| 摘要 |
PCT No. PCT/NO94/00140 Sec. 371 Date May 14, 1997 Sec. 102(e) Date May 14, 1997 PCT Filed Aug. 26, 1994 PCT Pub. No. WO96/06872 PCT Pub. Date Mar. 7, 1996A method of free radical grafting of monomers onto a polypropylene resin includes: (i) mixing the polypropylene resin with an allylepoxy compound, a styrenic compound and a peroxide as an initiator, (ii) heating the mixture to a temperature which is higher than the melting point of the polypropylene resin and the decomposition temperature of the 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 provided by the method includes 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 promoter, and in articles which require an improved printability. |
