Elf Atochem S.a.

Roland Leroux

Laurent Fischer

Alain Frey

Henri-Jean Caupin

Henri J Caupin

Michel Guillon

The invention relates to a packaging comprising a thermoplastic film based on a polymer containing polyamide blocks and polyether blocks, said polymer being permeable to water vapor, to ethylene, to CO.sub.2 and to oxygen, such that the permeability to CO.sub.2 is very much greater than the permeability to oxygen. The invention is particularly useful for making sachets in order to conserve fresh fruit, vegetables or meat.

Packaging based on a polymer containing polyamide blocks and polyether

A stable composition having a deodorizing action includes a sequenced polyetheresteramide polymer and an undecylenic acid or a lipid-soluble or water-soluble derivative thereof. Suitable derivatives include the C.sub.1 to C.sub.6 alkyl esters of undecylenic acid.

Composition containing a polymer resin and undecylenic acid or

The present invention relates to a mixture comprising (i) a thermoplastic elastomer, (ii) at least one chemical mediator acting on the behavior of insects and acarids and chosen from pheromones, kairomones, or allomones, and optionally, (iii) undecylenic acid or derivatives thereof. The invention is particularly useful for treating crops against insects and acarids.

Growing community of inventors

Chaville, France

Roland Leroux