EP0387903A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Thermoplastic resin composition
Assignee: Toyota Motor Corp
•
Filing: 1990-03-16
•
Granted: —
•
Expires: 2010-03-16
Abstract
Abstract A polypropylene thermoplastic resin composition comprising (a) a modified crystalline polypropylene of a crystalline polypropylene comprising said modified crystalline polypropylene and (b) a modified polyamide obtained by partially or wholly grafting a polyamide with a clay mineral. A polypropylene thermoplastic resin composition comprising, in addition to the above polypropylene thermoplastic resin composition comprising the components (a) and (b), one or any combination of the following components (c), (d) and (e): (c) an ethylene-α-olefin copolymer rubber or a modified ethylene-α-olefin copolymer rubber, (d) a block copolymer between a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, a hydrogenation product of said block copolymer, or a modification product of said block copolymer, and (e) an inorganic filler. The modified polyamide as the component (b), obtained by modifying a polyamide with a clay mineral has good compatibility with or good dispersibility in the component (a), i.e. the modified crystalline polypropylene or the crystalline polypropylene comprising the modified crystalline polypropylene. Therefore, the polypropylene thermoplastic resin composition comprising these components (a) and (b) has excellent heat resistance and excellent impact resistance.
Inventors
- 👤 Osamu C/O Tokyo Head Office Fukui
- 👤 Kiyoshi C/O Sakai Factory Tsutsui
- 👤 Tomohiko C/O Sakai Factory Akagawa
- 👤 Ikunori C/O Sakai Factory Sakai
- 👤 Takao C/O Head Office Nomura
- 👤 Takeyoshi C/O Head Office Nishio
- 👤 Toshio C/O Head Office Yokoi
- 👤 Nobuya C/O Head Office Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 14:56
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/006; C08K; C08K3/00; C08K3/34; C08K3/346; C08L51/06; C08L53/00; C08L53/005; C08L53/02; C08L53/025; C08L77/00
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
69 words
A polypropylene thermoplastic resin composition comprising: 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5 % by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially or wholly modifying a polyamide with a clay mineral.
Claim 2
Dependent Claim
69 words
A polypropylene thermoplastic resin composition comprising: 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5 % by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially or wholly modifying a polyamide with a clay mineral.
Claim 3
Dependent Claim
25 words
A polypropylene thermoplastic resin composition according to Claim 1, comprising: 80-20% by weight of the component (a), and 20-80% by weight of the component (b).
Claim 4
Dependent Claim
55 words
A polypropylene thermoplastic resin composition according to Claim 1, wherein the crystalline polypropylene is a crystalline propylene homopolymer, an ethylene-propylene random copolymer having an ethylene content of not more than 5% by weight, or an ethylene-propylene block copolymer having an ethylene content of 3-15% by weight and has a melt index of 0.3-70 g/10 min.
Claim 5
Dependent Claim
39 words
A polypropylene thermoplastic resin composition according to Claim 1, wherein the unsaturated carboxylic acid is a member selected from the group consisting of acrylic acid, methacrylic acid , maleic acid, itaconic acid, fumaric acid, citraconic acid and crotonic acid.
Claim 6
Dependent Claim
46 words
A polypropylene thermoplastic resin composition according to Claim 1, wherein the derivative of an unsaturated carboxylic acid is a member selected from the group consisting of maleic anhydride, itaconic anhydride, citraconic anhydride, glycidyl methacrylate, 2-hydroxyethyl methacrylate, polyethylene glycol methacrylate, N-methylolmethacrylamide, calcium methacrylate, gammamethacryloxypropyltrimethoxysilane, acrylamide and methacrylamide.
Claim 7
Dependent Claim
30 words
A polypropylene thermoplastic resin composition according to Claim 1, wherein the modified polypropylene has a grafting degree of 0.03% or more and has a melt index of 0.5-200 g/10 min.
Claim 8
Dependent Claim
22 words
A polypropylene thermoplastic resin composition according to Claim 1, wherein the polyamide is nylon-6, nylon-6,6, nylon-6,10, nylon-9, nylon-11, nylon-12, nylon-6,6/6 or nylon-12,12.
Claim 9
Dependent Claim
34 words
A polypropylene thermoplastic resin composition according to Claim 1, wherein the clay mineral consists mainly of a silicate of layer structure having four sides each of 0.002-1 um and a thickness of 6-20 Å.
Claim 10
Dependent Claim
31 words
A polypropylene thermoplastic resin composition according to Claim 7, wherein the clay mineral is a member selected from the group consisting of montmorillonite, saponite, beidellite, nontronite, hectorite, stevensite, vermiculite and halloysite.
Claim 11
Dependent Claim
119 words
A polypropylene thermoplastic resin composition comprising: 100 parts by weight of a polypropylene thermoplastic resin composition comprising 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5% by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially or wholly modifying a polyamide with a clay mineral, and 1-100 parts by weight of (c) an etylene-α-olefin copolymer rubber or a modified ethylene-α-olefin copolymer rubber obtained by partially or wholly grafting an etylene-α-olefin copolymer rubber with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid.
Claim 12
Dependent Claim
119 words
A polypropylene thermoplastic resin composition comprising: 100 parts by weight of a polypropylene thermoplastic resin composition comprising 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5% by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially or wholly modifying a polyamide with a clay mineral, and 1-100 parts by weight of (c) an etylene-α-olefin copolymer rubber or a modified ethylene-α-olefin copolymer rubber obtained by partially or wholly grafting an etylene-α-olefin copolymer rubber with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid.
