Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ
Patent
1996-10-15
1998-07-21
Fortuna, Ana
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
2105003, 21050029, 21050031, 21050032, 26417714, 264178R, 264200, 26421114, B01D 3321
Patent
active
057831246
ABSTRACT:
A cellulose acetate membrane composed of a mixture comprising a cellulose triacetate and a cellulose diacetate and having an improved heat stability, which does not substantially show a melting peak of cellulose diacetate but substantially shows a melting peak of cellulose triacetate, in a differential thermal analysis. By mixing a cellulose triacetate and a cellulose diacetate at an appropriate ratio, crystallization or orientational crystallization of each component due to a high pressure stream sterilization can be avoided and a cellulose acetate membrane with improved water permeability and sieving coefficient of myoglobin after a high pressure steam sterilization can be obtained.
REFERENCES:
patent: 3724672 (1973-04-01), Leonard et al.
patent: 4147622 (1979-04-01), Nussbaumer et al.
patent: 4171987 (1979-10-01), Horiguch et al.
patent: 4234528 (1980-11-01), Nussbaumer et al.
patent: 4244824 (1981-01-01), Lange et al.
patent: 4253963 (1981-03-01), Franken et al.
patent: 4276173 (1981-06-01), Kell et al.
patent: 4340428 (1982-07-01), Boeddeker et al.
patent: 4543221 (1985-09-01), Chen et al.
patent: 4681713 (1987-07-01), Miyagi et al.
patent: 4744932 (1988-05-01), Browne
patent: 4772394 (1988-09-01), Swedo et al.
patent: 4830885 (1989-05-01), Tran et al.
patent: 4950404 (1990-08-01), Chau
patent: 4980061 (1990-12-01), Tadros et al.
patent: 4980063 (1990-12-01), Mahoney et al.
patent: 5063009 (1991-11-01), Mizutani et al.
patent: 5192440 (1993-03-01), von Sengbusch
patent: 5211849 (1993-05-01), Kitaevich et al.
patent: 5624561 (1997-04-01), Uenishi et al.
Okamoto Kazutake
Sakurai Hidehiko
Sato Hideo
Shiota Yasuhiro
Suzuki Mitsuru
Fortuna Ana
Toyo Boseki Kabushiki Kaisha
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