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:
Sep. 23, 1980
Filed:
Oct. 20, 1978
Applicant:
Inventors:
Melvin Brauer, East Brunswick, NJ (US);
Barton C Case, Howell, NJ (US);
Thaddeus F Kroplinski, Bound Brook, NJ (US);
Assignee:
NL Industries, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2103 / ; 2103 / ;
Abstract
A non-wicking polyurethane casting system has been developed which comprises the reaction product obtained by admixing a polyol containing N-N-N'-N'-tetrakis (2-hydroxypropyl) ethylene diamine, (hereafter referred to as QUADROL) with an isocyanate terminated polyurethane based prepolymer. This non-wicking casting system is useful as a potting compound in biomedical applications such as dialysis and hemoultrafiltration devices and the like.