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
GB1454664A
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.)
Bayer AG
Original Assignee
Bayer AG
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Filing date
Publication date
Application filed by Bayer AGfiledCriticalBayer AG
Publication of GB1022719ApublicationCriticalpatent/GB1022719A/en
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
C08K5/04—Oxygen-containing compounds
C08K5/13—Phenols; Phenolates
Abstract
Polybutadiene or a butadiene-styrene copolymer is stabilized for processing at high temperature by the addition of one or more hydroquinones substituted by hydrocarbon radicals and/or pyroesters and/or monoethers thereof. Specified stabilizers are 2,5-di-t-butyl or 2,5-diisopropyl or 2,5-dialkyl or 2,5-diisooctyl or 2,5-dibenzyl or 2,5-di(alphamethylbenzyl) or 2,5-di(alpha-dimethylbenzyl) or 2,5-di(alphadysteryl methyl) hydroquinones and 2,6-di-t-butyl or 2,6-diisopropyl or 2,6-diethyl or 2,6-diallyl hydroquinones and 1,4-dihydroxy- 5 - 8 - dihydronaphthalene, 2,6 - di - t - butyl-4-methoxy phenol, 2,6-di-sec-butyl-4-methoxy phenol, 2,6-diisopropyl-4-methoxy phenol, 2,6-di-t-butyl-4-tbutoxyphenol, tris(3,5-di-t-butyl-4-hydroxyphenyl) phosphite and 2,3-diallyl hydroquinone. The usual vulcanizing and compounding ingredients may be present and the mixtures may be vulcanized.
GB1454664A1963-04-111964-04-08Process for stabilising polybutadiene and styrene-butadiene copolymers
ExpiredGB1022719A
(en)
Procedure for the curing and vulcanization by the heat of a copolymer of ethylene - propylene (Machine-translation by Google Translate, not legally binding)
Procedure for the protection against the mohes of matters attackable by these organisms. (Machine-translation by Google Translate, not legally binding)