US Patent No: 6,762,218
Number of patents in Portfolio can not be more than 2000
Impact resistant thermoplastic molding materials comprised of syndiotactic polystyrene, glass fibers and thermoplastic elastomer (tpe) impact modifiers
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Jul 13, 2004
Issued date -
Oct 3, 2002
filing date -
10/240,681
serial no -
Expired
status
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Abstract
Thermoplastic molding compositions comprising, as substantive constituents, A) from 5 to 96% by weight of a vinylaromatic polymer with a syndiotactic structure, B) from 2 to 50% by weight of an inorganic filler, C) from 1 to 15% by weight of a thermoplastic elastomer based on copolymers made from vinylaromatic monomers, dienes and, where appropriate, 1,1-diphenylethylene, D) from 1 to 10% by weight of a compatibilizer, and, where appropriate, E) from 1 to 15% by weight of an elastomeric particulate styrene-diene block copolymer whose diene content may have been completely or to some extent hydrogenated, and, where appropriate, F) additives, where the total of the percentages by weight of A) to F) is 100.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,418,275 Polystyrene composition | 37 | 1993 | |
| 5,444,126 Process for producing a modified polyphenylene ether | 30 | 1994 | |
| 5,543,462 Impact resistant polystyrene composition | 35 | 1994 | |
| 5,952,431 Process for producing acid-modified polyphenylene ether and polystyrenic resin composition | 4 | 1997 | |
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| 6,162,866 Thermoplastic molding compositions based on star polymers with thermoplastic elastomers and polyarylene ethers | 4 | 1999 | |
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| 6,005,050 Impact resistant polystyrene composition | 32 | 1997 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 13, 2016 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |