Process for treating compressed cellulose and applications there

Details Process for treating compressed cellulose and applications there Process for treating compressed cellulose and applications there

1993-01-21

1995-12-05

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using direct contact steam to disinfect or sterilize

8120, 8125, 8490, A61L 206, D06M 13184, D06P 502

Patent

active

054726654

ABSTRACT:
A method for removing impurities and potentially toxic substances from cellulose is disclosed. The method comprises the following steps: (a) immersing cellulose containing organic extractables in one or more acid baths so as to remove traces of organic extractables; (b) immersing the cellulose in a water bath; (c) immersing the compressed cellulose in an alkaline bath; and (d) sterilizing the treated cellulose using pressurized steam.

REFERENCES:
patent: D270972 (1983-10-01), Rosofsky
patent: 3328178 (1967-06-01), Alderton
patent: 3332833 (1967-07-01), Guthrie
patent: 3634183 (1970-05-01), Viola et al.
patent: 4076500 (1978-02-01), Rearick
patent: 4165743 (1979-08-01), Denning
patent: 4312634 (1982-01-01), Katz
patent: 4486109 (1984-12-01), Rosofsky
patent: 4506988 (1985-04-01), Reed
patent: 4543679 (1985-10-01), Rosofsky et al.
patent: 4608968 (1986-09-01), Rosofsky
patent: 4817333 (1989-04-01), Szepessy et al.
Block, Seymour S. Disinfection, Sterilization, and Preservation, 1983, pp. 1 and 14.

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