Patent · US Active

Process for making terpene esters

US7355066B1 · kind B1 · utility

13Cited by

3References

12Claims

0Family size

Assignee

Millennium Specialty Chemicals, Inc. · US

Inventors

Walter E. Johnson · Plattsburgh, US
C. Rodney Gorman · Orange Park, US

Key dates

Filing date	Dec 4, 2006
Grant date	Apr 8, 2008
Priority date	—
Expiry date	Dec 4, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/16
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for making terpene esters is disclosed. Reaction of a terpene alcohol with acetic anhydride in the presence of a high-boiling amine provides a terpene ester. Acetic acid, which is distilled from the reaction mixture as it forms can be recovered. The terpene ester is distilled from the high-boiling amine to provide a product that is substantially free of nitrogen-containing impurities. The reaction mixture can be reused for subsequent acylations. The simple, economical process gives high-quality terpene esters while avoiding waste-disposal issues of other common acylation procedures.

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