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:
Sep. 26, 2000
Filed:
Feb. 24, 1998
Applicant:
Inventor:
Carrington Duane Smith, Milford Square, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524832 ; 526209 ; 526210 ; 526330 ; 526331 ;
Abstract
This invention relates to improved vinyl acetate-based polymers which are formed by emulsion polymerizing vinyl acetate and other comonomers under conditions of free radical polymerization. The improvement resides in the stabilizer system, the stabilizer being a condensation product of a polyol having a weight average molecular weight of from 500 to 10,000 reacted with a diepoxide. An example is the reaction product of polyethylene glycol and the diglycidyl ether of Bisphenol A.