GB554838A - Improvements in or relating to methods of obtaining industrially useful products from material, preferably scrap or waste material, comprising a fibrous base charged with a cellulose derivative or to products which may be obtained from such material - Google Patents

Improvements in or relating to methods of obtaining industrially useful products from material, preferably scrap or waste material, comprising a fibrous base charged with a cellulose derivative or to products which may be obtained from such material

Info

Publication number
GB554838A
GB554838A GB71842A GB71842A GB554838A GB 554838 A GB554838 A GB 554838A GB 71842 A GB71842 A GB 71842A GB 71842 A GB71842 A GB 71842A GB 554838 A GB554838 A GB 554838A
Authority
GB
United Kingdom
Prior art keywords
cellulose
fibres
treatment
products
acid
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
GB71842A
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.)
Noxet UK Ltd
Original Assignee
British United Shoe Machinery 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 British United Shoe Machinery Ltd filed Critical British United Shoe Machinery Ltd
Priority to GB71842A priority Critical patent/GB554838A/en
Publication of GB554838A publication Critical patent/GB554838A/en
Expired legal-status Critical Current

Links

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
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

554,838. Cellulose derivatives and compositions. BRITISH UNITED SHOE MACHINERY CO., Ltd., and MACDONALD, D. B. Jan. 17, 1942, No. 718. [Class 2 (ii)] Fibrous sheet material, particularly scrap or waste material, comprising cellulosic or wool fibres and impregnated with a cellulose ester or ether in precipitated or porous condition is subjected to treatment with a dilute acid or other degrading agent so as to reduce or destroy the strength of the fibres, and the material is then crumbled, shredded or otherwise reduced to comminuted condition. The treatment is such that the cellulose derivative is substantially unaffected. The comminuted material may be treated with a solvent for the cellulose derivative and a solution or plastic may be obtained in which the comminuted fibres serve as a binder or filler. The solutions or plastics may be used for making films, coatings, paints, cements, stiffened fabric or paper sheets, shoe stiffeners, or fillings for the bottom cavities of shoes. The material to be treated may be waste cuttings from cotton cloth charged with cellulose nitrate in precipitated or porous condition, such material being obtained when cutting out shoe toe puffs and other shaped parts. Cloth, felt, or paper materials charged with cellulose derivatives may be treated. Dilute sulphuric, hydrochloric, or nitric acid may be used as degrading agent. In the case of cellulose fibres, the cellulose is probably converted into hydrocellulose or oxycellulose. Sulphuric acid of 3-4 per cent. strength by volume or nitric acid of about 5 per cent. by volume may be used. The treatment may be carried out at raised temperature. The extent of the treatment and the grinding are varied according to the desired state of subdivision of the fibres which may be obtained as a fine powder or as short fibres of say one-eighth of an inch. After the acid treatment the material is preferably washed and dried. Specifications 117,068, [Class 15 (ii)], 143,310, [Class 140], 344,510, 390,290, 469,014, [Group VII], 507,138, and 524,415 are referred to.
GB71842A 1942-01-17 1942-01-17 Improvements in or relating to methods of obtaining industrially useful products from material, preferably scrap or waste material, comprising a fibrous base charged with a cellulose derivative or to products which may be obtained from such material Expired GB554838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB71842A GB554838A (en) 1942-01-17 1942-01-17 Improvements in or relating to methods of obtaining industrially useful products from material, preferably scrap or waste material, comprising a fibrous base charged with a cellulose derivative or to products which may be obtained from such material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB71842A GB554838A (en) 1942-01-17 1942-01-17 Improvements in or relating to methods of obtaining industrially useful products from material, preferably scrap or waste material, comprising a fibrous base charged with a cellulose derivative or to products which may be obtained from such material

Publications (1)

Publication Number Publication Date
GB554838A true GB554838A (en) 1943-07-21

Family

ID=9709313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB71842A Expired GB554838A (en) 1942-01-17 1942-01-17 Improvements in or relating to methods of obtaining industrially useful products from material, preferably scrap or waste material, comprising a fibrous base charged with a cellulose derivative or to products which may be obtained from such material

Country Status (1)

Country Link
GB (1) GB554838A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023005074A1 (en) * 2021-07-27 2023-02-02 湖州市菱湖新望化学有限公司 Method for producing powdered cellulose

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023005074A1 (en) * 2021-07-27 2023-02-02 湖州市菱湖新望化学有限公司 Method for producing powdered cellulose

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