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:
Jul. 29, 1997
Filed:
Nov. 18, 1994
Applicant:
Inventors:
John Collins Dyer, Cincinnati, OH (US);
Thomas Allen DesMarais, Cincinnati, OH (US);
Keith Joseph Stone, Fairfield, OH (US);
Paul Seiden, Cincinnati, OH (US);
Stephen Allen Goldman, Cincinnati, OH (US);
Herbert Louis Retzsch, Cincinnati, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; C08J / ; A61F / ;
U.S. Cl.
CPC ...
502402 ; 502439 ; 604369 ; 604372 ; 604374 ; 521 62 ; 521 63 ; 521 64 ;
Abstract
Relatively thin, collapsed, i.e. unexpanded, polymeric foam materials that, upon contact with aqueous body fluids, expand and absorb such fluids, are disclosed. A process for consistently obtaining such relatively thin, collapsed polymeric foam materials by polymerizing a specific type of water-in-oil emulsion, commonly known as High Internal Phase Emulsions or 'HIPE', is also disclosed.