TH1014A - The process used to cover the substance with micro-capsules. - Google Patents

Abstract

In the micro-capsule encapsulation process involving polymerization between two systems, between amine-containing compounds and polybasic acid chlorides or anhydrides. Polymerization It acts in an aqueous solution emulsion in a hydrophobic organic liquid, causing the reaction to be stopped by water into the hydrophobic phase of the emulsion, which will react and destroy acid chloride or anhydride. The rest

Claims (9)

1. The process of encapsulating substances with micro-capsules that substance is an aqueous solution of amine by emulsifier, aqueous solution in liquid. It is then polymerised around a small droplet by polymerization between the two systems by reacting with the polybasic acid chloride or anhydride. It has a characteristic that makes the reaction polymerite. The session stopped by adding water to the Reaction medium to react with and destroy the remaining acid chloride or anhydride groups. 2. The process according to Clause 1 which is unique is to add Water enters the medium of this reaction by adding a solution of water. In organic liquids into the reaction medium, the solution is almost completely homogeneous with the hydrophobic phase. Of that emulsion 3. The process according to claim 2, which is characterized by the organic liquid that dissolves water, that is, aliphatic alcohol with 5 carbon atoms. 4. The process according to claim 3, which has unique characteristics as follows: That alcohol is methanol, ethanol, n-propanol, isopropanol, n-butanol, butane-2-all or n. - amyl alcohol 5. The process according to claim 3, which is unique is to stop the reaction by adding a solution of approximately 3% of the water in ethanol. 6. Procedures according to Clause 1 to 5, Which of the following are The unique characteristics are Aqueous amine solution is an aqueous solution of hydrophilic protein, which has more free amine groups than one group. 7. The process according to Clause 6 is unique, ie each substance. The amine pattern in the water, the emulsifier in the organic liquid, which With non-polar solvents quite a lot 8. Procedures according to Clause 1 to 7, which of the following are Characteristic is the acid. Chloride or anhydride is shebacoyl chloride, chacchinoyl chloride adipoyl chloride, phthaloyl chloride, terephthalo. Ilchloride or chitrole chloride or chacchinic, anhydride 9. Procedures according to Clause 1 to 8, which one of these is unique? The cycle of solvent is poured out of the capsule after. From stopping the reaction 1 0. The process according to Clause 9, which is characterized by the separation of the capsule from the solvent cycle, is then dried (10 claims, 1 page, 0 photos).