Patents by Inventor Qun Sun

Qun Sun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8551192
    Abstract: The present invention relates to a novel method for compatibilizing, i.e. improving miscibility of, otherwise immiscible organic materials highly useful in the fibers industry, as well as the compatibilized product of the method. These compatibilized products are stable in the liquid phase at temperatures ranging from about 40° C. to about 200° C. The method involves use of a glycol derived from polymerization of alkylene oxide and tetrahydrofuran, the alkylene oxide having from 2 to 4 carbon atoms, i.e. poly(tetramethylene-co-alkyleneether) glycol, in the mixture.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: October 8, 2013
    Assignee: Invista North America S.A.R.L.
    Inventors: Qun Sun, Edwin L. McInnis
  • Patent number: 8536177
    Abstract: A compound of formula: wherein Ar1, A, R3, x, and m are as disclosed herein and Ar2 is a benzothiazolyl, benzooxazolyl, or benzoimidazolyl group or a pharmaceutically acceptable salt thereof (a “Benzoazolylpiperazine Compound”), compositions comprising a Benzoazolylpiperazine Compound, and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Benzoazolylpiperazine Compound are disclosed.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: September 17, 2013
    Assignee: Purdue Pharma L.P.
    Inventors: Qun Sun, Laykea Tafesse, Sam Victory
  • Publication number: 20130197143
    Abstract: The present invention relates to a novel polyurethane, copolyether ester or copolyether amide elastomer composition comprising a glycol derived from random copolymerization of alkylene oxide and tetrahydrofuran (THF), the alkylene oxide having from 2 to 4 carbon atoms, i.e., poly(tetramethylene-co-alkyleneether)glycol.
    Type: Application
    Filed: December 11, 2009
    Publication date: August 1, 2013
    Applicant: INVISTA North America S.à.r.l
    Inventors: Qun Sun, Edwin L. McInnis
  • Patent number: 8478123
    Abstract: An array camera may be formed from an array of lenses, an array of corresponding apertures, and an array of corresponding image sensors. The array of apertures may be configured so that some image sensors receive light through apertures of different size than other image sensors. Providing apertures of smaller size increases the F/# of an array camera and increases the depth-of-field in a captured image. The array of image sensors may include a near-infrared image sensor. Providing an image sensor array with a near-infrared image sensor may enhance depth information in captured images or increase night vision capabilities of an array camera. Combining an array of image sensors that includes a near-infrared sensor with an array of apertures having different aperture diameters may allow increased depth-of-field imaging, enhanced extraction of depth information from an image, improved night vision, enhanced image clarity or other improvements.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: July 2, 2013
    Assignee: Aptina Imaging Corporation
    Inventors: Dongqing Cao, Qun Sun, Juanqing Chen
  • Patent number: 8450450
    Abstract: The present invention relates to an improved process for manufacturing polyether and copolyether glycols by polymerization of a reaction mixture comprising at least one tetrahydrofuran or at least one tetrahydrofuran and at least one other cyclic ether, for example, an alkylene oxide, in the presence of a particular perfluorosulfonic acid resin catalyst comprising a copolymer of tetrafluoroethylene (TFE) or chlorotrifluoroethylene (CTFE) and a monomer of the formula CF2?CF—O—CF2—CF2—SO2F.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: May 28, 2013
    Assignee: Invista North America S.A R.L.
    Inventor: Qun Sun
  • Publication number: 20130046116
    Abstract: The present invention relates to an improved, fully-integrated continuous process of enhanced process operability for manufacturing copolyether glycols having enhanced physical properties by polymerization of a reaction mixture comprising tetrahydrofuran and at least one alkylene oxide in the presence of an acid catalyst and at least one compound containing reactive hydrogen atoms. The copolyether glycols manufactured by the present process have enhanced physical properties of increased alkylene oxide incorporation, average molecular weight and polydispersity, as well as reduced crystallinity, color, oligomeric cyclic ether content, and linear oligomer having an average molecular weight of up to about 400 dalton content.
    Type: Application
    Filed: January 12, 2010
    Publication date: February 21, 2013
    Applicant: INVISTA North America S.a r.l.
