GB450323A - Improvements in or relating to the preservation of rubber - Google Patents

Improvements in or relating to the preservation of rubber

Info

Publication number
GB450323A
GB450323A GB3103/35A GB310335A GB450323A GB 450323 A GB450323 A GB 450323A GB 3103/35 A GB3103/35 A GB 3103/35A GB 310335 A GB310335 A GB 310335A GB 450323 A GB450323 A GB 450323A
Authority
GB
United Kingdom
Prior art keywords
parts
rubber
acid
aniline
substituents
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
GB3103/35A
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.)
Rubber Service Laboratories Co
Original Assignee
Rubber Service Laboratories 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 Rubber Service Laboratories Co filed Critical Rubber Service Laboratories Co
Publication of GB450323A publication Critical patent/GB450323A/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

Landscapes

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

Abstract

A reaction product of an aliphatic ketone and an aromatic primary amine free from substituents in the para-position is resinified by treatment with a strong non-oxidizing mineral acid. As an example, 100 parts of 2.2.4-trimethyldihydro-quinoline obtained by reacting acetone and aniline are treated with 55 parts of concentrated hydrochloric acid for 20 hours at 85--90 DEG C., and the excess acid is subsequently neutralized. The products are useful as anti-oxidants for rubber &c.ALSO:Antioxidants for rubber &c. are obtained by resinifying with a strong non-oxidizing mineral acid a reaction product of an aliphatic ketone and an aromatic primary amine which is free from substituents in the para position. As an example, 100 parts of 2.2.4-trimethyldihydroquinoline obtained by reacting acetone and aniline are treated with 55 parts of concentrated hydrochloric acid for 20 hours at 85-90 DEG C., and the excess acid is then neutralized.
GB3103/35A 1934-03-12 1935-01-30 Improvements in or relating to the preservation of rubber Expired GB450323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US450323XA 1934-03-12 1934-03-12

Publications (1)

Publication Number Publication Date
GB450323A true GB450323A (en) 1936-07-15

Family

ID=21935639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3103/35A Expired GB450323A (en) 1934-03-12 1935-01-30 Improvements in or relating to the preservation of rubber

Country Status (1)

Country Link
GB (1) GB450323A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479098A1 (en) * 1980-04-01 1981-10-02 Riso Kagaku Corp STENCIL SHEET ASSEMBLY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479098A1 (en) * 1980-04-01 1981-10-02 Riso Kagaku Corp STENCIL SHEET ASSEMBLY

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