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:
May. 05, 1992
Filed:
Jul. 09, 1990
Applicant:
Inventors:
David R Battiste, Bartlesville, OK (US);
Kenneth W Willcox, Bartlesville, OK (US);
Tommy J Morgan, Ramona, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
374 45 ; 422 80 ; 422 8205 ; 374-8 ; 356438 ; 356439 ; 340628 ; 73 1901 ; 73 232 ;
Abstract
An apparatus and method for determining the propensity of a polymer to emit smoke by measuring the smoke emitted when the polymer is melted and extruded. The polymer is heated to a molten state and extruded under controlled time conditions into a receptacle from which gaseous samples can be collected, then the gaseous samples from the receptacle are analyzed for smoke content to determine the propensity of the polymer to emit smoke.