GB875530A - Improvements in concentrated latex - Google Patents

Improvements in concentrated latex

Info

Publication number
GB875530A
GB875530A GB2418757A GB2418757A GB875530A GB 875530 A GB875530 A GB 875530A GB 2418757 A GB2418757 A GB 2418757A GB 2418757 A GB2418757 A GB 2418757A GB 875530 A GB875530 A GB 875530A
Authority
GB
United Kingdom
Prior art keywords
latex
peroxidized
olefines
aerobic
aerobic treatment
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
GB2418757A
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.)
NATURAL RUBBER PRODUCERS
Original Assignee
NATURAL RUBBER PRODUCERS
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 NATURAL RUBBER PRODUCERS filed Critical NATURAL RUBBER PRODUCERS
Priority to GB2418757A priority Critical patent/GB875530A/en
Publication of GB875530A publication Critical patent/GB875530A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • 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
    • C08C1/02—Chemical or physical treatment of rubber latex before or during concentration
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C08K5/175—Amines; Quaternary ammonium compounds containing COOH-groups; Esters or salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The rate at which Hevea brasiliensis latex or a concentrate thereof matures, i.e. attains the mechanical stability suitable for industrial use, is increased by maintaining the latex in aerobic condition and adding, preferably before the aerobic treatment, a substance which interacts with the peroxidic groups formed in the rubber by the aerobic treatment and so counteracts oxidative degradation. The aerobic condition may be obtained by agitation of the latex in the presence of a controlled amount of air or oxygen. The added substances are exemplified by aromatic diamines such as benzidine, the phenylenediamines and polyalkylene polyamines, e.g. tetraethylene pentamine, which favour development of cross-linking in peroxidized olefines, dior poly-hydric phenols such as di-tert. butyl hydroquinone which inhibit chain-scission in peroxidized olefines, and sequestering agents such as ethylenediamine tetra-acetic acid. Specification 869,283 is referred to.
GB2418757A 1957-07-30 1957-07-30 Improvements in concentrated latex Expired GB875530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2418757A GB875530A (en) 1957-07-30 1957-07-30 Improvements in concentrated latex

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2418757A GB875530A (en) 1957-07-30 1957-07-30 Improvements in concentrated latex

Publications (1)

Publication Number Publication Date
GB875530A true GB875530A (en) 1961-08-23

Family

ID=10207773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2418757A Expired GB875530A (en) 1957-07-30 1957-07-30 Improvements in concentrated latex

Country Status (1)

Country Link
GB (1) GB875530A (en)

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