| Patent Number |
Title Of Patent |
Date Issued |
| 7258941 |
Polymer electrolyte for solid polymer type fuel cell and fuel cell |
August 21, 2007 |
| A polyelectrolyte for a solid polymeric fuel cell comprising an aromatic polyether sulfone block copolymer comprising a hydrophilic segment containing sulfonic acid groups and a hydrophobic segment having no sulfonic acid group at a hydrophilic segment weight fraction W2 to hydrophob |
| 7240398 |
Opening and closing damping apparatus |
July 10, 2007 |
| An annular groove part with a predetermined depth is formed in a rotation body, and a wall surface of the annular groove part is sealed by a second protrusion elongated annular part formed in an inner circumference of a rotor attached to the annular groove part, and a wall surface of the |
| 6541085 |
Tubular molded product using nylon 12 |
April 1, 2003 |
| Disclosed is a member of nylon 12 having a relative viscosity of from 1.9 to 3.5 when measured in 98% sulfuric acid at a concentration of 10 g/dm.sup.3 and at 25.degree. C. and a melt flow rate of 0.1 g/10 min. or more when measured at 235.degree. C. under a load of 2,160 g, wherein said |
| 6538099 |
Nylon 12 composition |
March 25, 2003 |
| Disclosed is a member of nylon 12 having a relative viscosity of from 1.9 to 3.5 when measured in 98% sulfuric acid at a concentration of 10 g/dm.sup.3 and at 25.degree. C. and a melt flow rate of 0.1 g/10 min. or more when measured at 235.degree. C. under a load of 2,160 g, wherein said |
| 6294644 |
Nylon 12, nylon composition, method for producing nylon 12, and tubular molded product using nyl |
September 25, 2001 |
| Disclosed is a member of nylon 12 having a relative viscosity of from 1.9 to 3.5 when measured in 98% sulfuric acid at a concentration of 10 g/dm.sup.3 and at 25.degree. C. and a melt flow rate of 0.1 g/10 min. or more when measured at 235.degree. C. under a load of 2,160 g, wherein said |
| 5308569 |
Process for the preparation of aromatic polyimide film |
May 3, 1994 |
| A process for the preparation of an aromatic polyimide film includes the steps of casting a polyamide acid solution containing an imidization agent on a support in the form of a film, heating the filmy cast solution on the support at a temperature of 80.degree. to 200.degree. C. to obtai |
| 5180627 |
Heat resistant adhesive composition |
January 19, 1993 |
| The disclosed heat resistant adhesive composition comprises a polyimidesiloxane obtained from a biphenyltetracarboxylic acid or its derivative and a diamine composition comprising a diaminopolysiloxane and an aromatic diamine, an epoxy compound having an epoxy group, and an epoxy com |
| 5147943 |
Biphenytetracarboxylic acid-derived polyimides with polyepoxides |
September 15, 1992 |
| A thermosetting resin composition useful for heat-resistant adhesive agents and cured shaped articles, comprising (A) a terminal imide oligomer having hydroxyl groups prepared, in an organic medium, from a biphenyltetracarboxylic acid ingredient, an aromatic diamine ingredient and a |
| 5128444 |
Thermosetting resin composition and thermosetting dry film |
July 7, 1992 |
| A thermosetting resin composition, a solution composition of the resin and a thermosetting dry film formed out of the resin are disclosed. The thermosetting resin composition contains a specific resin component as the main component. The resin component consists of (A) 100 weight parts o |
| 5026767 |
Antistatic aromatic polyimide article |
June 25, 1991 |
| An antistatic aromatic polyimide article comprises an aromatic polyimide and a small amount of an antistatic agent. The antistatic agent is a sulfonate having the formula (I):wherein R is a substituted or unsubstituted aryl group; M is an alkali metal; and n is 1 or 2; or a sulfinate hav |
| 4963645 |
Terminal-modified imide oligomer and solution composition of the same |
October 16, 1990 |
| A terminal-modified imide oligomer having an unsaturated group as a terminal group and an imide bond inside of the oligomer which is produced by reacting 2,3,3',4'-or 3,3',4,4'-biphenyltetracarboxylic acid or its derivative, a diamine compound, and an unsaturated dicarboxylic acid or |
| 4931365 |
Aromatic polyimide film having metallic surface |
June 5, 1990 |
| An aromatic polyimide film having a metallic surface comprises a substrate film of an aromatic polyimide containing essentially no inorganic particle, an aromatic polyimide resin layer containing non-conductive metal oxide particles dispersed therein and a metal layer, superposed in |
| 4898753 |
Process for the preparation of aromatic polyimide film |
February 6, 1990 |
| A process for the preparation of an aromatic polyimide film having a surface provided with extremely small sized protrusions having an average diameter of 40 to 2,000 angstroms, the number of protrusions being in the range of 1.times.10.sup.4 to 1.times.10.sup.9 /mm.sup.2 is disclosed. T |
| 4869861 |
Process for producing a shaped and drawn aromatic imide polymer article |
September 26, 1989 |
| A shaped and drawn aromatic imide polymer article, for example, a film or filament, is produced by shaping an aromatic polyamic acid solution containing an imidizing agent in a polar organic solvent while simultaneously imidizing a portion of the aromatic polyamic acid to an extent s |
| 4789654 |
Hydrotreating catalysts |
December 6, 1988 |
| A catalyst comprising metal components selected from Group VIA and Group VIII of the Periodic Table on a carrier comprising an alumina-containing inorganic oxide and a faujasite type Y zeolite having a specified particle size distribution, can exhibit a superior desulfurizing activity an |
