GRAFT COPOLYMER, CROSSLINKED PARTICLES, GRAFT CROSSLINKED PARTICLES, RUBBERY POLYMER, AND THERMOPLASTIC RESIN COMPOSITION USING SAME
Provided is a graft copolymer that has an excellent impact-resistance-imparting effect and that can provide a thermoplastic resin composition excellent in weather resistance and color developability. A graft copolymer (C) obtained by graft-polymerizing one or two or more monomers (B), which are selected from (meth)acrylic acid esters, aromatic vinyls, vinyl cyanides, N-substituted maleimides, and maleic acid, onto a composite rubber-like polymer (A), which is obtained by polymerizing a mixture (Ac) containing a polyorganosiloxane (Aa) and an acrylic acid ester (Ab) after forming a miniemulsion in water solvent. A thermoplastic resin composition that contains the graft copolymer (C) and a thermoplastic resin (D).
1 . A graft copolymer (C) obtained by graft-polymerizing one or two or more monomers (B), which are selected from (meth)acrylic acid esters, aromatic vinyls, vinyl cyanides, N-substituted maleimides, and maleic acid, onto a composite rubber-like polymer (A), which is obtained by polymerizing a mixture (Ac) containing a polyorganosiloxane (Aa) and an acrylic acid ester (Ab) after forming a miniemulsion in water solvent.
2 . (canceled)
3 . (canceled)
4 . (canceled)
5 . A thermoplastic resin composition comprising: the graft copolymer (C) according to claim 1 ; and a thermoplastic resin (D).
6 . (canceled)
7 . A molded article obtained by molding the thermoplastic resin composition according to claim 5 .
8 . Crosslinked particles (A-I) obtained by polymerizing a monomer mixture (i-I) containing a di(meth)acrylic acid ester (a) having a number average molecular weight (Mn) of 800 to 9,000 and represented by formula (1):
wherein X represents a divalent residue constituted by at least one diol selected from polyalkylene glycols, polyester diols, and polycarbonate diols, and R 1a and R 1b each independently represent H or CH 3 .
9 . (canceled)
10 . (canceled)
11 . The crosslinked particles (A-I) according to claim 8 , wherein the monomer mixture (i-I) contains the di(meth)acrylic acid ester (a), an aromatic vinyl (b), and a vinyl cyanide (c), and a proportion of the aromatic vinyl (b) in 100% by mass of a total of the aromatic vinyl (b) and the vinyl cyanide (c) is 60% to 90% by mass.
12 . (canceled)
13 . (canceled)
14 . Graft crosslinked particles (B-I) obtained by graft-polymerizing a monomer onto the crosslinked particles (A-I) according to claim 8 .
15 . (canceled)
16 . (canceled)
17 . A thermoplastic resin composition comprising: the crosslinked particles (A-I) according to claim 8 and a thermoplastic resin (D-I).
18 . A molded article obtained by molding the thermoplastic resin composition according to claim 17 .
19 . Crosslinked particles (A-II) having a volume average particle size of 0.07 to 2.0 μm and obtained by polymerizing a monomer mixture (i-II) containing a di(meth)acrylic acid ester (a) and a mono(meth)acrylic acid component (d), wherein a content of the di(meth)acrylic acid ester (a) in 100% by mass of the monomer mixture (i-II) is 20% to 80% by mass, the di(meth)acrylic acid ester (a) having a number average molecular weight of 800 to 9,000 and being represented by formula (1):
wherein X represents a divalent residue constituted by at least one diol selected from polyalkylene glycols, polyester diols, and polycarbonate diols, and R 1a and R 1b each independently represent H or CH 3 .
20 . (canceled)
21 . (canceled)
22 . (canceled)
23 . (canceled)
24 . Graft crosslinked particles (B-II) obtained by graft-polymerizing one or more monomers selected from (meth)acrylic acid esters, aromatic vinyls, vinyl cyanides, maleimides, and maleic anhydride onto the crosslinked particles (A-II) according to claim 19 .
25 . (canceled)
26 . (canceled)
27 . A thermoplastic resin composition comprising: the crosslinked particles (A-II) according to claim 19 and a thermoplastic resin (D-II).
28 . A molded article obtained by molding the thermoplastic resin composition according to claim 27 .
29 . A rubbery polymer (A-III) that is a miniemulsion polymerization reaction product of an alkyl (meth)acrylate.
30 . The rubbery polymer (A-III) according to claim 29 , wherein the rubbery polymer (A-III) is a miniemulsion polymerization reaction product of a mixture (i-III) containing an alkyl (meth)acrylate, a hydrophobe, and an emulsifier.
31 . (canceled)
32 . (canceled)
33 . A graft copolymer (B-III) comprising: the rubbery polymer (A-III) according to claim 29 ; and at least one monomer selected from aromatic vinyl compounds, (meth)acrylic acid esters, and vinyl cyanide compounds graft-polymerized onto the rubbery polymer (A-III).
34 . (canceled)
35 . (canceled)
36 . A thermoplastic resin composition comprising the graft copolymer (B-III) according to claim 33 .
37 . A molded article obtained by molding the thermoplastic resin composition according to claim 36 .
38 . A graft crosslinked particles (B-I) according to claim 14 ; and a thermoplastic resin (D-I).
39 . A graft crosslinked particles (B-II) according to claim 24 ; and a thermoplastic resin (D-II).