US Patent No: 6,316,570
Number of patents in Portfolio can not be more than 2000
Polymerizable composition of aliphatic polyol (allyl carbonate)
Stats
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Nov 13, 2001
Issued date -
Jun 23, 1999
filing date -
09/339,393
serial no -
Expired
status
Importance
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Abstract
Polymerizable compositions comprising a major amount of a first allyl functional monomer, which is an aliphatic polyol (allyl carbonate) monomer, e.g., diethylene glycol bis(allyl carbonate), and a minor amount of a second allyl functional monomer, which is an aromatic polyol (allyl carbonate) monomer, e.g., 4,4'-isopropylidenediphenol bis(allyl carbonate), are described. The second allyl functional monomer is present in the polymerizable composition of the present invention in at least an amount to provide a polymerizate of the composition having (i) reduced cracking relative to a polymerizate prepared from a comparative composition that is free of the second allyl functional monomer, and (ii) a refractive index of less than 1.530. Polymerizable compositions according to the present invention may optionally comprise static dyes and/or photochromic substances.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,637,698 Photochromic compound and articles containing the same | 128 | 1984 | |
| 4,816,584 Photochromic spiro(indoline)benzoxazines | 106 | 1987 | |
| 4,880,667 Photochromic plastic article and method for preparing same | 103 | 1987 | |
| 5,066,818 Photochromic naphthopyran compounds | 132 | 1990 | |
| 5,110,881 Polymerizable organic resin composition | 16 | 1991 | |
| 5,236,978 Resin composition of polyol (allyl carbonate) and allyl terminated aliphatic urethane | 20 | 1991 | |
| 5,221,721 Polymerizable composition | 9 | 1992 | |
| 5,246,630 Polymerizable composition | 7 | 1993 | |
| 5,708,064 High refractive index photochromic ophthalmic article | 18 | 1994 | |
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| 4,643,537 Optical filter | 27 | 1984 | |
| 4,650,605 Optical filter | 6 | 1984 | |
| 4,613,656 Method for polymerizing bis(allyl carbonate) resin | 89 | 1984 | |
| 4,622,376 Composition of aromatic poly(allylcarbonate), styrene materials, and crosslinker containing three or more ethylenically unsaturated groups for producing polymer of high refractive index and low yellowness | 97 | 1985 | |
| 4,666,976 Internally colored polyol (allyl carbonate) polymerizates | 26 | 1986 | |
| 4,740,070 Optical filter | 11 | 1986 | |
| 4,931,220 Organic photochromic pigment particulates | 122 | 1987 | |
| 5,017,666 Polyol(allyl carbonate) compositions and polymerizates prepared therefrom | 8 | 1988 | |
| 4,931,219 Photochromic compound and articles containing the same | 68 | 1989 | |
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| 5,274,132 Photochromic naphthopyran compounds | 155 | 1992 | |
| 5,405,958 Photochromic spiro(indoline)naphthoxazine compounds | 141 | 1992 | |
| 5,384,077 Photochromic naphthopyran compounds | 132 | 1993 | |
| 5,466,398 Photochromic substituted naphthopyran compounds | 125 | 1993 | |
| 5,429,774 Benzopyran compounds | 127 | 1994 | |
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| 4,215,010 Photochromic compounds | 129 | 1978 | |
| 4,342,668 Photochromic compounds | 129 | 1980 | |
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| 4,826,977 Photochromic spiropyran compounds | 112 | 1987 | |
| 4,818,096 Photoreactive lenses with adamantane spiro compounds | 110 | 1987 | |
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| 5,084,526 Miscible blends of an amide and/or imide containing polymer and a polyarylate | 7 | 1989 | |
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| 4,367,170 Stabilized photochromic materials | 88 | 1975 | |
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| 5,599,876 Composition and procedure for the preparation of organic glasses | 1 | 1993 | |
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 | May 13, 2013 |
| 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 |