Process for the stabilization of the properties of cellulosic me

Details Process for the stabilization of the properties of cellulosic me Process for the stabilization of the properties of cellulosic me

1997-02-26

1998-12-29

Fortuna, Ana

Plastic and nonmetallic article shaping or treating: processes

Treating shaped or solid article

By a temperature change

21050023, 21050029, 2105003, 21050031, 264342RE, 264342R, B29B 1700, B01D 3321, B01D 3900

Patent

active

058536477

ABSTRACT:
Properties of cellulosic membranes such as the length and the ultrafiltration rate are stabilized by warmth/humidity conditioning, whereby temperatures in a range of about 30.degree. to 60.degree. C. and relative humidities in a range of about 10 to 60% are suitable. The membranes may be enveloped at a relative humidity of about 40 to 60% and at about 20.degree. to 25.degree. C. in a packaging which is at least substantially impermeable to the passage of moisture before being subjected to the conditioning.

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to DD 131941).
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Chemical Abstract No. 103:56070 CA (English-language corresponding to JP 60 058210).
Derwent Abstract AN 85-118693 (English Abstract corresponding to JP 60 058210).

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