    Inventors: Robert B. Osborne, Qun Sun, Yanhui Sun, Gregg M. Sisler, Roy N. Eissmann, Robert D. Orlandi
  • Patent number: 8372946
    Abstract: The present invention relates to a continuous process for manufacturing copolyether glycols with high incorporation of alkylene oxide by polymerization of tetrahydrofuran and at least one alkylene oxide in the presence of an acid catalyst, at least one compound containing reactive hydrogen atoms, and a specific diluent or solvent. More particularly, the invention relates to a diluent or solvent-assisted continuous process for manufacturing copolyether glycols with high incorporation of alkylene oxide.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: February 12, 2013
    Assignee: Invista North America S.A R.L.
    Inventors: Qun Sun, Robert D. Orlandi
  • Publication number: 20130033585
    Abstract: An apparatus and a method for color compensation in multi-view video is provided. Video sequences corresponding to a common scene of interest are captured and processed using the master and slave channels respectively. A compensation gain is calculated based on a set of global color ratio statistics obtained from the master and slave channels. The compensation gain is applied to the slave channel. An initial master color correction matrix is combined with a master color matching matrix to obtain a final master color correction matrix. The initial slave color correction matrix is combined with a slave color matching matrix to obtain a final slave color correction matrix. The master and gain-compensated slave channels are color-compensated by applying the final master and final slave color correction matrices to the master and gain-compensated slave channels, respectively.
    Type: Application
    Filed: March 6, 2012
    Publication date: February 7, 2013
    Inventors: DONG LI, Qun Sun
  • Patent number: 8357899
    Abstract: An imaging system may include a dual-band image sensor that captures visible and near-infrared light and image processing circuitry that performs color corrections on images captured by the dual-band image sensor. The image processing circuitry may analyze each captured image in two different color spaces to determine what type of light source lit each image. The image processing circuitry may determine whether an image was lit by a light source having a relatively high proportion of near-infrared emissions such as an incandescent light, a light source having a relatively low proportion of near-infrared emissions such as a fluorescent light, or a light source having an intermediate proportion of near-infrared emissions such as sunlight or other blackbody radiator. After determining what type of light source lit an image, the image processing circuitry may adjust color balances in that image using a color correction matrix associated with that type of light source.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: January 22, 2013
    Assignee: Aptina Imaging Corporation
    Inventors: Changmeng Liu, Yingjun Bai, Qun Sun
  • Publication number: 20130012541
    Abstract: A compound of formula: wherein Ar1, Ar2, V, X, R3, R4, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Cyclo(hetero)alkenyl Compound”); compositions comprising an effective amount of a Cyclo(hetero)alkenyl Compound; and methods for treating or preventing, e.g., pain, UI, an ulcer, IBD, or IBS in an animal, comprising administering to an animal in need thereof an effective amount of a Cyclo(hetero)alkenyl Compound are disclosed herein.
    Type: Application
    Filed: June 18, 2012
    Publication date: January 10, 2013
    Applicant: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Qun Sun, Laykea Tafesse
  • Patent number: 8349842
    Abstract: Piperidine Compounds; compositions comprising a Piperidine Compound; and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Piperidine Compound are disclosed. In one embodiment, the Piperidine Compound has the formula: and pharmaceutically acceptable salts thereof, wherein Ar1, Ar2, X, R3, R4, and m are as disclosed herein.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: January 8, 2013
    Assignee: Purdue Pharma, L.P.
    Inventors: Qun Sun, Kate Xin Wen, Xiaoming Zhou
  • Publication number: 20120302722
    Abstract: The present invention relates to a new thermoplastic copolyether ester elastomer composition comprising a soft segment and a hard segment. The soft segment of the copolyether ester elastomer composition is derived from a random poly(oxyethylene-co-oxytetramethylene ether)glycol and the hard segment is composed of short chain polyester. The present invention also relates to a method for manufacturing the new copolyether ester elastomer composition, and products comprising same.
