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:
Feb. 27, 2001
Filed:
Aug. 11, 1999
Applicant:
Inventors:
Albert M. Giorgini, Maplewood, MN (US);
James A. Hagquist, St. Paul, MN (US);
Assignee:
H. B. Fuller Licensing & Financing, Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 6/300 ;
U.S. Cl.
CPC ...
B01D 6/300 ;
Abstract
Described is a filter and a method for preparing the filter that includes a porous filter media that is bonded to an end cap using a two-part, isocyanate-based adhesive. The adhesive is free of inorganic pigments and fillers and is the reaction product of at least one polymeric polyol component and at least one polyisocyanate component. The polyol component includes a high MW triol having sufficiently different intrinsic reaction rates to generate phase separation during curing. The components react and cure to form a product having an L* white value greater than about 60.