Information
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Patent Application
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20070208119
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Publication Number
20070208119
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Date Filed
March 01, 200717 years ago
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Date Published
September 06, 200716 years ago
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CPC
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US Classifications
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International Classifications
Abstract
Disclosed is a thermoplastic resin composition contains including a methacrylic resin having a ring structure in a main chain thereof and a glass transition temperature of 110° C. or higher, and at least one kind of metal compound selected from metal salts, metal complexes, and metal oxides, wherein a content of the metal compound in the composition is from 10 to 10,000 ppm in terms of metal atom based on a mass of the methacrylic resin, and a process for producing such a thermoplastic resin composition, the process including carrying out, when preparing a methacrylic resin having a ring structure in a main chain thereof and a glass transition temperature of 110° C. or higher, cyclization condensation reaction using a catalyst to form the ring structure; and then adding a deactivator of the catalyst.
Claims
- 1. A thermoplastic resin composition comprising a methacrylic resin having a ring structure in a main chain thereof and a glass transition temperature of 110° C. or higher, and at least one kind of metal compound selected from metal salts, metal complexes, and metal oxides, wherein a content of the metal compound in the composition is from 10 to 10,000 ppm in terms of metal atom based on a mass of the methacrylic resin.
- 2. The thermoplastic resin composition according to claim 1, wherein the metal compound is a salt of a representative metal element.
- 3. The thermoplastic resin composition according to claim 2, wherein the representative metal element is calcium, magnesium, or zinc.
- 4. The thermoplastic resin composition according to claim 1, wherein the composition comprises an organic acid.
- 5. The thermoplastic resin composition according to claim 1, wherein the metal compound is a metal salt of an organic acid.
- 6. The thermoplastic resin composition according to claim 5, wherein the metal salt of an organic acid is a metal salt of a carboxylic acid or an organophosphorus compound.
- 7. The thermoplastic resin composition according to claim 1, wherein a number of bubbles generated when the composition is heated at 260° C. for 20 minutes is 20 pieces/g or smaller.
- 8. The thermoplastic resin composition according to claim 1, wherein the methacrylic resin has a lactone ring-containing structure.
- 9. The thermoplastic resin composition according to claim 1, wherein the methacrylic resin has a lactone ring structure shown by following formula (1):
- 10. A process for producing a thermoplastic resin composition according to claim 1, the process comprising carrying out, when preparing a methacrylic resin having a ring structure in a main chain thereof and a glass transition temperature of 110° C. or higher, cyclization condensation reaction using a catalyst to form the ring structure; and then adding a deactivator of the catalyst.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2006-055463 (PAT) |
Mar 2006 |
JP |
national |