GB1459724A – Method for the cold-milling of cellulose derivatives process for the production of azo compounds
– Google Patents
GB1459724A – Method for the cold-milling of cellulose derivatives process for the production of azo compounds
– Google Patents
Method for the cold-milling of cellulose derivatives process for the production of azo compounds
Info
Publication number
GB1459724A
GB1459724A
GB935775A
GB935775A
GB1459724A
GB 1459724 A
GB1459724 A
GB 1459724A
GB 935775 A
GB935775 A
GB 935775A
GB 935775 A
GB935775 A
GB 935775A
GB 1459724 A
GB1459724 A
GB 1459724A
Authority
GB
United Kingdom
Prior art keywords
milling
cold
cellulose
water
cellulose derivatives
Prior art date
1974-03-07
Legal status (The legal status 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 status listed.)
Expired
Application number
GB935775A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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.)
1974-03-07
Filing date
1975-03-06
Publication date
1976-12-31
1975-03-06
Application filed by Hoechst AG
filed
Critical
Hoechst AG
1976-12-31
Publication of GB1459724A
publication
Critical
patent/GB1459724A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J3/00—Processes of treating or compounding macromolecular substances
C08J3/12—Powdering or granulating
B—PERFORMING OPERATIONS; TRANSPORTING
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
B29B13/00—Conditioning or physical treatment of the material to be shaped
B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
C08J2301/08—Cellulose derivatives
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S241/00—Solid material comminution or disintegration
Y10S241/37—Cryogenic cooling
Abstract
1459724 Cold-milling of cellulose derivatives HOECHST AG 6 March 1975 [7 March 1974] 9357/75 Heading C3A Particles of a cellulose derivative, preferably methyl cellulose, are formed by cold-milling the derivative when it contains from 40 to 150% of water based on its dry weight. The temperature of the cellulose derivative must be such that it is brittle, that is below the glass transition temperature of its amorphous regions. The cellulose derivative must be either watersoluble or water-swellable and must also be able to absorb more than 150% by weight of water at 20 C. The preferred coolant is liquid nitrogen. If preferred, the cellulose derivative may be densified before milling and the milled product is preferably dried to a water content of 10%.
GB935775A
1974-03-07
1975-03-06
Method for the cold-milling of cellulose derivatives process for the production of azo compounds
Expired
GB1459724A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2410789A
DE2410789C2
(en)
1974-03-07
1974-03-07
Process for cold grinding of cellulose derivatives
Publications (1)
Publication Number
Publication Date
GB1459724A
true
GB1459724A
(en)
1976-12-31
Family
ID=5909295
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB935775A
Expired
GB1459724A
(en)
1974-03-07
1975-03-06
Method for the cold-milling of cellulose derivatives process for the production of azo compounds
Country Status (9)
Country
Link
US
(1)
US4044198A
(en)
JP
(1)
JPS50121859A
(en)
BE
(1)
BE826274A
(en)
CA
(1)
CA1067055A
(en)
DE
(1)
DE2410789C2
(en)
FR
(1)
FR2263035B1
(en)
GB
(1)
GB1459724A
(en)
NL
(1)
NL168534C
(en)
SE
(1)
SE406595B
(en)
Families Citing this family (15)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4329451A
(en)
*
1980-11-03
1982-05-11
The Dow Chemical Company
Preparing an aqueous dispersion of colloidal size particles of a water-insoluble polysaccharide derivative
US4474949A
(en)
*
1983-05-06
1984-10-02
Personal Products Company
Freeze dried microfibrilar cellulose
DE3839831A1
(en)
*
1988-11-25
1990-05-31
Hoechst Ag
METHOD AND DEVICE FOR PRODUCT-FRIENDLY GRINDING AND SIMULTANEOUS DRYING OF DAMP CELLULOSE ETHERS
DE19641781A1
(en)
*
1996-10-10
1998-04-16
Clariant Gmbh
Method and device for the simultaneous grinding and drying of a ground material containing moist cellulose ether
DE10009411A1
(en)
*
2000-02-28
2001-08-30
Wolff Walsrode Ag
Process for the preparation of pulverulent water-soluble cellulose derivatives using a steam / inert gas mixture or steam / air mixture as transport and heat transfer gas
DE10009409A1
(en)
2000-02-28
2001-08-30
Wolff Walsrode Ag
Production of water-soluble cellulose derivatives as fine powder, for use as e.g. paint binders or thickeners, involves dissolution or swelling in water and drying with heat transfer-carrier gas in a high-speed rotary impact mill
US7648962B2
(en)
*
2002-11-26
2010-01-19
Biocon Limited
Natriuretic compounds, conjugates, and uses thereof
JP2004269511A
(en)
*
2003-02-18
2004-09-30
Shin Etsu Chem Co Ltd
Skin or hair care cosmetic composition
DE102004020686B3
(en)
2004-04-28
2006-01-05
Se Tylose Gmbh & Co. Kg
Method and apparatus for grinding cellulose
DE102005004893B4
(en)
*
2005-02-03
2011-02-10
Dow Global Technologies Inc., Midland
Process for shaping cellulose ethers
FI120625B
(en)
*
2005-08-17
2009-12-31
Valtion Teknillinen
Starch based fiber web filler and coating pigment composition and process for its manufacture
US20110282050A1
(en)
*
2007-01-24
2011-11-17
Merz Gunnar R
Method of preparing alkali cellulose or a cellulose derivative
US7900857B2
(en)
2008-07-17
2011-03-08
Xyleco, Inc.
Cooling and processing materials
WO2011046679A1
(en)
*
2009-10-14
2011-04-21
Dow Global Technologies Inc.
A process for dry-grinding a polysaccharide derivative
MX2016013830A
(en)
*
2015-10-27
2017-05-10
Shinetsu Chemical Co
Methods and apparatus to analyze and adjust age demographic information.
Family Cites Families (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2057163A
(en)
*
1934-06-16
1936-10-13
Brown Co
Preparation of solutions of hydroxy-cellulose ethers
US2288200A
(en)
*
1937-05-15
1942-06-30
Meyer Georg
Process for the production of water-soluble cellulose ethers in powder form
US2160106A
(en)
*
1937-05-27
1939-05-30
Du Pont
Process of dissolving alkali soluble cellulose derivatives
US2331864A
(en)
*
1942-03-20
1943-10-12
Dow Chemical Co
Method of preparing powdered cellulose ethers quickly soluble in cold water
US2331865A
(en)
*
1942-03-20
1943-10-12
Dow Chemical Co
Method of preparing cold-watersoluble powdered cellulose ethers
US2833758A
(en)
*
1952-04-05
1958-05-06
Henkel & Cie Gmbh
Method of producing rapidly soluble cellulose ether powders
US3251824A
(en)
*
1961-08-22
1966-05-17
Fmc Corp
Method of preparing stable aqueous dispersion-forming cellulosic aggregates
US3428584A
(en)
*
1965-07-15
1969-02-18
Gulf General Atomic Inc
Freeze-dried membrane and method of treating same
1974
1974-03-07
DE
DE2410789A
patent/DE2410789C2/en
not_active
Expired
1974-05-02
NL
NLAANVRAGE7405907,A
patent/NL168534C/en
not_active
IP Right Cessation
1975
1975-02-28
SE
SE7502297A
patent/SE406595B/en
unknown
1975-03-03
JP
JP50025857A
patent/JPS50121859A/ja
active
Pending
1975-03-04
FR
FR7506660A
patent/FR2263035B1/fr
not_active
Expired
1975-03-04
BE
BE153989A
patent/BE826274A/en
unknown
1975-03-05
CA
CA221,298A
patent/CA1067055A/en
not_active
Expired
1975-03-06
US
US05/556,053
patent/US4044198A/en
not_active
Expired – Lifetime
1975-03-06
GB
GB935775A
patent/GB1459724A/en
not_active
Expired
Also Published As
Publication number
Publication date
NL7405907A
(en)
1975-09-09
FR2263035A1
(en)
1975-10-03
SE7502297L
(en)
1975-09-08
SE406595B
(en)
1979-02-19
BE826274A
(en)
1975-09-04
FR2263035B1
(en)
1979-08-24
CA1067055A
(en)
1979-11-27
DE2410789B1
(en)
1975-09-11
US4044198A
(en)
1977-08-23
JPS50121859A
(en)
1975-09-25
NL168534C
(en)
1982-04-16
NL168534B
(en)
1981-11-16
DE2410789C2
(en)
1980-08-07
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Legal Events
Date
Code
Title
Description
1977-05-11
PS
Patent sealed [section 19, patents act 1949]
1983-10-19
PCNP
Patent ceased through non-payment of renewal fee
