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. 04, 1992
Filed:
Oct. 01, 1990
Applicant:
Inventors:
Raynold J Corona, Baton Rouge, LA (US);
James E Borland, Baton Rouge, LA (US);
Kim R Smith, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427365 ; 427394 ; 252-88 ;
Abstract
Laundry dryer sheets having a good loading of surfactant are prepared by (1) coating an absorbent flexible substrate with a molten tert-amine oxide wherein the molecules correspond to the formula RR'R'NO.nH.sub.2 O in which R is a primary alkyl group containing 9-24 carbons; R' is methyl, ethyl, or 2-hydroxyethyl; R' is independently selected from methyl, ethyl, 2-hydroxyethyl, and primary alkyl groups containing 8-24 carbons; and n is 0, 1, or 2, at least some of the molecules being dihydrate molecules, and (2) solidifying the amine oxide.