Phenol-stabilized microbiocidal compositions
AssigneeMorton Thiokol, Inc.
InventorsNuno M. Rei, Lawrence P. Grant
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Abstract
Solutions of microbiocides in cosolvents having alkanol moieties and concentrate compositions of carriers, microbiocides and cosolvents having alkanol moieties are stabilized against UV-catalyzed oxidation by the addition of phenolic antioxidants. The solutions or concentrate compositions are added to polymeric resins and formed, e.g., by fusion, into polymer compositions exhibiting microbiocidal properties.
Claims35
A concentrate solution comprising between about 10 and about 30 wt. percent of a microbiocide, between about 70 and about 80 wt. percent of a solvent for said microbiocide having an alkanol moiety and between about 1 and about 10 wt. percent of a phenol antioxidant, based upon the total combined weight of microbiocide, solvent and phenolic antioxidant.
A composition comprising between about 0.5 and about 10 wt. percent of a microbiocide, between about 2 and about 30 wt. percent of a cosolvent for said microbiocide having an alkanol moiety, between about 0.1 and about 5 wt. percent of a phenolic antioxidant, and balance one or more carriers.
Dependencies are inferred from the claim text.