Patent application number | Description | Published |
20080297064 | High-pressure discharge lamp and light sources device using the same - The high-pressure discharge lamp includes: a pre-seal glass inserted in the internal space of each of seal portions and integrally comprising a metal foil sheathing portion which sheathes a metal foil, an electrode sheathing portion which sheathes a portion of an electrode that extends from a first end of the metal foil toward a base portion and an external lead pin sheathing portion which sheathes a portion of an external lead pin that extends outwardly from the other end of the metal foil; and a conductor for generating discharge between the conductor and the metal foil. The electrode sheathing portion is fused to the base portion. The external lead pin sheathing portion has an outer surface hermetically fused to an inner surface of one of the seal portions. A clearance hermetically sealed between the pre-seal glass and the seal portion encapsulates inert gas therein. | 12-04-2008 |
20110044025 | LIGHT EMITTING DEVICE - The light emitting device comprises a point light source, a solid and transparent light guide, a recess arranged on center of a light receiving surface of the light guide, a concave lens formed on a surface of the recess. A reflecting side surface is a revolving surface determined by revolving a parabola passing through one point of peripheral border of the light receiving surface and the other point of peripheral border of the light radiating surface, and having a focal point on the other point of peripheral border. The point light source is arranged apart from the light receiving surface so as to divide the light from the point light source into light entering into the light guide through the surface of the recess and light entering into the light guide through some part of the light receiving surface other than the recess. | 02-24-2011 |
20110255290 | LIGHT EMITTING DEVICE - The light emitting device comprises: a bowl-shaped reflector; a point light source; and a combined lens provided on the light axis of the point light source. And the combined lens has: a convex lens part having a focal point coinciding with the point light source, refracting center light around the light axis into parallel light; and a concave lens part provided around the convex lens part, and refracting and diffusing light having an angle with the light axis larger than an angle between the center light and the light axis so as to increase the angle with the light axis. A virtual focal point of the light refracted and diffused with the concave lens part coincides with the focal point of the paraboloid of revolution. | 10-20-2011 |
20150294851 | HIGH PRESSURE DISCHARGE LAMP AND LIGHTING METHOD THEREOF - The present high-pressure discharge lamp is composed of an arc tube part having an internal space, a pair of tungsten electrodes disposed in opposition to each other within the internal space, and mercury and halogen encapsulated in the internal space. The halogen is excessively encapsulated into the internal space relatively to the capacity of the internal space so as to establish an appropriate halogen cycle when the mercury partially deposits without evaporating. | 10-15-2015 |
Patent application number | Description | Published |
20110287202 | LAMINATED ARTICLE COMPRISING FLUORINE-CONTAINING RESIN LAYER AND ELASTOMER LAYER - The present invention provides a laminated article having improved adhesion of the fluorine-containing resin layer to the elastomer layer. The laminated article comprises a fluorine-containing resin layer (a) formed using a fluorine-containing resin having a carbonyl group, an olefin group or an amino group at an end of a polymer trunk chain or an end of a polymer side chain, and an elastomer layer (b) formed using an elastomer composition. | 11-24-2011 |
20120107617 | LAMINATE - The present invention provides a vulcanized laminate in which a rubber layer and a fluororesin layer are firmly adhered to each other without using an adhesive or performing a surface treatment on the rubber layer and the fluororesin layer. The present invention relates to a laminate comprising a rubber layer (A) and a fluororesin layer (B) on the rubber layer (A), wherein the rubber layer (A) is a layer made of a rubber composition for vulcanization, the rubber composition for vulcanization contains an unvulcanized rubber (a1); at least one compound (a2) selected from the group consisting of a 1,8-diazabicyclo(5.4.0)undec-7-ene salt, a 1,5-diazabicyclo(4.3.0)-non-5-ene salt, 1,8-diazabicyclo(5.4.0)undec-7-ene, and 1,5-diazabicyclo(4.3.0)-non-5-ene; magnesium oxide (a3); and silica (a4), the amount of the compound (a2) is larger than 1.0 part by mass and not larger than 5.0 parts by mass, for each 100 parts by mass of the unvulcanized rubber (a1), the fluororesin layer (B) is a layer made of a fluoropolymer composition, and the fluoropolymer composition contains a fluoropolymer (b1) having a copolymer unit derived from chlorotrifluoroethylene. | 05-03-2012 |
