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. 25, 2003
Filed:
May. 16, 2001
Michael B. Hogan, Weatogue, CT (US);
Henkel Loctite Corporation, Rocky Hill, CT (US);
Abstract
An improved method is disclosed for heat curing a polymerizable impregnant composition within an impregnated porous article. The amount of the article's porosity that is filled with the impregnant composition is maximized by applying successively discrete temperature and pressure increments in a system comprising at least one porous impregnated article and a curing chamber having a heat transfer medium therein. During such curing, both temperature and pressure are controlled for an initial duration and subsequently increased by successive increments wherein each successive temperature and pressure exceeds a previous temperature and pressure, respectively, until a maximum temperature and pressure is achieved. The maximum temperature and pressure are maintained until the impregnant composition is cured, resulting in an improved product having greater structural integrity and surface quality.