Patents by Inventor Zhiqiang Song

Zhiqiang Song 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: 8419976
    Abstract: A polyelectrolyte complex composition capable of viscosifying or thickening an aqueous high salt-containing system comprises a mixture of at least one anionic polymer and at least one cationic polymer in an inorganic salt-containing aqueous medium. The anionic polymer and cationic polymer can each be linear and water-soluble, crosslinked and water-soluble, or crosslinked and water-insoluble or swellable.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: April 16, 2013
    Assignee: BASF SE
    Inventors: Zhiqiang Song, Jianwen Mao
  • Publication number: 20120330209
    Abstract: The present application discloses preparations of antimicrobial wound dressings. Strongly binding polymeric dialkyl aminoalkyl(meth)acrylates are used to treat highly absorbent wound dressing materials. The resulting finish is highly antimicrobial effective and non-leachable.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 27, 2012
    Inventors: Zhiqiang Song, Ted Deisenroth
  • Publication number: 20120328683
    Abstract: The present application relates to oligomeric antimicrobial compounds and compositions comprising the same. The oligomers are formed by polymerizing aminoalkyl (meth)acrylate or aminoalkyl (meth)acrylamide monomer(s). In addition to imparting materials with broad spectrum antimicrobial activity, the oligomers can impart antimicrobial activity to substrates such as hair and skin.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 27, 2012
    Inventors: Zhiqiang Song, Ted Deisenroth
  • Patent number: 8287657
    Abstract: A cleaning composition for hard surfaces containing a polymeric compound comprising a main backbone derived from at least the following monomeric components: (I) 20 to 99.9% by weight of at least one cationic monomer according to formula (I) wherein R1 and R2 are, independently of one another, hydrogen or C1-C4 alkyl; R3 and R4 are, independently of one another, hydrogen or alkyl, hydroxyalkyl, carboxyl alkyl, carboxyamide alkyl or alkoxyalkyl having from 1 to 18 carbon atoms; and Y represents an anion, and (II) 0.1 to 80% by weight of a hydrophobic unsaturated nonionic monomer that polymerizes in the presence of an initiator; optionally up to 60% by weight of a water-soluble monomer (III) which is different from either monomer (I) or monomer (II); and optionally reactant (IV), a crosslinking agent in an amount between 0 to 10% by weight, gives improved soil removal properties, antimicrobial and biofilm suppression properties as well as resistance to resoiling and staining.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: October 16, 2012
    Assignee: BASF SE
    Inventors: Zhiqiang Song, Bingham Scott Jaynes, Jianwen Mao, Andrea Preuss
  • Patent number: 8148318
    Abstract: The present invention relates to home or fabric care compositions comprising certain dye-polymer complexes. Additionally, methods for coloration of home or fabric care compositions using said dye-polymer complexes are disclosed.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: April 3, 2012
    Assignee: BASF SE
    Inventors: Zhiqiang Song, Bingham Scott Jaynes, Joseph Anthony Lupia, Xian-Zhi Zhou
  • Patent number: 8147814
    Abstract: The present invention relates to personal care compositions comprising certain dye-polymer complexes. Additionally, methods for coloration of personal care compositions using said dye-polymer complexes are disclosed.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: April 3, 2012
    Assignee: BASF SE
    Inventors: Zhiqiang Song, Bingham Scott Jaynes, Joseph Anthony Lupia, Xian-Zhi Zhou
  • Publication number: 20110244254
    Abstract: The present application is directed to anticorrosion coatings on metal substrates. In particular the coatings are especially suitable for metal containing medical devices and implants. The anticorrosion coatings comprise a combination of anionic and cationic polyelectrolytes which when applied to a metal substrate form a complex. In addition to cationic and anionic functionality, the polyelectrolytes also possess additional functionality which allows for further reacting to form covalent bonds between the anionic and cationic polyelectrolytes. The formed complex once applied to the metal substrate surface provides improved corrosion resistance, protection from metal ion release and improved mechanical properties.
    Type: Application
    Filed: March 15, 2011
    Publication date: October 6, 2011
    Inventors: Zhiqiang Song, Ted Deisenroth
  • Publication number: 20110244256
    Abstract: Incorporating antimicrobial metals, such as silver salts, into an anticorrosion coating provides both excellent antimicrobial protection and surprisingly improves the anti corrosion activity as well, proving anti corrosion coatings effective as thin films and well suited for coating medical devices. Suitable binder polymers for the coating include but not limited to polyelectrolytes containing charged and/or potentially chargeable groups and polymers containing hydrophilic entities.
    Type: Application
    Filed: March 15, 2011
    Publication date: October 6, 2011
    Inventors: Zhiqiang Song, Ted Deisenroth, Richard Thomas, Jacqueline Lau
  • Patent number: 7863388
    Abstract: Water-soluble functionalized cationic copolymers obtainable by a process which comprises reacting a cationic base polymer which contains amino groups with at least one functional compound reactive to at least a part of the amino groups on the base polymer, are useful in personal care and cosmetic formulations.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: January 4, 2011
    Assignee: BASF SE
    Inventors: Zhiqiang Song, John Jennings, Jianwen Mao
  • Publication number: 20100139879
    Abstract: The invention is directed to a method of making ultra high molecular weight diallyldialkyl ammonium salt homopolymers, compositions thereof and use of compositions as a fixative in papermaking.
