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| Number | Title | Issue Date |
| 7498401 | Thermoplastic polycarbonate compositions, articles made therefrom and method of manufacture A thermoplastic composition, contains a polycarbonate resin, a polycarbonate-polysiloxane copolymer, an aromatic vinyl copolymer, an impact modifier, and a mineral filler, wherein the composition has least about 40% ductility under multiaxial impact strength test co... | 03/03/2009 |
| 7495066 | Copolycarbonate-polyesters, methods of manufacture, and uses thereof A copolycarbonate-polyester, comprising units of formula wherein at least 60 percent of the total number of R1 groups are divalent aromatic organic radicals and the balance thereof are divalent aliphatic or alicy... | 02/24/2009 |
| 7348394 | Methods for preparing transparent articles from biphenol polycarbonate copolymers A method for producing a transparent article is provided. The method comprises melt transesterifying in the presence of a transesterification catalyst and a monomer mixture to produce a biphenol polycarbonate copolymer product comprising greater than 45 mole percent... | 03/25/2008 |
| 7348439 | 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compounds and methods for making them Compounds and methods for preparing 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidines having a formula of: wherein R1 is independently selected from a group consisting of a hydrocarbyl radical, a nitro radical, ... | 03/25/2008 |
| 7329720 | Methods for increasing the mean particle size of 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidines A method for increasing a mean particle size of a 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidine is provided. The method comprises forming a mixture comprising a feedstream of the 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, and a solvent composition comprisi... | 02/12/2008 |
| 7329718 | Aromatic polycarbonate resin, process for producing the same, optical-part molding material, and optical part The present invention relates to an aromatic polycarbonate resin which comprises repetitive units originating in residual groups of a 2,2-bis(4-hydroxyphenyl)adamantane compound and a 1,3-bis(4-hydroxyphenyl)adamantane compound having a substituent on an aromatic ri... | 02/12/2008 |
| 7309756 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 12/18/2007 |
| 7273919 | High heat polyethersulfone compositions High heat polyethersulfone compositions are provided which possess unexpectedly high glass transition temperatures. The polyethersulfone compositions comprise structural units derived from phthalimide bisphenols such as 3,3-bis(4 -hydroxyphenyl)-N-phenylphthalimide,... | 09/25/2007 |
| 7262235 | Urethane elastomers with improved color stability A golf ball comprising a center, an inner cover layer, and an outer cover layer, wherein the outer cover layer has a color lightness, L*, of 87 or greater following exposure to UV light at an irradiance power of 1.00 W/m2/nm for a period of about 1 hour t... | 08/28/2007 |
| 7218817 | Nonlinear optical guided mode resonance filter Nonlinear optical filters and associated methods. In a representative embodiment, a nonlinear optical filter includes a grating and a dye-doped polymer layer coupled to the grating. The dye-doped polymer layer may include ionic self-assembled layers. An associated m... | 05/15/2007 |
| 7151143 | Blends containing macrocyclic polyester oligomer and high molecular weight polymer The invention provides blends of macrocyclic polyester oligomer (MPO) with high-molecular-weight polymer and polymerization catalyst as friable, one-component, ready-to-polymerize materials with long shelf life. The invention also provides methods for preparation an... | 12/19/2006 |
| 7118806 | Plastic molded product having photochromic characteristic and/or polarizing characteristics A plastic molded article laminated a layer with a photochromic property and/or a layer with a polarization property on at least one side of a base material, said base material being a polycarbonate having a photoelastic constant of 55×10−12 m2 | 10/10/2006 |
| 7112644 | Aromatic polycarbonate resin, process for producing the same, optical-part molding material, and optical part The present invention relates to an aromatic polycarbonate resin which comprises repetitive units originating in residual groups of a 2,2-bis(4-hydroxyphenyl)adamantane compound and a 1,3-bis(4-hydroxyphenyl)adamantane compound having a substituent on an aromatic ri... | 09/26/2006 |
