EP0332260A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fabric softening composition comprising 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 Perfume particles which are especially useful when incorporated into a fabric softening composition are formed by adsorbing a perfume composition onto silica particles. Those particles having a diameter of greater than about one micron also can be used to reduce the shiny appearance of visible softener spots which occasionally are present on fabrics treated with said fabric softening compositions and to maintain a relatively constant viscosity of the molten softening composition.
Inventors
- 👤 Joseph Michael Ladd, Jr.
- 👤 Alyce Elizabeth Nicholson
- 👤 Russell Joseph Merz
- 👤 Thomas James Wierenga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 04:50
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/50; C11D3/502; C11D3/505
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
53 words
A dry, flowable silica particle having a particle size of from about 0.001 micron to about 15 microns and having a perfume composition suitable for use in a fabric conditioning process adsorbed onto said silica particle, the ratio of said perfume composition to the silica particle being from about 0.001:1 to about 6:1.
Claim 2
Dependent Claim
53 words
A dry, flowable silica particle having a particle size of from about 0.001 micron to about 15 microns and having a perfume composition suitable for use in a fabric conditioning process adsorbed onto said silica particle, the ratio of said perfume composition to the silica particle being from about 0.001:1 to about 6:1.
Claim 3
Dependent Claim
26 words
The particle of Claim 1 wherein said silica particle is a silica gel having a particle size of from about 1 micron to about 8 microns.
Claim 4
Dependent Claim
26 words
The particle of Claim 2 wherein said silica particle is a silica aerogel having a particle size of from about 2 microns to about 6 microns.
Claim 5
Dependent Claim
15 words
The particle of Claim 3 wherein said perfume composition is relatively substantive to said fabrics.
Claim 6
Dependent Claim
37 words
A detergent composition comprising from about 0.001% to about 2% of the particle of Claim 1 wherein said silica particle is a fumed silica having a primary particle size of from about 0.007 to about 0.25 micron.
Claim 7
Dependent Claim
33 words
The composition of Claim 5 wherein said silica particle is present at a level of from about 0.1% to about 1% to provide a perfume level of from about 0.001% to about 1.5%.
Claim 8
Dependent Claim
15 words
The particle of Claim 6 wherein said perfume composition is relatively substantive to said fabrics.
Claim 9
Dependent Claim
33 words
The particle of Claim 7 wherein said silica particle is present at a level of from about 0.1% to about 1% to provide a perfume level of from about 0.001% to about 1.5%.
Claim 10
Dependent Claim
21 words
The particle of Claim 8 wherein said perfume composition is present at a level of from about 0.01% to about 0.2%.
Claim 11
Dependent Claim
81 words
A solid dryer-activated fabric softener composition comprising: (i) at least about 10% of fabric softener, the said softener composition having a melting point of from about 50°C to about 80°C and (ii) at least 4% of a perfumed silica gel particle having a particle size of more than about one micron to lessen the number of undesirable visible fabric softener deposits on fabric and to provide fabric odor, the ratio of perfume to silica gel being from about 0.1 to 3.
Claim 12
Dependent Claim
81 words
A solid dryer-activated fabric softener composition comprising: (i) at least about 10% of fabric softener, the said softener composition having a melting point of from about 50°C to about 80°C and (ii) at least 4% of a perfumed silica gel particle having a particle size of more than about one micron to lessen the number of undesirable visible fabric softener deposits on fabric and to provide fabric odor, the ratio of perfume to silica gel being from about 0.1 to 3.
Claim 13
Dependent Claim
15 words
The dryer-activated fabric softener composition of Claim 10 in the form of detergent compatible particles.
Claim 14
Dependent Claim
108 words
The particulate composition of Claim 11 comprising a coating surrounding said softener particles which are the inner core to protect said softener from detergents; the said coating comprising from about 2% to about 30% of said coated softener particles and solid inner core softener particles comprising from about 98% to about 70% of said coated softener particles, wherein the said coated softener particles have a size of from about 5 to about 1500 microns and the coating has a melting point above about 35°C and a penetration value of no more than about 0.6 mm as measured by ASTM Test D-1321, modified by using a 100 gram weight.
Claim 15
Dependent Claim
36 words
The particulate composition of Claim 12 wherein the coating (b) comprises a material selected from substantially water-insoluble polymers, paraffinic waxes, microcrystalline waxes, animal waxes, vegetable waxes, saturated fatty acids, saturated fatty alcohols and saturated fatty esters.
Claim 16
Dependent Claim
27 words
The particulate composition of Claim 11 wherein said silica particle is a silica gel having a particle size of from about 2 microns to about 6 microns.
Claim 17
Dependent Claim
30 words
The particulate composition of Claim 14 wherein said silica particle is a silica aerogel, and the level of the perfume is from about 0.02% to about 10% in the softener.
Claim 18
Dependent Claim
11 words
The composition of Claim 10 wherein said perfume is relatively substantive.
Claim 19
Dependent Claim
11 words
The composition of Claim 10 wherein said perfume is relatively nonsubstantive.
Claim 20
Dependent Claim
24 words
The composition of Claim 10 wherein said fabric softener composition is attached to a substrate suitable for addition to an automatic laundry fabric dryer.
Claim 21
Dependent Claim
23 words
A particulate detergent composition comprising the particles of Claim 11 at a level to provide from about 0.5% to about 10% fabric softener.
Claim 22
Dependent Claim
12 words
The detergent composition of Claim 19 contained in a sealed, water-insoluble pouch.
Claim 23
Dependent Claim
17 words
The process of providing perfume release from the particles of Claim 1 by wetting them with water.
Claim 24
Dependent Claim
14 words
The process of Claim 21 wherein said silica particles are attached to a substrate.
Claim 25
Dependent Claim
27 words
The process of Claim 22 wherein said substrate is selected from the group consisting of absorbent materials, nonabsorbent portions of articles comprising absorbent materials, and mixtures thereof.
Claim 26
Dependent Claim
12 words
The process of Claim 21 wherein the particles are deposited on skin.
References Cited (Backward Citations)
No citation records indexed.
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