Flameproof Thermoplastic Resin Composition and Method for Preparing the Same

• US 20110034587A1
• Filed: 06/28/2010
• Published: 02/10/2011
• Est. Priority Date: 12/28/2007
• Status: Active Grant

• Current Assignee: Lotte Advanced Materials Co., Ltd. (Lotte Chemical Corporation)
• Original Assignee: Cheil Industries Incorporated
• Inventors: KONG, Seong Ho, SHIN, Kyung Hoon, HONG, Sang Hyun, LEE, Jin Seong, LEE, Seon Ae
• Granted Patent: US 8,367,754 B2
• Time in Patent Office: Days
• US Class Current: 523/220
• CPC Class Codes: C08K 3/016 Flame-proofing or flame-retarding additives
• CPC Class Codes: C08K 5/0066 Flame-proofing or flame-retarding additives
• CPC Class Codes: C08K 5/03 aromatic , e.g. C6H5-CH2-Cl
• CPC Class Codes: C08K 5/49 Phosphorus-containing compounds C08K5/0091 takes precedence
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 2666/04 Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• CPC Class Codes: C08L 2666/14 Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
• CPC Class Codes: C08L 2666/18 Polyesters or polycarbonates according to C08L67/00 - C08L69/00; Derivatives thereof
• CPC Class Codes: C08L 2666/24 Graft or block copolymers according to groups C08L51/00, C08L53/00 or C08L55/02; Derivatives thereof
• CPC Class Codes: C08L 51/04 grafted on to rubbers
• CPC Class Codes: C08L 55/02 ABS [Acrylonitrile-Butadiene-Styrene] polymers
• CPC Class Codes: C08L 69/00 Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• CPC Class Codes: C09K 21/00 Fireproofing materials for use in a particular application, see the relevant places, e.g. fireproofing of wood B27K, of polymers C08, of textiles D06M, of paper D21H; fireproof paints C09D5/18
• CPC Class Codes: C09K 21/04 containing phosphorus
• CPC Class Codes: C09K 21/08 containing halogen
• CPC Class Codes: C09K 21/12 containing phosphorus

Abstract

A flameproof thermoplastic resin composition comprises (A) 100 parts by weight of a thermoplastic resin; (B) about 1 to about 40 parts by weight of a sublimational filler; and (C) about 1 to about 30 parts by weight of a flame retardant. The thermoplastic resin composition can solve the problems of high specific gravity and deterioration of flame retardancy caused by adding a conventional filler.

Claims

1. A flameproof thermoplastic resin composition comprising (A) 100 parts by weight of a thermoplastic resin;

(B) about 1 to about 40 parts by weight of a sublimational filler; and

(C) about 1 to about 30 parts by weight of a flame retardant.

2. The flameproof thermoplastic resin composition of claim 1, wherein said thermoplastic resin (A) comprises an aromatic vinyl resin, a rubber modified aromatic vinyl resin, a polyphenylene ether resin, a polycarbonate resin, a polyester resin, a methacrylate resin, a polyarylene sulfide resin, a polyamide resin, a polyvinylchloride resin, a polyolefin resin, or a mixture thereof.

3. The flameproof thermoplastic resin composition of claim 1, wherein said sublimational filler (B) has a sublimation temperature of about 200 to about 500°

C.

4. The flameproof thermoplastic resin composition of claim 1, wherein said sublimational filler (B) has an average particle diameter of about 1 to about 150 μ

m, and wherein 90% of the total volume fraction of said sublimational filler (B) has an average particle diameter of about 1 to about 20 μ

m.

5. The flameproof thermoplastic resin composition of claim 1, wherein said sublimational filler (B) comprises terephthalic acid, isophthalic acid or a mixture thereof.

6. The flameproof thermoplastic resin composition of claim 1, wherein said flame retardant (C) comprises a phosphorus-containing flame retardant.

7. The flameproof thermoplastic resin composition of claim 1, wherein said flame retardant comprises a halogen-containing flame retardant.

8. The flameproof thermoplastic resin composition of claim 6, wherein said phosphorus flame retardant comprises red phosphorus, phosphate, phosphonate, phosphinate, phosphine oxide, phosphazene, a metal salt thereof, or a mixture thereof.

9. The flameproof thermoplastic resin composition of claim 7, wherein said halogen-containing flame retardant comprises decabromo diphenyl oxide, decabromo diphenyl ethane, decabromodiphenyl ether, tetrabromo bisphenol A, tetrabromo bisphenol A-epoxy oligomer, brominated epoxy oligomer, octabromo trimethylphenyl phosphate, ethylene bistetrabromophthalimide, 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine, 1,2,3,4,7,8,9,10,13,13,14-dodecachloro-1,4,4a,5,6,6a,7,10,10a,11,12,12a-dodecahydro-1,4,7,10-dimethanodibenzo(a,e) cyclooctene, or a mixture thereof.

10. The flameproof thermoplastic resin composition of claim 7, further comprising about 1 to about 10 parts by weight of an antimony oxide.

11. The flameproof thermoplastic resin composition of claim 8, wherein said phosphate is represented by the following Chemical Formula 1:

12. The flameproof thermoplastic resin composition of claim 1, wherein said resin composition further comprises at least one additive selected from the group consisting of flame retardant aids, plasticizers, heat stabilizers, anti-dripping agents, antioxidants, compatibilizers, light-stabilizers, releasing agents, lubricants, impact modifiers, coupling agents, antistatic agents, dispersant, weather resistant agents, pigments, dyes, inorganic fillers, and mixtures thereof.

13. A molded article prepared by extruding the flameproof thermoplastic resin composition of claim 1, wherein the molded article has a specific gravity of about 1.1 to about 1.5 measured in accordance with ASTM D792 and flame retardancy of V-0 measured in accordance with UL-94 at a thickness of 1/12″

.

14. A molded article prepared by extruding the flameproof thermoplastic resin composition of claim 10, wherein the molded article has an Izod impact strength of about 6.8 to 15 kgf·

cm/cm measured in accordance with ASTM-D256 at a thickness of ⅛

″

, a specific gravity of about 1.1 to about 1.5 measured in accordance with ASTM D792, and flame retardancy of V-0 measured in accordance with UL-94 at a thickness of 1/12″

.

15. A method for preparing a flameproof thermoplastic resin composition, the method comprising extruding a thermoplastic resin composition at a temperature of 120 to 280°

C., wherein said thermoplastic composition comprises 100 parts by weight of a thermoplastic resin, about 1 to about 40 parts by weight of a sublimational filler, and about 1 to about 30 parts by weight of a flame retardant.

16. A method for improving flame retardancy comprising adding a sublimational filler which has a sublimation temperature of about 200 to about 500°

C. to a flameproof resin comprising a thermoplastic resin and a flame retardant.