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:
Oct. 15, 1996
Filed:
Dec. 07, 1995
Judy A Godbey, Tampa, FL (US);
Jyothi S Pisipati, Wexford, PA (US);
The Celotex Corporation, Tampa, FL (US);
Abstract
A process for the manufacture of a closed cell, rigid, polymer foam from polymer foam-forming ingredients containing a filler which comprises: (a) dispersing the filler in at least a portion of the foam-forming ingredients to form a filled dispersion, a fluorochemical surfactant being incorporated in the foam-forming ingredients either before, during or after the dispersing operation to form a dispersion containing a filler and a fluorochemical surfactant, (b) mixing the dispersion formed in step (a) with any remaining foam-forming ingredient or ingredients, and (c) foaming and curing the resultant foam-forming composition. The fluorochemical surfactant improves the stability, flowability and mixing of the dispersion during the foam production.