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:
Jun. 06, 2017
Filed:
Sep. 16, 2009
Applicant:
Paul R. Lavallee, Berwyn, PA (US);
Inventor:
Paul R. Lavallee, Berwyn, PA (US);
Assignee:
PMC ORGANOMETALLIX, INC., Wilmington, DE (US);
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/06 (2006.01); C08J 9/00 (2006.01);
U.S. Cl.
CPC ...
C08J 9/06 (2013.01); C08J 9/0052 (2013.01); C08J 2327/06 (2013.01);
Abstract
The density of rigid foamed articles made by the thermal decomposition of a blowing agent in a vinyl chloride polymer is reduced by the use of a tin based blowing agent activator(s). The tin based activator also reduces the activation temperature of a chemical blowing agent, allowing for more optimal evolution of gas during plastic processing. Dibutyl tin oxide or tin maleates are superior activators of vinyl chloride polymer blowing agents.