Abstract: The present invention provides phthalate free impact resistant polypropylene copolymer and methods of preparation, which are produced directly from the polymerization reactor system without further compounding of components which significantly alters the physical properties of the resulting polymer. The copolymer according to the present invention possesses both low temperature ductility and high flexural modulus, wherein said polymer is produced in the presence of a phthalate free ZN catalyst comprising urea component.

Abstract: A method for manufacturing ink-absorbing recording medium is provided. A glossy ink-absorbing recording medium can be made by the following steps: coating process P1, cationic aluminum oxide or a dispersing solution or a colloid solution which mainly includes a cationic aluminum oxide solution is applied on the base material to form a membrane layer; drying process P2, the membrane layer is dried or semi-dried; polyvinyl alcohol applying process P3, cationic polyvinyl alcohol is applied on the dried or semi-dried membrane layer; casting process P4, the membrane layer which is applied with cationic polyvinyl alcohol is cast.