Modified polypropylene resin composition

Claim 2

A modified polypropylene resin composition consisting of (1) 100 parts by weight of a resin composition consisting of (i) 1% to 99% by weight of at least one crystalline polypropylene resin (C) selected from the group consisting of (a) a modified polypropylene (A) obtained by graft copolymerizing onto a polypropylene (B) 0.01 to 10 parts by weight of an unsaturated carboxylic acid or the anhydride thereof and 0.01 to 10 parts by weight of an unsaturated aromatic monomer, per 100 parts by weight of the polypropylene (B), and (b) a composition comprising 5% by weight or more, based on the composition, of said modified polypropylene (A) and said polypropylene (B), and (ii) 99% to 1% by weight of at least one saturated polyester resin (D) comprising diol components and dicarboxylic acid components, at least 40 mole % of which are terephthalic acid, (2) 0.1 to 300 parts by weight of an epoxy group-containing polymer (E) which is (i) a copolymer of 99.9% to 50% by weight of ethylene and 0.1% to 50% by weight of at least one unsaturated epoxy compound selected from the group consisting of (a) glycidyl acrylate, (b) glycidyl methacrylate, (c) glycidyl itaconate, (d) allyl glycidyl ether, (e) 2-methylallyl glycidyl ether and (f) p-styryl glycidyl ether, and (ii) a copolymer of 99.9% to 50% by weight of ethylene, 0.1% to 50% by weight of the unsaturated epoxy compound as defined above and at least one ethylenically unsaturated compound selected from the group consisting of (a) vinyl acetate, (b) methyl acrylate, (c) ethyl acrylate, (d) methyl methacrylate, (e) vinyl chloride, (f) vinylidene chloride, and (g) isobutyl vinyl ether, (3) up to 5 parts by weight of a basic compound (F) optionally added as a reaction accelerator, (4) optionally, a filler (I) in an amount of an 0.01 to 300 parts by weight per 100 parts by weight of the resin composition (1), said polypropylene (B) being at least one crystalline polypropylene selected from the group consisting of (i) a crystalline propylene homopolymer, (ii) a crystalline propylene random copolymer which is a copolymer of propylene and at least one other alphaolefin, and (iii) a crystalline propylene block copolymer which comprises (a) a first segment containing a crystalline propylene homopolymer or a crystalline polypylene random copolymer of propylene and 6 mole % or less of at least one other alpha-olefin, and (b) a second segment containing a random copolymer of 10 mole % or more of ethylene and at least one other alpha-olefin, said unsaturated carboxylic acid or the anhydride thereof being at least one member selected from the group consisting of (i) acrylic acid, (ii) methacrylic acid, (iii) maleic acid, (iv) itaconic acid, (v) maleic anhydride, and (vi) itaconic anhydride, said unsaturated aromatic monomer being at least one member selected from the group consisting of (i) styrene, (ii) o-methylstyrene, (iii) p-methylstyrene, (iv) m-methylstyrene, (v) alpha-methylstyrene, and (vi) vinyltoluene, and the content of the saturated polyester resin (D) in said modified polypropylene resin composition being less than 50% by weight.

