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. 13, 1976
Filed:
Jul. 19, 1974
Richard C Hannay, Houston, TX (US);
Other;
Abstract
An improvement in the known method of setting or resetting poles in the ground with foamed polyurethane resins formed in-situ from polyisocyanate and resin reactive therewith, is described. Ground water is often encountered in pole setting and affects polyurethane foam formation by undesirably reacting with polyisocyanate to give a foam of insufficient density and strength. This improvement comprises extending polyurethane components with a nonvolatile water-immiscible material (e.g. hydrocarbon oil) which inhibits the undesired reaction of water and polyisocyanate and reduces the unit cost of the polyurethane foam. The addition to the polyurethane composition of termite repellant materials and preservative agents for the pole is also described.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile