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:
Jun. 23, 1998
Filed:
Aug. 19, 1996
Philip Alan Block, North Bergen, NJ (US);
Samuel Qcheng Lin, Paramus, NJ (US);
Robert Madeira Andrews, Oakland, NJ (US);
Scott David Manske, Ridgfeield, NJ (US);
Lever Brothers Company, Division of Conopco, Inc., New York, NY (US);
Abstract
A bleach granule is provided with 60-100% being an intimate mixture of an amido or imido C.sub.2 -C.sub.30 peroxy acid and a surfactant, in a weight ratio of 20:1 to 1:20. The most preferred peroxyacids are N,N-phthaloylaminoperoxycaproic acid (PAP); monononylamide of either peroxysuccinic acid (NAPSA) or peroxyadipic acid (NAPAA) and N,N'-terephthaloyl-di(6-aminoperoxycaproic acid) (TPCAP). Localized dye damage from the peroxy acid bleach is prevented by the presence of the surfactant. Bleach compositions and a method for cleaning a stained substrate with the bleach granule are also described.