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:
Aug. 16, 1994
Filed:
Jul. 15, 1992
Applicant:
Inventors:
William R Dunnavant, Columbus, OH (US);
Robert B Fechter, Worthington, OH (US);
Assignee:
Ashland Oil, Inc., Columbus, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08G / ; C08G / ; B22C / ;
U.S. Cl.
CPC ...
523143 ; 523141 ; 523142 ; 524121 ; 524136 ; 524149 ;
Abstract
Polyphosphoryl chlorides are used in polyurethane-forming foundry binder systems to extend the bench life of foundry mixes prepared by mixing the binder systems with sand. The foundry mixes are particularly useful for preparing molds and cores used for making metal castings.
Dunnavant, William. (1994). Polyurethane-forming binder systems containing a polyphosphoryl chloride (U.S. Patent No. 5338774). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5338774
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile