carol Noutary
  • Patent number: 7368484
    Abstract: The present invention relates to novel polymeric compositions that exhibit Reverse Thermal Gelation (RTG) properties for use as Support Materials (SM) in the manufacture of three-dimensional objects. These polymers are Temperature Sensitive Polymers that respond with a significant change of properties to a small change in temperature. Temperature Sensitive Polymers exhibit cloud point (CP) or lower critical solution temperature (LCST) in aqueous solutions. Water-soluble Temperature Sensitive Polymers are chosen to give low viscosity liquid at low temperature when dissolved in water and by that to permit easy dispensing at low temperature. Raising the temperature above their gelation temperature (Tgel) will result in solidification of the composition. At its gel position the material has favorable characteristics as a support and building material. The gel layers have the appropriate toughness and dimensional stability to support the model layers during the building process.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: May 6, 2008
    Assignee: Objet Geometries Ltd.
    Inventor: Avraham Levy
  • Patent number: 7365103
    Abstract: A composition is provided and a method of using the same to form a pattern on a substrate using imprint lithography employing dark-field polymerization is disclosed. The composition includes a polymerizable bisvinylether and an initiator that produces an acid in response to radiation.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: April 29, 2008
    Assignee: Board of Regents, The University of Texas System
    Inventors: C. Grant Willson, Nicholas A. Stacey
  • Patent number: 7354627
    Abstract: The present invention provides a protein polymer material and a method for preparing the protein polymer material involving applying an energy such as electrical energy or gravitational energy to a protein to cause the protein to assemble in a controlled arrangement. The protein used in this method may be any suitable fibrillar protein capable of self-assembling.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: April 8, 2008
    Assignee: DePuy Products, Inc.
    Inventors: Hugo A. Pedrozo, Mark Shuster
  • Patent number: 7344672
    Abstract: Solid-state deformation processing of crosslinked high molecular weight polymers such as UHMWPE, for example by extrusion below the melt transition, produces materials with a combination of high tensile strength and high oxidative stability. The materials are especially suitable for use as bearing components in artificial hip and other implants. Treated bulk materials are anisotropic, with enhanced strength oriented along the axial direction. The material is oxidatively stable even after four weeks of accelerated aging in a pressure vessel containing five atmospheres of oxygen (ASTM F2003). Because of its oxidative stability, the deformation processed material is a suitable candidate for air-permeable packaging and gas sterilization, which has thus far been reserved for remelted crosslinked UHMWPE.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: March 18, 2008
    Assignee: Biomet Manufacturing Corp.
    Inventors: David W. Schroeder, Jordan H. Freedman, James E. Gunter, Brian D. Salyer, H. Gene Hawkins
  • Patent number: 7345097
    Abstract: An autoxidisable architectural coating composition suitable for application to surfaces found in and around buildings at ambient temperatures and in natural daylight by unsophisticated users having no respiratory protection wherein surface autoxidation of the composition is promoted by a combination of low concentrations of metal ions (especially manganese or vanadium) and at least one photoinitiator. The composition avoids the need to use more than trace amounts cobalt ions which are rumoured to be carcinogenic yet achieves adequately fast rates of autoxidation. Preferably the use of cobalt is avoided altogether. The use of the low concentrations of the other metal ions reduces discolouration of the compositions often to levels below what is achieved using conventional cobalt promoters. It also improves gloss. Also a modification in which surface autoxidation is promoted by a combination of a photoinitiator and trace amounts of cobalt ions in the absence of other surface autoxidation promoting metal ions.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: March 18, 2008
    Assignee: Imperial Chemical Industries PLC
    Inventor: Philip Louis Taylor
  • Patent number: 7341791
    Abstract: The present invention relates to a multi-coating system with gas-barrier properties which is able to undergo photo-crosslinking by means of UV radiation and is particularly suitable for the external protection of containers made of thermoplastic polymers, such as bottles made of PET. The system comprises a solution that is able to undergo photo-crosslinking by means of exposure to UV radiation and a composition that is able to undergo photo-crosslinking by means of exposure to UV radiation, where said photo-crosslinkable solution comprises a substance photo-sensitive to UV radiation, and said photo-crosslinkable composition comprises mixtures of crosslinkable resins and photo-initiators.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: March 11, 2008
    Assignee: Plastlac S.r.l.
