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. 16, 1993
Filed:
Jan. 09, 1992
Pacifico V Manalastas, Edison, NJ (US);
Evelyn N Drake, Bernardsville, NJ (US);
Edward N Kresge, Watchung, NJ (US);
Warren A Thaler, Flemington, NJ (US);
Lee A McDougall, Houston, TX (US);
John C Newlove, Kingwood, TX (US);
Vijay Swarup, Clinton, NJ (US);
Albert J Geiger, Ft. Saskatchewan, CA;
Exxon Research and Engineering Company, Florham Park, NJ (US);
Abstract
An encapsulated breaker chemical composition used in an oil or gas stimulation operation which comprises: a breaker chemical; and a pinhole free coating of an ionically and covalently crosslinked neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the breaker chemical, wherein said polymer encapsulates the breaker chemical, wherein the polymer is permeable to the breaker chemical and the polymer is non-reactive to the breaker chemical.