Claim 3

A modified polypropylene resin composition consisting of (1) 100 parts by weight of a resin composition consisting of (i) 1% to 99% by weight of at least one crystalline polypropylene resin (C) selected from the group consisting of (a) a modified polypropylene (A) obtained by graft copolymerizing onto a polypropylene (B) 0.01 to 10 parts by weight of an unsaturated carboxylic acid or the anhydride thereof and 0.01 to 10 parts by weight of an unsaturated aromatic monomer, per 100 parts by weight of the polypropylene (B), and (b) a composition comprising 5% by weight or more, based on the composition of said modified polypropylene (A) and said polypropylene (B), and (ii) 99% to 1% by weight of at least one saturated polyester resin (D) comprising diol components and dicarboxylic acid components, at least 40 mole % of which are terephthalic acid, (2) 0.1 to 300 parts by weight of an epoxy group-containing polymer (E) which is (i) a copolymer of 99.9% to 50% by weight of ethylene and 0.1% to 50% by weight of at least one unsaturated epoxy compound selected from the group consisting of (a) glycidyl acrylate, (b) glycidyl methacrylate, (c) glycidyl itaconate, (d) allyl glycidyl ether, (e) 2-methylallyl glycidyl ether and (f) p-styryl glycidyl ether, and (ii) a copolymer of 99.9% to 50% by weight of ethylene, 0.1% to 50% by weight of the unsaturated epoxy compound as defined above and at least one ethylenically unsaturated compound selected from the group consisting of (a) vinyl acetate, (b) methyl acrylate, (c) ethyl acrylate, (d) methyl methacrylate, (e) vinyl chloride, (f) vinylidene chloride, and (g) isobutyl vinyl ether, (3) up to 5 parts by weight of a basic compound (F) optionally added as a reaction accelerator, and (4) 0.01 to 300 parts by weight per 100 parts by weight of at least one rubber selected from the group consisting of (i) an ethylenic copolymer rubber (G), and (ii) a modified ethylenic copolymer rubber (H) obtained by graft copolymerizing onto an ethylenic copolymer rubber (G) a monomer consisting of 0.5 to 15 parts by weight of an unsaturated carboxylic acid or the anhydride thereof per 100 parts by weight of the ethylenic copolymer rubber (G), (4) optionally, a filler (I) in an amount of an 0.01 to 300 parts by weight per 100 parts by weight of the resin composition (1), said polypropylene (B) being at least one crystalline polypropylene selected from the group consisting of (i) a crystalline propylene homopolymer, (ii) a crystalline propylene random copolymer which is a copolymer of propylene and at least one other alphaolefin, and (iii) a crystalline propylene block copolymer which comprises (a) a first segment containing a crystalline propylene homopolymer or a crystalline polypylene random copolymer of propylene and 6 mole % or less of at least one other alpha-olefin, and (b) a second segment containing a random copolymer of 10 mole % or more of ethylene and at least one other alpha-olefin said ethylenic copolymer rubber (G) being at least one ethylene-alpha-olefin rubber selected from the group consisting of (i) an ethylene-alpha-olefin copolymer rubber which is a copolymer consisting of 15% to 85% by weight of ethylene and 85% to 15% by weight of an alpha-olefin, and (ii) an ethylene-alpha-olefin-nonconjugated diene copolymer rubber consisting of a terpolymer of 15% to 85% by weight of ethylene, 85% to 15% by weight of an alpha-olefin and 3% or less by weight of a nonconjugated diene, said unsaturated carboxylic acid or the anhydride thereof being at least one member selected from the group consisting of (i) acrylic acid, (ii) methacrylic acid, (iii) maleic acid, (iv) itaconic acid, (v) maleic anhydride, and (vi) itaconic anhydride, said unsaturated aromatic monomer being at least one member selected from the group consisting of (i) styrene, (ii) o-methylstyrene, (iii) p-methylstyrene, (iv) m-methylstyrene, (v) alpha-methylstyrene, and (vi) vinyltoluene, and the content of the saturated polyester resin (D) in said modified polypropylene resin composition being less than 50% by weight.