    Inventors: Gianni Mirone, Roberta Pesce
  • Patent number: 7327925
    Abstract: A photosensitive composition suitable for practical waveguide devices is provided. The photosensitive composition comprises at least one multifunctional acrylate prepared from a fluorinated multifunctional alcohol and at least one photoinitiator. The said composition has high photo contrast, high curing speed, controllable refractive index, low curing shrinkage, high thermo-optic coefficient, low volatility and high viscosity. A waveguide device is formed by patterning the photosensitive composition.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: February 5, 2008
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Fang Wang, Baopei Xu, Indira S. Pottebaum, Chuck C. Xu, Deepti Pant, Chris E. Osuch, Louay A. Eldada
  • Patent number: 7323498
    Abstract: A wax-tethered photoinitiator that is a photoinitiator compound including a wax chain therein, wherein the photoinitiator compound is activated by ultraviolet radiation, and method of making the same is described. The wax-tethered photoinitiator may be used in a curable wax composition for incorporation into a toner. The wax-tethered photoinitiator exhibits an affinity for the wax phase, thereby insuring its presence in the wax for the initiation of curing thereof.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: January 29, 2008
    Assignee: Xerox Corporation
    Inventors: Jennifer L. Belelie, Peter G. Odell, Daryl Vanbesien, Jessica F. Jordao
  • Patent number: 7307106
    Abstract: A curable composition is described comprising a Michael donor component, a polyacryl component, and a monoacryl component, where at least one of the Michael donor or monoacryl components comprises a pendent photoinitiator group. A Michael addition polymer that is the Michael addition reaction product of these components is also described.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: December 11, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Babu N. Gaddam
  • Patent number: 7306315
    Abstract: Disclosed is a method of coating an inkjet print head using a UV curable coating composition containing a (methyl)acryloxy or vinyl functionalized silane, silica and acrylate oligomer containing at least two acrylate groups.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: December 11, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Andrew McIntosh Soutar, Min Qian, Kok Mun Hew, Ivan Thomas Pereira, Guangjin Li
  • Patent number: 7303787
    Abstract: An active ray curable ink-jet ink composition comprising: (i) a colorant; and (ii) a set of (I) or a set of (II), wherein the set of (I) contains: (a) a photopolymerizable alicyclic epoxy compound; and (b) a diol compound contained in a specific amount; and the set of (II) contains: (a) a photopolymerizable oxetane compound; (b) a photopolymerizable epoxy compound; and (c) a diol compound contained in a specific amount.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: December 4, 2007
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Satoshi Masumi, Daisuke Ishibashi
  • Patent number: 7297306
    Abstract: A new class of amines is incorporated into phtopolymerizable systems employing type I or type II photoinitiators. These amines are trialkylamines having a total of 10 to about 36 carbon atoms in the molecule and wherein at least one alkyl group has a chain length of at least 8 carbon atoms. Preferably, one or two of the alkyl groups are methyl or ethyl or one of each. Short chain amines as defined herein provide synergistic results when used with such trialkylamines.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: November 20, 2007
    Assignee: Albemarle Corporation
    Inventors: John G. Santobianco, Chau K. Nguyen, Charles A. Brady
  • Patent number: 7297724
    Abstract: Compositions are provided that include a photoinitiator system for free radical polymerization reactions. More specifically, the photoinitiator includes an arylsulfinate ion and a triarylsulfonium ion. Polymerization methods are also provided those include the photoinitiator in a photopolymerizable composition. Additionally, triarylsulfonium arylsulfinate salts are disclosed.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: November 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventor: Rajdeep S. Kalgutkar
  • Patent number: 7297461