    Type: Application
    Filed: February 18, 2010
    Publication date: June 10, 2010
    Inventors: ZHIQIANG SONG, George William Schriver, Holger Reinicke
  • Publication number: 20100108955
    Abstract: A polyelectrolyte complex composition capable of viscosifying or thickening an aqueous high salt-containing system comprises a mixture of at least one anionic polymer and at least one cationic polymer in an inorganic salt-containing aqueous medium. The anionic polymer and cationic polymer can each be linear and water-soluble, crosslinked and water-soluble, or crosslinked and water-insoluble or swellable.
    Type: Application
    Filed: July 12, 2006
    Publication date: May 6, 2010
    Inventors: Zhiqiang Song, Jianwen Mao
  • Patent number: 7691934
    Abstract: The invention is directed to a method of making ultra high molecular weight diallyldialkyl ammonium salt homopolymers, compositions thereof and use of compositions as a fixative in papermaking.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: April 6, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Zhiqiang Song, George William Schriver, Holger Reinicke
  • Patent number: 7659354
    Abstract: The present invention is directed to polymeric compounds comprising a main backbone derived from at least the following monomeric components: (I) 20 to 99.9% by weight, preferably 50% to 99% by weight, of at least one cationic monomer according to formula (I), and (II) 0.1 to 80% by weight of a hydrophobic unsaturated nonionic monomer that polymerizes in the presence of an initiator, optionally a water-soluble monomer (III) different from either monomer (I) and monomer (II), and optionally a crosslinking agent (IV). Said compounds are particularly useful to overcome the problem of dye bleeding and/or dye transfer in laundry processes.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: February 9, 2010
    Assignee: Ciba Specialty Chemiclas Corporation
    Inventors: Zhiqiang Song, Jianwen Mao, Hauke Rohwer, Ullrich Menge
  • Publication number: 20090324964
    Abstract: The present invention is directed to the use of hydrophilic terpolymers in hard surface cleaners which provide easier cleaning for surface soils such as hard water stains, soap scum, limescale, mud, food, toilet stains, oil, grease, particulates and the like as well as anti-fog effects on hard surfaces such as glass, mirrors, ceramic and plastic by causing water droplets to coalesce into a film.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 31, 2009
    Inventors: Bingham Scott Jaynes, Zhiqiang Song, Xian-Zhi Zhou, Yingxia He
  • Publication number: 20090117071
    Abstract: A cleaning composition for hard surfaces containing a polymeric compound comprising a main backbone derived from at least the following monomeric components: (I) 20 to 99.9% by weight of at least one cationic monomer according to formula (I) wherein R1 and R2 are, independently of one another, hydrogen or C1-C4 alkyl; R3 and R4 are, independently of one another, hydrogen or alkyl, hydroxyalkyl, carboxyl alkyl, carboxyamide alkyl or alkoxyalkyl having from 1 to 18 carbon atoms; and Y represents an anion, and (II) 0.1 to 80% by weight of a hydrophobic unsaturated nonionic monomer that polymerizes in the presence of an initiator; optionally up to 60% by weight of a water-soluble monomer (III) which is different from either monomer (I) or monomer (II); and optionally reactant (IV), a crosslinking agent in an amount between 0 to 10% by weight, gives improved soil removal properties, antimicrobial and biofilm suppression properties as well as resistance to resoiling and staining.
    Type: Application
    Filed: November 28, 2005
    Publication date: May 7, 2009
    Inventors: Zhiqiang Song, Bingham Scott Jaynes, Jianwen Mao, Andrea Preuss
  • Publication number: 20090060849
    Abstract: The present invention relates to personal care compositions comprising certain dye-polymer complexes. Additionally, methods for coloration of personal care compositions using said dye-polymer complexes are disclosed.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 5, 2009
    Inventors: Zhiqiang Song, Bingham Scott Jaynes, Joseph Anthony Lupia, Xian-Zhi Zhou
  • Publication number: 20090062171
    Abstract: The present invention relates to home or fabric care compositions comprising certain dye-polymer complexes. Additionally, methods for coloration of home or fabric care compositions using said dye-polymer complexes are disclosed.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 5, 2009
    Inventors: Zhiqiang Song, Bingham Scott Jaynes, Joseph Anthony Lupia, Xian-Zhi Zhou
  • Patent number: 7425597
    Abstract: The molecular weight of cationic polymers, such as diallyldialkyl ammonium chloride, can be increased by controlled addition of a water-soluble radical initiator at an elevated reaction temperature with agitation to prepare high molecular weight, crosslinked, water-soluble cationic polymers.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: September 16, 2008
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventor: Zhiqiang Song
  • Patent number: 7407561
    Abstract: The present invention relates to a method for controlling pitch and stickies deposit in a pulp and papermaking process using crosslinked cationic polymers made by controlled addition of a water soluble radical initiator at reaction temperature with agitation for chain extension and crosslinking.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: August 5, 2008
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventors: Zhiqiang Song, Philip Anson Ford
  • Publication number: 20080138307
    Abstract: High molecular weight, crosslinked, water-soluble cationic polymers, such as poly(diallyldialkyl ammonium) halides, give superior performance to conventional polymers in hair care applications, particularly as conditioning agents for hair together with or after a beautification treatment such as relaxing, waving, perming, coloring, straightening or bleaching.
    Type: Application
    Filed: January 18, 2006
    Publication date: June 12, 2008
    Inventors: Emily Crisp Bazemore, Rhonda F. Tsotsoros, Zhiqiang Song, Jianwen Mao