Patents Assigned to Nippon Shokubai Company, Ltd.
  • Process for producing &agr;, &bgr;-unsaturated carboxylic acid esters and catalyst for use in such process
    Patent number: 6541656
    Abstract: Economical and efficient processes for producing an &agr;, &bgr;-unsaturated carboxylic acid heterocycle-inserted ester and an &agr;,&bgr;-unsaturated carboxylic acid polyheteroalkylene ester as well as a catalyst suited for use in economically and efficiently producing an &agr;,&bgr;-unsaturated carboxylic acid ester are provided. The invention provides (1) a process for producing an &agr;,&bgr;-unsaturated carboxylic acid ester which comprises reacting an &agr;,&bgr;-unsaturated carboxylic acid ester with a heterocyclic compound, (2) a process for producing an &agr;,&bgr;-unsaturated carboxylic acid ester which comprises reacting an &agr;,&bgr;-unsaturated carboxylic acid with a heterocyclic compound in the presence of a polymerization inhibitor and a metal oxide catalyst, and (3) a catalyst for the production of an &agr;,&bgr;-unsaturated carboxylic acid ester comprising a metal oxide.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: April 1, 2003
    Assignee: Nippon Shokubai Company, Ltd.
    Inventors: Keiji Yurugi, Takafumi Kubo
  • Process for producing alpha , beta-unsaturated carboxylic acid esters and catalyst for use in such process
    Publication number: 20010034300
    Abstract: Economical and efficient processes for producing an &agr;, &bgr;-unsaturated carboxylic acid heterocycle-inserted ester and an &agr;,&bgr;-unsaturated carboxylic acid polyheteroalkylene ester as well as a catalyst suited for use in economically and efficiently producing an &agr;,&bgr;-unsaturated carboxylic acid ester are provided.
    Type: Application
    Filed: February 8, 2001
    Publication date: October 25, 2001
    Applicant: Nippon Shokubai Company Ltd.
    Inventors: Keiji Yurugi, Takafumi Kubo