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. 08, 2011
Filed:
Mar. 18, 2010
Applicants:
Donald L. Rymer, Little Hocking, OH (US);
Nolan K. Read, Iii, Vienna, WV (US);
Inventors:
Donald L. Rymer, Little Hocking, OH (US);
Nolan K. Read, III, Vienna, WV (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/28 (2006.01); C08J 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polyvinyl butyral (PVB) resin has a meso/racemic stereoisomer ratio of from aboutto about. A process for preparing this PVB resin is described. Manipulation of the PVB stereoisomer ratio can provide an additional method of controlling the physical properties of a plasticized composition comprising the PVB resin, in addition to or in lieu of changing additives or otherwise manipulating the components of the plasticized PVB resin composition.