Thermoplastic resin composition and article using the same

• US 10,640,624 B2
• Filed: 12/12/2017
• Issued: 05/05/2020
• Est. Priority Date: 12/22/2016
• Status: Active Grant

• Current Assignee: Lotte Advanced Materials Co., Ltd. (Lotte Chemical Corporation)
• Original Assignee: Lotte Advanced Materials Co., Ltd. (Lotte Chemical Corporation)
• Inventors: Lee, Woo Jin
• Primary Examiner(s): Oyer, Andrew J.
• Application Number:
  US15/838,558
• Publication Number:
  US 20180179360A1
• Time in Patent Office: 875 Days
• CPC Class Codes: C08J 2300/22 Thermoplastic resins
• CPC Class Codes: C08K 2003/2227 of aluminium
• CPC Class Codes: C08K 3/013 Fillers, pigments or reinforcing additives
• CPC Class Codes: C08K 3/22 of metals
• CPC Class Codes: C08K 3/346 Clay
• CPC Class Codes: C08K 5/0016 Plasticisers
• CPC Class Codes: C08K 5/005 Stabilisers against oxidation, heat, light, ozone
• CPC Class Codes: C08K 5/0066 Flame-proofing or flame-retarding additives
• CPC Class Codes: C08K 5/521 Esters of phosphoric acids, e.g. of H3PO4
• CPC Class Codes: C08K 5/523 with hydroxyaryl compounds
• CPC Class Codes: C08L 21/00 Compositions of unspecified rubbers
• CPC Class Codes: C08L 2201/02 Flame or fire retardant/resistant
• CPC Class Codes: C08L 2201/08 Stabilised against heat, light or radiation or oxydation
• CPC Class Codes: C08L 23/0869 Acids or derivatives thereof
• CPC Class Codes: C08L 53/02 of vinyl-aromatic monomers and conjugated dienes
• 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

Abstract

Disclosed are a thermoplastic resin composition including (A) a polycarbonate resin; (B) an impact-reinforcing agent; (C) an anti-drip agent; (D) a phosphorus-based flame retardant; (E) an inorganic filler; and (F) boehmite, wherein the phosphorus-based flame retardant and the boehmite are included in a weight ratio of about 14:1 to about 15:1 and an article formed therefrom.

Claims

1. A thermoplastic resin composition, comprising:

(A) a polycarbonate resin;

(B) an impact-reinforcing agent;

(C) an anti-drip agent;

(D) a phosphorus-based flame retardant;

(E) an inorganic filler; and

(F) boehmite,

wherein the phosphorus-based flame retardant and the boehmite are included in a weight ratio of about 14;

1 to about 15;

1.

2. The thermoplastic resin composition of claim 1, wherein the polycarbonate resin has a weight average molecular weight of about 10,000 g/mol to about 200,000 g/mol.

3. The thermoplastic resin composition of claim 1, wherein the impact-reinforcing agent includes a rubber modified vinyl-based copolymer.

4. The thermoplastic resin composition of claim 3, wherein the rubber modified vinyl-based copolymer includes an ethylene-methylacrylate copolymer (EMA), an ethylene-ethyl acrylate copolymer (EEA), methylmethacrylate-butadiene-styrene (MBS), styrene-butadiene-styrene (SBS), a styrene-butadiene rubber (SBR), an ethylene-propylene rubber (EPM, EPR), an ethylene-propylene-diene copolymer (EPDM), a maleic anhydride modified EPM (EPM-g-MA), maleic anhydride modified SBS (SBS-g-MA), maleic anhydride modified EPDM (EPDM-g-MA), and/or an ethylene vinyl alcohol copolymer (EVOH).

5. The thermoplastic resin composition of claim 1, wherein the anti-drip agent includes a fluorinated olefin-based resin.

6. The thermoplastic resin composition of claim 1, wherein the phosphorus-based flame retardant is represented by Chemical Formula 1:

7. The thermoplastic resin composition of claim 6, wherein R³ to R⁶ are each independently an unsubstituted phenyl group and/or a phenyl group substituted with a methyl group, an ethyl group, an isopropyl group, a t-butyl group, an isobutyl group, an isoamyl group, and/or a t-amyl group.

8. The thermoplastic resin composition of claim 1, wherein the inorganic filler is a sheet-shaped filler.

9. The thermoplastic resin composition of claim 8, wherein the sheet-shaped filler is talc, mica, or a mixture thereof.

10. The thermoplastic resin composition of claim 8, wherein the sheet-shaped filler has an average thickness of about 30 nm to about 700 nm, an average particle size of about 0.65 μ

m to about 5.0 μ

m, and a ratio (diameter/thickness) of an average diameter and an average thickness of about 4 to about 30.

11. The thermoplastic resin composition of claim 1, wherein the thermoplastic resin composition includes:

about 50 wt % to about 80 wt % of (A) the polycarbonate resin;

about 10 wt % to about 15 wt % of (B) the impact-reinforcing agent;

about 0.1 wt % to about 3 wt % of (C) the anti-drip agent;

about 1.4 wt % to about 30 wt % of (D) the phosphorus-based flame retardant;

about 0.1 wt % to about 3 wt % of (E) the inorganic filler; and

about 0.1 wt % to about 2 wt % of (F) the boehmite,

each based on a total amount of (A)+(B)+(C)+(D)+(E)+(F) of the thermoplastic resin composition.

12. The thermoplastic resin composition of claim 1, wherein the thermoplastic resin composition further includes at least one of a release agent, a lubricant, a plasticizer, a heat stabilizer, a light stabilizer, a pigment, and a dye.

13. An article formed from the thermoplastic resin composition of claim 1.