About 76 results
https://drivepatents.com/patents/1075840 · 20 Jul 2005
The present invention relates to a block copolymer having at least one block having an acid group and at least one block having substantially no acid group, wherein one end group of a repeating unit in at least one block of all blocks is oxygen and/or sulf...
https://drivepatents.com/patents/1078992 · 30 Mar 2005
The present invention relates to a laminated membrane comprising a membrane (I) which comprises aromatic polymer electrolyte containing a super strong acid group and a membrane (II) which comprises one compound selected from the group consisting of electro...
https://drivepatents.com/patents/1092294 · 29 Oct 2003
There is provided a simple and easy method of preparation of a positive electrode active material for a non-aqueous secondary battery which comprises a compound comprising lithium, nickel and manganese and having a layered structure. Said method comprises ...
https://drivepatents.com/patents/1092928 · 1 Oct 2003
There is provided a polymer electrolyte which shows excellent characteristics as proton conductive membrane of fuel cells and the like. This polymer electrolyte contains an aromatic polymer which is characterized by having a super strong acid group in a si...
https://drivepatents.com/patents/1093555 · 3 Sep 2003
Provided is an electrode material for non-aqueous secondary batteries which comprises an active material coated with a coating material containing a coating compound comprising Al and O, where peaks of Al of solid NMR measured by spinning a sample of the c...
https://drivepatents.com/patents/1097975 · 5 Mar 2003
A polymer electrolyte composition comprising a polymer electrolyte and at least one of antioxidant selected from a group which consists of a antioxidant containing tri-valent phosphorous and a sulfur-containing antioxidant is provided as a polymer electrol...
https://drivepatents.com/patents/1099236 · 8 Jan 2003
A polymer electrolyte membrane having outstanding water resistance and high thermal resistance, moreover having practical strength required for use as a polymer electrolyte membrane of a solid polymer electrolyte type fuel cell at low price, and a method f...
https://drivepatents.com/patents/1100458 · 13 Nov 2002
A rubber composition useful for a tire is provided. The composition comprises 100 parts by weight of a rubber comprising about 70% by weight or more of a styrene-butadiene rubber based on the rubber, the styrene-butadiene rubber having a styrene content of...
https://drivepatents.com/patents/1101021 · 16 Oct 2002
A porous thermoplastic resin film (15) has micropores formed from a three-dimensional network made of trunk fibrils extending in one direction, and branch fibrils through which trunk fibrils are connected to one another. Density of branch fibrils is higher...
https://drivepatents.com/patents/1101185 · 9 Oct 2002
A polymer electrolyte has a specific disulfonylimide unit (I). A polymer electrolyte has a structural unit of formula (I): -[Ar 1>-SO 2-N ->(X +>)-SO 2-Ar 2>) m-SO 2-N ->(X +>)-SO 2-Ar 1>-O]- (I) Ar 1>, Ar 2>divalent aromatic groups; m : 0-3; and X +>hydro...