JP2014196422A5 - - Google Patents

Claims (8)

For 100 parts by weight of a base component containing an unused polyolefin polymer,
(D) A water storage material in which porous particles are filled with an aqueous medium, wherein the porous particles are composed of a hydrophobic polymer, the aqueous medium contains an amphiphilic polymer, and the filling ratio of the aqueous medium is A resin composition obtained by melt-kneading 1 to 5 parts by weight of a water storage material that is 30 to 70% by weight with respect to the total weight of the water storage material. Polypropylene resin,
If necessary, 100 parts by weight of a base component composed of ethylene and an ethylene / α-olefin copolymer composed of at least one α-olefin selected from α-olefins having 3 to 8 carbon atoms Against
(D) A water storage material in which porous particles are filled with an aqueous medium, wherein the porous particles are composed of a hydrophobic polymer, the aqueous medium contains an amphiphilic polymer, and the filling ratio of the aqueous medium is A resin composition obtained by melt-kneading 1 to 5 parts by weight of a water storage material that is 30 to 70% by weight with respect to the total weight of the water storage material. The base material component is
(A) (a-1) Content of structural unit derived from propylene having a melt flow rate (MFR, 230 ° C., 21.16 N load) measured by a method according to JIS K 7210 of 10 to 300 g / 10 min. Is a propylene-based polymer 50 to 98 having a content of structural units derived from at least one α-olefin selected from ethylene and an α-olefin having 4 to 8 carbon atoms, from 98 to 100 mol%. 90 parts by weight,
(A-2) Propylene / ethylene copolymer 0-30 having an intrinsic viscosity [η] measured in 135 ° C. decalin of 1.5-9 dl / g and a content of structural units derived from ethylene of 30-60 mol% Parts by weight,
A polypropylene resin in which the total of (a-1) and (a-2) is 30 to 80 parts by weight;
(B) ethylene / α-olefin copolymers 1 to 30 consisting of ethylene and at least one α-olefin selected from α-olefins having 3 to 8 carbon atoms and having an ethylene content of 65 to 95 mol% The resin composition of Claim 2 which consists of a weight part (the sum total of (A) and (B) is 100 weight part). Wherein (D) amphiphilic polymer contained in the reservoir material, tree fat composition according to claim 1 or 2 is a structure represented by the following general formula (I).

[In General Formula (I), R ₁ is an alkyl group having 1 to 6 carbon atoms,
A and B are an alkyl group having 1 to 6 carbon atoms or a group represented by —Z—R ₂ —R ₃ , wherein Z is a structure of —C _r H _2r O— (r is 1 to Each may be the same or different,
R ₂ is a structure of — (C ₂ H ₄ O—) _n (C ₃ H ₆ O—) _m (m is 0 or an integer of 1 to 4, and n is an integer of 1 to 12, respectively) The sequence of units repeated n and m times may be block or random,
R ₃ is an OH group or an alkyl group having 1 to 6 carbon atoms,
x is 0 or an integer of 1 to 3,
y is an integer of 0 or 1 to 3,
Molecules represented by the general formula (I) always have at least one of the groups represented by -Z-R ₂ -R _3. ] In the general formula (I),
A is a methyl group or a group of —Z—R ₂ —R ₃ ,
B is a methyl group;
5. The structure according to claim 4, wherein R ₂ has a structure of — (C ₂ H ₄ O—) _n (C ₃ H ₆ O—) _m (m is 1 or 2, and n is an integer of 5 to 9). Resin composition.   The melt flow rate (MFR, 230 ° C., 21.16 N load) of the (a-1) propylene-based polymer is 10 to 100 g / 10 min, and the isotactic pentad fraction (mmmm) is 95.0 to 99. The resin composition according to claim 3, which is 0.0.   The melt flow rate (MFR, 230 ° C., 21.16 N load) of the (a-1) propylene polymer is 10 to 100 g / 10 min, and the isotactic pentad fraction (mmmm) is 96.5 to 99. The resin composition according to claim 3, which is 0.0.   The molded object which consists of a resin composition of any one of Claims 1-7.