Novel desensitized ketone peroxide compositions and their use in the manufacture of foundry cores or moulds
AssigneeAkzo N.V.
InventorJohn Meijer
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Abstract
This disclosure relates to novel desensitized ketone peroxide compositions containing as desensitizing agent 2,2,4-trimethyl-1,3-pentanediol diisobutyrate. It further relates to the use of these compositions in the manufacture of foundry cores or moulds.
Claims5
A desensitized ketone peroxide composition which contains as desensitizing agent a monocarboxylic acid diester of an alkane diol, characterized in that the diester consists of 2,2,4-trimethyl-1,3-pentanediol diisobutyrate.
A process for the manufacture of a foundry core or mould, in which process a composition comprising a granular filler, a synthetic resin which is curable under the influence of an acid and a desensitized ketone peroxide composition is formed into the desired foundry core or mould and treated with sulphur dioxide, characterized in that the ketone peroxide composition contains 2,2,4-trimethyl-1,3-pentanediol diisobutyrate as desensitizing agent.
Dependencies are inferred from the claim text.