| 7071291 | Isolation, formulation and shaping of macrocyclic oligoesters Processes for isolating, formulating, and shaping macrocyclic oligesters were developed which allow efficient production of macrocyclic oligoesters substantially free from solvent, which may include additives, fillers, and catalysts. ... | 07/04/2006 |
| 7022806 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 04/04/2006 |
| 6994914 | Macrocyclic polyester oligomers and processes for polymerizing the same A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macrocyclic poly... | 02/07/2006 |
| 6984393 | Biodegradable elastomer and method of preparing same This invention relates to thermally crosslinked and photo-crosslinked biodegradable and biocompatible elastomeric polymers. The elastomers can be used for biomedical devices such as needles, stents, catheters, scaffolds for tissue engineering, and implantable drug d... | 01/10/2006 |
| 6962968 | Purification of macrocyclic oligoesters Acid impurities, such as carboxylic acid-terminated polymers, are removed from macrocyclic oligoesters with ion exchange resins, resulting in macrocyclic oligoesters that are substantially free of acid impurities. The ion exchange resins can be regenerated anew and ... | 11/08/2005 |
| 6960626 | Intimate physical mixtures containing macrocyclic polyester oligomer and filler The invention provides intimate physical mixtures of macrocyclic polyester oligomer (MPO) and filler, as well as methods for their preparation and use. Improved dispersion of filler in a polymer matrix is achieved upon polymerization, and larger amounts of filler wi... | 11/01/2005 |
| 6906147 | Catalytic systems This invention relates to single-component and multi-component catalytic systems using aryl titanates. Aryl titanate compounds are useful as catalysts and co-catalysts in single-component and multi-component catalytic systems (e.g., for the polymerization of macrocy... | 06/14/2005 |
| 6864347 | Nonlinear optical chiral compounds and devices incorporating same The present disclosure is in part directed to optical devices for modulating light comprising compounds which spontaneously align. The disclosure is also directed to electro-optic compounds wherein chromophore substituents are chemically bound to a chiral polymer. I... | 03/08/2005 |
| 6831147 | UV-stable polycarbonates optionally mixed with known aromatic polycarbonates, production thereof and use thereof The present invention provides UV-stable polycarbonates, optionally mixed with known aromatic polycarbonates, the production and use thereof, wherein the polycarbonates contain terminal groups of the formula (Ia) ... | 12/14/2004 |
| 6777528 | Process for producing polycarbonate resin A process for producing a polycarbonate resin which comprises performing melt polycondensation of pentacyclopentadecanedimethanol or pentacyclopentadecanedimethanol and diol with carbonic acid diester in the presence of a catalyst containing at least one compound se... | 08/17/2004 |
| 6740728 | Methods for the preparation of polyesters, poly(ester amide)s and poly(ester imide)s and uses of the materials obtained therefrom The present invention relates to methods for the preparation of polyesters, poly(ester amide)s and poly(ester imide)s. The materials obtained by the methods of present invention are useful as fluid separation membranes and as high performance materials. ... | 05/25/2004 |
| 6613156 | Apparatus and method for photoresist stripping A photoresist stripping apparatus and a corresponding method for removing photoresist layers after a patterned polyimide layer is developed. The photoresist-stripping apparatus includes a transporting unit, a stripping unit, a washing unit, a drying unit ... | 09/02/2003 |
| 6590022 | Process for preparing protective-colloid-stabilized vinylaromatic-1,3-diene copolymers A method is provided for producing protective colloid-stabilized vinyl aromatic-1.3-diene-copolymers in the form of their aqueous polymer dispersions or in the form of a powder which can be re-dispersed in water, by emulsion-polymerizing a mixture contain... | 07/08/2003 |
