Claims
- 1. A liquid laundry detergent composition, comprising:
- (a) from about 10% to about 40% of a surfactant selected from the group consisting of anionic, nonionic, zwitterionic, ampholytic, cationic surfactants, and mixtures thereof;
- (b) from about 5% to about 50% of a detergency builder material; and
- (c) perfume particles having an average size of less than about 350 microns which comprise from about 5% to about 70% of a perfume dispersed in from about 30% to about 95% of a water-insoluble polymeric carrier material having a molecular weight of from about 100 to about 30,000, a melting point of from about 37.degree. C. to about 190.degree. C., and a hardness value of from about 0.1 to about 15, said perfume particles comprising from about 5% to about 50% of a pH-sensitive material coating the outside surface of the particle, which pH sensitive coating remains intact in one pH environment, which occurs when the composition is diluted for use.
- 2. The particles of claim 1 wherein the pH-sensitive material is selected from the group consisting of acrylic resins, cellulose acetate phthalate and cellulose acetate trimellitiate.
- 3. The particles of claim 2 wherein the pH-sensitive material additionally comprises from about 0.5% to about 10%, by weight of the perfume particles, of a plasticizer material.
- 4. The particles of claim 3 wherein the plasticizer material is selected from the group consisting of diethyl phthalate, tributyl citrate, and acetyltributyl citrate.
Parent Case Info
This is a continuation of application Ser. No. 297,897, filed on Jan. 17, 1989.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4906488 |
Pera |
Apr 1990 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
297897 |
Jan 1989 |
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