FUNGICIDAL POLYOLEFINS USED AS METAL ADHESION PROMOTERS Russian patent published in 2012 - IPC C08F255/02 C09J151/06 C08L51/06 B29C47/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to an improved method of producing polyolefins grafted with acrylic acid, as well as to methods of increasing adhesion of polypropylene polymers to polar materials and to thermoplastic vulcanised elastomers. The improved method of producing polypropylenes involves feeding acrylic acid and peroxide into an extruder further from the point where polypropylene is fed. Acrylic acid is fed at a rate of more than 25 pounds an hour, peroxide is fed at a rate of more than 2 pounds an hour and total weight is more than 500 pounds an hour. The obtained propylene, which is grafted with acrylic acid, has melt flow rate ranging from approximately 100 to approximately 500 dg per min. Methods of increasing adhesion of polypropylene polymers to polar materials and to thermoplastic vulcanised elastomers involves use of said propylene, which is grafted with acrylic acid, as an adhesion promoter.

EFFECT: obtaining improved material for adhesion of propylene-based polyolefins with polar materials and thermoplastic vulcanised elastomers.

16 cl, 4 tbl