Polyolefin graft copolymer and adhesive composition
AssigneeIdemitsu Kosan Co., Ltd.
InventorsTakenori Fujimura, Ryo Aburatani, Shuji Machida, Shinichi Nakamura
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Abstract
A graft copolymer satisfying (a) to (e): (a) a main chain derived from one or more monomers selected from (I) an acrylic acid, (II) a methacrylic acid, (III) a vinyl ester, (IV) a styrene and (V) a vinyl group-containing silane compound, at least one kind of the monomer having a crosslinkable functional group, (b) a side chain derived from a reactive homopolymer α-olefin having a meso pentad fraction (mmmm) of from 30 to 80% by mol or a copolymer of 50% by mass or more of at least one α-olefin, (c) a graft ratio of from 1 to 150% by mass, (d) a weight average molecular weight of from 500 to 400,000, and (e) a molecular weight distribution (Mw/Mn) of from 1.5 to 4.
Claims20
A graft copolymer,
- comprising:
- (a) a main chain comprising, in reacted form, at least one monomer selected from the group consisting of (I) acrylic acid and a derivative thereof, (II) methacrylic acid and a derivative thereof, (III) a vinyl ester and a derivative thereof, (IV) styrene and a derivative thereof, and (V) a vinyl group comprising silane compound, whereby at least one of monomer (I)-(V) has a crosslinkable functional group;
- (b) a side chain comprising, in reacted form, a reactive polyolefin having a meso pentad fraction (mmmm) of from 30 to 80% by mol and having an end unsaturated group in an amount of from 0.5 to 1.0 group per one molecule, the reactive polyolefin being a homopolymer of an α-olefin having from 3 to 28 carbon atoms, a copolymer of two or more α-olefins having from 3 to 28 carbon atoms, or a copolymer of 50% by mass or more of at least one α-olefin having from 3 to 28 carbon atoms and 50% by mass or less of ethylene,
- wherein the graft copolymer has:
- (c) a graft ratio of from 1 to 150% by mass;
- (d) a weight average molecular weight of from 500 to 400,000 measured by GPC;
- and
- (e) a molecular weight distribution (Mw/Mn) of from 1.5 to 4.
A graft copolymer, comprising:
- (a′) a main chain that is derived from at least one monomer selected from group A and at least one monomer selected from group B, wherein at least one monomer selected from the group consisting of group A and group B has a crosslinkable functional group;
- wherein the group A monomer is selected from the group consisting of (VI) maleic anhydride and a substituted product thereof, (VII) maleic acid and an ester thereof, and (VIII) maleimide and a substituted product thereof;
- wherein the group B monomer is selected from the group consisting of (I) acrylic acid and a derivative thereof, (II) methacrylic acid and a derivative thereof, (III) a vinyl ester and a derivative thereof, (IV) styrene and a derivative thereof, (V) a vinyl group-comprising silane compound, and (IX) an α-olefin;
- (b) a side chain comprising, in reacted form, a reactive polyolefin having a meso pentad fraction (mmmm) of from 30 to 80% by mol and having an end unsaturated group in an amount of from 0.5 to 1.0 group per one molecule, the reactive polyolefin being a homopolymer of an α-olefin having from 3 to 28 carbon atoms, a copolymer of two or more α-olefins having from 3 to 28 carbon atoms, or a copolymer of 50% by mass or more of at least one α-olefin having from 3 to 28 carbon atoms and 50% by mass or less of ethylene,
- wherein the graft copolymer has:
- (c) a graft ratio of from 1 to 150% by mass;
- (d) a weight average molecular weight of from 500 to 400,000 measured by GPC;
- and
- (e) a molecular weight distribution (Mw/Mn) of from 1.5 to 4.
Dependencies are inferred from the claim text.