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.:
Date of Patent:
Jun. 05, 1990
Filed:
Oct. 20, 1989
Ta-Wang Lai, Novato, CA (US);
Robert K Pinschmidt, Jr, Allentown, PA (US);
William F Burgoyne, Jr, Emmaus, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
An amine functional copolymer of vinyl alcohol is provided by copolymerizing a vinylester with a morpholinoalkylvinylether or a morpholinoalkylallylether and then hydrolyzing the ester groups in the copolymer to hydroxy groups. The preferred copolymer is formed from vinyl acetate and morpholinoethylvinylether and 1 to 30 mol percent of the polymerized ethylene linkages in the polymer backbone contain pendant morpholinoethylether groups.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile