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Process for preparing methacryl amidemethacrylic acid mixtures

Patent
US-3558695-A
Inventor

SUDO MAKOTO

YAMAMOTO YASUMASA

KOBAYASHI MASAO

YAMASAKI KENICHI

IKEDA MINORU

Assignee
MITSUBISHI RAYON CO
Country
United States
Dates
  • Priority:
    1966/06/29
  • Grant:
    1971/01/26
Description
This web page summarizes information in PubChem about patent US-3558695-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.

1 Abstract

A PROCESS FOR PREPARING METHACRYLIC ACID AND DERIVATIVES THEREOF BY MIXING ACETONE CYANHYDRIN WITH CONCENTRATED SULFURIC ACID AND THEN SUBJECTING THE MIXTURE TO DEHYDRATION IN WHICH THE MIXING AND DEHYDRATION OPERATIONS ARE EFFECTED AT 2 OR MORE STAGES, WHEREIN THE FIRST STAGE, THE MIXING OPERATION IS EFFECTED USING A SULFURIC ACID TO ACETONE CYANHYDRIN MOLAR RATIO OF AT LEAST 1.5:1; IN THE SUBSEQUENT STAGE, THE MIXING OPERATION IS EFFECTED WHILE SO CONTROLLING SAID MOLAR RATIO AS TO GRADUALLY BECOME CLOSER TO 1:1; AND IN THE FINAL STAGE, THE MIXING OPERATION IS EFFECTED WHILE CONTROLLING SAID MOLAR RATIO TO AT LEAST 1:1.

2 Full Text

3 Important Dates

3.1 Priority Date

1966/06/29

3.2 Filing Date

1967/06/23

3.3 Publication Date

1971/01/26

3.4 Grant Date

1971/01/26

4 Inventor

SUDO MAKOTO

YAMAMOTO YASUMASA

KOBAYASHI MASAO

YAMASAKI KENICHI

IKEDA MINORU

5 Assignee

MITSUBISHI RAYON CO

6 Country

United States

7 Linked Chemicals

7.1 PubChem Compounds

7.2 PubChem Substances

8 Patent Family

9 Classification

9.1 IPC

C07C231/14 (inventive)

C07C67/00 (inventive)

C07C231/00 (inventive, first)

C07C233/09 (inventive)

C07C69/54 (inventive)

C07C57/04 (inventive)

9.2 CPC

C07C233/09 (inventive, first)

10 Cited By

11 Similar Patents

12 Information Sources

  1. Google Patents
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  2. PubChem
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