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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 material

Info

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
Application number
GB4361868A
Inventor
Tom Martin Morgan
John Dewi Mainwaring
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.)
Sponcel Ltd
Original Assignee
Sponcel Ltd
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 Sponcel Ltd filed Critical Sponcel Ltd
Priority to GB4361868A priority Critical patent/GB1278586A/en
Priority to NL6913802A priority patent/NL161393C/en
Priority to SE1253269A priority patent/SE360874B/xx
Priority to AT865369A priority patent/AT299549B/en
Priority to FI261769A priority patent/FI51104C/en
Priority to BE738828D priority patent/BE738828A/xx
Priority to CH1381569A priority patent/CH494108A/en
Priority to ES371447A priority patent/ES371447A1/en
Priority to DE19691946392 priority patent/DE1946392C/en
Priority to NO364769A priority patent/NO132048C/no
Priority to IE128269A priority patent/IE33559B1/en
Priority to FR6931300A priority patent/FR2018090A1/fr
Publication of GB1278586A publication Critical patent/GB1278586A/en
Expired legal-status Critical Current

Links

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)
  • Manufacture And Refinement Of Metals (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Artificial Filaments (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.
GB4361868A 1968-09-13 1968-09-13 Improvements in and relating to the production of regenerated cellulose sponge material Expired GB1278586A (en)

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.
SE1253269A SE360874B (en) 1968-09-13 1969-09-11
AT865369A AT299549B (en) 1968-09-13 1969-09-11 Process for the production of a spongy material from regenerated cellulose
FI261769A FI51104C (en) 1968-09-13 1969-09-12 A process for preparing a spongy substance of regenerated cellulose.
BE738828D BE738828A (en) 1968-09-13 1969-09-12
CH1381569A CH494108A (en) 1968-09-13 1969-09-12 Process for the production of sponges from regenerated cellulose
ES371447A ES371447A1 (en) 1968-09-13 1969-09-12 Improvements in and relating to the production of regenerated cellulose sponge material
DE19691946392 DE1946392C (en) 1968-09-13 1969-09-12 Process for the production of regenerated Celhilose sponge material
NO364769A NO132048C (en) 1968-09-13 1969-09-12
IE128269A IE33559B1 (en) 1968-09-13 1969-09-12 Improvements in and relating to the production of regenerated cellulose sponge material
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
BE738828A (en) 1970-02-16
NO132048B (en) 1975-06-02
NL161393B (en) 1979-09-17
FI51104C (en) 1976-10-11
NO132048C (en) 1975-09-10
DE1946392A1 (en) 1970-03-19
FR2018090A1 (en) 1970-05-29
FI51104B (en) 1976-06-30
IE33559L (en) 1970-03-13
NL161393C (en) 1980-02-15
AT299549B (en) 1972-06-26
CH494108A (en) 1970-07-31
NL6913802A (en) 1970-03-17
SE360874B (en) 1973-10-08
IE33559B1 (en) 1974-08-07
ES371447A1 (en) 1971-10-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee