GB397270A - Improvements in or relating to the provision of articles with a smooth matt finish - Google Patents

Improvements in or relating to the provision of articles with a smooth matt finish

Info

Publication number
GB397270A
GB397270A GB1520332A GB1520332A GB397270A GB 397270 A GB397270 A GB 397270A GB 1520332 A GB1520332 A GB 1520332A GB 1520332 A GB1520332 A GB 1520332A GB 397270 A GB397270 A GB 397270A
Authority
GB
United Kingdom
Prior art keywords
per cent
starch
parts
diluted
flocculent precipitate
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
GB1520332A
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
Anode 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
Application filed by Dunlop Rubber Co Ltd, Anode Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB1520332A priority Critical patent/GB397270A/en
Publication of GB397270A publication Critical patent/GB397270A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Articles are given a smooth matt finish by treating their surfaces with a flocculent precipitate of rubber obtained from an aqueous dispersion thereof, admixed with starch. The flucculent precipitate may be obtained by known means such as the use of coagulants or dilute dispersions, and may be made before or after the addition of the starch. According to an example, 100 parts of a 60 per cent latex are diluted to 5 per cent; a 5 per cent solution containing 120 parts of sodium silicate, and then a 5 per cent solution containing 96 parts of aluminium sulphate are stirred in: a flocculent precipitate is formed. This is drained on a filter plate until a mass containing 16-17 per cent solids results. A weight of starch equal to that or the solids is ground in until a smooth cream is obtained. This may be diluted as required. Vulcanizing, compounding, &c. ingredients may be added. Specifications 219,635 and 290,313, [both in Class 70, Indiarubber &c.], are referred to.ALSO:Articles, particularly those of, or containing rubber, are given a smooth matt finish, by coating their surfaces with a flocculent precipitate of rubber obtained from an aqueous dispersion thereof, admixed with starch. The flocculent precipitate may be obtained by known means such as the use of coagulants on dilute dispersions, and may be made before or after the addition of the starch. According to an example, 100 parts of a 60 per cent latex are diluted to 5 per cent; a 5 per cent solution containing 120 parts of sodium silicate, and then a 5 per cent solution containing 96 parts of aluminium sulphate are stirred in; a flocculent precipitate is formed. This is drained on a filter cloth until a mass containing 15-16 per cent of solids results. A weight of starch equal to that of the solids is ground in until a smooth cream is obtained. This may be diluted as required. Vulcanizing, compounding, &c. ingredients may be added. Soluble products may be removed. Specifications 219,635 and 290,313, [both in Class 70, Indiarubber &c.], are referred to.
GB1520332A 1932-05-28 1932-05-28 Improvements in or relating to the provision of articles with a smooth matt finish Expired GB397270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1520332A GB397270A (en) 1932-05-28 1932-05-28 Improvements in or relating to the provision of articles with a smooth matt finish

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1520332A GB397270A (en) 1932-05-28 1932-05-28 Improvements in or relating to the provision of articles with a smooth matt finish

Publications (1)

Publication Number Publication Date
GB397270A true GB397270A (en) 1933-08-24

Family

ID=10054848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1520332A Expired GB397270A (en) 1932-05-28 1932-05-28 Improvements in or relating to the provision of articles with a smooth matt finish

Country Status (1)

Country Link
GB (1) GB397270A (en)

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