| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aqueous resin dispersion expressing excellent adhesion to various resin molded articles composed of polyolefin such as polypropylene, synthetic rubber, unsaturated polyester, epoxy resin, urethane resin, etc., and to metals such as steel sheet, aluminum, etc. <P>SOLUTION: There is provided an aqueous resin dispersion of a thermoplastic elastomer (A) comprising a propylene-based elastomer (A-3) and isotactic polypropylene (A-4). The elastomer (A-3) has features that: (1) it includes (a) 45-98 mol% of a unit derived from propylene, (b) 1-30 mol% of a unit derived from 4-20C α-olefin, and (c) 1-30 mol% of a unit derived from ethylene (here, the total of constituent units derived from propylene, from ethylene and from the 4-20C α-olefin is 100 mol%); (2) its intrinsic viscosity [η] measured at 135°C in decalin is 0.01-10 dL/g; and (3) its molecular weight distribution (Mw/Mn) is 4.0 or less. <P>COPYRIGHT: (C)2012,JPO&INPIT |
