Cyclic Anhydride Moiety Patents (Class 252/182.19)
  • Patent number: 9745409
    Abstract: A liquid epoxy resin composition having a reduced tendency to crystallize including at least one liquid epoxy resin having the following generic chemical Structure (I): where n is 0 or an integer of 1 or more; and wherein n=0 is in the range of between about 1 wt % and about 90 wt %; wherein; n=1 is in the range of between about 7 wt % and about 20 wt %; n=2 is in the range of between about 0.8 wt % and about 3 wt %; and n=3 and above is in the range of about 0 wt % and about 2 wt %.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: August 29, 2017
    Assignee: BLUE CUBE IP LLC
    Inventors: Rajesh H. Turakhia, Cui-ping Chen, Bill Z. Dellinger, Ludovic Valette, Itaru Kudose, Ha Q. Pham
  • Publication number: 20140348776
    Abstract: The invention provides a composition comprising: (a) about 0% to 99% by weight of at least one resin wherein the resin is selected from the group consisting of epoxy, latex, polyurethane, polyurea, polyspartic, or alkyd resins; (b) about 1%-99% by weight of tristyrenated phenol or distyrenated phenol; and (c) optionally about 2% to 98% by weight of an additional solvent.
    Type: Application
    Filed: April 22, 2014
    Publication date: November 27, 2014
    Inventors: Charles Francis Palmer, JR., Gerald Vandezande
  • Publication number: 20140128538
    Abstract: The present invention relates to the field of the vulcanization of unsaturated polymers, in particular unsaturated halogenated polymers and more particularly unsaturated chlorinated polymers, such as, for example, polychloroprene, by using, as vulcanization agent, a mixture of bis(2,5-dimercapto-1,3,4-thiadiazole) and at least one organic base. The present invention relates to the process for the vulcanization of the said polymers with the said vulcanization mixture.
    Type: Application
    Filed: June 5, 2012
    Publication date: May 8, 2014
    Inventors: Isabelle Yarzabel, Thierry Aubert, Pierre Lugez
  • Publication number: 20130276653
    Abstract: The present invention relates to a curable jettable fluid for making a flexographic printing master characterized in that the jettable fluid has a viscosity measured at jetting temperature of less than 15 mPa·s and comprises at least 50 wt. % of a mixture of a cyclic monofunctional (meth)acrylate monomer, a monofunctional urethane acrylate oligomer and a difunctional (meth)acrylate monomer.
    Type: Application
    Filed: December 19, 2011
    Publication date: October 24, 2013
    Applicant: AGFA GRAPHICS NV
    Inventors: Eddie Daems, Luc Vanmaele
  • Patent number: 8491758
    Abstract: A process for inhibiting polymerization of (meth)acrylic acid and/or (meth)acrylic esters by introducing an oxygenous gas into the (meth)acrylic acid and/or the (meth)acrylic ester, in which the (meth)acrylic acid and/or the (meth)acrylic ester has a degree of purity of at least 95% and is in the liquid state.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: July 23, 2013
    Assignee: BASF SE
    Inventors: Gunter Lipowsky, Steffen Rissel, Volker Schliephake, Ulrich Jäger, Sylke Haremza
  • Patent number: 7579393
    Abstract: The invention relates to mixtures (1) comprising (a) polytetrahydrofuran and (b) stabilizers having a molecular weight of from 600 g/mol to 10000 g/mol and comprising at least two phenolic groups.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 25, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Hauke Malz, Dieter Rodewald, Hermann Graf
  • Patent number: 7135525
    Abstract: The present invention relates to a sinter powder composed of polyamide which also comprises PMMI, PMMA, or copolymers with PMMI, in particular PMMI-PMMA copolymers, to the use of this sinter powder for laser-sintering, and also to moldings produced from this sinter powder. The moldings made from the powder of the invention have marked advantages over conventional products in their appearance and in their surface quality, especially as far as roughness and dimensional stability during selective laser sintering (SLS) are concerned. In addition, moldings produced from the sinter powder of the invention also have better mechanical properties than moldings based on conventional nylon-12 powders, in particular in terms of modulus of elasticity and tensile strength. These moldings also have a density close to that of injection moldings.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: November 14, 2006
    Assignee: Degussa AG
    Inventors: Christoph Petter, Maik Grebe, Sylvia Monsheimer, Franz-Erich Baumann
  • Patent number: 6579469
    Abstract: An adhesive composition that contains a preservative is particularly useful as a medical adhesive and can include alkyl cyanoacrylate monomers. The preservative is preferably soluble in the monomer. The composition may optionally be sterilized by placing a mixture of a polymerizable adhesive monomer and a preservative in a container, sealing the container, and sterilizing the mixture and the container.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: June 17, 2003
    Assignee: Closure Medical Corporation
    Inventors: William S. C. Nicholson, Upvan Narang, Ubonwan A. Stewart, Daniel L. Hedgpeth, Ibraheem T. Badejo, Lawrence H. Mainwaring
  • Patent number: 6569954
    Abstract: The physical properties of high performance composites can be tailored by using blends to make the composites. The resulting composites are relatively easy to make and have long-term, high performance capabilities even in harsh service conditions. The blends of the present invention include at least one oligomer having an aromatic, aliphatic, or mixed aromatic and aliphatic backbone from one chemical family and an unsaturated hydrocarbon end cap and at least one polymer from a different chemical family. Upon curing, the oligomer in the blend addition polymerize to form composites possessing advanced properties with respect to those exhibited by the pure oligomer or the pure polymer. Coreactive oligomer blends can be used instead of a pure oligomer to form composites that include addition polymers, block copolymers, and the compatible polymer, thereby further achieving a tailoring of properties in the cured composite. The blends can be prepregged and cured to form composites.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 27, 2003
    Assignee: The Boeing company
    Inventors: Clyde H. Sheppard, Hyman R. Lubowitz
  • Patent number: 6171517
    Abstract: This disclosure is directed to an antioxidant compound which reduces the rate at which insoluble sulfur converts to a migratable form of sulfur in an unvulcanized compound.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: January 9, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Robert Joseph Cornell, Darilyn Helen Roberts, William Robert True