Patent ID: 6011110
Filing Date: 2000-01-04
Classification: C02F,C08G,C12N,Y02W,Y10S

Abstract:
A bioreactor carrier which is a thermoplastic organic polymer having a swelling rate of volume in water of 150 to 4,000%, wherein the thermoplastic organic polymer is a polyurethane water-absorptive gel obtained by reacting long-chain and short-chain diols and an isocyanate compound, said long-chain diol being a water-soluble ethylene oxide-propylene oxide copolymer having two terminal hydroxy groups per molecule, or polyethylene glycol with an ethylene oxide content of 70% or greater, said long-chain diol having a number-average molecular weight between 1,000 and 13,000, said short-chain diol having two terminal hydroxy groups per molecule and a number-average molecular weight between 30 and 400 and the reaction mole ratio of NCO/OH being in the range of 0.95-1.8.