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. 19, 1989
Filed:
Jan. 26, 1989
Applicant:
Inventors:
Masao Yafuso, El Toro, CA (US);
John K Suzuki, San Juan Capistrano, CA (US);
Assignee:
Minnesota Mining And Manufacturing Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B29D / ; G01N / ; G02B / ;
U.S. Cl.
CPC ...
264-15 ; 8541 ; 8543 ; 8599 ; 8618 ; 264 78 ; 264236 ; 264347 ; 524424 ;
Abstract
A method for preparing a gas sensor includes forming a mixture containing an aqueous buffer solution including a dissolved dye, a polymeric precursor of a cross-linked polymeric material, and a cross-linking agent and reacting the polymeric precursor and the cross-linking agent in the mixture to form a gas sensor including micro-compartments of the aqueous buffer solution dispersed in the cross-linked polymeric material.