GB338698A - - Google Patents

Info

Publication number
GB338698A
GB338698A GB32518/29A GB3251829A GB338698A GB 338698 A GB338698 A GB 338698A GB 32518/29 A GB32518/29 A GB 32518/29A GB 3251829 A GB3251829 A GB 3251829A GB 338698 A GB338698 A GB 338698A
Authority
GB
United Kingdom
Prior art keywords
latex
acid
added
colloidal
substance
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
GB32518/29A
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DEB119491D external-priority patent/DE437172C/en
Application filed by Individual filed Critical Individual
Publication of GB338698A publication Critical patent/GB338698A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00—Treatment of rubber latex
    • C08C1/14—Coagulation
    • C08C1/15—Coagulation characterised by the coagulants used
    • 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
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B13/00—Diaphragms; Spacing elements
    • 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
    • C08J2321/00—Characterised by the use of unspecified rubbers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

338,698. Beckmann, H. Oct. 26, 1928, [Convention date]. Addition to 240,430. Latex, coagulating; porous indiarubber.-The process for producing micro-porous rubber described in the parent Specification is modified by adding to the latex a substance capable of being coagulated to form an hydrophilic gel, and then treating the mixture with a coagulating agent adapted to coagulate both the latex and the additional substance. The resulting gel is then vulcanized. Suitable colloid substances are silicic acid, stannic acid, aluminium hydroxide, colloidal ferric oxide, colloidal chromic oxide, colloidal tungstic and molybdic acid, manganic hydroxide, vanadium pentoxide, tetanic acid, albuminoids, polypeptides and haemoglobin. The substance need not be added as such but may be formed in the latex by reaction, for instance silicic acid may be introduced as sodium silicate. In an example, 2 per cent of blood albumen, calculated on the rubber content, is dissolved in water and added to latex in addition to the usual agents. Acetic acid is added and the mass is spread out in the desired shape or mould whereupon coagulation takes place. Specification 309,575 is referred to.
GB32518/29A 1924-09-27 1929-10-25 Expired GB338698A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE425770T 1924-09-27
DEB119491D DE437172C (en) 1925-04-29 1925-04-29 Process for the production of rubber with a large number of microscopic pores
DE442619T 1925-06-25
DE439980T 1925-09-01
DE623943T 1928-10-26
DE561568T 1928-12-24
DE556904T 1929-05-03

Publications (1)

Publication Number Publication Date
GB338698A true GB338698A (en) 1930-11-27

Family

ID=31950948

Family Applications (4)

Application Number Title Priority Date Filing Date
GB21973/25A Expired GB262179A (en) 1924-09-27 1925-09-02 Improvements relating to a process for the production of rubber
GB19198/26A Expired GB257561A (en) 1924-09-27 1926-08-03 Process for the manufacture of rubber with innumerable microscopically small pores
GB32518/29A Expired GB338698A (en) 1924-09-27 1929-10-25
GB13493/30A Expired GB346588A (en) 1924-09-27 1930-05-01 Process for the production of microporous rubber

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB21973/25A Expired GB262179A (en) 1924-09-27 1925-09-02 Improvements relating to a process for the production of rubber
GB19198/26A Expired GB257561A (en) 1924-09-27 1926-08-03 Process for the manufacture of rubber with innumerable microscopically small pores

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB13493/30A Expired GB346588A (en) 1924-09-27 1930-05-01 Process for the production of microporous rubber

Country Status (4)

Country Link
BE (2) BE335911A (en)
DE (1) DE425770C (en)
FR (4) FR606989A (en)
GB (4) GB262179A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585143A (en) * 1952-02-12 Latex foam stabilized with ethyl

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB482858A (en) * 1936-07-25 1938-04-06 Int Latex Processes Ltd Anode for lead electric storage battery and process for manufacturing same
DE745525C (en) * 1937-01-09 1944-03-13 Ig Farbenindustrie Ag Use of fabrics, felts, fleeces or loose layers of synthetic threads for filtering purposes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585143A (en) * 1952-02-12 Latex foam stabilized with ethyl

Also Published As

Publication number Publication date
BE335911A (en)
FR38424E (en) 1931-06-03
FR37521E (en) 1930-12-20
BE328056A (en)
DE425770C (en) 1926-02-24
GB257561A (en) 1926-09-02
FR606989A (en) 1926-06-23
FR32422E (en) 1927-11-29
GB262179A (en) 1926-12-02
GB346588A (en) 1931-04-16

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