Patents by Inventor Stefan Siffrin

Stefan Siffrin 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).

  • Resin composition used for peelable coating and compounding process thereof
    Patent number: 8946328
    Abstract: The present invention provides a resin composition used for peelable coating and compounding process thereof. The composition includes the following components: (a) 100 parts by weight of film-forming resin containing at least one acrylic resin; (b) 0.1-40 parts by weight of at least one separating agent, which is polypropylene glycol or glycerin fatty acid ester or their mixtures; and (c) 40-60 parts by weight of at least one solvent. The peelable coating formed from the resin composition has excellent water resistance and excellent peeling performance even under the condition of prolonging storage period.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: February 3, 2015
    Assignee: Shenzhen Yong Feng Yuan Industry Co., Ltd.
    Inventors: Quanhui Liu, Stefan Siffrin, Quanyao Liu
  • RESIN COMPOSITION USED FOR PEELABLE COATING AND COMPOUNDING PROCESS THEREOF
    Publication number: 20120178862
    Abstract: The present invention provides a resin composition used for peelable coating and compounding process thereof. The composition includes the following components: (a) 100 parts by weight of film-forming resin containing at least one acrylic resin; (b) 0.1-40 parts by weight of at least one separating agent, which is polypropylene glycol or glycerin fatty acid ester or their mixtures; and (c) 40-60 parts by weight of at least one solvent. The peelable coating formed from the resin composition has excellent water resistance and excellent peeling performance even under the condition of prolonging storage period.
    Type: Application
    Filed: December 28, 2009
    Publication date: July 12, 2012
    Inventors: Quanhui Liu, Stefan Siffrin, Quanyao Liu