GB1278586A - Improvements in and relating to the production of regenerated cellulose sponge material - Google Patents
Improvements in and relating to the production of regenerated cellulose sponge materialInfo
- Publication number
- GB1278586A GB1278586A GB4361868A GB4361868A GB1278586A GB 1278586 A GB1278586 A GB 1278586A GB 4361868 A GB4361868 A GB 4361868A GB 4361868 A GB4361868 A GB 4361868A GB 1278586 A GB1278586 A GB 1278586A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heating
- regenerated cellulose
- sponge
- sept
- caustic soda
- Prior art date
- 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
Links
- 239000004627 regenerated cellulose Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- 238000010438 heat treatment Methods 0.000 abstract 4
- 229920000297 Rayon Polymers 0.000 abstract 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 2
- 244000025254 Cannabis sativa Species 0.000 abstract 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 abstract 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 abstract 1
- 229920000742 Cotton Polymers 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 241000208202 Linaceae Species 0.000 abstract 1
- 235000004431 Linum usitatissimum Nutrition 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 235000009120 camo Nutrition 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 235000005607 chanvre indien Nutrition 0.000 abstract 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 abstract 1
- 239000011487 hemp Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000012991 xanthate Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Artificial Filaments (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
1278586 Regenerated cellulose sponges SPONCEL Ltd 11 Sept 1969 [13 Sept 1968] 43618/68 Headings C3A and C3C A regenerated cellulose sponge material is made from a sponge-forming viscose paste (i.e. a solution of sodium cellulose xanthate in caustic soda, sodium sulphate decahydrate, water, caustic soda and reinforcing fibres, e.g. of hemp or flax) by heating the sponge-forming viscose paste with passage of an alternating electric current therethrough until the crystals contained therein melt, discontinuing electrical heating at the point when the crystals have melted to leave a porous mass and subsequently heating the porous mass until regeneration is complete by circulating therethrough a heated liquid. The heated liquid may be an acid spray e.g. a mixture of sulphuric acid solution and sodium sulphate. The viscose paste may be extruded, prior to heating into a shined tubular cotton scrim. The electrodes carrying the current may be curved to shape the extrudate.
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4361868A GB1278586A (en) | 1968-09-13 | 1968-09-13 | Improvements in and relating to the production of regenerated cellulose sponge material |
| NL6913802A NL161393C (en) | 1968-09-13 | 1969-09-10 | PROCESS FOR PREPARING SPONGEOUS MATERIAL OF REGENERATED CELLULOSE FROM A SPONGE-FORMING VISCOSE PASTE, CONTAINING WATER-SOLUBLE MELTABLE CRYSTALS AS PORES-FORMING SUBSTANCE. |
| AT865369A AT299549B (en) | 1968-09-13 | 1969-09-11 | Process for the production of a spongy material from regenerated cellulose |
| SE1253269A SE360874B (en) | 1968-09-13 | 1969-09-11 | |
| BE738828D BE738828A (en) | 1968-09-13 | 1969-09-12 | |
| NO364769A NO132048C (en) | 1968-09-13 | 1969-09-12 | |
| DE19691946392 DE1946392C (en) | 1968-09-13 | 1969-09-12 | Process for the production of regenerated Celhilose sponge material |
| CH1381569A CH494108A (en) | 1968-09-13 | 1969-09-12 | Process for the production of sponges from regenerated cellulose |
| IE128269A IE33559B1 (en) | 1968-09-13 | 1969-09-12 | Improvements in and relating to the production of regenerated cellulose sponge material |
| ES371447A ES371447A1 (en) | 1968-09-13 | 1969-09-12 | Improvements in and relating to the production of regenerated cellulose sponge material |
| FI261769A FI51104C (en) | 1968-09-13 | 1969-09-12 | A process for preparing a spongy substance of regenerated cellulose. |
| FR6931300A FR2018090A1 (en) | 1968-09-13 | 1969-09-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4361868A GB1278586A (en) | 1968-09-13 | 1968-09-13 | Improvements in and relating to the production of regenerated cellulose sponge material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1278586A true GB1278586A (en) | 1972-06-21 |
Family
ID=10429563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4361868A Expired GB1278586A (en) | 1968-09-13 | 1968-09-13 | Improvements in and relating to the production of regenerated cellulose sponge material |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT299549B (en) |
| BE (1) | BE738828A (en) |
| CH (1) | CH494108A (en) |
| ES (1) | ES371447A1 (en) |
| FI (1) | FI51104C (en) |
| FR (1) | FR2018090A1 (en) |
| GB (1) | GB1278586A (en) |
| IE (1) | IE33559B1 (en) |
| NL (1) | NL161393C (en) |
| NO (1) | NO132048C (en) |
| SE (1) | SE360874B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014201479A1 (en) | 2013-06-19 | 2014-12-24 | Lenzing Ag | New environmentally friendly method for producing sponges and sponge cloths from polysaccharides |
-
1968
- 1968-09-13 GB GB4361868A patent/GB1278586A/en not_active Expired
-
1969
- 1969-09-10 NL NL6913802A patent/NL161393C/en active
- 1969-09-11 SE SE1253269A patent/SE360874B/xx unknown
- 1969-09-11 AT AT865369A patent/AT299549B/en not_active IP Right Cessation
- 1969-09-12 ES ES371447A patent/ES371447A1/en not_active Expired
- 1969-09-12 FI FI261769A patent/FI51104C/en active
- 1969-09-12 NO NO364769A patent/NO132048C/no unknown
- 1969-09-12 BE BE738828D patent/BE738828A/xx unknown
- 1969-09-12 IE IE128269A patent/IE33559B1/en unknown
- 1969-09-12 CH CH1381569A patent/CH494108A/en not_active IP Right Cessation
- 1969-09-15 FR FR6931300A patent/FR2018090A1/fr not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014201479A1 (en) | 2013-06-19 | 2014-12-24 | Lenzing Ag | New environmentally friendly method for producing sponges and sponge cloths from polysaccharides |
Also Published As
| Publication number | Publication date |
|---|---|
| SE360874B (en) | 1973-10-08 |
| BE738828A (en) | 1970-02-16 |
| NO132048C (en) | 1975-09-10 |
| CH494108A (en) | 1970-07-31 |
| ES371447A1 (en) | 1971-10-16 |
| DE1946392A1 (en) | 1970-03-19 |
| NL161393C (en) | 1980-02-15 |
| IE33559B1 (en) | 1974-08-07 |
| FR2018090A1 (en) | 1970-05-29 |
| NO132048B (en) | 1975-06-02 |
| IE33559L (en) | 1970-03-13 |
| AT299549B (en) | 1972-06-26 |
| NL161393B (en) | 1979-09-17 |
| NL6913802A (en) | 1970-03-17 |
| FI51104C (en) | 1976-10-11 |
| FI51104B (en) | 1976-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |