GB544449A - Process of concentrating dispersions of rubber and rubber-like substances - Google Patents

Process of concentrating dispersions of rubber and rubber-like substances

Info

Publication number
GB544449A
GB544449A GB1524040A GB1524040A GB544449A GB 544449 A GB544449 A GB 544449A GB 1524040 A GB1524040 A GB 1524040A GB 1524040 A GB1524040 A GB 1524040A GB 544449 A GB544449 A GB 544449A
Authority
GB
United Kingdom
Prior art keywords
rubber
latex
creaming
gas
added
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
GB1524040A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to GB1524040A priority Critical patent/GB544449A/en
Publication of GB544449A publication Critical patent/GB544449A/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
    • C08C1/075—Concentrating
    • C08C1/08—Concentrating with the aid of creaming agents

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)
  • Grain Derivatives (AREA)

Abstract

544,449. Creaming latex. REVERTEX, Ltd. (Metallgesellschaft Akt.-Ges.). Oct. 14, 1940, No. 15240. [Class 70] The creaming of latices of rubber, guttapercha, balata, synthetic rubbers such as derivatives of butadiene or chloroprene or of rubber reclaim is accelerated by the pressure of finely divided solid or gaseous substances. A gas such as air, nitrogen or oxygen, which may be mixed with steam is passed through fritted glass, microporous rubber, or spinnerets into latex containing a creaming agent. The gas may be passed for one or two hours. after which the latex is left to cream. Substances such as hydrogen peroxide or metallic calcium which generate gas may be added to latex, or a froth of rubber dispersion or of creaming agent may be added. Alternatively the latex may be submitted to reduced pressure to cause dissolved gases to be evolved. The creaming may be effected in the presence of solid inert bodies such as glass wool, glass beads, Raschig rings, earthenware fragments or sponge rubber, or inert particles such as sand may be added continuously or intermittently. Specification 337,269, [Class 70], is referred to.
GB1524040A 1940-10-14 1940-10-14 Process of concentrating dispersions of rubber and rubber-like substances Expired GB544449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1524040A GB544449A (en) 1940-10-14 1940-10-14 Process of concentrating dispersions of rubber and rubber-like substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1524040A GB544449A (en) 1940-10-14 1940-10-14 Process of concentrating dispersions of rubber and rubber-like substances

Publications (1)

Publication Number Publication Date
GB544449A true GB544449A (en) 1942-04-14

Family

ID=10055544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1524040A Expired GB544449A (en) 1940-10-14 1940-10-14 Process of concentrating dispersions of rubber and rubber-like substances

Country Status (1)

Country Link
GB (1) GB544449A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293516A1 (en) * 2001-09-13 2003-03-19 Bayer Ag Process of concentrating polymer latices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293516A1 (en) * 2001-09-13 2003-03-19 Bayer Ag Process of concentrating polymer latices
US6855766B2 (en) 2001-09-13 2005-02-15 Bayer Aktiengesellschaft Process for concentrating polymer latexes

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