Polymers and plastics with long-lasting odor and the use...

C - Chemistry – Metallurgy – 08 – K

Patent

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Details

C08K 5/00 (2006.01) A01N 25/18 (2006.01) A61L 9/04 (2006.01) C08J 3/22 (2006.01) C08K 5/07 (2006.01)

Patent

CA 2339738

The invention relates to a method for producing odorant polymers or plastics, wherein a crushed or fine particle first polymer material is mixed with the desired odorant, is allowed to swell during a predetermined period and then subjected to further treatment at a predetermined pressure and temperature. After swelling with the odorant, the first polymer material can be mixed with a second plastic material, wherein the first polymer material and the second plastic material can be identical or different from each. Odorant polymers can also be obtained by using a polymer as second plastic material. The invention also relates to the odorant polymer or the odorant plastic produced according to the inventive method and to a molding material or an object containing the odorant polymer or the odorant plastic.

L'invention concerne un procédé qui permet de fabriquer des polymères ou des plastiques odorants. Selon le procédé, on mélange un premier matériau polymère broyé ou finement divisé avec la substance odorante souhaitée; on laisse gonfler le mélange pendant un temps prédéterminé; puis on poursuit le traitement sous une pression et à une température prédéterminées. Après la phase de gonflement avec la substance odorante, on peut mélanger au premier matériau polymère un second matériau plastique, les deux matériaux pouvant être identiques ou différents. On obtient des polymères odorants par le fait qu'on utilise également un polymère comme second matériau plastique. L'invention concerne également le polymère ou le plastique odorant fabriqué selon le procédé ci-dessus, ainsi qu'une masse moulable ou un article contenant ledit polymère ou plastique odorant.

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