Patent ID: 7786027

Claim:
An article comprising: a. a functionalized substrate comprising: i. from about 1% to about 20% by weight of said functionalized substrate, of a cellulose derivative selected from the group consisting of a hydroxypropylmethylcellulose phthalate, a hydroxypropylmethyycellulose acetate succinate, a carboxymethylethyl cellulose, a cellulose acetate trimellitate, a cellulose acetate phthalate, and mixtures thereof; ii. from about 0.001% to about 50% by weight of said functionalized substrate, of a binder material; and iii. a plurality of microcapsules encapsulating at least one functional material, wherein said plurality of microcapsules is incorporated with said functionalized substrate; said functionalized substrate having a rate of dissolution in water of from about 0.1 to about 1 gram/minute at a temperature of 40° F.-50° F.