GB331563A - Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances - Google Patents

Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances

Info

Publication number
GB331563A
GB331563A GB4095/29A GB409529A GB331563A GB 331563 A GB331563 A GB 331563A GB 4095/29 A GB4095/29 A GB 4095/29A GB 409529 A GB409529 A GB 409529A GB 331563 A GB331563 A GB 331563A
Authority
GB
United Kingdom
Prior art keywords
rubber
dispersion
particles
ion concentration
hydrogen ion
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
GB4095/29A
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co 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
Priority claimed from GB19643/27A external-priority patent/GB301100A/en
Priority to US284014A priority Critical patent/US1910579A/en
Priority to FR657948D priority patent/FR657948A/en
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB4095/29A priority patent/GB331563A/en
Priority to GB17342/29A priority patent/GB334581A/en
Publication of GB331563A publication Critical patent/GB331563A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4403—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with rubbers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

331,563. Dunlop Rubber Co., Ltd., Twiss, D. F., and James, R. G. Feb. 7, 1929. Addition to 301,100. Emulsions, making.-In a dispersion of rubber or other organic material the particles of which normally carry a negative charge, the hydrogen ion concentration is increased in the presence of suitable protective colloids to such a degree that the charge on the particles is reversed without coagulation occurring. The hydrogen ion concentration may be one corresponding to a pH value between 5 and 0. Suitable protective colloids are casein, haemoglobin, saponin, egg albumen and similar proteids, gelatine and liquorice. Sodium methylene naphthalene' sulphonate and similar complex sulphonates are not effective. In an example 100 c.c. of latex free from ammonia containing 60 per cent rubber is diluted with 120 c.c. of a faintly alkaline 1 per cent solution of casein. A mixture of 50 c.c. glacial acetic acid and 50 c.c. water is then added, bringing the pH value of the latex to 2.7. Formic acid may be used as acidifying agent. The aqueous dispersion may be of rubber, guttapercha, balata or analogous vegetable resins and may contain vulcanizing and compounding ingredients and may be in a preserved or concentrated state, and may be natural or artificial, or obtained from rubber reclaim or synthetic rubber. A sulphur dispersion the particles of which travel to the cathode may be incorporated with the rubber dispersion. When ammonia-preserved latex is employed it may be aerated to reduce the ammonia-content before increasing the hydrogen ion concentration. It may also be diluted before or after aeration.
GB4095/29A 1927-07-25 1929-02-07 Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances Expired GB331563A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US284014A US1910579A (en) 1927-07-25 1928-06-08 Process for the cathodic deposition of rubber dispersions
FR657948D FR657948A (en) 1927-07-25 1928-07-21 Process for producing coherent deposits, starting from aqueous dispersions of rubber or substances of the nature of rubber, by means of electric current
GB4095/29A GB331563A (en) 1927-07-25 1929-02-07 Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances
GB17342/29A GB334581A (en) 1927-07-25 1929-06-06 Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB657948X 1927-07-25
GB19643/27A GB301100A (en) 1927-07-25 1927-07-25 Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances
GB549219X 1927-07-25
GB567033X 1929-02-07
GB4095/29A GB331563A (en) 1927-07-25 1929-02-07 Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances

Publications (1)

Publication Number Publication Date
GB331563A true GB331563A (en) 1930-07-07

Family

ID=32398313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4095/29A Expired GB331563A (en) 1927-07-25 1929-02-07 Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances

Country Status (1)

Country Link
GB (1) GB331563A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449235A (en) * 1963-07-01 1969-06-10 Philippe Burnel Apparatus for electrodeposition on a tubular fabric

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449235A (en) * 1963-07-01 1969-06-10 Philippe Burnel Apparatus for electrodeposition on a tubular fabric

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