GB290313A - Improvements in the manufacture of rubber and similar vegetable resins - Google Patents

Improvements in the manufacture of rubber and similar vegetable resins

Info

Publication number
GB290313A
GB290313A GB2863026A GB2863026A GB290313A GB 290313 A GB290313 A GB 290313A GB 2863026 A GB2863026 A GB 2863026A GB 2863026 A GB2863026 A GB 2863026A GB 290313 A GB290313 A GB 290313A
Authority
GB
United Kingdom
Prior art keywords
latex
added
rubber
concentration
alkali
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
GB2863026A
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 to NL22968D priority Critical patent/NL22968C/xx
Priority to BE346188D priority patent/BE346188A/xx
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB2863026A priority patent/GB290313A/en
Priority to FR643762D priority patent/FR643762A/en
Priority to DEA52445D priority patent/DE589573C/en
Publication of GB290313A publication Critical patent/GB290313A/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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
    • C08J3/212—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase and solid additives
    • 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
    • C08J2307/00—Characterised by the use of natural rubber
    • C08J2307/02—Latex

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

290,313. Dunlop Rubber Co., Ltd., Twiss, D. F., and Murphy, E. A. Nov. 13, 1926. Latex, treating.-During the concentration by evaporation of latex to which compounding ingredients and stabilizing agents have previously been added, a gentle continuous mixing action is maintained. The stabilizing agents may include colloids such as glue, gelatine, casein, vegetable gums, dextrin or soap, an alkali capable of acting with the natural acids of the, latex, or saline substances such as sodium silicate or viscose which impart an alkaline reaction. Preferably there is employed a non-volatile alkali or an alkalimetal derivative of a colloid in proportion just sufficient to facilitate concentration without immediate coagulation. When an alkali-colloid is employed it may be prepared from an acid of high molecular weight or from a protein substance and may be added to the latex as such or substances may be added to the latex so that the alkali-colloid is formed by chemical action therein. In an example, 8 parts zinc oxide, 2.5 sulphur, 1 lamp black, 20 talc, 15 whiting, 2 emulsified paraffin wax, 1 finely-ground mineral rubber, are mixed with 100 parts of water containing 0.1 part caustic potash, 0.3 oleac acid and 0.3 casein. Ammomia-preserved latex is then added in the proportion of 60 parts rubber and the whole mixed and concentrated at 70‹ C. After concentration, ammonia and an accelerator such as 0.3 part diethylammonium diethyldithiocarbonate are added during cooling, the mixing action being continued until both are uniformly distributed. Other examples are given in one of which sulphur and piperidine piperidine-carbo. thianolate are added during the latter part of the concentration. The addition of aqueous ammonia to the cencentrates prevents thickening to a stiff paste. Mixtures of two or more aqueous dispersions of rubber, gutta-percha, balata and similar resins may be concentrated according to the invention.
GB2863026A 1926-11-13 1926-11-13 Improvements in the manufacture of rubber and similar vegetable resins Expired GB290313A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL22968D NL22968C (en) 1926-11-13
BE346188D BE346188A (en) 1926-11-13
GB2863026A GB290313A (en) 1926-11-13 1926-11-13 Improvements in the manufacture of rubber and similar vegetable resins
FR643762D FR643762A (en) 1926-11-13 1927-11-10 Process for the production of a concentrated product containing added materials, starting from dispersions of rubber or the like
DEA52445D DE589573C (en) 1926-11-13 1927-11-11 Process for the production of a reversible concentrate containing fillers from dispersions of rubber and similar substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2863026A GB290313A (en) 1926-11-13 1926-11-13 Improvements in the manufacture of rubber and similar vegetable resins

Publications (1)

Publication Number Publication Date
GB290313A true GB290313A (en) 1928-05-14

Family

ID=10278626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2863026A Expired GB290313A (en) 1926-11-13 1926-11-13 Improvements in the manufacture of rubber and similar vegetable resins

Country Status (5)

Country Link
BE (1) BE346188A (en)
DE (1) DE589573C (en)
FR (1) FR643762A (en)
GB (1) GB290313A (en)
NL (1) NL22968C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022172137A1 (en) * 2021-02-09 2022-08-18 De Greiff Palacio Mauricio Wet method for producing pre-mixtures of particulate natural rubber

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104327321A (en) * 2014-11-12 2015-02-04 金华派对乳胶工艺品有限公司 Latex

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022172137A1 (en) * 2021-02-09 2022-08-18 De Greiff Palacio Mauricio Wet method for producing pre-mixtures of particulate natural rubber

Also Published As

Publication number Publication date
NL22968C (en)
DE589573C (en) 1933-12-09
BE346188A (en)
FR643762A (en) 1928-09-22

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