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| Number | Title | Issue Date |
| 7388068 | Copolymers made of alkylene oxides and glycidyl ethers and use thereof as polymerizable emulsifiers Disclosed are copolymers made of alkylene oxides and glycidyl ethers according to formula (I) in which R1 is hydrogen or a C1-C4-alkyl radical, R2 and R4 are an alkyl o... | 06/17/2008 |
| 7362507 | Polarizing beam splitter A polarizing beam splitter is disclosed that includes a first prism, a second prism, and a reflective polarizing film disposed between the first prism and the second prism. The first prism comprises a first polymeric material, and has a first outer curved surface an... | 04/22/2008 |
| 7153622 | Electrostatic charge image developing toner, producing method therefor, image forming method and image forming apparatus utilizing the toner, construct and method for making the construct A construct that comprises a base material and a polyhydroxyalkanoate, wherein at least a part of the base material is coated with the polyhydroxyalkanoate, and the polyhydroxyalkanoate comprises a 3-hydroxyalkanoic acid unit other than 3-hydroxypropionic acid unit,... | 12/26/2006 |
| 7045321 | POLYHYDROXYALKANOATE CONTAINING UNIT WITH PHENYLSULFANYL STRUCTURE IN THE SIDE CHAIN, PROCESS FOR ITS PRODUCTION, CHARGE CONTROL AGENT, TONER BINDER AND TONER WHICH CONTAIN NOVEL POLYHYDROXYALKANOATE, AND IMAGE-FORMING METHOD AND IMAGE-FORMING APPARATUS WHICH MAKE USE OF THE TONER A polyhydroxyalkanoate characterized by having in the molecule a unit represented by Chemical Formula (1): wherein n may assume any one integral value within the range of from 1 to 8. Also disclosed are a process for p... | 05/16/2006 |
| 7026438 | Liquid phenolic sulphur-containing antioxidants The invention relates to liquid sulphur-containing antioxidants and to compositions comprising them. The novel lubricant compositions comprise the reaction product of a selected group of 5-tert-butyl-4-hydroxy-3-methyl(or tert-butyl)phenyl substituted carboxylic aci... | 04/11/2006 |
| 6911521 | Polyhydroxyalkanoate that comprises unit having substituted or unsubstituted (phenylmethyl) sulfanyl structure in side chain thereof and process for producing the same A polyhydroxyalkanoate that comprises a unit represented by the following chemical formula (1): wherein R1 is a substituent of an aromatic ring selected from the group consisting of H, CH3, C2H | 06/28/2005 |
| 6872333 | Enic compounds, sulfur-containing polyenic compound, sulfur-containing polythiol compound, high refractive index photocurable composition and cured product thereof A composition containing 3,3′-thiobis(propane-1,2-dithiol) and one or more enic compounds which composition is photocurable and can give a cured product having a high refractive index and adequate hardness. ... | 03/29/2005 |
| 6869782 | Polyhydroxyalkanoate that comprises unit having (methylsulfanyl) phenoxy structure in side chain thereof and process for producing the same A polyhydroxyalkanoate that comprises a unit represented by the following chemical formula (1): wherein x is an integer of 1 to 8 being the same or different in the polyhydroxyalkanoate. The microbial production proces... | 03/22/2005 |
| 6855472 | POLYHYDROXYALKANOATE, PRODUCING METHOD THEREFOR, CHARGE CONTROL AGENT CONTAINING SUCH POLYHYDROXYALKANOATE, TONER CONTAINING SUCH CONTROL AGENT AND IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS UTILIZING SUCH TONER The invention is to provide polyhydroxyalkanoate of a novel structure enabling application to wider fields, and a producing method therefor. The invention also provides a biodegradable charge control agent having excellent charging characteristics, excellent dispers... | 02/15/2005 |
| 6828412 | Degradable polymers A polymer comprising: a polymeric backbone comprising at least one unit having the structure (I), wherein R-R4 comprise groups selected from the group consisting of H, C1-C12 alkyl, C6-C18 aryl, C7-C | 12/07/2004 |
| 6784280 | Polysuccinimide(CO) polymer derivate and process for production thereof A process for producing a polysuccinimide (co)polymer derivative which permits the reaction of a polysuccinimide (co)polymer with a Lewis base in a wide temperature range (90° to 300° C.) without using a pH-adjusting agent is provided. The process for producing a ... | 08/31/2004 |
| 6518392 | Dielectric compositions, preparation thereof, and integrated circuit devices fabricated therewith A novel dielectric composition is provided that is useful in the manufacture of integrated circuit devices and integrated circuit packaging devices. The dielectric composition is prepared by imidizing and curing an oligomeric precursor compound comprised ... | 02/11/2003 |
