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GB369725A - Improvements in the manufacture and production of conversion products of rubber - Google Patents

Improvements in the manufacture and production of conversion products of rubber

Info

Publication number
GB369725A
GB369725A GB562931A GB562931A GB369725A GB 369725 A GB369725 A GB 369725A GB 562931 A GB562931 A GB 562931A GB 562931 A GB562931 A GB 562931A GB 369725 A GB369725 A GB 369725A
Authority
GB
United Kingdom
Prior art keywords
peroxide
rubber
parts
products
acetyl
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
GB562931A
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 GB562931A priority Critical patent/GB369725A/en
Publication of GB369725A publication Critical patent/GB369725A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08CTREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00Chemical modification of rubber
    • C08C19/04Oxidation

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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Conversion products of rubber are prepared by acting on rubber and the like in solution in rubber solvents with up to 1 molecular proportion of a neutral peroxide of a carboxylic acid for each diolefine group present. Suitable peroxides mentioned are aliphatic peroxides such as acetyl peroxide, succinic peroxide, propionyl peroxide, mono-, chloro, or mono-bromo-acetyl peroxide, which give products soluble in liquid hydrocarbons or liquid halogenated hydrocarbons, while aromatic peroxides such as benzoyl peroxide, phthalyl peroxide, cinnamic peroxide, or acetyl salicylic peroxide give products which do not dissolve but only swell in the above solvents. The products are stated to be acyl derivatives of a hydroxylated rubber. The acyl group may be split off by acid or alkaline hydrolysis to yield products similar to those obtained by the process of Specification 369,716. The products may be moulded when hot, their plasticity being varied within wide limits by the incorporation of softening agents, colouring materials and fillers. If compounds with alkyl and acyl cellulose derivatives are made they are soluble in organic solvents and may be used for the preparation of lacquers and varnishes, films or artificial threads. In an example 100 parts of acetic anhydride in 500 parts of ethyl ether is shaken at 50 DEG C. for 1 hour with a suspension of 110 parts of barium peroxide in 150 parts of water. The ethereal layer is separated, dried, and the ether distilled. The acetyl peroxide is dissolved in benzene and added to 1000 parts of rubber solution containing 50 parts of rubber and allowed to stand 24 hours. The solvent is removed in steam and a colourless product is obtained.ALSO:Conversion products of rubber are prepared by acting on rubber and the like in solution in rubber solvents with up to 1 molecular proportion of a neutral peroxide of a carboxylic acid for each diolefine group present. Suitable peroxides mentioned are aliphatic peroxides such as acetyl peroxide, succinic peroxide, propionyl peroxide mono chloro or monobromo-acetyl peroxide, which give products soluble in liquid hydrocarbons or liquid halogenated hydrocarbons, while aromatic peroxides such as benzoyl peroxide, phthalyl peroxide, cinnamic peroxide, or acetyl salicylic peroxide give products which do not dissolve but only swell in the above solvents. The products are stated to be acyl derivatives of a hydroxylated rubber. The acyl group may be split off by acid or alkaline hydrolysis to yield products similar to those obtained by the process of Specification 369,716. The products may be moulded when hot, their plasticity being varied within wide limits by the incorporation of softening agents, colouring materials and fillers. If compounds with alkyl and acyl cellulose derivatives are made they are soluble in organic solvents and may be used for the preparation of lacquers and varnishes, films or artificial threads. In an example 100 parts of acetic anhydride in 500 parts of ethyl ether is shaken at 5 DEG C. for 1 hour with a suspension of 110 parts of barium peroxide in 150 parts of water. The ethereal layer is separated, dried, and the ether distilled. The acetyl peroxide is dissolved in benzene and added to 1000 parts of rubber solutions containing 50 parts of rubber and allowed to stand 24 hours. The solvent is removed in steam and a colourless product is obtained.ALSO:Conversion products of rubber are prepared by acting on rubber and the like in solution in rubber solvents with up to 1 molecular proportion of a neutral peroxide of a carboxylic acid for each diolefine group present. Suitable peroxides mentioned are aliphatic peroxides such as acetyl peroxide, succinic peroxide, propionyl peroxide, mono chloro- or mono-bromo-acetyl peroxide, which give products soluble in liquid hydrocarbons or liquid halogenated hydrocarbons, while aromatic peroxides such as benzoyl peroxide, phthalyl peroxide, cinnamic peroxide, or acetyl salicylic peroxide give products which do not dissolve but only swell in the above solvents. The products are stated to be acyl derivatives of a hydroxylated rubber. The acyl group may be split off by acid or alkaline hydrolysis to yield products similar to those obtained by the process of Specification 369,716. The products may be moulded when hot, their plasticity being varied within wide limits by the incorporation of softening agents, colouring materials and fillers. If compounds with alkyl and acyl cellulose derivatives are made they are soluble in organic solvents and may be used for the preparation of lacquers and varnishes, films, or artificial threads. In an example 100 parts of acetic anhydride in 500 parts of ethyl ether is shaken at 50 DEG C. for one hour with a suspension of 110 parts of barium peroxide in 150 parts of water. The ethereal layer is separated, dried, and the ether distilled. The acetyl peroxide is dissolved in benzene and added to 1000 parts of rubber solutions containing 50 parts of rubber and allowed to stand 24 hours. The solvent is removed in steam and a colourless product is obtained.
GB562931A 1931-02-23 1931-02-23 Improvements in the manufacture and production of conversion products of rubber Expired GB369725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB562931A GB369725A (en) 1931-02-23 1931-02-23 Improvements in the manufacture and production of conversion products of rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB562931A GB369725A (en) 1931-02-23 1931-02-23 Improvements in the manufacture and production of conversion products of rubber

Publications (1)

Publication Number Publication Date
GB369725A true GB369725A (en) 1932-03-31

Family

ID=9799663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB562931A Expired GB369725A (en) 1931-02-23 1931-02-23 Improvements in the manufacture and production of conversion products of rubber

Country Status (1)

Country Link
GB (1) GB369725A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580358A (en) * 1948-05-17 1951-12-25 William T Miller Method for storing perhaloacetyl peroxide and stabilized perhaloacetyl peroxide
US2580373A (en) * 1948-05-17 1951-12-25 Zimmerman Charles Process for preparing perhaloacetyl peroxide
US2586550A (en) * 1947-09-10 1952-02-19 Atomic Energy Commission Halogen-substituted acetyl peroxide catalyst for halo-olefin polymerization
US3028370A (en) * 1957-09-09 1962-04-03 Phillips Petroleum Co Thermosetting resins
CN114573734A (en) * 2022-03-10 2022-06-03 北京化工大学 High-performance eucommia ulmoides gum elastomer capable of being stretched and crystallized and preparation method and application thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586550A (en) * 1947-09-10 1952-02-19 Atomic Energy Commission Halogen-substituted acetyl peroxide catalyst for halo-olefin polymerization
US2580358A (en) * 1948-05-17 1951-12-25 William T Miller Method for storing perhaloacetyl peroxide and stabilized perhaloacetyl peroxide
US2580373A (en) * 1948-05-17 1951-12-25 Zimmerman Charles Process for preparing perhaloacetyl peroxide
US3028370A (en) * 1957-09-09 1962-04-03 Phillips Petroleum Co Thermosetting resins
CN114573734A (en) * 2022-03-10 2022-06-03 北京化工大学 High-performance eucommia ulmoides gum elastomer capable of being stretched and crystallized and preparation method and application thereof

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