US2003000662A1PendingUtilityA1
Cellulose moulded body and process for its production
Priority: Dec 22, 1995Filed: Aug 27, 2002Published: Jan 2, 2003
Est. expiryDec 22, 2015(expired)· nominal 20-yr term from priority
D01F 2/00D06L 4/50D06L 4/10
38
PatentIndex Score
0
Cited by
0
References
0
Claims
Abstract
The invention is concerned with a process for the production of cellulose molded bodies exhibiting high brightness, which is characterized by a combination of the steps of bleaching pulp using a bleaching agent, provided that the bleaching agent does not contain chlorine or any chlorine compound, dissolving the pulp bleached using the bleaching agent in an aqueous tertiary amine-oxide, a moldable cellulose solution being obtained, and processing the moldable cellulose solution into molded bodies.
Claims
exact text as granted — not AI-modified1 . A process for the production of cellulose fibres exhibiting high brightness, characterized by the combination of steps of
bleaching pulp using a bleaching agent, provided that said bleaching agent does not contain chlorine or any chlorine compound, dissolving said pulp bleached using said bleaching agent in an aqueous tertiary amine-oxide, a mouldable cellulose solution being obtained, and processing said mouldable cellulose solution into fibres.
2 . A process according to claim 1 , characterized in that said mouldable cellulose solution is processed into fibres according to the dry/wet-spinning process.
3 . A process according to claim 2 , characterized in that said fibres are bleached using a bleaching agent, provided that said bleaching agent does not contain chlorine or any chlorine compound.
4 . A process according to one of the claims 1 or 2 , characterized in that as said tertiary amine-oxide N-methylmorpholine-N-oxide is used.
5 . Use of a pulp bleached using a bleaching agent for the production of cellulose moulded bodies according to the amine-oxide process, provided that said bleaching agent does not contain chlorine or any chlorine compound.Cited by (0)
No later patents cite this yet.
References (0)
No backward citations on record.