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AssigneeSeoul National University Industry Foundation
InventorsSeung-Yeop Kwak, Sung-Ho Kim, Seok-Bong Lee
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Disclosed are plasticizer compositions including cyclodextrin derivatives, a flexible PVC composition with suppression of the migration of a plasticizer containing the same, and a manufacturing method thereof. The manufacturing method of the flexible PVC composition of the present invention includes steps of (S1) preparing cyclodextrin derivatives; (S2) mixing the cyclodextrin derivatives, PVC and a low molecular weight liquid plasticizer to form a plastisol; and (S3) heating the plastisol to form a solution and cooling the solution. The manufacturing method PVC-1 of the present invention may be useful to mass-produce flexible PVC with suppression of the migration of a plasticizer in a simple and economic manner without using solvents since the cyclodextrin derivatives are used as a compound that can suppress the migration of a plasticizer. The flexible PVC has an effect of reducing an amount of the migrated plasticizer without deterioration in its physical properties.
A plasticizer composition comprising a low molecular weight liquid plasticizer and cyclodextrin derivatives represented by the following Formula 3:
A flexible PVC composition with suppression of the migration of a plasticizer comprising PVC and a low molecular weight liquid plasticizer, the flexible PVC composition further comprising cyclodextrin derivatives represented by the following Formula 3:
A method for manufacturing a flexible PVC composition with suppression of the migration of a plasticizer, the method comprising:
A method for manufacturing a flexible PVC composition with suppression of the migration of a plasticizer, the method comprising:
Dependencies are inferred from the claim text.