Perfume polymeric particles

1. A method for making an aqueous fabric softening compostion having pH from about 2 to about 8 with improved delivery of perfume raw material, said method comprising preparing a perfume polymeric particle by mixing:

a) a polymeric particle comprising a monomer which is in its protonated cationic form in aqueous media at a pH within the range of about 2 to about 8 having the formula:

wherein each of R 1 , R 2 and R 3 are independently selected from hydrogen or C 1 to C 6 alkyl; T is a carboxylic moiety; Z is —(CH 2 )—; z is 2; A is NR 6 R 7 wherein R 6 and R 7 are independently selected from H, C 1 -C 8 linear or branched alkyl, or alkyleneoxy having the formula:

—(R 9 O) y R 10

wherein R 9 is C 2 -C 4 linear or branched alkylene, carbonyl alkyl, or mixtures thereof; R 10 is hydrogen, C 1 -C 4 alkyl carbonyl alkyl, or mixtures thereof; y is an integer from 1 to 10; and

b) a perfume comprising a perfume raw material having a Kovats Index value of from about 1000 to about 1400 and optionally one or more of the following characteristics:

a molecular weight of less than about 200;

a boiling point of less than about 250° C.; or

a ClogP of less than about 3;

wherein the polymeric particle has a net cationic charge at a pH from about 2 to about 8 from about 20 mV to about 80 mV, a particle size in the range from about 100 nanometers to about 50 micrometers and a Response Factor (RF) of the perfume polymeric material is at least about 1.5, as measured by Longevity Test Protocols I or II, said perfume being non-encapsulated by and non-polymerically associated with the polymer, and

c) adding said perfume polymeric particles to a product matrix comprising a fabric softening agent.

2. The method according to claim 1 wherein the cationic monomer of said polymer is dimethylaminoethyl methacrylate.

3. The method according to claim 1 wherein the polymeric particle further comprises a non-cationic monomer.

4. The method according to claim 3 wherein the non-cationic monomer is selected from the group consisting of: methyl methacrylate, methyl acrylate, ethyl acrylate, n-propyl acrylate, iso-propyl acrylate, n-butyl acrylate, isobutyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, benzyl acrylate, ethylhexyl acrylate, n-propyl methacrylate, ethyl methacrylate, iso-propyl methacrylate, isobutyl methacrylate, n-butyl methacrylate, methacrylic acid, acrylic acid, acrylamide, methacrylamide, styrene, α-methyl styrene, hydroxyethyl methacrylate, hydroxypropyl methacrylate, hydroxybutyl acrylate, hydroxybutyl methacrylate, PEG acrylate, phenyl methacrylamide, t-butyl methacrylamide, p-hydroxyphenyl methacrylamide, vinyl ethers, vinyl ketones, vinyl acetates, vinyl phenols, acylamido-2-methylpropanesulfonic acid, vinlysulfonate, vinylpropionate, methylallylsulfonic acid, N-vinyl formamide and N-vinylpyrrolidone, and mixtures thereof.

5. The method according to claim 1 wherein the perfume polymeric particle has an average particle size of from about 1 μm to about 39 μm.

6. The method according to claim 1 wherein the perfume polymeric particle has an average particle size of from about 200 nm to about 900 nm.

7. The method according to claim 1 wherein the polymer is a water-insoluble polymer.

8. The method according to claim 1 wherein the perfume raw material comprises at least about 10% by weight of the perfume.