Cyclic Anhydride Moiety Patents (Class 252/182.19)
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Patent number: 9745409Abstract: 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: GrantFiled: November 1, 2011Date of Patent: August 29, 2017Assignee: BLUE CUBE IP LLCInventors: Rajesh H. Turakhia, Cui-ping Chen, Bill Z. Dellinger, Ludovic Valette, Itaru Kudose, Ha Q. Pham
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Publication number: 20140348776Abstract: 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: ApplicationFiled: April 22, 2014Publication date: November 27, 2014Inventors: Charles Francis Palmer, JR., Gerald Vandezande
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Publication number: 20140128538Abstract: 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: ApplicationFiled: June 5, 2012Publication date: May 8, 2014Applicant: MLPC INTERNATIONALInventors: Isabelle Yarzabel, Thierry Aubert, Pierre Lugez
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Publication number: 20130276653Abstract: 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: ApplicationFiled: December 19, 2011Publication date: October 24, 2013Applicant: AGFA GRAPHICS NVInventors: Eddie Daems, Luc Vanmaele
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Patent number: 8491758Abstract: 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: GrantFiled: December 9, 2010Date of Patent: July 23, 2013Assignee: BASF SEInventors: Gunter Lipowsky, Steffen Rissel, Volker Schliephake, Ulrich Jäger, Sylke Haremza
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Patent number: 7579393Abstract: 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: GrantFiled: December 30, 2004Date of Patent: August 25, 2009Assignee: BASF AktiengesellschaftInventors: Hauke Malz, Dieter Rodewald, Hermann Graf
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Patent number: 7135525Abstract: 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: GrantFiled: March 15, 2004Date of Patent: November 14, 2006Assignee: Degussa AGInventors: Christoph Petter, Maik Grebe, Sylvia Monsheimer, Franz-Erich Baumann
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Patent number: 6579469Abstract: 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: GrantFiled: October 29, 1999Date of Patent: June 17, 2003Assignee: Closure Medical CorporationInventors: William S. C. Nicholson, Upvan Narang, Ubonwan A. Stewart, Daniel L. Hedgpeth, Ibraheem T. Badejo, Lawrence H. Mainwaring
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Patent number: 6569954Abstract: 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: GrantFiled: June 7, 1995Date of Patent: May 27, 2003Assignee: The Boeing companyInventors: Clyde H. Sheppard, Hyman R. Lubowitz
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Patent number: 6171517Abstract: 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: GrantFiled: February 3, 1994Date of Patent: January 9, 2001Assignee: Uniroyal Chemical Company, Inc.Inventors: Robert Joseph Cornell, Darilyn Helen Roberts, William Robert True