Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
A thermoplastic elastomer composition prepared by partially crosslinking a composition comprising the following components (A), (B) and (C): (A)30-70 parts by weight of an ethylene/α-olefin copolymer prepared by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms in the presence of a catalyst comprising a solid component and an organoaluminum compound which solid component contains at least magnesium and titanium, said ethylene/α-olefin copolymer having the following properties (I) to (IV): (I) Melt index 0.01-100 g/10 min (II) Density 0.860-0.910 g/cm³ (III) Maximum peak temperature as measured according to a differential scanning calorimetry (DSC) not lower than 100°C (IV) Insolubles in boiling n-hexane not less than 10 wt.% (B) 70-30 parts by-weight of a propylene polymer; and (C) 70-200 parts by weight, based on 100 parts by weight of the components (A) and (B), of an ethylene/α-olefin copolymer rubber.
Claim 2
Dependent Claim
140 words
A thermoplastic elastomer composition prepared by partially crosslinking a composition comprising the following components (A), (B) and (C): (A)30-70 parts by weight of an ethylene/α-olefin copolymer prepared by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms in the presence of a catalyst comprising a solid component and an organoaluminum compound which solid component contains at least magnesium and titanium, said ethylene/α-olefin copolymer having the following properties (I) to (IV): (I) Melt index 0.01-100 g/10 min (II) Density 0.860-0.910 g/cm³ (III) Maximum peak temperature as measured according to a differential scanning calorimetry (DSC) not lower than 100°C (IV) Insolubles in boiling n-hexane not less than 10 wt.% (B) 70-30 parts by-weight of a propylene polymer; and (C) 70-200 parts by weight, based on 100 parts by weight of the components (A) and (B), of an ethylene/α-olefin copolymer rubber.
Claim 3
Dependent Claim
26 words
A composition as set forth in Claim 1, wherein the α-olefin content of the ethylene/α-olefin copolymer (A) is in the range of 5 to 40 mol%.
Claim 4
Dependent Claim
28 words
A composition as set forth in Claim 1 or Claim 2, wherein the α-olefin of the ethylene/α-olefin copolymer (A) is propylene, butene-1, 4-methylpentene-1, hexene-1, octene-1, decene-1, or dodecene-1.
Claim 5
Dependent Claim
37 words
A composition as set forth in any one of Claims 1 to 3, wherein the propylene polymer (B) is a homopolymer of propylene or a copolymer of propylene and an α-olefin having 2 to 8 carbon atoms.
Claim 6
Dependent Claim
34 words
A composition as set forth in any one of Claims 1 to 4, wherein the ethylene/α-olefin copolymer rubber (C) has a Mooney viscosity (ML 1+4 , 100°C) in the range of 10 to 95.
Claim 7
Dependent Claim
23 words
A composition as set forth in any one of Claims 1 to 5, wherein the partial crosslinking is performed using an organic peroxide.
Claim 8
Dependent Claim
21 words
An article formed from a composition comprising a thermoplastic elastomer composition as claimed in any one of Claims 1 to 6.