Flame-retarding thermoplastic resin composition

• US 6,756,430 B2
• Filed: 06/12/2001
• Issued: 06/29/2004
• Est. Priority Date: 06/13/2000
• Status: Expired due to Fees

• Current Assignee: Mitsui Chemicals Incorporated (Mitsui Chemicals)
• Original Assignee: Mitsui Chemicals Incorporated (Mitsui Chemicals)
• Inventors: Matsuda, Yuichi, Hashimoto, Mikio, Sakai, Ikunori
• Primary Examiner(s): SZEKELY, PETER A
• Application Number:
  US09/878,424
• Publication Number:
  US 20020013392A1
• Time in Patent Office: 1,113 Days
• Field of Search: 524/100-101, 524/138, 524/387, 524/394, 524/416, 524/424, 524/432-433, 524/436-437
• US Class Current: 524/100
• CPC Class Codes: C08K 5/0091 Complexes with metal-heteroatom-bonds
• CPC Class Codes: C08K 5/053 Polyhydroxylic alcohols
• CPC Class Codes: C08K 5/3492 Triazines
• CPC Class Codes: C08K 5/34928 Salts
• CPC Class Codes: C08K 5/51 Phosphorus bound to oxygen

Abstract

A flame-retarding thermoplastic resin composition which is composed essentially of

(A) a component of thermoplastic resin,

(B) a component of nitrogen atom-containing phosphatic compound,

(C) a component of hydroxyl group-containing compound or partly esterified product thereof and

(D) a component of neutralizer for acids,

with optional component (E) of triazine derivative or (F) of metal alkoxide, wherein the proportion of each component is such that the component (A) is in the range from 60 to 90 parts by weight, the sum of the components (B)+(C) is in the range from 10 to 40 parts by weight and the component (D) is in the range from 0.1 to 5 parts by weight, per 100 parts by weight of the total sum of (A)+(B)+(C), respectively, wherein the weight ratio of (B)/(C) amounts to at least 1.

Claims

1. A flame-retarding thermoplastic resin composition comprising

(A) a thermoplastic resin,

(B) a nitrogen atom-containing phosphatic compound,

(C) a hydroxyl group-containing compound or partly esterified product thereof and

(D) a at least one neutralizer for acids selected from the group consisting of hydrotalcite, magnesium oxide, aluminum hydroxide and magnesium hydroxide, wherein the proportion of each component is such that the component (A) is in the range from 65 to 85 parts by weight, the sum of the components (B)+(C) is in the range from 15 to 35 parts by weight and the component (D) is in the range from 0.1 to 1 parts by weight, per 100 parts by weight of the total sum of (A)+(B)+(C), respectively, wherein the weight ratio of (B)/(C) amounts to 1-5.

4. The flame-retarding thermoplastic resin composition of claim 1 wherein the thermoplastic resin of the component (A) comprises at least one resin selected from the group consisting of polyolefm resins, polystyrene resins, polyamide resins, polyester resins, polycarbonate resins, polyphenylene ether resins and modified polyphenylene ether resins.

5. The flame-retarding thermoplastic resin composition of claim 4 wherein the polyolefin resin comprises at least one resin selected from the group consisting of a polyethylene resin, polypropylene resin, poly-1-butene resin and poly-4-methyl-1-pentene resin.

6. The flame-retarding thermoplastic resin composition of claim 1 wherein the nitrogen atom-containing phosphatic compound of the component (B) comprises at least one compound selected from the group consisting of a melamine pyrophosphate, anunonium polyphosphate and melamine polyphosphate.

7. The flame-retarding thermoplastic resin composition of claim 4 wherein the nitrogen atom-containing phosphatic compound of the component (B) comprises at least one compound selected from the group consisting of a melamine pyrophosphate, ananonium polyphosphate and melamine polyphosphate.

8. The flame-retarding thermoplastic resin composition of claim 1 wherein the hydroxyl group-containing compound or the partly esterified product thereof of the component (C) comprises at least one compound or partly esterified product thereof selected from the group consisting of pentaerythritol, dipentaerythritol, a partly esterified pentaerythritol and a partly esterified dipentaerythritol.

9. The flame-retarding thermoplastic resin composition of claim 7 wherein the hydroxyl group-containing compound or the partly esterified product thereof of the component (C) comprises at least one compound or partly esterifled product thereof selected from the group consisting of pentaerythritol, dipentaerythritol, a partly esterified pentaerythritol and a partly esterified dipentaerythritol.

10. A formed article of flame-retarding resin obtained by subjecting the flame-retarding thermoplastic resin composition of claim 1 to a forming process.

11. A formed article of flame-retarding resin obtained by subjecting the flame-retarding thermoplastic resin composition of claim 9 to a forming process.

2. A flame-retarding thermoplastic resin composition comprising

(A) a thermoplastic resin,

(B) a nitrogen atom-containing phosphatic compound,

(C) a hydroxyl group-containing compound or partly esterified product thereof,

(D) at least one neutralizer for acids selected from the group consisting of hvdrotalcite, magnesium oxide, aluminum hydroxide and magnesium hydroxide, and

(E) at least one triazine derivative selected from the group consisting of melamine, melainine cyanurate, melam, melem, mellon and melamine resin,

wherein the proportion of each of the components (A) to (E) is such that the thermoplastic resin (A) is in the range from 60 to 90 parts by weight, the sum of the components (B)+(C) is in the range from 10 to 40 parts by weight, the component (D) is in the range from 0.1 to 5 parts by weight and the component (E) is present in the range from 0.1 to 5 parts by weight, per 100 parts by weight of the total sum of (A)+(B)+(C), respectively, wherein the weight ratio of (B)/(C) amounts to at least 1.