    Abstract: A radiation-sensitive resin composition comprising (A) a resin containing a structural unit of the following formula (I), (B) a resin containing a recurring unit of the following formula (II), and (C) a photoacid generator, wherein R1 represents a substituted or unsubstituted divalent (alicyclic) hydrocarbon, R2 represents a lower alkyl group or a monovalent (substituted) alicyclic hydrocarbon group, or any two R2s form in combination a divalent (substituted) alicyclic hydrocarbon group, with the remaining R2 being a lower alkyl group or a monovalent (substituted) alicyclic hydrocarbon group, wherein R3 represents a hydrogen atom, fluorine atom, or trifluoromethyl group, R4 represents a (substituted) hydrocarbon group with a valence of (c+1), (substituted) alicyclic hydrocarbon with a valence of (c+1), or (substituted) aromatic group with a valence of (c+1), R5 represents a hydrogen atom or a monovalent acid-dissociable group, a and b individually represent an integer of 0-3, provided that (a+b)?1 is
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 20, 2007
    Assignee: JSR Corporation
    Inventors: Isao Nishimura, Tsutomu Shimokawa, Makoto Sugiura
  • Patent number: 7294657
    Abstract: A composition comprising a phenylthioethylacrylate, a multifunctional (meth)acrylate, a curing agent, wherein the phenylthioethylacrylate comprises less than about 400 parts per million tin and less than about 2 percent by weight of the corresponding phenylthioethanol. The composition may further comprise at least one unsaturated acid.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: November 13, 2007
    Assignee: General Electric Company
    Inventors: Daniel Robert Olson, Dennis Joseph Coyle, Christian Andrew Huntley, Bret Ja Chisholm, Paul Michael Smigelski, Jr., Alvin Un-Teh Chen
  • Patent number: 7276189
    Abstract: A polymerizable resin material for making a plastic lens includes bisphenol A ethoxylate (1 to 4) dimethacrylate and benzylmethacrylate, and, optionally, one or more stabilizing monomers, preferably selected from trimethylolpropane trimethacrylate, isobornyl methacrylate, ethoxylate nonyl phenol acrylate, ethyoxylate nonyl phenol, and/or 2-phenoxyethyl methacrylate esters. The polymerizable resin material is cured when exposed to heat or visible and/or UV light for a period of about two minutes or less.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: October 2, 2007
    Inventor: Duane L. Wires
  • Patent number: 7273895
    Abstract: A process of preparing water soluble or water swellable polymer comprising the steps, (a) forming an aqueous mixture comprising, (i) a water soluble ethylenically unsaturated monomer or blend of monomers and, (ii) an ultra violet initiator, (b) effecting polymerisation by subjecting the aqueous mixture formed in step (a) to polymerisation conditions to form a polymer of said monomer or monomer blend, (c) subjecting the polymer formed in step (b) to ultra violet light radiation, characterised in that the polymerisation step (b) is conducted substantially in the absence of ultra violet radiation. In one preferred aspect the ultra violet initiator is distributed throughout the polymer formed in step (b). In another preferred aspect the step (c) is conducted ultra violet light at an intensity of up to 500 milli Watts/cm2.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: September 25, 2007
    Assignee: Cibe Specialty Chemicals Water Treatments Ltd.
    Inventors: Anne Flisher, Gareth Ian Naylor, Lee Raistrick
  • Patent number: 7267846
    Abstract: The present invention recognizes that lenses, such as contact lenses, can be pigmented using an ink that includes oligomers, polymers or polymerizable monomers. The ink can be used to make images on or within the lens. Images made using these inks are may be digital or analogue and can be used in a variety of printing methods, including ink-jet printing.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: September 11, 2007
    Inventors: Praful Doshi, James Edward Fox, Philip Gareth Bentley, Jagvi Ramesh Patel, Chidambar L. Kulkarni, Stephen D. Halbe, Hananiah J. Dalton
  • Patent number: 7265161
    Abstract: A multi-photon reactive composition including: (a) at least one reactive species; and (b) multi-photon photoinitiator system; and (c) a plurality of substantially inorganic particles, wherein the particles have an average particle size of less than about 10 microns in diameter.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: September 4, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Catherine A. Leatherdale, Craig R. Schardt, D. Scott Thompson, Wendy L. Thompson