Patents by Inventor Tienkuan Lim

Tienkuan Lim 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).

  • Thermoplastic polyurethanes composition and preparation processes thereof
    Patent number: 9605131
    Abstract: This invention is directed to a thermoplastic polyurethanes composition comprising polyether-based thermoplastic polyurethane and 1,2-cyclohexane dicarboxylic acid ester and preparation processes thereof. The thermoplastic polyurethane composition has a good mold release behavior in injection molding without undesirably significant shrinkage and surface blooming of final product.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: March 28, 2017
    Assignee: BASF SE
    Inventors: Wei Zhuang, Bin Chen, Akira Nomura, Etsuhiro Yamamoto, Jianqiang Qu, Michi Kondo, Tienkuan Lim, Frank Schaefer
  • SOFT THERMOPLASTIC POLYURETHANE ELASTOMERS AND PROCESS FOR THEIR PREPARATION
    Publication number: 20160122465
    Abstract: The present invention discloses a thermoplastic polyurethane comprising substantially no plasticizers and having a Shore A hardness of 60 or less, which is prepared by a one-step polymerization of i) linear polyol, ii) organic diisocyanate and iii) glycol chain extender mainly comprising ethylene glycol and/or 1,3-propanediol; wherein the linear polyol (i) has a number average molecular weight within the range of from 1.5×103 g/mol to 5.0×103 g/mol. The thermoplastic polyurethane of the present invention can be easily produced by conventional production methods, and the thermoplastic polyurethane thus produced can be molded to articles in practicable processing cycles. Moreover, the thermoplastic polyurethane articles have low shrinkage, have good low-temperature properties and good mechanical properties, and do not harden substantially at low temperature.
    Type: Application
    Filed: May 28, 2014
    Publication date: May 5, 2016
    Applicant: BASF SE
    Inventors: DeHui YIN, Bin-Eric CHEN, Akira NOMURA, Tienkuan LIM
  • THERMOPLASTIC POLYURETHANES COMPOSITION AND PREPARATION PROCESSES THEREOF
    Publication number: 20130267639
    Abstract: This invention is directed to a thermoplastic polyurethanes composition comprising polyether-based thermoplastic polyurethane and 1,2-cyclohexane dicarboxylic acid ester and preparation processes thereof. The thermoplastic polyurethane composition has a good mold release behavior in injection molding without undesirably significant shrinkage and surface blooming of final product.
    Type: Application
    Filed: April 5, 2013
    Publication date: October 10, 2013
    Applicant: BASF SE
    Inventors: Wei ZHUANG, Bin Chen, Akira Nomura, Etsuhiro Yamamoto, Jianqiang Qu, Michi Kondo, Tienkuan Lim, Frank Schaefer