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. 01, 1988
Filed:
Oct. 20, 1986
Applicant:
Inventors:
Eugene R Moore, Midland, MI (US);
Rudolph Lindsey, Jr, Midland, MI (US);
Brian D Dalke, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08J / ; B29B / ;
U.S. Cl.
CPC ...
528483 ; 528503 ; 521 97 ; 521146 ; 525241 ; 26432817 ; 26433117 ; 264345 ; 264348 ;
Abstract
The specification discloses a method for assuring consistent and, if desired, increased melt flow rate in a vinyl aromatic based polymer by controlling the degree of absorption of carbon dioxide, oxygen and/or argon for a substantial period of time immediately prior to introduction of the polymer into a molding machine.