FORFARANDE FOR FRAMSTELLNING AV STERISKT HINDRADE BIS- ELLER POLYFENOLER
Sterically hindered bisphenols or polyphenols of the general formula wherein the substituents are defined in Claim 1, are obtained by reacting sterically hindered 2,4,6-trialkylphenols with acetals or with aldehydes or with cyclic or linear polymers of these aldehydes at a temperature of 60 to 200 D...
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| creator | 8)V K GUSEV 4)O F STARIKOVA 5)G I RUTMAN 6)J I MICHUROV 1)E L STYSKIN 9)A G LIAKUMOVICH 2)Y A GURVICH 3)S T KUMOK 7)V A YANSHEVSKY |
| description | Sterically hindered bisphenols or polyphenols of the general formula wherein the substituents are defined in Claim 1, are obtained by reacting sterically hindered 2,4,6-trialkylphenols with acetals or with aldehydes or with cyclic or linear polymers of these aldehydes at a temperature of 60 to 200 DEG C in the presence of an acid catatlyst. The sterically hindered bisphenols or polyphenols may be used, for example, as effective, non-staining, non-toxic and low-volatility stabilisers for natural and synthetic rubbers, plastics and other organic products. |
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The sterically hindered bisphenols or polyphenols may be used, for example, as effective, non-staining, non-toxic and low-volatility stabilisers for natural and synthetic rubbers, plastics and other organic products.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | FORFARANDE FOR FRAMSTELLNING AV STERISKT HINDRADE BIS- ELLER POLYFENOLER |
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