Rigid foam-based porous polyurethane for use as biomaterial for cell growth support, preferably scaffold, includes polymer composition comprising hexamethylene diisocyanate biuret, and acai as source of natural and renewable polyol base

NOVELTY – Rigid foam-based porous polyurethane includes polymer composition comprising hexamethylene diisocyanate biuret (HDB), and acai as a source of natural and renewable polyol base. USE – Rigid foam-based porous polyurethane for use as a biomaterial for cell growth support, preferably scaffold (claimed). ADVANTAGE – The rigid foam-based porous polyurethane has numerous phytochemicals such as anthocyanins and flavonoids, currently considered as functional foods with potential anti-inflammatory activity, anti-oxidants and anti-thrombogenic. DETAILED DESCRIPTION – An INDEPENDENT CLAIM is included for a method for preparing rigid foam-based porous polyurethane, which involves: (A) loading diisocyanate polyol in clean and dried stationary stirrer reactor; (B) opening cooling water system for sealing shaft connecting the reactor at a stirring rate of 100 revolutions per minute; (C) loading polyol acai in the reactor; (D) purging nitrogen in the reactor; (E) raising pressure in the reactor; (F) heating the reactor at 75 degrees C; (G) reducing pressure of the reactor to remove prepolymer from the reactor bottom valve; (H) pressurizing the reactor again at 100 degrees C; and (I) reducing pressure of the reactor. DESCRIPTION OF DRAWING(S) – The drawing shows a schematic flowchart of the rigid foam-based porous polyurethane manufacturing method. (Drawing includes non-English language text).

Main Application Field

A25 (Polyurethanes; polyethers.); D22 (Sterilising, bandages, dressing and skin protection agents – including sterilising agents (other than for food), sutures, plaster casts, bioactive prostheses, contact lenses, diapers, animal litter, timber, preservatives, disinfectants, bactericidal detergents, deodorants, insect repellent compounds, moth proofers, sheep dip (A61L).); A96 (Medical, dental, veterinary, cosmetic.)

INVENTORS:

MACIEL RUBENS JR
GABRIEL LAIS PELLIZZER
DIAS CARMEN GILDA BARROSO TAVARES
DOS SANTOS DAGOBERTO JOSE
MUNHOZ ANDRE LUIZ JARDINI
ZAVAGLIA CECILIA AMELIA DE CARVALHO

535_POLIURETANO

Patent number: BR201105296-A2

PATENT STATUS:

For information contact Inova Unicamp

FOR ADDITIONAL INFORMATION:

parcerias@inova.unicamp.br

+55 (19) 3521-5207 / 2607