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GB1366441A - Preparation of antioxidant - Google Patents

Preparation of antioxidant

Info

Publication number
GB1366441A
GB1366441A GB2961472A GB2961472A GB1366441A GB 1366441 A GB1366441 A GB 1366441A GB 2961472 A GB2961472 A GB 2961472A GB 2961472 A GB2961472 A GB 2961472A GB 1366441 A GB1366441 A GB 1366441A
Authority
GB
United Kingdom
Prior art keywords
hydroxyanisole
preparation
june
butylated
antioxidant
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
GB2961472A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US921002D priority Critical patent/UST921002I4/en
Publication of GB1366441A publication Critical patent/GB1366441A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00Ethers; Compounds having groups, groups or groups
    • C07C43/02Ethers
    • C07C43/20Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
    • C07C43/23Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing hydroxy or O-metal groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

1366441 Preparation of butylated hydroxyanisole EASTMAN KODAK CO 23 June 1972 [23 June 1971] 29614/72 Heading C2C Butylated 4-hydroxyanisole having the 3- isomer (i.e. 3-t-butyl-4-hydroxyanisole) present in a concentration of greater than 95% by weight, is prepared by adding an aqueous solution of lithium, sodium, potassium, rubidium, or caesium hydroxide over one to three and a half hours to an agitated system of t-butylhydroquinone and dimethyl sulphate in an organic solvent at 30‹ to 50‹ C.
GB2961472A 1971-06-23 1972-06-23 Preparation of antioxidant Expired GB1366441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US921002D UST921002I4 (en) 1972-06-23 1972-12-22 Defensive publication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15613171A 1971-06-23 1971-06-23

Publications (1)

Publication Number Publication Date
GB1366441A true GB1366441A (en) 1974-09-11

Family

ID=22558236

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2961472A Expired GB1366441A (en) 1971-06-23 1972-06-23 Preparation of antioxidant

Country Status (1)

Country Link
GB (1) GB1366441A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007015260A2 (en) 2005-04-19 2007-02-08 Camlin Fine Chemicals Ltd. Improvement in synthesis of butylated hydroxyanisole from tertiary butyl hydroquinone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007015260A2 (en) 2005-04-19 2007-02-08 Camlin Fine Chemicals Ltd. Improvement in synthesis of butylated hydroxyanisole from tertiary butyl hydroquinone
WO2007015260A3 (en) * 2005-04-19 2008-07-17 Camlin Fine Chemicals Ltd Improvement in synthesis of butylated hydroxyanisole from tertiary butyl hydroquinone

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees