Auto-oxidation systems for air-activatable polymerisable compositions
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United States of America Patent
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Apr 22, 2003
Grant Date -
N/A
app pub date -
Mar 16, 2001
filing date -
Sep 17, 1998
priority date (Note) -
Expired
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Abstract
An air-activatable polymerisable composition useful, in the field of adhesives, sealants, surface coatings, moulding resins and composite matrices, comprises: a) at least one free-radically polymerisable monomer, b) an activator system for effective polymerisation of the free-radically polymerisable monomer, said activator system comprising at least one auto-oxidisable compound which is a beta diketone, c) a soluble ionic salt, particularly a transition metal salt, d) and a weak acid or a latent weak acid, with the proviso that the composition does not contain a peroxide, or a peroxide precursor which produces peroxide in the absence of air, or any ingredient which is a significant source of radicals in the absence of air.
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