Preparation process and equipment of lactic acid cellulose phthalate sustained-release material

• Main Authors: CUI FENGBO, YANG GUOXU, CUI YIFAN
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a preparation process of a lactic acid cellulose phthalate sustained-release material, the preparation process comprises the following steps: S1, preparing a phthalate sustained-release material composition: putting lactic acid cellulose phthalate into a heating vessel, preheating the vessel with water, and uniformly stirring in a waste heat environment of the lactic acid cellulose phthalate, and then dissolving a certain amount of ammonium sulfate with water; and S2, preparation of a continuous phase: mixing a quantitative amount of a coupling agent and an initiator with a phthalic ester sustained-release material composition, then heating and hydrating the container, uniformly stirring the materials while hydrating, and naturally cooling after the materials are completely hydrated. The invention relates to the technical field of lactic acid cellulose phthalic ester. According to the preparation process and equipment of the lactic acid cellulose phthalate sustained-release material, t