GB661252A - Improvements in the preservation of latex - Google Patents

Improvements in the preservation of latex

Info

Publication number
GB661252A
GB661252A GB22498/49A GB2249849A GB661252A GB 661252 A GB661252 A GB 661252A GB 22498/49 A GB22498/49 A GB 22498/49A GB 2249849 A GB2249849 A GB 2249849A GB 661252 A GB661252 A GB 661252A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
tri
per cent
condensation product
amount
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
GB22498/49A
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.)
Uniroyal Inc
Original Assignee
United States Rubber Co
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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB661252A publication Critical patent/GB661252A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08C1/06—Preservation of rubber latex

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

661,252. Preserving natural rubber latex. UNITED STATES RUBBER CO. Aug. 30. 1949 [Sept. 11, 1948], No. 22498/49. Class 70 Natural rubber latex is preserved by adding formaldehyde and a condensation product of formaldehyde and an alkali metal salt of an aryl sulphonic acid. An amine from the group consisting of di- and tri-methylamine, di- and tri-ethylamine and morpholine may also be added. The amount of formaldehyde is preferably from 0.1 to 1.0 per cent so that the pH is reduced to about 5.5 to 6.8. The preferred alkalimetal salt is sodium naphthalene sulphbnate and the condensation product derived therefrom is preferably added in an amount of 0.05 to 1.0 per cent.
GB22498/49A 1948-09-11 1949-08-30 Improvements in the preservation of latex Expired GB661252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US661252XA 1948-09-11 1948-09-11

Publications (1)

Publication Number Publication Date
GB661252A true GB661252A (en) 1951-11-21

Family

ID=22067393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22498/49A Expired GB661252A (en) 1948-09-11 1949-08-30 Improvements in the preservation of latex

Country Status (2)

Country Link
FR (1) FR1004605A (en)
GB (1) GB661252A (en)

Also Published As

Publication number Publication date
FR1004605A (en) 1952-04-01

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