20120108753 | CROSSLINKABLE FLUORINE RUBBER COMPOSITION, FLUORINE RUBBER MOLDED ARTICLE, AND METHOD FOR PRODUCING THE SAME - Provided is a cross-linkable fluororubber composition capable of giving a fluororubber cross-linked molded article that has excellent mechanical strength and low friction properties. The cross-linkable fluororubber composition includes a coagulum obtained by co-coagulating a fluororubber (A) and a fluororesin (B). | 05-03-2012 |
20120286479 | VEHICLE ENGINE OIL SEAL - The present invention provides a vehicle engine oil seal having excellent sliding properties over the entire rotation range of engines from a low rotation range to a high rotation range. The present invention is a vehicle engine oil seal comprising: an elastic member with a seal lip portion having at least a main lip portion, wherein the elastic member is formed of a composition containing a fluororubber and a fluororesin and has projecting portions at least on a surface of the main lip portion, the projecting portions being substantially formed of the fluororesin contained in the composition, the fluororesin is a copolymer including a polymerization unit derived from ethylene and a polymerization unit derived from tetrafluoroethylene, and the fluororubber is a polymer including a polymerization unit derived from vinylidene fluoride. | 11-15-2012 |
20120299251 | VEHICLE TRANSMISSION OIL SEAL - The present invention provides a vehicle transmission having excellent sliding properties over the entire speed range of engines from a low speed range to a high speed range. The present invention is a vehicle transmission oil seal comprising: an elastic member with a seal lip portion having at least a main lip portion, wherein the elastic member is formed of a composition containing a fluororubber and a fluororesin and has projecting portions at least on a surface of the main lip portion, the projecting portions being substantially formed of the fluororesin contained in the composition, the fluororesin is a copolymer including a polymerization unit derived from ethylene and a polymerization unit derived from tetrafluoroethylene, and the fluororubber is a polymer including a polymerization unit derived from vinylidene fluoride. | 11-29-2012 |
20120325175 | VEHICLE VALVE STEM SEAL - The present invention provides a vehicle valve stem seal having both durability and sliding properties at an extremely high level in addition to usual sealing performance. The present invention is a vehicle valve stem seal comprising an elastic member with a seal lip portion on an end of a valve stem guide, the seal lip portion slidably closely contacting with a valve stem of an engine, wherein the elastic member is formed of a composition containing a fluororubber and a fluororesin and has projecting portions at least on a surface of the seal lip portion, the projecting portions being substantially formed of the fluororesin contained in the composition, the fluororesin is a copolymer including a polymerization unit derived from ethylene and a polymerization unit derived from tetrafluoroethylene, and the fluororubber is a polymer including a polymerization unit derived from vinylidene fluoride. | 12-27-2012 |
20130280490 | FLUORINE RUBBER MOLDED ARTICLE - A fluororubber molded article produced by crosslinking a crosslinkable composition containing a fluororubber (A) and a fluororesin (B), wherein the fluororubber molded article has a surface with projecting portions, an area ratio of areas having the projecting portions to the entire surface of the fluororubber molded article is not less than 0.06, a volume ratio of the fluororesin (B) to the fluororubber molded article is 0.05 to 0.45, the area ratio of the areas having the projecting portions is 1.2 times or more larger than the volume ratio of the fluororesin (B), and the fluororesin (B) is a tetrafluoroethylene/hexafluoropropylene copolymer. | 10-24-2013 |
20140378616 | CROSSLINKABLE FLUORINE RUBBER COMPOSITION, FLUORINE RUBBER MOLDED ARTICLE, AND METHOD FOR PRODUCING SAME - A crosslinkable fluororubber composition containing: a fluororubber (A); and a fluororesin (B), wherein the fluororesin (B) is a copolymer (B1) consisting of tetrafluoroethylene units (a) and hexafluoropropylene units (b) or a copolymer (B2) containing tetrafluoroethylene units (a), hexafluoropropylene units (b), and polymerized units (c) derived from a monomer copolymerizable with tetrafluoroethylene and hexafluoropropylene, the copolymer (B1) satisfies the condition that the ratio (a)/(b) is (80.0 to 87.3)/(12.7 to 20.0) on a molar basis, and the copolymer (B2) satisfies the condition that the ratio (a)/(b) is (80.0 to 90.0)/(10.0 to 20.0) on a molar basis, and the ratio (c)/{(a)+(b)} is (0.1 to 10.0)/(90.0 to 99.9) on a molar basis. | 12-25-2014 |
20150014941 | OIL SEAL FOR AUTOMOBILE - An oil seal for automobiles including an elastic component having a seal lip portion. The elastic component consists of a composition containing fluororubber and fluororesin. The seal lip portion has protrusions at least on the surface thereof. The protrusions substantially consist of the fluororesin contained in the composition. The fluororesin is a copolymer containing a polymerized unit based on tetrafluoroethylene and a polymerized unit based on hexafluoropropylene. | 01-15-2015 |
