Patent US2522474A successfully refreshed from Google Patents.
EP0073541A2
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Laundry bleach product
Assignee: Procter and Gamble Co
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Filing: 1982-08-16
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Granted: —
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Expires: 2002-08-16
Abstract
Abstract A laundry bleaching article comprising a nonparticulate substrate, preferably a flexible sheet, having disposed thereon a urea adduct of an organic peroxyacid. Also a method for preparing said article.
Inventors
- 👤 Mark Leslie Kacher
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 10:54
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; C11D3/00; C11D3/39; C11D3/3945
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
64 words
A laundry additive bleach product comprising: (a) a substrate in the form of a nonparticulate solid article having disposed thereon, (b) a urea adduct of an organic peroxyacid compound having the formula: wherein R is a linear alkylene group of from 4 to 16 carbon atoms and Y is hydrogen, halogen or a radical selected from wherein M is hydrogen, alkali metal or ammonium.
Claim 2
Dependent Claim
64 words
A laundry additive bleach product comprising: (a) a substrate in the form of a nonparticulate solid article having disposed thereon, (b) a urea adduct of an organic peroxyacid compound having the formula: wherein R is a linear alkylene group of from 4 to 16 carbon atoms and Y is hydrogen, halogen or a radical selected from wherein M is hydrogen, alkali metal or ammonium.
Claim 3
Dependent Claim
19 words
.2. The article of Claim 1 wherein the organic peroxyacid compound comprises from 20% to 25% of the adduct.
Claim 4
Dependent Claim
30 words
The article of either one of Claims 1 and 2 wherein the substrate is water-insoluble and possesses sufficient structural integrity such that it does not disintegrate during the laundering process.
Claim 5
Dependent Claim
21 words
The article of any one of Claims 1-3 wherein R is from 7 to 12 carbon atoms and M is hydrogen.
Claim 6
Dependent Claim
21 words
The article of any one of Claims 1-4 wherein the weight ratio of adduct to substrate is from 3:1 to 12:1.
Claim 7
Dependent Claim
33 words
The article of any one of Claims 1-5 wherein the article has disposed thereon a surfactant, in admixture with the adduct, in an amount of from 0.5% to 5% of the said adduct.
Claim 8
Dependent Claim
26 words
The article of any one of Claims 1-6 containing from 0.1 grams to 2.5 grams of available oxygen and wherein the surfactant, if present, is anionic.
Claim 9
Dependent Claim
19 words
The article of any one of Claims 1-7 wherein the peroxyacid is peroxydodecanoic acid, diperoxydodecanedioic acid or mixtures thereof.
Claim 10
Independent Claim
71 words
A method of manufacturing a laundry additive product in accordance with any one of Claims 6-8, comprising the steps of: (a) forming a slurry of a urea adduct of a peroxyacid compound in an aqueous surfactant mixture which contains from 0.5% to 5% of a surfactant based on weight of adduct; (b) applying the slurry of (a) to a nonparticulate substrate; and (c) removing substantially all of the water by evaporation.
References Cited (Backward Citations)
No citation records indexed.
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