Claim 4

A modified polypropylene resin composition consisting of (1) 100 parts by weight of a resin composition consisting of (i) 1% to 99% by weight of at least one crystalline polypropylene resin (C) selected from the group consisting of (a) a modified polypropylene (A) obtained by graft copolymerizing onto a polypropylene (B) 0.01 to 10 parts by weight of an unsaturated carboxylic acid or the anhydride thereof and 0.01 to 10 parts by weight of an unsaturated aromatic monomer, per 100 parts by weight of the polypropylene (B), and (b) a composition comprising 5% by weight or more, based on the composition of said modified polypropylene (A) and said polypropylene (B), and (ii) 99% to 1% by weight of at least one saturated polyester resin (D) comprising diol components and dicarboxylic acid components, at least 40 mole % of which are terephthalic acid, (2) 0.1 to 300 parts by weight of an epoxy group-containing polymer (E) which is (i) a copolymer of 99.9% to 50% by weight of ethylene and 0.1% to 50% by weight of at least one unsaturated epoxy compound selected from the group consisting of (a) glycidyl acrylate, (b) glycidyl methacrylate, (c) glycidyl itaconate, (d) allyl glycidyl ether, (e) 2-methylallyl glycidyl ether and (f) p-styryl glycidyl ether, and (ii) a copolymer of 99.9% to 50% by weight of ethylene, 0.1% to 50% by weight of the unsaturated epoxy compound as defined above and at least one ethylenically unsaturated compound selected from the group consisting of (a) vinyl acetate, (b) methyl acrylate, (c) ethyl acrylate, (d) methyl methacrylate, (e) vinyl chloride, (f) vinylidene chloride, and (g) isobutyl vinyl ether, (3) up to 5 parts by weight of a basic compound (F) optionally added as a reaction accelerator, and (4) 0.01 to 300 parts by weight per 100 parts by weight of at least one rubber selected from the group consisting of (i) an ethylenic copolymer rubber (G), and (ii) a modified ethylenic copolymer rubber (H) obtained by graft copolymerizing onto an ethylenic copolymer rubber (G) a monomer consisting of 0.5 to 15 parts by weight of an unsaturated carboxylic acid or the anhydride thereof per 100 parts by weight of the ethylenic copolymer rubber (G), (4) optionally, a filler (I) in an amount of an 0.01 to 300 parts by weight per 100 parts by weight of the resin composition (1), said polypropylene (B) being at least one crystalline polypropylene selected from the group consisting of (i) a crystalline propylene homopolymer, (ii) a crystalline propylene random copolymer which is a copolymer of propylene and at least one other alphaolefin, and (iii) a crystalline propylene block copolymer which comprises (a) a first segment containing a crystalline propylene homopolymer or a crystalline polypylene random copolymer of propylene and 6 mole % or less of at least one other alpha-olefin, and (b) a second segment containing a random copolymer of 10 mole % or more of ethylene and at least one other alpha-olefin said ethylenic copolymer rubber (G) being at least one ethylene-alpha-olefin rubber selected from the group consisting of (i) an ethylene-alpha-olefin copolymer rubber which is a copolymer consisting of 15% to 85% by weight of ethylene and 85% to 15% by weight of an alpha-olefin, and (ii) an ethylene-alpha-olefin-nonconjugated diene copolymer rubber consisting of a terpolymer of 15% to 85% by weight of ethylene, 85% to 15% by weight of an alpha-olefin and 3% or less by weight of a nonconjugated diene, said unsaturated carboxylic acid or the anhydride thereof being at least one member selected from the group consisting of (i) acrylic acid, (ii) methacrylic acid, (iii) maleic acid, (iv) itaconic acid, (v) maleic anhydride, and (vi) itaconic anhydride, said unsaturated aromatic monomer being at least one member selected from the group consisting of (i) styrene, (ii) o-methylstyrene, (iii) p-methylstyrene, (iv) m-methylstyrene, (v) alpha-methylstyrene, and (vi) vinyltoluene, and the content of the saturated polyester resin (D) in said modified polypropylene resin composition being less than 50% by weight.

Claim 5

A modified polypropylene resin composition according to claim 1, in which the filler (I) is present in an amount of 0.01 to 300 parts by weight per 100 parts by weight of the resin composition (1).

Claim 6

A modified polypropylene resin composition according to claim 2, in which the filler (I) is present in an amount of 0.01 to 300 parts by weight per 100 parts by weight of the resin composition (1).

Claim 7

A modified polypropylene resin composition according to claim 1, wherein in the modified polypropylene (A), the unsaturated carboxylic acid or the anhydride thereof to be graft copolymerized is maleic anhydride and the unsaturated aromatic monomer is styrene.

Claim 8

A modified polypropylene resin composition according to claim 2, wherein in the modified polypropylene (A), the unsaturated carboxylic acid or the anhydride thereof to be graft copolymerized is maleic anhydride and the unsaturated aromatic monomer is styrene.

Claim 9

A modified polypropylene resin composition according to claim 3, wherein in the modified polypropylene (A), the unsaturated carboxylic acid or the anhydride thereof to be graft copolymerized is maleic anhydride and the unsaturated aromatic monomer is styrene.

Claim 10

A modified polypropylene resin composition according to claim 4, wherein in the modified polypropylene (A), the unsaturated carboxylic acid or the anhydride thereof to be graft copolymerized is maleic anhydride and the unsaturated aromatic monomer is styrene.

Claim 11

A modified polypropylene resin composition according to claim 1, wherein the saturated polyester resin (D) is at least one member selected from the group consisting of polyethylene terephthalate and polybutylene terephthalate.

Claim 12

A modified polypropylene resin composition according to claim 2, wherein the saturated polyester resin (D) is at least one member selected from the group consisting of polyethylene terephthalate and polybutylene terephthalate.

Claim 13

A modified polypropylene resin composition according to claim 3, wherein the saturated polyester resin (D) is at least one member selected from the group consisting of polyethylene terephthalate and polybutylene terephthalate.

Claim 14

A modified polypropylene resin composition according to claim 4, wherein the saturated polyester resin (D) is at least one member selected from the group consisting of polyethylene terephthalate and polybutylene terephthalate.

Claim 15

A modified polypropylene resin composition according to claim 1, wherein the basic compound (F) is at least one organic amine compound selected from the group consisting of benzyldimethylamine and 2,4,6-tris(dimethylaminomethyl)phenol.

Claim 16

A modified polypropylene resin composition according to claim 2, wherein the basic compound (F) is at least one organic amine compound selected from the group consisting of benzyldimethylamine and 2,4,6-tris(dimethylaminomethyl)phenol.

Claim 17

A modified polypropylene resin composition according to claim 3, wherein the basic compound (F) is at least one organic amine compound selected from the group consisting of benzyldimethylamine and 2,4,6-tris(dimethylaminomethyl)phenol.

Claim 18

A modified polypropylene resin composition according to claim 4, wherein the basic compound (F) is at least one organic amine compound selected from the group consisting of benzyldimethylamine and 2,4,6-tris(dimethylaminomethyl)phenol.

Claim 19

A modified polypropylene resin composition according to claim 2, wherein in the modified ethylenic copolymer rubber (H) the unsaturated carboxylic acid or the anhydride thereof to be graft copolymerized is maleic anhydride.

Claim 20

A modified polypropylene resin composition according to claim 4, wherein in the modified ethylenic copolymer rubber (H), the unsaturated carboxylic acid or the anhydride thereof to be graft copolymerized is maleic anhydride.

Claim 21

A modified polypropylene resin composition according to claim 2, wherein the ethylenic copolymer rubber (G) comprises at least one member selected from the group consisting of (i) a copolymer of ethylene, and either propylene or butene-1 and (ii) a terpolymer of ethylene, either propylene or butene-1, and a nonconjugated diene.

Claim 22

A modified polypropylene resin composition according to claim 4, wherein the ethylenic copolymer rubber (G) comprises at least one member selected from the group consisting of (i) a copolymer of ethylene, and either propylene or butene-1 and (ii) a terpolymer of ethylene, either propylene or butene-1, and a nonconjugated diene.

Claim 23

A modified polypropylene resin composition according to claim 3, wherein the filler (I) is at least one inorganic filler selected from the group consisting of glass fiber, potassium titanate whisker, talc, mica and calcium carbonate.

Claim 24

A modified polypropylene resin composition according to claim 4, wherein the filler (I) is at least one inorganic filler selected from the group consisting of glass fiber, potassium titanate whisker, talc, mica and calcium carbonate.