Abstract: A scorch inhibitor composition for polyurethane foams is composed of (a) one or more derivatized phenolic compounds in an amount of about 60-80% by weight; (b) one or more aromatic amines in the form of a liquid in an amount of about 15-35% by weight; (c) an alkyl-substituted hydroquinone in an amount of about 4-8% by weight, and (d) phenothiazine at 0 to about 1.0% by weight.
Abstract: Polyurethane polymers are made from a reaction mixture that contains a polyisocyanate, a hydroxylmethyl-containing fatty acid or ester, and another polyol, polyamine or aminoalcohol. The carboxylic acid or ester group on the hydroxymethyl-containing fatty acid or ester are capable of engaging in a variety of reactions with the polyisocyanate and/or amine or hydroxyl groups present in the reaction mixture. This allows for good quality, high molecular weight polymers to be produced even though the hydroxymethyl-containing fatty acid or ester tends to be a low functionality material.
Type:
Grant
Filed:
October 24, 2005
Date of Patent:
April 1, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Hanno R. Van der Wal, Camiel F. Bartelink
Abstract: Embodiments of the present invention disclose viscoelastic foams having a renewable natural resource contents of between about 1 and about 25 wt % of the foam. The foams may have a ratio of elastic modulus (E?) at 20° C. to 25% compression force deflection (CFD) of 25 to 125.
Type:
Grant
Filed:
July 15, 2009
Date of Patent:
April 1, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Bernard E. Obi, Alan K. Schrock, Rogelio R. Gamboa, Asjad Shafi
Abstract: The two-part curable polyurethane foam resin composition uses little or no petroleum-derived raw materials but a plant-derived raw material so that the biomass ratio can be improved, the load on the environment can be reduced, and excellent physical characteristics can be exhibited. The two-part curable polyurethane foam resin composition includes a main agent that contains an isocyanate-terminated urethane prepolymer (A) and a curing agent that contains an isocyanate-reactive compound (B), water (C), and a catalyst (D), in which a polyol component used in (A) and (B) uses a castor oil polyol (b1) having 1.5 to 2.3 functional groups on average and a polyol (b2) prepared by addition polymerization of lactone to polytetramethylene glycol and/or polytetramethylene glycol (b3), the ratio (b1)/(b2) and/or (b3)=15/85 to 60/40 on a mass basis, and a content of the castor oil polyol (b1) is 10 to 45% by mass.
Abstract: To provide a vibration damping composition: excellent in vibration damping property and thermal drying property in a wide temperature range; and sufficiently suppressing sagging of a vibration damping coating film on the vertical surface; and therefore useful for vibration damping materials of various structures. A vibration damping composition comprising an emulsion for vibration damping materials, a foaming agent, and an inorganic pigment, wherein the emulsion for vibration damping materials comprises a particle having a core part formed from an acrylic copolymer (A) and a shell part formed from an acrylic copolymer (B), and at least one of the acrylic copolymers (A) and (B) is prepared by copolymerizing a monomer component comprising methacrylic acid.
Abstract: Foam-forming compositions containing azeotropic or azeotrope-like mixtures containing cis-1,1,1,4,4,4-hexafluoro-2-butene are disclosed. The foam-forming composition contains (a) an azeotropic or azeotrope-like mixture of cis-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, pentane, isopentane, cyclopentane, HFC-245fa, or dimethoxymethane; and (b) an active hydrogen-containing compound having two or more active hydrogens. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
Type:
Grant
Filed:
December 17, 2008
Date of Patent:
February 25, 2014
Assignee:
E I du Pont de Nemours and Company
Inventors:
Gary Loh, Mark L. Robin, Joseph Anthony Creazzo
Abstract: The invention concerns novel weather-resistant polyurethane casting compounds, a process for preparation thereof and use thereof in the building sector.
Abstract: The invention relates to a foamable mixture which contains at least one alkoxysilane-terminated prepolymer and which can be produced of a) at least one alkoxysilane that was functionalized with isocyanate groups and that can be produced of at least one hydroxyfunctional and/or aminofunctional alkoxysilane and at least one diisocyanate or polyisocyanate, and b) at least one compound that contains at least one OH group, and at least one blowing agent, characterized in that the foamable mixture has a dynamic viscosity of 100 to 25,000 mPas, preferably 500 to 10,000 mPas, at 23° C. The invention further relates to a method for producing said foamable mixture. The foamable mixtures according to the invention are suitable for sealing, insulating and mounting joints, roof surfaces, windows and doors or for filling hollow spaces.
