US Patent No: 7,173,089
Number of patents in Portfolio can not be more than 2000
Near-net-shape polymerization process and materials suitable for use therewith
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Feb 6, 2007
Issued date -
Feb 25, 2002
filing date -
10/083,316
serial no -
In Force
status
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Abstract
This invention is directed to a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles with exact dimensions. The process relies on the use of polymerizable compositions comprised of a mixture of a dead polymer, a reactive plasticizer and, optionally, an initiator, which compositions are semi-solid-like prior to curing and induce low shrinkage upon curing as a result of their partially polymerized nature prior to processing. The partially polymerized nature of the precursor mixtures also allows extremely impact-resistant objects/articles to be fabricated. Other desirable engineering property attributes can similarly be achieved via the judicious blending of starting ingredients in formulating the polymerizable (curable) mixtures.
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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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| 6,570,714 Precision composite article | 10 | 2001 | |
| 6,821,458 Near-net-shape polymerization process and materials suitable for use therewith | 1 | 2001 | |
| 6,746,632 Morphology trapping and materials suitable for use therewith | 3 | 2002 | |
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| 5,110,514 Controlled casting of a shrinkable material | 143 | 1989 | |
| 5,114,632 Controlled casting of a shrinkable material | 26 | 1990 | |
| 5,278,243 High impact resistant macromolecular networks | 17 | 1992 | |
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| 6,416,690 Precision composite lens | 17 | 2000 | |
| 6,874,885 Near-net-shape polymerization process and materials suitable for use therewith | 4 | 2002 | |
| 2004/0266,941 Biomedical molding materials from semi-solid precursors | 5 | 2004 | |
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| 4,510,593 Information disk of grooved, metal-coated crosslinked polymeric layer | 19 | 1982 | |
| 4,785,064 Ultra-violet light curable compositions for abrasion resistant articles | 22 | 1986 | |
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| 2005/0090,612 Polymerization process and materials for biomedical applications | 7 | 2004 | |
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| 4,402,887 Sheet-like articles of polyvinyl chloride | 30 | 1979 | |
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| 5,185,234 Photosensitive flexographic printing plate composition | 21 | 1991 | |
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| 6,140,450 Modified polysiloxanes, rubber compositions and tire tread rubber compositions containing the same, and reactive plasticizer | 12 | 1998 | |
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| 4,524,162 Low shrinking curable molding compositions containing a poly(acrylate) | 20 | 1983 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 6, 2014 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 6, 2018 |
| Fee | Large entity fee | small entity fee | micro entity fee |
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| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |