Patents by Inventor Yew Chong LAI

Yew Chong LAI 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).

  • SULPHUR-CONTAINING POLYESTER
    Publication number: 20220025291
    Abstract: The present invention relates to a sulphur-containing polyester capable of being obtained by a process comprising esterification reactions between a polyol and a carboxylic acid and a thiolactic acid, or by a process comprising an esterification reaction between a partially esterified polyol and a thiolactic acid. It also concerns its use as a multiproperty additive, and compositions comprising it.
    Type: Application
    Filed: December 3, 2019
    Publication date: January 27, 2022
    Inventors: Karima ZITOUNI, Kim-Foong CHONG, Yew Chong LAI