Patent application number | Description | Published |
20120028024 | CELLULAR STRUCTURES AND VISCOELASTIC POLYURETHANE FOAMS - The present invention discloses a structure comprising a plurality of three dimensional cells, wherein each cell comprises exterior walls defining an interior void wherein the walls comprise a plurality of struts and windows, the struts forming borders for the plurality of windows, wherein the struts have a plurality of pores. The present invention further discloses a viscoelastic foam having a ratio of elastic modulus (E′) at 20° C. to 25% compression force deflection (CFD) of 25 to 125. | 02-02-2012 |
20130035413 | CELLULAR STRUCTURES AND VISCOELASTIC POLYURETHANE FOAMS - The present invention discloses a structure comprising a plurality of three dimensional cells, wherein each cell comprises exterior walls defining an interior void wherein the walls comprise a plurality of struts and windows, the struts forming borders for the plurality of windows, wherein the struts have a plurality of pores. The present invention further discloses a viscoelastic foam having a ratio of elastic modulus (E′) at 20° C. to 25% compression force deflection (CFD) of 25 to 125. | 02-07-2013 |
20130085200 | HIGH AIR FLOW POLYURETHANE VISCOELASTIC FOAM - Polyurethane foams and methods for making polyurethane foams are provided. The method may comprise forming a reaction mixture including a toluene diisocyanate (TDI) component, an isocyanate reactive component comprising one or more propylene oxide rich (PO-rich) polyols, one or more ethylene oxide rich (EO-rich) polyols having a combined number average equivalent weight from 100 to 500 comprising from 10% to 28% by weight of the total isocyanate reactive component, water, and a catalyst component comprising at least one catalyst, and subjecting the reaction mixture to conditions sufficient to result in the reaction mixture to expand and cure to form a viscoelastic polyurethane foam having a resilience of less than 25%, as measured according to ASTM D3574 Test H. | 04-04-2013 |
20130178548 | USE OF POLY(BUTYLENE OXIDE) POLYOL TO IMPROVE DURABILITY OF MDI-POLYURETHANE FOAMS - Embodiments of the present invention relate to polyurethane foams having high air flow while maintaining viscoelastic properties. In one embodiment, a reaction system for preparation of a viscoelastic polyurethane foam is provided. The reaction system comprises (a) a polyisocyanate component and (b) an isocyanate reactive component. The isocyanate reactive component comprises (i) from 35 to 74% by weight of the isocyanate reactive component of one or more propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500, (ii) from 24 to 50% by weight of the isocyanate reactive component of one or more ethylene oxide rich (EO-rich) polyols having a combined number average equivalent weight from 200 to 2,800, and (iii)from 2 to 10% by weight of the isocyanate reactive component of one or more butylene oxide rich (BO-rich) polyethers having a number average equivalent weight of 2,000 or more. | 07-11-2013 |
20130178550 | PROCESS FOR MAKING HIGH AIRFLOW AND LOW COMPRESSION SET VISCOELASTIC POLYURETHANE FOAM - A reaction system comprising (a) a polyisocyanate component and (b) an isocyanate reactive component for preparation of a polyurethane foam having high air flow with low compression set is provided. The isocyanate reactive component comprises (i) from 45 to 70% by weight of one or more PO-rich polyols having a combined number average equivalent weight from 210 to 510, (ii) from 20 to 30% by weight of one or more ethylene oxide polyols having a combined number average equivalent weight from 200 to 500, (iii) from 10 to 25% by weight of one or more ethylene oxide-alkylene oxide polyethers having a combined number average equivalent weight from 300 to 800; and (iv) from 0.5 to 15% by weight of one or more PO-rich polyols having a functionality of 1 to 4 and a combined number average equivalent weight of 2,000 to 6,000. | 07-11-2013 |
20130225706 | PROCESS FOR MAKING LOW COMPRESSION AND HIGH AIRFLOW MDI VISCOELASTIC POLYURETHANE FOAM - A reaction system comprising an organic polyisocyanate and an isocyanate reactive component for preparation of a viscoelastic polyurethane foam is provided. The isocyanate reactive component comprises (i) from 10 to 50% by weight of one or more low equivalent weight propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500, (ii) from 45 to 95% by weight of one or more ethylene oxide (EO-rich) polyols having a combined number average equivalent weight from 200 to 800 and an ethylene oxide content from 40% to 65% by weight of the total mass of the EO-rich polyol and at least one of (iii) from 10 to 30% by weight of one or more high equivalent weight PO-rich polyols having a number average equivalent weight from 800 to 2,000 or (iv) from 10 to 40% by weight of one or more propylene oxide co-polymer polyols containing styrene-acrylonitrile. | 08-29-2013 |
20140352904 | ELASTOMERS FOR PAPER MILL EQUIPMENT - Embodiments of the invention provide for paper mill equipment that can better withstand the conditions of a paper Mill. Embodiments encompass paper mill equipment that incorporate a polyurethane layer having a hysteresis value of less than 70% and a permanent set of less than 30%. The polyurethane layer includes a polyurethane produced by curing a mixed composition. The mixed composition includes at least a urethane prepolymer (A) and at least a curing agent (B) having an active hydrogen group (H). The urethane prepolymer (A) has at least one terminal isocyanate group and is obtained by reacting at least a polyisocyanate compound (a) with at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol. The curing agent (B) includes at least an amine compound. The elastomer compositions are also useful to coat the acid pickling roller in the steel industry. | 12-04-2014 |
20140357802 | TOUGHENING AGENT FOR EPOXY THERMOSET - An epoxy thermoset that includes a reaction product of a toughening agent prepared from a reaction of a first epoxy resin and a polyether polyamine, a second epoxy resin and a liquid amine hardener for the toughening agent and the second epoxy resin. The toughening agent is an adduct of the second epoxy resin and the polyether polyamine. The polyether polyamine phase of the toughening agent separates to form particles in the epoxy thermoset, where the particles have a volume average diameter in a range from 20 nanometers to 200 nanometers. | 12-04-2014 |
20140378566 | Foam Composition with Olefin Block Copolymer Gel Particles - The present disclosure is directed to a composition and articles containing the composition. The composition comprises a foam and a plurality of gel particles dispersed in the foam. The gel particles comprise an olefin block copolymer and an oil. | 12-25-2014 |
Patent application number | Description | Published |
20120152328 | SOLAR CELL MODULE - An object of the present invention is to improve reliability and product yield of the solar cell module. A solar cell module includes: a front-surface protection member; a rear-surface protection member; a plurality of solar cells electrically connected by wiring members; a bonding member for encapsulating the solar cells between the front-surface protection member and the rear-surface protection member; and power output wires for taking an output from the solar cells. The rear-surface protection member has an opening at a location facing to extend two adjacent solar cells, and the power output wires are routed out of the rear-surface protection member through the opening. | 06-21-2012 |
20120152329 | SOLAR CELL MODULE - An object of the present invention is to reduce adverse affect of moisture passing through the opening, for improved reliability and product yield of solar cell module. A solar cell module includes: a front-surface protection member; a rear-surface protection member; a plurality of solar cells 11 electrically connected by wiring members; a bonding member for encapsulating the solar cells between the front-surface protection member and the rear-surface protection member; and power output wires for taking an output from the solar cells. The rear-surface protection member has an opening at a location facing a surface of one solar cell, and the power output wires are routed out of the rear-surface protection member through the opening. | 06-21-2012 |
20120152330 | SOLAR CELL MODULE - To prevent the power output wires from being misaligned during the laminating step and reduce moisture entry through the opening, for improved reliability and product yield of solar cell module. A solar cell module includes: a front-surface protection member; a rear-surface protection member; a plurality of solar cells electrically connected by wiring members; a sealing member for sealing the solar cells between the front-surface protection member and the rear-surface protection member; and power output wires for taking an output from the solar cells. The rear-surface protection member has an opening, and a sealing film is disposed to cover the opening. The sealing film has a slit for insertion of the power output wires, and the power output wires are routed out of the rear-surface protection member through the opening. | 06-21-2012 |