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:
Feb. 20, 2018
Filed:
Jun. 04, 2014
Applicant:
David Kranbuehl, Williamsburg, VA (US);
Inventor:
David Kranbuehl, Williamsburg, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/44 (2006.01); G01N 30/88 (2006.01); G01N 17/04 (2006.01); G01N 3/08 (2006.01); G01N 30/74 (2006.01);
U.S. Cl.
CPC ...
G01N 33/442 (2013.01); G01N 3/08 (2013.01); G01N 17/043 (2013.01); G01N 30/88 (2013.01); G01N 30/74 (2013.01); G01N 2030/885 (2013.01);
Abstract
The molecular weight distribution in a polymer sample can be used as a measure for when parts need to be replaced, and can be tracked over time to allow for predicting when parts need to be replaced and/or identifying the type of aging taking place in the polymer part. Molecular weight distribution determination has particular application in determining the replacement time and or aging parameters in polyamide (e.g., formed from 11-aminoundecanoic acid or formed from 12 aminododecanoic acid) polyvinyldiflouride, and polyethyelene pipe liners used in, for example, offshore oil and gas production and fuel transport operations.