| 6395867 | Polymers with thiol terminal function A polymer chosen from hyperbranched polymers and dendrimers containing at least one functional group of formula (I): ##STR1## in which: Y is chosen from an oxygen atom and an NH group; A is chosen from linear, branched and cyclic, saturated and unsaturate... | 05/28/2002 |
| 6355771 | Modified polyaspartic acid, method for production thereof and use thereof A modified polyaspartic acid having a defined branched structure in the main chain thereof is provided. An anhydro polyaspartic acid is modified by a novel method of modification using a mercapto amine precursor, mercapto amine, or a salt of mercapto amin... | 03/12/2002 |
| 6228977 | Nonlinear optically active copolymers The nonlinear optically active copolymers according to the invention are polyadducts of at least one organic di- or polycyanate and a nonlinear optically active compound, i.e. a chromophore. These copolymers have outstanding thermal stability and are suit... | 05/08/2001 |
| 6204356 | Polybenzoxazole resin and precursor thereof Heat resistant polybenzoxazole resins useful as layer insulation films and protective films for semiconductor, layer insulation films for multilayer circuits, cover coats for flexible copper-clad sheets, solder resist films, liquid crystal-aligned films a... | 03/20/2001 |
| 6184337 | Adhesive tape for electronic parts and liquid adhesive The present invention provide a novel polyimide which is soluble in organic solvents and excels in heat resistance, and to a process for producing the polyimide. The polyimide of the present invention comprises a repeating unit represented by the formula ... | 02/06/2001 |
| 6172182 | Process for the manufacture of epoxy compounds Process for the manufacture of epoxy compounds having the formula ##STR1## wherein Rb represents a group selected from those of the formulae ##STR2## Rg.paren open-st.Q.paren close-st.b -alkyl(Q.paren close-st.a --~, ##STR3## by... | 01/09/2001 |
| 6153350 | Polybenzoxazole and polybenzothiazole precursors The polybenzoxazole and polybenzothiazole precursors of the invention have the following partial structure: ##STR1## where: A1 to A6 are--independently of one another--H, F, CH3, CF3, OCH3, OCF | 11/28/2000 |
| 6121409 | Poly(vinylamine)-based superabsorbent gels and method of manufacturing the same Poly(vinylamine)-based superabsorbent gels are disclosed. The superabsorbent gels either comprise a mixture of a poly(vinylamine) polymer and an acidic water-absorbing polymer, like polyacrylic acid, or comprise a salt of a poly(vinylamine) polymer. An im... | 09/19/2000 |
| 6120970 | Polybenzoxazole and polybenzothiazole precursors The polybenzoxazole and polybenzothiazole precursors of the invention have the following partial structure: ##STR1## where: A1 to A7 are--independently of one another--H, F, CH3, CF3, OCH3, OCF | 09/19/2000 |
| 6117970 | Sodium salt of [poly-(2,5-dihydroxyphenylene)]-4-thiosulphuric acid of linear structure as regulator of cell metabolism and production method thereof Sodium salt of (poly-(2,5-dihydroxy-phenylene))-4-thiosulfonic acid, being a cyclo-linear polymer, is proposed as the regulator of a cell metabolism. There are provided for the production of the claimed preparation: interaction of para-benzoquinone and so... | 09/12/2000 |
| 6030495 | Method for increasing brightness in pulp paper and polymeric materials Novel substantially odor-free polymeric thiol-containing antioxidant compounds suitable for preventing light induced brightness reversion or yellowing of pulps and papers and polymeric materials are described. The novel compounds are based on a polymeric ... | 02/29/2000 |
| 6001958 | Crosslinkable polymer, particularly for optical and non-linear optical use, materials or devices using same, and method for preparing said polymer The invention relates to a crosslinkable polymer for use in optics and non-linear optics, which comprises at least one chromophore, characterized in that it has, on at least two of its ends, at least one reactive end group of a different chemical type fro... | 12/14/1999 |
| 5955549 | Crosslinked poly(amino acids) and method of preparation Crosslinked poly(amino acids) useful as superabsorbent polymers and an improved process for preparing the crosslinked poly(amino acids) is disclosed. Use of polyaziridine and polyepoxide crosslinkers allows the production of superabsorbent polymers that i... | 09/21/1999 |
