Patent · US Expired

Manufacture of butanedicarboxylic acid esters

US4618702A · kind A · utility

0Cited by
6References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 24, 1985
Grant dateOct 21, 1986
Priority date—
Expiry dateJan 24, 2005

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C67/38
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Increased catalyst concentration relative to butadiene in its carboalkoxylation permits operation at reduced pressure and simplifies process steps.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.