04307209 is referenced by 11 patents and cites 9 patents.

In a process for the production of a chemically blended composition of non-elastomeric ethylene resins in a multiplicity of steps in the presence of a catalyst composed of a transition metal catalyst component and an organometallic compound, which comprises (a) a step of forming (i) an ethylene polymer or an ethylene/alpha-olefin copolymer having an alpha-olefin content of up to 15% by weight, said polymer or copolymer (i) having an intrinsic viscosity [.eta.] of 0.3 to 3, and (b) a step of forming (ii) an ethylene/alpha-olefin copolymer having an alpha-olefin content of 0.2 to 30% by weight which is more than that of the polymer or copolymer (i), said copolymer (ii) having an intrinsic viscosity [.eta.] of 1 to 12 which is at least 1.5 times that of the polymer or copolymer (i), said step (a) being performed first and then step (b) being performed in the presence of the product of step (a), or step (b) being performed first and then step (a) being performed in the presence of the product of step (b), the improvement wherein in steps (a) and (b), ethylene is polymerized or copolymerized with the alpha-olefin

Title
Process for production of chemically blended composition of non-elastomeric ethylene resins
Application Number
6/167141
Publication Number
4307209
Application Date
July 9, 1980
Publication Date
December 22, 1981
Inventor
Norio Kashiwa
Iwakuni
JP
Yoshinori Morita
Iwakuni
JP
Agent
Sherman & Shalloway
Assignee
Mitsui Petrochemical
JP
IPC
C08F 297/08
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