    Type: Application
    Filed: May 6, 2010
    Publication date: November 29, 2012
    Applicant: INVISTA North America S.a.r.l
    Inventors: Qun Sun, Edwin L. McInnis
  • Publication number: 20120259090
    Abstract: The present invention provides a highly efficient process for manufacturing copolyether glycol having a mean molecular weight of from about 650 to about 5000 dalton by polymerization of tetrahydrofuran and at least one alkylene oxide in the presence of an acid catalyst and at least one compound containing reactive hydrogen atoms. More particularly, the invention relates to a process for manufacturing copolyether glycol which comprises recycle to the polymerization reaction step of at least a portion of the oligomeric cyclic ether which is co-produced with the copolyether glycol, said process exhibiting an Space Time Yield value of greater than about 0.9.
    Type: Application
    Filed: September 28, 2011
    Publication date: October 11, 2012
    Applicant: INVISTA North America S.a r.l.
    Inventors: Qun SUN, Gary L. KISER, Robert D. ORLANDI
  • Patent number: 8252815
    Abstract: A compound of the formula (I), (II), (III) or (IV) wherein Z, A, B, C, R, R1, R2, Q, and n are as described herein.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: August 28, 2012
    Assignee: Purdue Pharma L.P.
    Inventors: Qun Sun, R. Richard Goehring, Donald Kyle, Zhengming Chen, Sam Victory, John Whitehead
  • Publication number: 20120189293
    Abstract: An array camera may be formed from an array of lenses, an array of corresponding apertures, and an array of corresponding image sensors. The array of apertures may be configured so that some image sensors receive light through apertures of different size than other image sensors. Providing apertures of smaller size increases the F/# of an array camera and increases the depth-of-field in a captured image. The array of image sensors may include a near-infrared image sensor. Providing an image sensor array with a near-infrared image sensor may enhance depth information in captured images or increase night vision capabilities of an array camera. Combining an array of image sensors that includes a near-infrared sensor with an array of apertures having different aperture diameters may allow increased depth-of-field imaging, enhanced extraction of depth information from an image, improved night vision, enhanced image clarity or other improvements.
    Type: Application
    Filed: May 16, 2011
    Publication date: July 26, 2012
    Inventors: Dongqing Cao, Qun Sun, Juanqing Chen
  • Patent number: 8227467
    Abstract: A compound of formula: wherein Ar1, Ar2, V, X, R3, R4, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Cyclo(hetero)alkenyl Compound”); compositions comprising an effective amount of a Cyclo(hetero)alkenyl Compound; and methods for treating or preventing, e.g., pain, UI, an ulcer, IBD, or IBS in an animal, comprising administering to an animal in need thereof an effective amount of a Cyclo(hetero)alkenyl Compound are disclosed herein.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: July 24, 2012
    Assignee: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Qun Sun, Laykea Tafesse
  • Publication number: 20120184509
    Abstract: A kind of new compounds, and their pharmaceutically acceptable salts, and hydrates are disclosed. The pharmaceutical composition thereof is also provided. And also are the medical uses of the compounds, pharmaceutically acceptable salts, hydrates and the pharmaceutical composition for treating the TRPV1-mediate diseases.
    Type: Application
    Filed: September 27, 2010
    Publication date: July 19, 2012
    Inventor: Qun Sun
  • Patent number: 8178560
    Abstract: A compound of formula: where Ar1, Ar2, X, R3, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Cycloheteroalkenyl Compound”); compositions comprising an effective amount of a Cycloheteroalkenyl Compound; and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Cycloheteroalkenyl Compound are disclosed herein.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: May 15, 2012
    Assignee: Purdue Pharma L.P.
    Inventors: Qun Sun, Xin Wen
  • Publication number: 20120095049
    Abstract: A compound of the formula (I), (II), (III) or (IV) wherein Z, A, B, C, R, R1, R2, Q, and n are as described herein.
    Type: Application
    Filed: March 18, 2011
    Publication date: April 19, 2012
    Applicant: Purdue Pharma L.P.
    Inventors: Qun SUN, R. Richard Goehring, Donald Kyle, Zhengming Chen, Sam Victory, John Whitehead
  • Patent number: 8129388
    Abstract: The present invention discloses compounds of formula: where Ar1, Ar2, X, R3, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Phenylene Compound”); compositions comprising an effective amount of a Phenylene Compound; and methods for treating pain and other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Phenylene Compound.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: March 6, 2012
    Assignee: Purde Pharma L.P.
    Inventor: Qun Sun