Type:
Grant
Filed:
January 20, 2011
Date of Patent:
February 4, 2014
Assignee:
Henkel AG & Co., KGaA
Inventors:
Wilfried Huebner, Milan Sebestian, Christiane Kunze, Lars Zander, Johann Klein
Abstract: The present invention relates to an open-cell polyurethane foam comprising polyester and polyether structures and having a density of 70 to 300 g/L, 1 to 20 cells/cm, a rebound intensity greater than 30%, an elongation at break of greater than 200%, a tear propagation resistance of greater than 1.2 N/mm and a tensile strength of greater than 200 kPa. The present invention further relates to a process for producing inventive open-cell polyurethane sponges and to the use thereof as a pipe cleaning sponge.
Type:
Grant
Filed:
March 13, 2009
Date of Patent:
February 4, 2014
Assignee:
BASF SE
Inventors:
Nils Mohmeyer, Ralf Fritz, Annika Habicht, Daniela Tepe, Frank Prissok, Michael Harms, Bernd Bruchmann, Daniel Schoenfelder, Daniel Freidank, Andreas Emge, Andrea Eisenhardt
Abstract: An isocyanate reactive composition for making a polyurethane foam includes a tertiary amine urethane catalyst comprising a di(C1-C4)alkyl fatty alkyl amine and a polyester polyol. The use of one or more of fatty alkyl tertiary amine serves to reduce hydrolysis of the polyester polyol in the isocyanate reactive composition.
Type:
Grant
Filed:
May 25, 2007
Date of Patent:
January 28, 2014
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Gary Dale Andrew, Juan Jesus Burdeniuc, Goran Zarkov
Abstract: Catalyst compositions for use in forming polyurethane products include a gelling catalyst, a trimerization catalyst, and a cure accelerator. The gelling catalyst is a tertiary amine, mono(tertiary amino) urea, bis(tertiary amino) urea, or a combination of any of these. Any known trimerization catalyst may be used. The cure accelerator may be a diol having at least one primary hydroxyl group, and having from five to 17 chain backbone atoms chosen from carbon, oxygen, or both between the hydroxyl groups, provided that at least five of the backbone atoms are carbon. Alternatively or in addition, the cure accelerator may be a polyol having three or more hydroxyl groups, at least two of which are primary, and having molecular weights between 90 g/mole and 400 g/mole. Delayed initiation of the polyurethane-forming reaction and/or reduced demold time for producing the polyurethane part can be obtained by using these catalyst compositions.
Type:
Grant
Filed:
July 12, 2012
Date of Patent:
December 31, 2013
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Gary Dale Andrew, Mark Leo Listemann, Patrick Gordon Stehley, James Douglas Tobias, John William Miller
Abstract: A flexible polyurethane foam comprises the reaction product of an isocyanate component and an isocyanate-reactive component in the presence of a blowing agent. The isocyanate component comprises a polymeric diphenylmethane diisocyanate component and a monomeric diphenylmethane diisocyanate component. The monomeric diphenylmethane diisocyanate component comprises 2,4?-diphenylmethane diisocyanate and 4,4?-diphenylmethane diisocyanate. The isocyanate-reactive component comprises a polyether polyol having a molecular weight of from about 700 to about 20,000 and a plurality of terminal caps which are substantially free of ethylene oxide groups. The flexible polyurethane foam is substantially free of supplemental flame retardant additives and exhibits flame retardance under flammability tests according to California Technical Bulletin 117 regulations.
Type:
Grant
Filed:
February 24, 2010
Date of Patent:
December 10, 2013
Assignee:
BASF SE
Inventors:
Raymond A. Neff, Theodore M. Smiecinski
Abstract: A fire-resistant polyurethane foam is provided. A hydroxyl-containing inorganic fire retardant is premixed with a polyisocyanate and a polyol, respectively, to form two premixtures. Then, the two premixtures are mixed for reaction to form a fire-resistant polyurethane foam. Preferably, a combination of different particle sizes of the fire retardant is employed to maximize the amount of the fire retardant and increase the fire resistance of the foam.
