| Patent Number |
Title Of Patent |
Date Issued |
| 6241933 |
Process for the treatment of cellulosic moulded bodies |
June 5, 2001 |
| The invention relates to a process for the treatment of cellulosic moulded bodies which are formed from a solution of cellulose in an aqueous tertiary amine oxide, particularly fibers, whereby the moulded bodies are brought into contact with an aqueous solution of a textile auxiliary age |
| 6241927 |
Method of producing cellulose fibers |
June 5, 2001 |
| The invention relates to a method of producing lyocell-type cellulose fibers by processing a spinnable solution of cellulose in an aqueous tertiary amine oxide according to the dry/wet-spinning process, which method is characterized in that a solution having a content of between 0.05 |
| 5919412 |
Cellulose fibre |
July 6, 1999 |
| The invention is an amine-oxide process for the production of a cellulose moulded body, wherein a suspension of cellulose in an aqueous tertiary amine-oxide is converted into a cellulose solution which is moulded and passed through an aqueous precipitation bath. A moulded body is obtaine |
| 5858285 |
Process for the production of an aqueous solution of a tertiary amine-oxide |
January 12, 1999 |
| The invention is concerned with a process for the production of an aqueous amine-oxide solution used in the amine-oxide process for the production of a mouldable cellulose solution, wherein aqueous, amine-oxide containing solutions produced in said amine-oxide process particularly as |
| 5795522 |
Cellulose fibre |
August 18, 1998 |
| This invention relates to a process for the production of a cellulose molded body according to the amine-oxide process, which results in a molded body having reduced and effectively controllable fibrillation properties. |
| 5788939 |
Process for the production of a cellulose moulded body |
August 4, 1998 |
| A process for the production of a cellulose moulded body, particularly cellulose fibers, wherein a cellulose-containing material is introduced into an aqueous solution of a tertiary amine-oxide to suspend said cellulose-containing material, water is withdrawn from the suspension whil |
| 5773655 |
Process for the purification of an aqueous solution of a tertiary amine-oxide |
June 30, 1998 |
| The invention is concerned with a process for the purification of an aqueous solution of a tertiary amine-oxide containing impurities partially present in a dissolved and partially in a non-dissolved, colloidal state, and is characterized by a combination of the steps of(A) removing from |
| 5628941 |
Process for the production of cellulose moulded bodies |
May 13, 1997 |
| The invention is concerned with a process for the production of cellulose moulded bodies. In this process, cellulose is first dissolved in an aqueous solution of a tertiary amine-oxide, in particular N-methylmorpholine-N-oxide (NMMO), to produce a mouldable cellulose solution. Second |
| 5602247 |
Process for the purification of aqueous solutions of tertiary amine-oxides |
February 11, 1997 |
| The invention is concerned with a process for the production of cellulose molded bodies. This process has the following steps:(A) dissolving cellulose in an aqueous solution of a tertiary amine-oxide to produce a moldable cellulose solution,(B) molding said cellulose solution and conducting |
