Free radical grafting of monomers onto polypropylene resins

C - Chemistry – Metallurgy – 08 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08F 255/02 (2006.01)

Patent

CA 2198467

A method of free radical grafting of monomers onto a polypropylene resin, comprising the steps of: (i) mixing the polypropylene resin with an allylepoxy compound, a styrenic compound and a peroxide as an initiator, (ii) heating said mixture to a temperature which is higher than the melting point of the polypropylene resin and the decomposition temperature of said peroxide, at conditions of continuous mixing until a desired degree of grafting of the allylepoxy compound and the styrenic compound onto the polypropylene resin has been achieved, and (iii) cooling and comminuting the obtained composition. A grafted polypropylene composition being obtained by said method comprises an amount of glycidyl methacrylate of 0 to 10 % by weight and an amount of styrene of 0 to 10 % by weight, calculated on the polypropylene resin. The composition may be used as a compatibilizer in the manufacturing of polymer blends, as a polymer adhesion promotor, and in articles which require an improved printability.

L'invention concerne un procédé de greffe radicalaire de monomères sur une résine polypropylène, comprenant les étapes consistant à: (i) mélanger la résine polypropylène avec un composé allylépoxyde, un composé du styrène et un peroxyde comme initiateur; à (ii) chauffer ledit mélange, tout en continuant à le mélanger, à une température qui est supérieure au point de fusion de la résine polypropylène et à la température de décomposition dudit peroxyde, jusqu'à avoir atteint le degré souhaité de greffe du composé allylépoxyde et du composé du styrène sur la résine polypropylène; et (iii) à refroidir et broyer finement la composition obtenue. La composition de polypropylène greffé obtenue par ce procédé contient une quantité de glycidylméthacrylate allant de 0 à 10 % en poids et une quantité de styrène allant de 0 à 10 % en poids, sur la base de la résine polypropylène. La composition peut être utilisée pour améliorer la compatibilité dans la fabrication de mélanges polymères, comme promoteur de l'adhésion de polymères et pour améliorer l'aptitude à l'impression.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Free radical grafting of monomers onto polypropylene resins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Free radical grafting of monomers onto polypropylene resins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Free radical grafting of monomers onto polypropylene resins will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1916496

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.