FI112869B - Manufacture of cellulose carbamate used as alkaline solution in, e.g. manufacture of fibers and films, by reacting cellulose and urea in mixture containing cellulose, liquid, auxiliary agent and urea, and having specified liquid content - Google Patents

Manufacture of cellulose carbamate used as alkaline solution in, e.g. manufacture of fibers and films, by reacting cellulose and urea in mixture containing cellulose, liquid, auxiliary agent and urea, and having specified liquid content

Info

Publication number
FI112869B
FI112869B FI20030027A FI20030027A FI112869B FI 112869 B FI112869 B FI 112869B FI 20030027 A FI20030027 A FI 20030027A FI 20030027 A FI20030027 A FI 20030027A FI 112869 B FI112869 B FI 112869B
Authority
FI
Finland
Prior art keywords
cellulose
urea
manufacture
liquid
auxiliary agent
Prior art date
Application number
FI20030027A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20030027A0 (en
Inventor
Kyoesti Valta
Eino Sivonen
Original Assignee
Valtion Teknillinen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valtion Teknillinen filed Critical Valtion Teknillinen
Publication of FI20030027A0 publication Critical patent/FI20030027A0/en
Priority to FI20030027A priority Critical patent/FI112869B/en
Priority to PL370745A priority patent/PL210865B1/en
Priority to EP03700823.2A priority patent/EP1470162B1/en
Priority to PCT/FI2003/000073 priority patent/WO2003064476A1/en
Priority to CA2474465A priority patent/CA2474465C/en
Priority to US10/501,950 priority patent/US7662953B2/en
Priority to JP2003564096A priority patent/JP4443931B2/en
Priority to MXPA04007256A priority patent/MXPA04007256A/en
Priority to EA200400983A priority patent/EA007626B1/en
Priority to CNB038029081A priority patent/CN1332982C/en
Priority to ES03700823.2T priority patent/ES2577386T3/en
Application granted granted Critical
Publication of FI112869B publication Critical patent/FI112869B/en

Links

Abstract

Cellulose carbamate is manufactured by absorbing auxiliary agent and urea into cellulose, and reacting cellulose and urea in a mixture containing cellulose, liquid, the auxiliary agent and urea. The mixture has a liquid content of less than 40, preferably less than 22%.
FI20030027A 2002-01-29 2003-01-08 Manufacture of cellulose carbamate used as alkaline solution in, e.g. manufacture of fibers and films, by reacting cellulose and urea in mixture containing cellulose, liquid, auxiliary agent and urea, and having specified liquid content FI112869B (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FI20030027A FI112869B (en) 2003-01-08 2003-01-08 Manufacture of cellulose carbamate used as alkaline solution in, e.g. manufacture of fibers and films, by reacting cellulose and urea in mixture containing cellulose, liquid, auxiliary agent and urea, and having specified liquid content
CA2474465A CA2474465C (en) 2002-01-29 2003-01-29 Method for manufacturing cellulose carbamate
EP03700823.2A EP1470162B1 (en) 2002-01-29 2003-01-29 Method for manufacturing cellulose carbamate
PCT/FI2003/000073 WO2003064476A1 (en) 2002-01-29 2003-01-29 Method for manufacturing cellulose carbamate
PL370745A PL210865B1 (en) 2002-01-29 2003-01-29 Method for manufacturing cellulose carbamate
US10/501,950 US7662953B2 (en) 2002-01-29 2003-01-29 Method for manufacturing cellulose carbamate
JP2003564096A JP4443931B2 (en) 2002-01-29 2003-01-29 Method for producing cellulose carbamate
MXPA04007256A MXPA04007256A (en) 2002-01-29 2003-01-29 Method for manufacturing cellulose carbamate.
EA200400983A EA007626B1 (en) 2002-01-29 2003-01-29 Method for manufacturing cellulose carbamate
CNB038029081A CN1332982C (en) 2002-01-29 2003-01-29 Method for manufacturing cellulose carbamate
ES03700823.2T ES2577386T3 (en) 2002-01-29 2003-01-29 Method for making cellulose carbamate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20030027A FI112869B (en) 2003-01-08 2003-01-08 Manufacture of cellulose carbamate used as alkaline solution in, e.g. manufacture of fibers and films, by reacting cellulose and urea in mixture containing cellulose, liquid, auxiliary agent and urea, and having specified liquid content

Publications (2)

Publication Number Publication Date
FI20030027A0 FI20030027A0 (en) 2003-01-08
FI112869B true FI112869B (en) 2004-01-30

Family

ID=8565281

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20030027A FI112869B (en) 2002-01-29 2003-01-08 Manufacture of cellulose carbamate used as alkaline solution in, e.g. manufacture of fibers and films, by reacting cellulose and urea in mixture containing cellulose, liquid, auxiliary agent and urea, and having specified liquid content

Country Status (1)

Country Link
FI (1) FI112869B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021181007A1 (en) 2020-03-09 2021-09-16 Infinited Fiber Company Oy Separation of polycotton blends
WO2022144506A1 (en) 2020-12-31 2022-07-07 Infinited Fiber Company Oy Continuous dissolution of a cellulose derivative
WO2022180309A1 (en) 2021-02-26 2022-09-01 Infinited Fiber Company Oy Method of producing cellulose carbamate
WO2023131748A1 (en) 2022-01-07 2023-07-13 Infinited Fiber Company Oy Cellulosic textile fibre
WO2023131749A1 (en) 2022-01-07 2023-07-13 Infinited Fiber Company Oy Cellulose carbamate polymer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021181007A1 (en) 2020-03-09 2021-09-16 Infinited Fiber Company Oy Separation of polycotton blends
WO2022144506A1 (en) 2020-12-31 2022-07-07 Infinited Fiber Company Oy Continuous dissolution of a cellulose derivative
WO2022180309A1 (en) 2021-02-26 2022-09-01 Infinited Fiber Company Oy Method of producing cellulose carbamate
WO2023131748A1 (en) 2022-01-07 2023-07-13 Infinited Fiber Company Oy Cellulosic textile fibre
WO2023131747A1 (en) 2022-01-07 2023-07-13 Infinited Fiber Company Oy Cellulosic textile fibre
WO2023131749A1 (en) 2022-01-07 2023-07-13 Infinited Fiber Company Oy Cellulose carbamate polymer

Also Published As

Publication number Publication date
FI20030027A0 (en) 2003-01-08

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: INFINITED FIBER COMPANY OY

PC Transfer of assignment of patent

Owner name: INFINITED FIBER COMPANY OY