【発明の名称】エチレン-α-オレフィンブロックコポリマー及びその製造方法

Japanese Patent JP3270763

B2

This invention relates to block polymers containing both crystalline and elastomeric blocks, the block copolymer having an A block and a B block. The A block is a polyethylene or an ethylene polymer optionally containing an alpha-olefin and is generally crystalline. The B block contains an ethylene, alpha -olefin copolymer segment and optionally contain an ethylene, alpha -olefin, non-conjugated diene terpolymer segment. If the B block contains a diene containing segment, the diene containing segment is furthest from the junction of the A and the B blocks. Also disclosed is a process for manufacture of the block copolymers and methods for coupling the block copolymers. Coupled block copolymers are useful as thermoplastic elastomers exhibiting physical properties approaching those of crosslinked EP or EPDM elastomers, but showing thermal processability after coupling. The block copolymers of the present invention may also be used as a lubricant or fuel additive, as a plastics blend component, in bitumen blends, as a component in hot melt adhesives and as a component of roof sheeting compounds.

Kose With, Charles
Vell Straight, Garry William
West, Roger Curl
Capone, Gaeitano Ai

JP52643995A

April 02, 2002

April 06, 1995

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ExxonMobil Chemical Patents, Inc.

C08F4/20; C08F4/68; C08F297/08; C10C3/02; C10L1/14; C10L1/16; C10L1/198; C10L1/238; C10L1/24; C10L1/26; C10L1/30; C10M143/02; C10M143/14; C10M149/02; C10L1/18; C10L1/20; C10L1/22; C10N30/02; (IPC1-7): C08F297/08; C10L1/16; C10M143/14

JP6035009A
JP1207309A
JP62501779A

【文献】米国特許3378608(US,A)
【文献】西独国特許出願公開2049497(DE,A1)
【文献】英国特許出願公開1175670(GB,A)

Kozo Yamazaki

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