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, 1994
Filed:
Oct. 21, 1992
Applicant:
Inventor:
Max L Carroll, Jr, Kingsport, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73788 ; 73 37 ;
Abstract
Disclosed are a method and apparatus for determining the stretching characteristics of thermoplastic articles such as bottles on a consistently accurate basis by making an initial measurement such as dimension or volume, stretching the article to the onset of strain hardening, and correlating the measurements to a physical property such as inherent viscosity, intrinsic viscosity or molecular weight of the thermoplastic article.