GB312201A - Improvements in the preparation of products of latex character - Google Patents

Improvements in the preparation of products of latex character

Info

Publication number
GB312201A
GB312201A GB3432727A GB3432727A GB312201A GB 312201 A GB312201 A GB 312201A GB 3432727 A GB3432727 A GB 3432727A GB 3432727 A GB3432727 A GB 3432727A GB 312201 A GB312201 A GB 312201A
Authority
GB
United Kingdom
Prior art keywords
emulsified
hydrogen peroxide
butadiene
water
acid
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
GB3432727A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3432727A priority Critical patent/GB312201A/en
Publication of GB312201A publication Critical patent/GB312201A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated

Abstract

312,201. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 19, 1927. Caoutchouc, synthetic.-Diolefines such as butadiene and its homologues and analogues are emulsified, dispersed or dissolved in aqueous media by means of soap-like dispersing agents, such as sulphonic acids or their salts, or oleates, and then polymerized in presence, if desired, of buffer solutions of fixed hydrogen-ion concentration, such as pH4-8.5, to produce products similar to latex; proteins may also be added. Oxidizing agents such as hydrogen peroxide, urea-hydrogen peroxide, or other peroxides or ozonides may be used to facilitate the polymerization. Acid-fixing agents may also be present. The polymerization is preferably effected below 60‹ C., for instance at room temperature, and the oxidizing and acid-fixing agents may be added gradually. The latex may be coagulated in known manner, for instance with acetic or hydrochloric acid. In examples, (1) a mixture of #-methyl butadiene, ammonium oleate, trisodium phosphate, hydrogen peroxide, glue, and water is emulsified and allowed to stand for 190 hours: (2) a mixture of butadiene, ammonium linoleate, ammonium oleate, sodium carbonate, disodium phosphate, hydrogen peroxide, glue, and water is emulsified in a pressure vessel at 30-40‹ C.; (3) butadiene is emulsified as in the first example but without hydrogen peroxide, the emulsion being forced through a long system of pipes mounted in a thermostat at 30-40‹ C., the hydrogen peroxide being added gradually; (4) isoprene is emulsified with an aqueous solution of ammonium oleate and di- and tri-sodium phosphate and kept at 60-80‹ C. in a pressure vessel for 3 weeks; (5) isoprene is emulsified with water, sodium oleate, the sodium salt of isobutylnaphthalene sulphonic acid, glue and disodium phosphate and kept at 80-90‹ C. in a pressure vessel; (6) a mixture of isoprene and butadiene is emulsified with water, turkey-red oil and trisodium phosphate. According to the Provisional Specifications, the polymerization may be effected by means of light of short wave-length, acrylic esters, acrolein condensation products, alkylamines, arylamines or the like. Specifications 283,840, 286,272, 292,103, 294,661, 294,963, 297,050 and 300,167 are referred to.
GB3432727A 1927-12-19 1927-12-19 Improvements in the preparation of products of latex character Expired GB312201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3432727A GB312201A (en) 1927-12-19 1927-12-19 Improvements in the preparation of products of latex character

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3432727A GB312201A (en) 1927-12-19 1927-12-19 Improvements in the preparation of products of latex character

Publications (1)

Publication Number Publication Date
GB312201A true GB312201A (en) 1929-05-21

Family

ID=10364248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3432727A Expired GB312201A (en) 1927-12-19 1927-12-19 Improvements in the preparation of products of latex character

Country Status (1)

Country Link
GB (1) GB312201A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455714A (en) * 1942-12-05 1948-12-07 Standard Oil Dev Co Method for the coagulation of emulsion polymerizates
US2465363A (en) * 1943-11-08 1949-03-29 Houdry Process Corp Production of synthetic elastomers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455714A (en) * 1942-12-05 1948-12-07 Standard Oil Dev Co Method for the coagulation of emulsion polymerizates
US2465363A (en) * 1943-11-08 1949-03-29 Houdry Process Corp Production of synthetic elastomers

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