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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 3941847 B1

PDFFull Text
Date of Patent:
Mar. 02, 1976

Filed:

Apr. 23, 1973

Aldehyde functional polymers

Applicant:
Inventors:

Toshio Yukuta, Kodaira, JA;

Minoru Kojima, Hachioji, JA;

Akira Onishi, Kodaira, JA;

Shu Kanbara, Tokyo, JA;

Assignee:

Bridgestone Tire Company Limited, Tokyo, JA;

Attorney:

Sughrue, Rothwell, Mion & Zinn

Primary Examiner:

Richard J Gallagher

Assistant Examiner:

D B Springer

Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2606 / ; 260 / ;
Abstract

Aldehyde functional polymers having a molecular weight of about 500 to 50,000 and containing aldehyde functional groups at both ends and/or on side chains of the molecule are produced by subjecting some of the double bonds in a high polymer containing olefinically unsaturated double bonds to ozone-decomposition by ozone-containing gas and reducing the ozone-decomposition products by means of a trivalent phosphorus compound as a reducing agent into substantially only aldehyde functional groups.

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Yukuta, Toshio. (1976). Aldehyde functional polymers (U.S. Patent No. 3941847). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3941847

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