Patents by Inventor Chao-Po Hsu

Chao-Po Hsu 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: 8951330
    Abstract: The present invention provides a method for producing silver nanoparticles by employing ethanolamine. The method of this invention can be easily operated and no organic solvent is required. Ethanolamine first reacts with copolymers of poly(styrene-co-maleic anhydride) (abbreviated as SMA) to generate polymeric polymers. The polymeric polymers then reduce silver ions to silver atoms which are dispersed in the form of silver nanoparticles. Functional groups of the polymeric polymers can chelate with silver ions and be stably compatible with water or organic solvents, whereby the silver nanoparticles can be stably dispersed without aggregation and the produced silver nanoparticles.
    Type: Grant
    Filed: July 14, 2012
    Date of Patent: February 10, 2015
    Assignee: National Taiwan University
    Inventors: Jiang-Jen Lin, Wei-Cheng Tsai, Chao-Po Hsu, Wei-Li Lin, Yueh-Hsien Wu
  • Patent number: 8491699
    Abstract: The present invention provides a method for producing silver nanoparticles by employing ethanolamine. The method of this invention can be easily operated and no organic solvent is required. Ethanolamine first reacts with a mixture of poly(oxyalkylene)-amine/epoxy or copolymers of poly(styrene-co-maleic anhydride) (abbreviated as SMA) to generate polymeric polymers. The polymeric polymers then reduce silver ions to silver atoms which are dispersed in the form of silver nanoparticles. Functional groups of the polymeric polymers can chelate with silver ions and be stably compatible with water or organic solvents, whereby the silver nanoparticles can be stably dispersed without aggregation and the produced silver nanoparticles.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: July 23, 2013
    Assignee: National Taiwan University
    Inventors: Jiang-Jen Lin, Wei-Cheng Tsai, Chao-Po Hsu, Wei-Li Lin, Yueh-Hsien Wu
  • Publication number: 20130062577
    Abstract: A carbon nanotube suspension includes a plurality of carbon nanotubes and a block copolymer dispersant which are evenly distributed in a solvent, wherein the block copolymer includes a hydrophobic block and a functional group block, such that the carbon nanotubes react with the functional group block to form covalent bonds directly without undergoing chemical modification. The carbon nanotube suspension is effective in preparing a superhydrophobic film without undergoing chemical modification or the presence of a fluorine-containing compound. The superhydrophobic film thus prepared is of a tough stable structure and remains superhydrophobic when subjected to lengthy immersion treatment, exposure to a strong acid-base environment, or physical abrasion and polishing.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 14, 2013
    Inventors: JIANG-JEN LIN, CHAO-PO HSU
  • Publication number: 20130035445
    Abstract: A polymeric polymer is prepared from poly(oxyethylene)-amine and a linker, for example, poly(styrene-co-maleic anhydride) (SMA) or dianhydride. The polymeric polymer can chelate silver ions and reduce them to silver atoms which are dispersed as nanoparticles. No additional reducing agent is needed and more than 30% of solid content of the nanoparticles solution can be achieved without aggregation. The prepared silver nanoparticles are both hydrophilic and hydrophobic and therefore are compatible with polymers.
    Type: Application
    Filed: September 15, 2012
    Publication date: February 7, 2013
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Jiang-Jen Lin, Wei-Cheng Tsai, Rui-Xuan Dong, Wei-Li Lin, Chao-Po Hsu
  • Patent number: 8333822
    Abstract: A polymeric polymer containing poly(oxyethylene)-amine and its application to preparation of silver nanoparticles. The polymeric polymer is prepared from poly(oxyethylene)-amine and a linker, for example, poly(styrene-co-maleic anhydride) (SMA) or dianhydride. The polymeric polymer can chelate silver ions and reduce them to silver atoms which are dispersed as nanoparticles. No additional reducing agent is needed and more than 30% of solid content of the nanoparticles solution can be achieved without aggregation. The prepared silver nanoparticles are both hydrophilic and hydrophobic and therefore are compatible with polymers.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: December 18, 2012
    Assignee: National Taiwan University
    Inventors: Jiang-Jen Lin, Wei-Cheng Tsai, Rui-Xuan Dong, Wei-Li Lin, Chao-Po Hsu
  • Publication number: 20120279352
    Abstract: The present invention provides a method for producing silver nanoparticles by employing ethanolamine. The method of this invention can be easily operated and no organic solvent is required. Ethanolamine first reacts with copolymers of poly(styrene-co-maleic anhydride) (abbreviated as SMA) to generate polymeric polymers. The polymeric polymers then reduce silver ions to silver atoms which are dispersed in the form of silver nanoparticles. Functional groups of the polymeric polymers can chelate with silver ions and be stably compatible with water or organic solvents, whereby the silver nanoparticles can be stably dispersed without aggregation and the produced silver nanoparticles.
    Type: Application
    Filed: July 14, 2012
    Publication date: November 8, 2012
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Jiang-Jen Lin, Wei-Cheng Tsai, Chao-Po Hsu, Wei-Li Lin, Yueh-Hsien Wu
  • Publication number: 20110024699
    Abstract: A polymeric polymer containing poly(oxyethylene)-amine and its application to preparation of silver nanoparticles. The polymeric polymer is prepared from poly(oxyethylene)-amine and a linker, for example, poly(styrene-co-maleic anhydride) (SMA) or dianhydride. The polymeric polymer can chelate silver ions and reduce them to silver atoms which are dispersed as nanoparticles. No additional reducing agent is needed and more than 30% of solid content of the nanoparticles solution can be achieved without aggregation. The prepared silver nanoparticles are both hydrophilic and hydrophobic and therefore are compatible with polymers.
    Type: Application
    Filed: July 26, 2010
    Publication date: February 3, 2011
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Jiang-Jen Lin, Wei-Cheng Tsai, Rui-Xuan Dong, Wei-Li Lin, Chao-Po Hsu
  • Publication number: 20110011208
    Abstract: The present invention provides a method for producing silver nanoparticles by employing ethanolamine. The method of this invention can be easily operated and no organic solvent is required. Ethanolamine first reacts with a mixture of poly(oxyalkylene)-amine/epoxy or copolymers of poly(styrene-co-maleic anhydride) (abbreviated as SMA) to generate polymeric polymers. The polymeric polymers then reduce silver ions to silver atoms which are dispersed in the form of silver nanoparticles. Functional groups of the polymeric polymers can chelate with silver ions and be stably compatible with water or organic solvents, whereby the silver nanoparticles can be stably dispersed without aggregation and the produced silver nanoparticles.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 20, 2011
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Jiang-Jen Lin, Wei-Cheng Tsai, Chao-Po Hsu, Wei-Li Lin, Yueh-Hsien Wu