Encapsulated organic solution particles

Abstract

Modified starch encapsulated organic particles, and a process for making said particles and products comprising such particles are disclosed. Such particles provide a simple, efficient and effective delivery system that can be used to deliver organic solutions such as oils to compositions.

1 . A composition comprising a) a microreticulated or microfibrillated microcrystalline cellulose, or powdered cellulose, b) an oil, c) a modified starch, and d) a synthetic, amorphous precipitated silica (silicon dioxide).  
   
   
       2 . The composition of  claim 1  wherein the weight ratio of cellulose to oil in the dry composition is from about 0.60-0.75:1.0.  
   
   
       3 . The composition of  claim 1  wherein the cellulose is microreticulated or microfibrillated microcrystalline or powdered.  
   
   
       4 . The composition of  claim 1  wherein the oil that is a liquid between about 10.degree. C. and 90.degree.  
   
   
       5 . A process for preparing the composition of  claim 1  comprising forming an intimate mixture consisting essentially of microreticulated or microfibrillated microcrystalline cellulose, or powdered cellulose and an oil by blending from 30 to 60 seconds.  
   
   
       6 . The composition of  claim 1  wherein the modified starch such as malto-dextrin has a low dextrose equivalent, of approximately 10 or lower.  
   
   
       7 . The composition of  claim 1  wherein the weight ratio of modified starch to intimate mixture of  claim 5  in the dry composition is from about 0.20-0.25:1.7.  
   
   
       8 . A process for preparing the composition of  claim 1  comprising forming an intimate mixture consisting of the intimate mixture of  claim 5  and a modified starch by blending from 30 to 60 seconds.  
   
   
       9 . The composition of  claim 1  wherein the silicon dioxide is a synthetic, amorphous precipitated silica such as Sipernat.  
   
   
       10 . The composition of  claim 1  wherein the weight ratio of silicon dioxide to the intimate mixture of  claim 8  in the dry composition is from about 0.10-0.15:1.9.  
   
   
       11 . A process for preparing the composition of  claim 1  comprising forming an intimate mixture consisting of the intimate mixture of  claim 8  and a silicon dioxide by blending from 30 to 60 seconds.  
   
   
       12 . A process for preparing the composition of  claim 1  comprising particle size milling of the intimate mixture of  claim 11.