Claim 13
Dependent Claim
31 words
A polypropylene thermoplastic resin composition according to Claim 10, Wherein the modified etylene-α-olefin copolymer rubber has a grafting degree of 0.05-5.0% by weight and a melt index of 0.01-20 g/10 min.
Claim 14
Dependent Claim
156 words
A polypropylene thermoplastic resin composition comprising: 100 parts by weight of a polypropylene thermoplastic resin composition comprising 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative if an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5% by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially or wholly modifying a polyamide with a clay mineral, and 1-100 parts by weight of (d) a block copolymer represented by the formula A-(B-A) n (A is a polymer block of a monovinyl-substitituted aromatic hydrocarbon, B is an elastomeric polymer block of a conjugated diene, and n is an integer of 1-5), a hydrogenated block copolymer obtained by hydrogenating said block copolymer, or a modified block copolymer obtained by grafting said block copolymer with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid.
Claim 15
Dependent Claim
156 words
A polypropylene thermoplastic resin composition comprising: 100 parts by weight of a polypropylene thermoplastic resin composition comprising 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative if an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5% by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially or wholly modifying a polyamide with a clay mineral, and 1-100 parts by weight of (d) a block copolymer represented by the formula A-(B-A) n (A is a polymer block of a monovinyl-substitituted aromatic hydrocarbon, B is an elastomeric polymer block of a conjugated diene, and n is an integer of 1-5), a hydrogenated block copolymer obtained by hydrogenating said block copolymer, or a modified block copolymer obtained by grafting said block copolymer with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid.
Claim 16
Dependent Claim
28 words
A polypropylene thermoplastic resin composition according to Claim 12, wherein the monovinyl-substituted aromatic hydrocarbon is styrene, α-methylstyrene, vinyltoluene or vinylnaphthalene and the conjugated diene is butadiene or/and isoprene.
Claim 17
Dependent Claim
89 words
A polypropylene thermoplastic resin composition comprising: 100 parts by weight of a polypropylene thermoplastic resin composition comprising 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5% by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially or wholly modifying a polyamide with a clay mineral, and 5-150 parts by weight of (e) an inorganic filler.
Claim 18
Dependent Claim
89 words
A polypropylene thermoplastic resin composition comprising: 100 parts by weight of a polypropylene thermoplastic resin composition comprising 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5% by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially or wholly modifying a polyamide with a clay mineral, and 5-150 parts by weight of (e) an inorganic filler.
Claim 19
Dependent Claim
21 words
A polypropylene thermoplastic resin composition according to Claim 14, wherein the inorganic filler is a powdery filler or a fibrous filler.
Claim 20
Dependent Claim
39 words
A polypropylene thermoplastic resin composition according to Claim 15, wherein the powdery filler is at least one member selected from the group consisting of metal oxides, metal hydroxides, metal carbonates, metal silicates, metal borates, metal phosphates and metal sulfates.
Claim 21
Dependent Claim
42 words
A polypropylene thermoplastic resin composition according to Claim 15, wherein the fibrous filler is at least one member selected from the group consisting of a glass fiber, a potassium titanate fiber, a ceramic fiber, wollastonite, a carbon fiber and a SUS fiber.
Claim 22
Dependent Claim
209 words
A polypropylene thermoplastic resin composition comprising: 100 parts by weight of a polypropylene thermoplastic resin composition comprising 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5% by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially of wholly modifying a polyamide with a clay mineral, and any combination of 1-100 parts by weight of (c) an ethylene-α-olefin copolymer rubber or a modified ethylene-α-olefin copolymer rubber obtained by partially of wholly grafting an ethylene-α-olefin copolymer rubber with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, 1-100 parts by weight of (d) a block copolymer represented by the general formula A-(B-A) n (A is a polymer block of a monovinyl-substituted aromatic hydrocarbon, B is an elastomeric polymer block of a conjugated diene, and n is an integer of 1-5), a hydrogenated block copolymer obtained by hydrogenating said block copolymer, or a modified block copolymer obtained by grafting said block copolymer with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, and, 5-150 parts by weight of (e) an inorganic filler.
Claim 23
Dependent Claim
209 words
A polypropylene thermoplastic resin composition comprising: 100 parts by weight of a polypropylene thermoplastic resin composition comprising 95-5% by weight of (a) a modified polypropylene obtained by grafting a crystalline polypropylene with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, or a crystalline polypropylene comprising at least 5% by weight of said modified polypropylene, and 5-95% by weight of (b) a modified polyamide obtained by partially of wholly modifying a polyamide with a clay mineral, and any combination of 1-100 parts by weight of (c) an ethylene-α-olefin copolymer rubber or a modified ethylene-α-olefin copolymer rubber obtained by partially of wholly grafting an ethylene-α-olefin copolymer rubber with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, 1-100 parts by weight of (d) a block copolymer represented by the general formula A-(B-A) n (A is a polymer block of a monovinyl-substituted aromatic hydrocarbon, B is an elastomeric polymer block of a conjugated diene, and n is an integer of 1-5), a hydrogenated block copolymer obtained by hydrogenating said block copolymer, or a modified block copolymer obtained by grafting said block copolymer with an unsaturated carboxylic acid or/and a derivative of an unsaturated carboxylic acid, and, 5-150 parts by weight of (e) an inorganic filler.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.