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:
Nov. 22, 2016
Filed:
Nov. 17, 2015
Applicant:
Hexion Inc., Columbus, OH (US);
Inventors:
Yingchao Zhang, Louisville, KY (US);
David A. Snover, Floyds Knobs, IN (US);
Assignee:
HEXION INC., Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/48 (2006.01); C08F 8/00 (2006.01); C08G 81/02 (2006.01); C08F 16/06 (2006.01); C08F 8/30 (2006.01); C08L 61/24 (2006.01);
U.S. Cl.
CPC ...
C08G 81/024 (2013.01); C08F 8/30 (2013.01); C08F 16/06 (2013.01); C08L 61/24 (2013.01); C08L 2201/56 (2013.01);
Abstract
The mechanical properties of urea formaldehyde resins may be improved by incorporating therein polyvinyl alcohol. The polyvinyl alcohol may be incorporated during pre-mixing, mid mixing, and/or post mixing of the resin components. Resins prepared using polyvinyl alcohol are particularly desirable in articles requiring improved mechanical strength and water resistance, as compared to similar resins prepared without the polyvinyl alcohol such as shingles.