Patents by Inventor Tsai-Lung Chen

Tsai-Lung Chen 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).

  • Water dispersible polyisocyanate composition and its uses
    Patent number: 7772307
    Abstract: The present invention relates to a water dispersible polyisocyanate composition bearing urea comprising (a) an aliphatic polyisocyanate or a mixture of aliphatic polyisocyanates or a mixture of aliphatic polyisocyanates with other polyisocyanates; and (b) a reaction product of component (a) with component (c) a polyoxyalkylene amine or a mixture of a polyoxyalkylene amine and a polyoxyalkylene alcohol. The present invention also relates to a water dispersible polyisocyanate composition bearing urea and urea derivatives which is obtained by heating the above composition bearing urea for conducting a subsequent reaction, to increase the numbers of isocyanate functional groups contained in said composition, wherein the urea derivatives include biuret, triuret and tetrauret, and most of them are biuret.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: August 10, 2010
    Assignee: Great Eastern Resins Industrial Co., Ltd.
    Inventors: Shenghong A. Dai, Chinghung Chen, Will Yang, Tsai-Lung Chen, Chien-Wen Chen
  • Water dispersible polyisocyanate composition and its uses
    Publication number: 20080221249
    Abstract: The present invention relates to a water dispersible polyisocyanate composition bearing urea comprising (a) an aliphatic polyisocyanate or a mixture of aliphatic polyisocyanates or a mixture of aliphatic polyisocyanates with other polyisocyanates; and (b) a reaction product of component (a) with component (c) a polyoxyalkylene amine or a mixture of a polyoxyalkylene amine and a polyoxyalkylene alcohol. The present invention also relates to a water dispersible polyisocyanate composition bearing urea and urea derivatives which is obtained by heating the above composition bearing urea for conducting a subsequent reaction, to increase the numbers of isocyanate functional groups contained in said composition, wherein the urea derivatives include biuret, triuret and tetrauret, and most of them are biuret.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 11, 2008
    Inventors: Shenghong A. Dai, Chinghung Chen, Will Yang, Tsai-Lung Chen, Chien-Wen Chen
  • Water dispersible polyisocyanate composition bearing urea and/or biuret and its uses
    Publication number: 20050049358
    Abstract: The present invention relates to a water dispersible polyisocyanate composition bearing urea comprising (a) an aliphatic polyisocyanate or a mixture of aliphatic polyisocyanates or a mixture of aliphatic polyisocyanates with other polyisocyanates; and (b) a reaction product of component (a) with component (c) a polyether amine or a mixture of a polyether amine and a polyether alcohol. The present invention also relates to a water dispersible polyisocyanate composition bearing urea and urea derivatives which is obtained by heating the above composition bearing urea for conducting a subsequent reaction, to increase the numbers of isocyanate functional groups contained in said composition, wherein the urea derivatives include biuret, triuret and tetrauret, and most of them are biuret.
    Type: Application
    Filed: December 1, 2003
    Publication date: March 3, 2005
    Inventors: Shenghong Dai, Chinghung Chen, Will Yang, Tsai-Lung Chen
  • Water dispersible polyisocyanate composition and its uses
    Patent number: 6838516
    Abstract: The present invention relates to a water dispersible polyisocyanate composition comprising (a) an aliphatic polyisocyanate or a mixture of aliphatic polyisocyanates or a mixture of aliphatic polyisocyanates with other polyisocyanates; and (b) a reaction product of component (a) with a component selected from the group consisting of: (ii) a polyether diol or triol or a mixture thereof wherein a weight ratio of ethylene oxide (EO) to propylene oxide (PO) of the polyether diol and triol is greater than about 60:40, and the polyether diol has a molecular weight of about 300 to 1600 g/mole, and the polyether triol has a molecular weight of about 450 to 2400 g/mole; and (ii) a mixture of polyether monol and polyether polyol, wherein the polyether polyol is selected from the group consisting of polyether diol, triol and a mixture thereof wherein a weight ratio of EO to PO of the polyether monol, diol and triol is greater than about 60:40, and the polyether diol and triol have the molecular weights as defined abo
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: January 4, 2005
    Assignee: Great Eastern Resins Industrial Co., Ltd.
    Inventors: Shenghong A. Dai, Jui-Ming Chang, Tsai-Lung Chen, Will Yang
  • Water dispersible polyisocyanate composition and its uses
    Publication number: 20040019160
    Abstract: The present invention relates to a water dispersible polyisocyanate composition comprising
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Applicant: GREAT EASTERN RESINS INDUSTRIAL CO., LTD.
    Inventors: Shenghong A. Dai, Jui-Ming Chang, Tsai-Lung Chen, Will Yang