Polyisoprene condoms

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 3/20 (2006.01) A61F 6/04 (2006.01) B29C 41/00 (2006.01) C08J 5/02 (2006.01) C08L 9/10 (2006.01) A61B 19/04 (2006.01)

Patent

CA 2646242

The present invention relates to processes for making synthetic polyisoprene latex and synthetic polyisoprene condoms. A process for making a compounded synthetic polyisoprene latex suitable for making a latex film comprises (a) compounding a synthetic polyisoprene latex with suitable compounding ingredients, (b) maturing the latex and optionally (c) storing the latex; characterised in that steps (a), (b) and (c) if included are carried out at a low temperature so as to minimise prevulcanisation of the latex. Condoms can be made from latexes produced according to the process of the invention.

La présente invention concerne des procédés permettant de fabriquer des préservatifs en latex polyisoprène synthétique et en polyisoprène synthétique. Le procédé faisant l'objet de cette invention est destiné à la fabrication d'un latex polyisoprène synthétique composé permettant d'élaborer un film de latex, et il consiste à (a) combiner un latex polyisoprène synthétique avec des ingrédients de mélange appropriés, (b) amener le latex à maturation, et éventuellement (c) stocker le latex. Le procédé est caractérisé en ce que les étapes (a), (b) et (c), le cas échéant, sont mises en AEuvre à basse température de façon à minimiser la prévulcanisation du latex. Les préservatifs peuvent être fabriqués à partir des latex produits selon le procédé de l'invention.

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