Microcapsule composition

[0104] The prepared organic phase and aqueous phase were mixed using a propeller mixer at 1000 rpm for 10 minutes to form a premix. The aqueous phase comprised 6 grams of pectin, 6 grams of Versa TL 502, and 5 grams of poly(styrenesulfonic acid-co-maleic acid) (3:1) sodium salt (MW 20,000). The premix was then passed through a homogenizer once at a pressure of 4000 psi. The resultant mixture was stirred at 500 rpm for 20 minutes before a mixture containing 15.2 grams of diethylene tetraamine (DETA) in 120 grams of water was added, which was followed by the addition of a mixture containing 5 grams poly(styrenesulfonic acid-co-maleic acid) (3:1) sodium salt, 0.16 grams of NaOH, and 16 grams of water. After curing for an hour at 40° C., the reaction mixture was heated to 70° C. for curing for an additional 40 minutes before a melamine-formaldehyde prepolymer solution was added over 20 minutes. The melamine-formaldehyde prepolymer solution was formed by reacting 19.5 grams of melamine a...

[0106] The microcapsules were prepared in a similar manner as in Example 1 except that the aqueous phase comprised 6 grams of pectin, 3.6 grams of Versa TL 502 (MW600,000), and 3 grams of poly(styrenesulfonic acid-co-maleic acid) (3:1) sodium salt (MW 20,000) and a homogenization pressure of 8000 psi was used.

[0107] The microcapsules prepared had a mean size of about 4.97 microns and a size distribution index of about 1.3 as measured by Beckman Coulter Multisizer.

[0108] The microcapsules were prepared in a similar manner as in Example 2 except that the aqueous phase comprised 6 grams of pectin, 3.6 grams of Versa TL 502, and 4.5 grams of poly(styrenesulfonic acid-co-maleic acid) (3:1) sodium salt (MW 20,000).

[0109] The microcapsules prepared had a mean size of about 4.6 microns and a size distribution index of about 1.36 as measured by Beckman Coulter Multisizer.