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METHOD OF OBTAINING A RETICULATED POLYESTER USING FREE PROCESS OF TOXIC REAGENTS, RETICULATED POLYESTER AND USE

Document type:Patente
Inventor(s): Rubens Maciel Filho; André Luiz Jardini Munhoz; Anderson de Jesus Bonon; Maria Ingrid Rocha Barbosa Schiavon; Maria Regina Wolf Maciel; Natalia Lorena Parada Hernandez
Applicant: Universidade Estadual de Campinas (UNICAMP)
Deposit date: December 2015, 10
INPI register:
PCT/BR2015/000188
IPC: C08G 63/78
Abstract

(EN) The present invention relates to a process for synthesizing cross-linked polyester from the curing reaction of atoxic epoxidized plant oils, cross-linked polyester produced by said process and use thereof in the medical field, particularly for tissue engineering. To this end, non-toxic comonomers were used in the formulation and without the use of initiators and/or catalysts, making the material atoxic. Said epoxide resin with a toxic agent-free history was subsequently cured in the presence of citric acid, which was chosen as the curing agent due to its non-toxic nature. The curing reaction of epoxidized castor bean oil and citric acid allowed a cross-linked polyester to be produced from a formulation that is free of catalysts and/or initiators and toxic comonomers.


FAPESP's process: 09/16480-6 - Epoxy Biopolymers Synthesis from Renewable Sources for Building Biomedical Devices Using Rapid Prototyping Techniques and Biofabrication
Grantee:Maria Ingrid Rocha Barbosa Schiavon
Principal Investigator:Rubens Maciel Filho
Institution: Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Química (FEQ)
Support Opportunities: Scholarships in Brazil - Post-Doctoral