| 6576735 | Polycarbonate resin A polycarbonate resin obtainable by reaction of a carbonic acid ester-forming compound with bisphenols consisting essentially of 9,9-bis(4-hydroxy-3-methylphenyl) fluorene and a bisphenol compound(s) having a polysiloxane skeleton, an intrinsic viscosity ... | 06/10/2003 |
| 6518390 | Precursor of a heat resistant resin, heat resistant resin, insulating film and semiconductor device A precursor of a polybenzoxazole resin which comprises a crosslinking group in a molecule and has a specific structure, a polybenzoxazole resin obtained from the precursor by the condensation reaction and the crosslinking reaction, an insulating film comp... | 02/11/2003 |
| 6376641 | Aromatic-aliphatic copolycarbonate and process for producing the same An aromatic-aliphatic copolycarbonate and a process for producing the same which comprises polycondensation of an aromatic dihydroxy compound, such as 1,1-bis(4-hydroxyphenyl)cyclohexane, tricyclo(5.2.1.02,6)decanedimethanol, and a carbonic aci... | 04/23/2002 |
| 6359103 | Aromatic-aliphatic copolycarbonate and process for producing the same An aromatic-aliphatic copolycarbonate and a process for producing the same which comprises polycondensation of an aromatic dihydroxy compound, such as 1,1-bis(4-hydroxyphenyl)cyclohexane, tricyclo(5.2.1.02,6)decanedimethanol, and a carbonic aci... | 03/19/2002 |
| 6291125 | Terpolymer imaging member and imaging process A terpolymer represented by formula ##STR1## is useful in particular in electrophotographic imaging members.... | 09/18/2001 |
| 6288206 | Chiral polymer compositions exhibiting nonlinear optical properties Chiral organic polymers doped with or appended by nonlinear optical dyes are disclosed. The use of chiral polymers produces a more stable noncentrosymmetric environment for the dye molecules resulting in unexpectedly long relaxation times as compared with... | 09/11/2001 |
| 6177522 | Biostable polycarbonate urethane products Porous and non-porous polycarbonate urethane polymers having a set of properties suitable for long term implantation within the body of a mammal. The polycarbonate foams and elastomers, comprise a polycarbonate material that is resistant to attack by invi... | 01/23/2001 |
| 6080833 | Low-birefringent organic optical component and a spirobiindan polymer A low-birefringent organic optical component comprising a polymer prepared by polymerizing a racemic mixture of the monomer with an asymmetric spiro ring represented by general formula (1) as an essential ingredient; wherein ring A represents a monocyclic... | 06/27/2000 |
| 5910562 | Copolycarbonate resin and resin composition comprising the same A copolycarbonate resin containing a structural unit derived from bisphenol A and a structural unit derived from 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro5,5!undecane or a composition comprising the copolycarbonate resin and an aromati... | 06/08/1999 |
| 5872882 | Non-linear optical polycarbonates The invention relates to non-linear optically active (NLO) polycarbonates and to NLO active waveguides containing these polycarbonates. Waveguides containing these NLO polycarbonates have a low loss of signal, a high glass transition temperature and good ... | 02/16/1999 |
| 5859833 | Optical disk grade copolyestercarbonates derived from hydroxyphenylindanols Copolycarbonates having low intrinsic birefringence comprise structural units derived from hydroxyphenylindanol, from resorcinol, alkylenedioic acid or eugenolsiloxane, and, optionally, from a bisphenol, preferably bisphenol A. The copolycarbonates are us... | 01/12/1999 |
| 5856422 | Optically active poly(aryl)ethers containing optically pure spirobindane and indane moieties Optically active poly(aryl)ether polymers prepared from monomers containing optically pure spirobiindane and/or indane moieties are disclosed. The chiral poly(aryl)ether polymers are of high molecular weight and exhibit high optical rotations. In addition... | 01/05/1999 |
| 5852156 | Polycarbonate composition A polycarbonate composition comprises (a) a substantially chlorine-atom free, aromatic dihydroxy compound/carbonic diester transesterification polycarbonate, and the following components (b), (c) and (d) in specifically, extremely limited amounts, wherein... | 12/22/1998 |
| 5852090 | Norbornene-substituted bisphenol antioxidants The antioxidants of the formulae I and II ##STR1## in which R1 is methyl or H, R2 is H or methyl, R3 is H or C1 -C4 alkyl, R4 is C1 -C5 alkyl, R5 is C1 | 12/22/1998 |
