Process for producing a modified polyphenylene ether
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United States of America Patent
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Aug 22, 1995
Issued Date -
N/A
app pub date -
Feb 24, 1994
filing date -
Dec 10, 1991
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Abstract
There are disclosed a thermoplastic resin composition comprising (A) a styrenic polymer having a high degree of syndiotactic configuration, (B) an inorganic filler and (C) a polyphenylene ether that is modified with a compound having an ethylenic double bond and a polar group in the same molecule, especially maleic anhydride, the ether having a modification rate of 1.3% or more by weight; a thermoplastic resin composition further comprising (D) a rubbery elastomer in addition to the above components (A), (B) and (C); a process for producing modified polyphenylene ether (PPO) comprising reacting 100 parts by weight of PPO with 1 to 20 parts by weight of the above compound or a derivative thereof in an aromatic hydrocarbon solvent in the presence of 15 or less parts by weight of a radical generator; and a process for producing the modified PPO comprising reacting 100 parts by weight of PPO with 1 to 5 parts by weight of the above compound or a derivative thereof at 300.degree. to 350.degree. C. in the presence of 0.1 to 3 parts by weight of a radical generator which exhibits a half-life period of 1 minute at 300.degree. C. or higher. The above thermoplastic resin composition is markedly improved in its dynamical properties especially rigidity and heat resistance.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
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Patent Owner(s)
- IDEMITSU KOSAN CO., LTD.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Masuyama, Akitoshi | Ichihara, JP | 9 | 131 |
Okada, Akihiko | Ichihara, JP | 40 | 601 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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