EP0332259A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Laundry compositions containing peroxyacid bleach and perfume particles
Assignee: Procter and Gamble Co
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Filing: 1989-03-03
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Granted: —
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Expires: 2009-03-03
Abstract
Abstract Laundry detergent or bleaching compositions containing peroxyacid bleach and perfume particles formed by adsorbing a perfume composition onto silica particles. The particles protect the perfume from oxidation by the bleach allowing for more efficient delivery of perfume to the laundry process and fabrics.
Inventors
- 👤 John Albert Sagel
- 👤 Charles Albert Schulz
- 👤 Russell Joseph Merz
- 👤 Alyce Elizabeth Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 02:53
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3945; C11D3/50; C11D3/502; C11D3/505
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
A granular laundry detergent or bleaching composition comprising a peroxyacid bleach, characterized in that it further comprises a dry, flowable, perfumed silica particle, preferably from 0.001% to 5% of the silica particle, having a particle size of from 0.001 micron to 15 microns and having a suitable perfume composition adsorbed onto said silica particle, the weight ratio of said perfume composition to the silica particle being from 0.001:1 to 6:1, preferably from 0.1:1 to 3:1.
Claim 2
Dependent Claim
75 words
A granular laundry detergent or bleaching composition comprising a peroxyacid bleach, characterized in that it further comprises a dry, flowable, perfumed silica particle, preferably from 0.001% to 5% of the silica particle, having a particle size of from 0.001 micron to 15 microns and having a suitable perfume composition adsorbed onto said silica particle, the weight ratio of said perfume composition to the silica particle being from 0.001:1 to 6:1, preferably from 0.1:1 to 3:1.
Claim 3
Dependent Claim
24 words
The composition of Claim 1 wherein said silica particle is a silica gel having a particle size of from 1 micron to 8 microns.
Claim 4
Dependent Claim
34 words
The composition of Claim 1 wherein said silica particle is a fumed silica having a particle size of from 0.007 microns to 0.025 microns and a surface area of from 200 to 400 m²/g.
Claim 5
Dependent Claim
33 words
The composition of any one of the preceding claims wherein said silica particle is present at a level of from 0.1% to 1% to provide a perfume level of from 0.01% to 0.5%.
Claim 6
Dependent Claim
19 words
The composition of any one of the preceding claims wherein said perfume composition is relatively substantive to said fabrics.
Claim 7
Dependent Claim
30 words
The composition of any one of the preceding claims wherein the peroxyacid bleach is a preformed peracid present at a level to provide from 0.1% to 10% of available oxygen.
Claim 8
Dependent Claim
73 words
The composition of any one of the preceding claims wherein the peracid is selected from the group consisting of: wherein R₁ and R₂ are alkylene groups containing from 1 to 20 carbon atoms or phenylene groups, R₃ is hydrogen or an alkyl, aryl, or alkaryl group containing from 1 to 10 carbon atoms, and X and Y are hydrogen, halogen, alkyl, aryl, or any group which provides an anionic moiety in aqueous solution.
Claim 9
Dependent Claim
21 words
The composition of any one of the preceding claims wherein the peracid is diperoxydodecanedioic acid or the nonylamide of peroxysuccinic acid.
References Cited (Backward Citations)
No citation records indexed.
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