12. The flame-retarding thermoplastic resin composition of claim 2 wherein the thermoplastic resin of the component (A) comprises at least one resin selected from the group consisting of polyolefin resins, polystyrene resins, polyamide resins, polyester resins, polycarbonate resins, polyphenylene ether resins and modified polyphenylene ether resins.

13. The flame-retarding thermoplastic resin composition of claim 12 wherein the polyolefin resin comprises at least one resin selected from the group consisting of a polyethylene resin, polypropylene resin, poly-1-butene resin and poly-4-methyl-1-pentene resin.

14. The flame-retarding thermoplastic resin composition of claim 2 wherein the nitrogen atom-containing phosphatic compound of the component (B) comprises at least one compound selected from the group consisting of a melamine pyrophosphate, ammonium polyphosphate and melamine polyphosphate.

15. The flame-retarding thermoplastic resin composition of claim 12 wherein the nitrogen atom-containing phosphatic compound of the component (B) comprises at least one compound selected from the group consisting of a melaniine pyrophosphate, animonium polyphosphate and melamine polyphosphate.

16. The flame-retarding thermoplastic resin composition of claim 2 wherein the hydroxyl group-containing compound or the partly esterified product thereof of the component (C) comprises at least one compound or partly esterified product thereof selected from the group consisting of pentaerythritol, dipentaerythritol, a partly esterified pentaerythritol and a partly esterified dipentaerythritol.

17. The flame-retarding thermoplastic resin composition of claim 15 wherein the hydroxyl group-containing compound or the partly esterified product thereof of the component (C) comprises at least one compound or partly esterified product thereof selected from the group consisting of pentaerythricol, dipentaerythritol, a partly esterified pentaerythritol and a partly esterified dipentaerythritol.

18. The flame-retarding thermoplastic resin composition of claim 2 wherein the triazine derivative of the component (E) comprises at least one compound selected from the group consisting of melamine and melamine cyanurate.

19. The flame-retarding thermoplastic resin composition of claim 17, wherein the triazine derivative of the component (E) comprises at least one compound selected from the group consisting of melamine and melamine cyanurate.

20. A formed article of flame-retarding resin obtained by subjecting the flame-retarding thermoplastic resin composition of claim 2 to a forming process.

21. A formed article of flame-retarding resin obtained by subjecting the flame-retarding thermoplastic resin composition of claim 19 to a forming process.

3. A flame-retarding thermoplastic resin composition comprising

(A) thermoplastic resin,

(B) nitrogen atom-containing phosphatic compound,

(C) hydroxyl group-containing compound or partly esterified product thereof,

(D) neutralizer for acids and

(F) metal alkoxide,

wherein the proportion of each component is such that the component (A) is in the range from 60 to 90 parts by weight, the sum of the components (B)+(C) is in the range from 10 to 40 parts by weight, the component (D) is in the range from 0.1 to 5 parts by weight and the component (F) is in the range from 0.01 to 5 parts by weight, per 100 parts by weight of the total sum of (A)+(B)+(C), respectively, wherein the weight ratio of (B)/(C) amounts to at least 1.

22. The flame-retarding thermoplastic resin composition of claim 3 wherein the thermoplastic resin of the component (A) comprises at least one resin selected from the group consisting of polyolefin resins, polystyrene resins, polyamide resins, polyester resins, polycarbonate resins, polyphenylene ether resins and modified polyphenylene ether resins.

23. The flame-retarding thermoplastic resin composition of claim 22 wherein the polyolefin resin comprises at least one resin selected from the group consisting of a polyethylene resin, polypropylene resin, poly-1-butene resin and poly-4-methyl-1-pentene resin.

24. The flame-retarding thermoplastic resin composition of claim 3 wherein the nitrogen atom-containing phosphatic compound of the component (B) comprises at least one compound selected from the group consisting of a melamine pyrophosphate, ammonium polyphosphate and melamine polyphosphate.

25. The flame-retarding thermoplastic resin composition of claim 22 wherein the nitrogen atom-containing phosphatic compound of the component (B) comprises at least one compound selected from the group consisting of a melamine pyrophosphate, ammonium polyphosphate and melamine polyphosphate.

26. The flame-retarding thermoplastic resin composition of claim 3 wherein the hydroxyl group-containing compound or the partly esterified product thereof of the component (C) comprises at least one compound or partly esterified product thereof selected from the group consisting of pentaerythritol, dipentaerythritol, a partly esterified pentaerythritol and a partly esterified dipentaerythritol.

27. The flame-retarding thermoplastic resin composition of claim 25 wherein the hydroxyl group-containing compound or the partly esterified product thereof of the component (C) comprise at least one compound or partly esterified product thereof selected from the group consisting of pentaerythritol, dipentaerythritol, a partly esterified pentaerythritol and a partly esterified dipentaerythritol.

28. The flame-retarding thermoplastic resin composition of claim 3 wherein the neutralizer for acids of component (D) comprises at least one neutralizer selected from the group consisting of hydrotalcite, metal basic oxides and metal basic hydroxides.

29. The flame-retarding thermoplastic resin composition of claim 27 wherein the neutralizer for acids of component (D) comprises at least one neutralizer selected from the group consisting of hydrotalcite, metal basic oxides and metal basic hydroxides.

30. The flame-retarding thermoplastic resin composition of claim 3 wherein the metal alkoxide of the component (F) comprises at least one titanium alkoxide.

31. The flame-retarding thermoplastic resin composition of claim 29 wherein the metal alkoxide of the component (F) comprises at least one titanium alkoxide.

32. A formed article of flame-retarding resin obtained by subjecting the flame-retarding thermoplastic resin composition of claim 3 to a forming process.

33. A formed article of flame-retarding resin obtained by subjecting the flame-retarding thermoplastic resin composition of claim 31 to a forming process.