A ONE STEP PROCESS FOR THE PELLETISATION OF POLY LACTIC ACID WITHOUT MELT PROCESSING

• Main Authors: DIKSHIT, Karan Vivek, LELE, Ashish Kishore, SHETE, Abhijit Pravin
• Format: Patent
• Language: English; French; German
• Published: 16.12.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The present invention relates to a one step process for the palletization of poly lactic acid of molecular weight in the range of 6-8 lakhs without melt processing such that the pellets obtained exhibit minimal molecular weight reduction. The molecular weight of poly lactic acid (PLA) in the obtained pellets is retained in the range of 6-8 lakhs.