Leland S Endres

US Patent:

39313298, Jan 6, 1976

Filed:

Jan 23, 1974

Appl. No.:

5/435669

Inventors:

Leland S. Endres - San Luis Obispo CA
Leo F. Gehlhoff - Lake Elmo MN
Dallas D. Zimmerman - Shoreview MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

C07C 4980

US Classification:

260592

Abstract:

Condensation products of aldehydes and fluoraliphatic phenols are substantive to wool, synthetic polyamides, leather and skin, the compositions preferably being extended with a suitable pharmaceutical medium. The condensation products are useful for the preparation of compositions that render such materials oil and water repellent.

US Patent:

39794636, Sep 7, 1976

Filed:

Mar 18, 1974

Appl. No.:

5/451920

Inventors:

Leland S. Endres - San Luis Obispo CA

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

C07C 3926

US Classification:

260623D

Abstract:

Fluoroaliphatic phenols are prepared by reacting an olefinic phenol with a perfluoroalkyl sulfonyl chloride, bromide, or fluoride in the presence of a free radical catalyst at a temperature of from about 100. degree. -150. degree. C. The fluoroaliphatic phenols are useful in the preparation of condensation products with aldehydes which products are substantive to the skin and render the skin or similar materials repellent to aqueous and oily materials.