| 5925728 | Water-soluble or water-dispersible polyaspartic acid derivatives, their preparation and their use A description is given of water-soluble or water-dispersible polyaspartic acid derivatives, their preparation and their use in cosmetology, especially in hair cosmetology.... | 07/20/1999 |
| 5891968 | Method of making self-doped zwitterionic heterocyclic polymers A self-doped conducting polymer having along its backbone a π-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The c... | 04/06/1999 |
| 5834568 | Forming crosslinked polysuccinimide A process for crosslinking polysuccinimide (PSI) by reacting dry PSI with an N-containing crosslinker.... | 11/10/1998 |
| 5792828 | Dry blending of acrylamidoalkanesulfonic acid monomer with basic compounds A salt of an acrylamidoalkanesulfonic acid can be conveniently prepared by preparing a solid mixture of a normally solid acrylamidoalkanesulfonic acid and a basic compound which is reactive with the acrylamidoalkanesulfonic acid to form the salt. The soli... | 08/11/1998 |
| 5760169 | Self-doped polymers A self-doped conducting polymer having along its backbone a π-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The c... | 06/02/1998 |
| 5670603 | Polymers exhibiting nonlinear optical properties This invention relates to polymers having non-linear optical properties which polymers include fluorene moieties having at least one electron accepting group and at least one electon donating group substituted to different phenyl rings of the fluorene moi... | 09/23/1997 |
| 5663287 | Polyimide and process for producing the same The present invention provide a novel polyimide which is soluble in organic solvents and excels in heat resistance, and to a process for producing the polyimide. The polyimide of the present invention comprises a repeating unit represented by the formula ... | 09/02/1997 |
| 5552516 | Soluble, crosslinked polyaspartates Disclosed are methods of producing high molecular weight, soluble, crosslinked polyaspartates from crosslinked polysuccinimide. In one preferred method aspect, polysuccinimide is first reacted with an organic crosslinking agent, preferably an organic base... | 09/03/1996 |
| 5534611 | Sulfonated and carboxylated aminoethylenephosphonic acid and aminobis (methylene) phosphinic acid Novel sulfonated or carboxylated and phosphonomethylated polymers are prepared by first sulfoalkylating or carboxyalkylating polyamines followed by linking of the polyamines through a bis(methylene)phosphinic acid divalent group to form polymers which are... | 07/09/1996 |
| 5516455 | Polymer dispersed liquid crystals in radiation curable electron-rich alkene-thiol polymer mixtures A polymer dispersed liquid crystal composite prepared from: (1) at least one multifunctional electron-rich alkene that does not undergo appreciable homopolymerization and is selected from the group consisting of (a) vinyl ethers and vinyl sulfides; (b) ke... | 05/14/1996 |
| 5493004 | Process for the preparation of polysuccinimide The invention relates to an improved process for the preparation of polysuccinimide from maleic anhydride and ammonia, characterized in that the starting compounds are brought to reaction in liquid form in a tubular reactor with feed nozzle at temperature... | 02/20/1996 |
| 5488088 | Process for the preparation of copolymers of polysuccinimide Copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition were obtained by reacting maleic acid, an additional polycarboxylic acid and ammonia in a stoichiometric excess, at 120°-350° C., preferably 180°-300° C., to ... | 01/30/1996 |
| 5484860 | Process for the preparation of copolymers of polyaspartic acids Copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition were obtained by reacting maleic acid, an additional polycarboxylic acid and ammonia in a stoichiometric excess, at 120°-350° C., preferably 180°-300° C., to ... | 01/16/1996 |
| 5473048 | Thiol star polymer containing central hub with multiple radiating addition copolymer structures The invention provides a co-polymer having a hub portion from which radiate from 3 to 8 arms where the hub portion is the residue of a tri-functional to octa-functional thiol and each arm is an addition polymer comprising structural units and functional u... | 12/05/1995 |
| 5459232 | Nonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using same A nonlinear optical material composed of a polyimide obtained from a diamine and/or a diacid anhydride or dithioacid anhydride substituted by a portion having a nonlinear optical effect or of molecules having a benzocyclobutene structure substituted at th... | 10/17/1995 |
