| 摘要 |
<p>A composition comprising the following (A), (B) and (C) :
(A): Polymer (A-1) that is a polymer having structural units derived from propylene and structural units derived from 1-butene, wherein the content of the structural units derived from propylene is 70 to 99 mol% based on all structural units of Polymer (A-1), the content of the structural units derived from 1-butene is 1 to 30 mol% based on all structural units of Polymer (A-1), and substantially no melting peak is observed with Polymer (A-1), or,
Polymer (A-2) obtained by graft polymerization of Polymer (A-1) with an ±,²-unsaturated carboxylic acid compound,
(B): Polymer (B-1) that is a polymer having structural units derived from ethylene and structural units derived from propylene, wherein the content of the structural units derived from ethylene is 5 to 20 mol% based on all structural units of Polymer (B-1), the content of the structural units derived from propylene is 80 to 95 mol% based on all structural units of Polymer (B-1), and the melting peak of which is observed, or,
Polymer (B-2) obtained by graft polymerization of Polymer (B-1) with an ±,²-unsaturated carboxylic acid compound, and
(C): Polymer (C-1) that is a polymer having structural units derived from propylene and structural units derived from 1-butene, wherein the content of the structural units derived from propylene is 60 to 90 mol% based on all structural units of Polymer (C-1), the content of the structural units derived from 1-butene is 10 to 40 mol% based on all structural units of Polymer (C-1), and the melting peak of which is observed, or,
Polymer (C-2) obtained by graft polymerization of Polymer (C-1) with an ±,²-unsaturated carboxylic acid compound.</p> |
