An additive that is used in conjunction with certain dibenzylidene sorbitol-type (DBS) clarifiers and acid scavengers within polyolefin resins to reduce the release of aldehydes from polypropylene material is disclosed. Hydrazides have been shown to be effective at removing residual aldehyde from polyolefins, such as polypropylene. This function can be accomplished with a minimal impact on optical transparent properties imparted to the polypropylene by the clarifying agent. The net effect is an improvement in the organoleptic performance of resins containing clarifiers, and a reduction in the UV-absorbing extractables. Particularly, adipic dihydrazide, when co-compounded into polypropylene homopolymer with 4-methyl DBS, improves the organoleptic performance of the clarifier. Incorporation of dihydrazides into polypropylene pellets reduced air-released aldehyde by nearly 100%.

Um aditivo que seja usado conjuntamente com determinado sorbitol-tipo do dibenzylidene (DBS) clarifiers e limpadores ácidos dentro das resinas do polyolefin reduzir a liberação dos aldeídos do material do polypropylene é divulgado. Hydrazides foi mostrado para ser eficaz em remover o aldeído residual dos polyolefins, tais como o polypropylene. Esta função pode ser realizada com um impacto mínimo nas propriedades transparentes óticas dadas ao polypropylene pelo agente esclarecendo. O efeito líquido é uma melhoria no desempenho organoleptic das resinas que contêm clarifiers, e uma redução nos extractables UV-absorvendo. Particularmente, o dihydrazide adipic, quando co-combinado no homopolymer do polypropylene com 4-methyl DBS, melhora o desempenho organoleptic do clarifier. A incorporação dos dihydrazides em pelotas do polypropylene reduziu o aldeído ar-liberado por quase 100%.

 
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