20150041473 | AUTOMOTIVE FILLER CAP - The object of the present invention is to provide an automotive filler cap with excellent low adhesion property. The present invention relates to an automotive filler cap configured to be attached to a filler opening of an automobile, the automotive filler cap including a gasket configured to seal the filler opening by being pressed against the filler opening, the gasket being made of a composition that contains a fluororubber and a fluororesin, the fluororesin being precipitated on the surface of the gasket, the fluororesin comprising a copolymer that contains a polymerized unit based on tetrafluoroethylene and a polymerized unit based on hexafluoropropylene. | 02-12-2015 |
Patent application number | Description | Published |
20090011164 | Thermoplastic Polymer Composition - An object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. The thermoplastic polymer composition comprises 10 to 95% by weight of a fluororesin (A) and 90 to 5% by weight of a crosslinked fluororubber (B), in which the fluororubber (A) comprises a fluorine-containing ethylenic polymer (a) having a melting point of 120° to 330° C. and the crosslinked fluororubber (B) is obtained by cross-linking dynamically at least one kind of fluororubber (b-1) or a fluorine-containing thermoplastic elastomer (b-2) in the presence of the fluororubber (A) and a crosslinking agent (C) under melting condition. | 01-08-2009 |
20090202769 | Thermoplastic Polymer Composition - An object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance and chemical resistance. Further object of the present invention is to provide a molded article, a sealing material, peripheral parts of fuel system, a fuel hose and a fuel container comprising the thermoplastic polymer composition. The present invention relates to a thermoplastic polymer composition comprising a fluororesin (A) containing a fluorine-containing ethylenic polymer (a), a crosslinked fluororubber (B) in which at least a part of at least one kind of fluororubber (b) is crosslinked, and a fluorine-containing thermoplastic elastomer (C). | 08-13-2009 |
20110086983 | THERMOPLASTIC POLYMER COMPOSITION AND PROCESS FOR PREPARING THERMOPLASTIC POLYMER COMPOSITION - The object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a molded article, a laminated article, a hose for industrial use, a tube for industrial use, a fuel hose and a fuel tube comprising the thermoplastic polymer composition. Further object of the present invention is to provide a process for preparing a thermoplastic polymer composition. The thermoplastic polymer composition comprises a fluororesin (A) comprising a fluorine-containing ethylenic polymer (a) and a crosslinked fluororubber (B) in which at least a part of at least one kind of fluororubber (b) is crosslinked, and a weight ratio of the fluororesin (A) to the crosslinked fluororubber (B) is 85/15 to 40/60, a fuel permeation coefficient of a molded article obtained from the composition is not more than 40 g·mm/m | 04-14-2011 |
20110184126 | METHOD FOR PRODUCING FLUORINE-CONTAINING RUBBER MOLDED ARTICLE - There is provided a crosslinkable fluorine-containing rubber composition being capable of giving a fluorine-containing rubber crosslinked and molded article having a low friction coefficient and assuring an increased proportion of a fluorine-containing resin around the surface of a fluorine-containing rubber, a molded article obtained by crosslinking the composition, and a method for producing the molded article. The crosslinkable fluorine-containing rubber composition comprises a fluorine-containing rubber (A) comprising vinylidene fluoride unit, a fluorine-containing resin (B) and a polyol crosslinking agent (C), | 07-28-2011 |
20110290363 | THERMOPLASTIC POLYMER COMPOSITION AND PROCESS FOR PREPARING THERMOPLASTIC POLYMER COMPOSITION - A fuel hose including a laminated article having: a layer including a thermoplastic polymer composition which includes a fluororesin (A) including a fluorine-containing ethylenic polymer (a) and a crosslinked fluororubber (B) including a fluororubber (b) that has been at least partially crosslinked. The fluorine-containing ethylenic polymer (a), the at least partially crosslinked fluororubber (b) and a weight ratio of the fluororesin (A) to the crosslinked fluororubber (B) are as defined herein. A fuel permeation coefficient and a tensile modulus of elasticity of a molded article including the thermoplastic polymer composition is not more than 20 g·mm/m | 12-01-2011 |
20120231196 | LAMINATED ARTICLE COMPRISING FLUORINE-CONTAINING RESIN LAYER AND ELASTOMER LAYER - The present invention provides a laminated article having improved adhesion of the fluorine-containing resin layer to the elastomer layer. The laminated article comprises a fluorine-containing resin layer (a) formed using a fluorine-containing resin having a carbonyl group, an olefin group or an amino group at an end of a polymer trunk chain or an end of a polymer side chain, and an elastomer layer (b) formed using an elastomer composition. | 09-13-2012 |