Type:
Grant
Filed:
October 8, 2010
Date of Patent:
December 10, 2013
Assignee:
Industrial Technology Research Institute
Abstract: The present invention provides trimerization catalyst compositions having an ?,?-unsaturated carboxylate salt and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.
Type:
Grant
Filed:
May 4, 2006
Date of Patent:
November 12, 2013
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Juan Jesus Burdeniuc, Torsten Panitzsch, John Elton Dewhurst
Abstract: The present invention relates to the use of low triphenyl phosphate, high phosphorous content aryl phosphates with high ortho alkylation as flame retardants in polyurethane or polyisocyanurate foams or polyurethane or polyisocyanurate foam formulations.
Type:
Grant
Filed:
March 19, 2008
Date of Patent:
November 5, 2013
Assignee:
Hickory Springs Manufacturing Company
Inventors:
William J. Layman, Jr., Arthur G. Mack, Techen Tsao, Jeffrey T. Aplin, Hoover Chew
Abstract: A building material composite that includes a building substrate at least partially lined with a urethane material. The urethane material of the present invention is typically the reaction product of an A-side that includes an isocyanate and a B-side that typically includes: a blown vegetable oil, a cross-linking agent, and a catalyst; a blown vegetable oil and a multifunctional alcohol; or an esterified polyol and a catalyst where the esterified polyol is typically the reaction product of a first polyol and a blown vegetable oil.
Type:
Grant
Filed:
January 25, 2005
Date of Patent:
November 5, 2013
Assignee:
Rhino Linings Corporation
Inventors:
Thomas M. Kurth, Richard A. Kurth, Robert B. Turner, Les P. Kreifels
Abstract: The present invention provides trimerization catalyst compositions and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions. The catalyst composition is the contact product of at least one ?,?-unsaturated carboxylate salt and at least one second carboxylate salt.
Type:
Grant
Filed:
May 4, 2006
Date of Patent:
October 8, 2013
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Juan Jesus Burdeniuc, Torsten Panitzsch, John Elton Dewhurst, Gamini Ananda Vedage
Abstract: To provide a flexible polyurethane foam which is excellent in low resiliency and durability without using a plasticizer and which shows little change in hardness against a change in temperature and at the same time, has high air permeability. A process for producing a flexible polyurethane foam, which comprises reacting a polyol mixture comprising polyol (A), polyol (B) and monool (D) with a polyisocyanate compound in the presence of a blowing agent etc. at an isocyanate index of at least 90. Polyol (A) is a polyether polyol having an average of 2-3 hydroxyl groups and a hydroxyl value of from 10 to 90 mgKOH/g, obtained by ring-opening addition polymerization of an alkylene oxide to an initiator using a double metal cyanide complex catalyst; Polyol (B) is a polyether polyol having an average of 2-3 hydroxyl groups and a hydroxyl value of from 15 to 250 mgKOH/g, other than the polyol (A); and Monool (D) is a polyether monool having a hydroxyl value of from 10 to 200 mgKOH/g.
Abstract: An embodiment of a closed-cell polymeric rigid foam may be made using a one-shot method and a reaction system that includes a hydrofluoroalkene physical blowing agent and a polyol mixture having an aminic polyol. The hydrofluoroalkene blowing agent has 3 to 5 carbon atoms and a boiling point between 10° C. and 40° C. at 1 atmosphere pressure. Embodiments of rigid foams may have high closed cell content and are particularly well suited for thermal insulation.
Type:
Grant
Filed:
May 20, 2010
Date of Patent:
September 24, 2013
Assignee:
Huntsman International LLC
Inventors:
Sachchida Nand Singh, Jinhuang Wu, Alan J. Hamilton
Abstract: A polishing pad generates very few scratches on a surface of a polishing object, and is excellent in planarization property. The polishing pad has a high polishing rate and is excellent in planarization property. The polishing pad grooves become very little clogged with abrasive grains or polishing swarf during polishing and, even when continuously used for a long period of time, the polishing rate is scarcely reduced.