Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8147725 | Photochromic materials having extended pi-conjugated systems and compositions and articles including the same The present invention provides a photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-subst... | 04/03/2012 |
| 8114935 | Microporous precipitated silica Described herein is microporous precipitated silica having the following physico-chemical parameters: a CTAB surface area of 50 to 300 square meters/gram, a BET/CTAB ratio of ≧1.3, and a relative breadth γ of pore size distribution of ≦3.5. The precipitated sil... | 02/14/2012 |
| 8077373 | Clear to circular polarizing photochromic devices The present invention provides composite optical elements including a photochromic linear polarizing element and a birefringent layer such that composite optical element circularly or elliptically polarizes transmitted radiation. The photochromic linear polarizing e... | 12/13/2011 |
| 8003005 | Alignment facilities for optical dyes Various non-limiting embodiments disclosed herein provide phase-separating polymer systems including a cured polymeric liquid crystal matrix phase and a guest phase including at least one photoactive material where the guest phase separates from the matrix phase dur... | 08/23/2011 |
| 7978391 | Polarizing, photochromic devices and methods of making the same A liquid crystal cell including a first substrate having a first surface; a second substrate having a second surface, wherein the second surface of the second substrate is opposite and spaced apart from the first surface of the first substrate so as to define a regi... | 07/12/2011 |
| 7911676 | Photochromic optical articles prepared with reversible thermochromic materials Provided is a photochromic optical articleincluding: (a) an optical substrate; (b) a thermally reversible photochromic material; and (c) reversible thermochromic material capable of at least partially filtering UV/visible light at or below room temperature and becom... | 03/22/2011 |
| 7910020 | Liquid crystal compositions comprising mesogen containing compounds Liquid crystal compositions comprising compounds including at least one mesogenic substructure and at least one long flexible segment and a compound selected from a photochromic compound, a dichroic compound and a photochromic-dichroic compound and methods of synthe... | 03/22/2011 |
| 7910019 | Mesogen containing compounds Compounds including at least one mesogenic substructure and at least one long flexible segment and methods of synthesizing the same are disclosed. Formulations which include various embodiments of the mesogen containing compounds and their use in articles of manufac... | 03/22/2011 |
| 7907346 | Photochromic materials and photochromic compositions and articles including the same Photochromic materials and photochromic compositions and articles including the photochromic materials are disclosed. The photochromic materials may be the reaction product of a hyperbranched polyester polyol having, on average, at least two reactive hydroxyl groups... | 03/15/2011 |
| 7847998 | Polarizing, photochromic devices and methods of making the same Provided is an optical element including: a substrate; at least one at least partially ordered orientation facility connected to at least a portion of the substrate; and an at least partial coating connected to at least a portion o... | 12/07/2010 |
| 7757629 | Method and apparatus for coating an optical article Methods and apparatus for coating optical articles, such as optical lenses, are provided. In one aspect, an optical article is placed in a holder and a sheet of coating material is discharged from a nozzle, such as from a fan coater nozzle, onto the optical article ... | 07/20/2010 |
| 7704552 | Process for producing chemically treated amorphous precipitated silica Described is an improved process for producing chemically treated fillers by using a certain combination of functionalizing and hydrophobizing agents in an aqueous suspension of inorganic oxide having a pH of 2.5 or less and increasing the pH of the suspension after... | 04/27/2010 |
| 7687107 | Process for producing chemically modified amorphous precipitated silica Described is an improved process for producing chemically modified fillers by using a certain combination of functionalizing and hydrophobizing agents in an aqueous suspension of inorganic oxide having a pH of 2.5 or less and increasing the pH of the suspension afte... | 03/30/2010 |
| 7632540 | Alignment facilities for optical dyes Various non-limiting embodiments disclosed herein provide methods of making alignment facilities for optical dyes connected to an optical substrate. For example, one non-limiting embodiment provides a method of making an alignment facility for an optical dye connect... | 12/15/2009 |
| 7584630 | Photochromic ocular devices Described are photochromic ocular devices such as contact lenses and intraocular lenses made of an organic polymeric material and at least one photochromic material capable upon exposure to actinic radiation to change from a less ultraviolet radiation absorbing unac... | 09/08/2009 |
| 7582749 | Photochromic compounds Various non-limiting embodiments disclosed herein relate generally to photochromic compounds, which may be thermally reversible or non-thermally reversible, and articles made therefrom. Other non-limiting embodiments relate to photochromic-dichroic compounds, which ... | 09/01/2009 |
| 7579022 | Photochromic compounds Various non-limiting embodiments disclosed herein relate generally to photochromic compounds, which may be thermally reversible or non-thermally reversible, and articles made therefrom. Other non-limiting embodiments relate to photochromic-dichroic compounds, which ... | 08/25/2009 |
| 7569107 | Treated filler and process for producing The present invention is related to treated filler and processes for producing said treated filler. Untreated filler slurry can be treated with a treating material and, optionally, a coupling material and then subjected to conventional drying method(s), to produce t... | 08/04/2009 |
| 7557208 | Naphthols useful for preparing indeno-fused photochromic naphthopyrans Described are naphthols useful in the manufacture of novel indeno-fused photochromic naphthopyran materials. ... | 07/07/2009 |
| 7556751 | Photochromic materials having electron-withdrawing substituents Photochromic materials comprising indeno-fused naphthopyrans having a first electron-withdrawing substituent and, in certain non-limiting embodiments, a second electron-withdrawing substituent are disclosed. The photochromic materials according to the various embodi... | 07/07/2009 |
| 7556750 | Photochromic materials with reactive substituents Various non-limiting embodiments of the present disclosure relate to photochromic materials comprising a reactive substituent. For example, the present disclosure contemplates photochromic materials, such as photochromic naphthopyrans and indeno-fused naphthopyrans ... | 07/07/2009 |
| 7527754 | Photochromic indeno-fused naphthopyrans Photochromic materials comprising indeno-fused naphthopyrans having substituents comprising a 4-fluorophenyl group and a 4-aminophenyl group bonded to the 3-position of the indeno-fused naphthopyran are disclosed. The photochromic materials may exhibit faster fade r... | 05/05/2009 |
| 7517982 | Naphthols useful for preparing indeno-fused photochromic naphthopyrans Described are naphthols useful in the manufacture of novel indeno-fused photochromic naphthopyran materials. ... | 04/14/2009 |
| 7505189 | Polarizing, photochromic devices and methods of making the same Provided is an optical element including: a substrate; and at least one at least partially aligned thermally reversible photochromic-dichroic compound connected to at least a portion of the substrate and having an average absorptio... | 03/17/2009 |
| 7481955 | Photochromic materials comprising metallocenyl groups Various non-limiting embodiments of the present invention relate to photochromic materials having a metallocenyl group. More particularly, various non-limiting embodiments disclosed herein provide photochromic materials including an indeno-fused naphthopyran, such a... | 01/27/2009 |
| 7471436 | Polarizing, photochromic devices and methods of making the same A security element connected to at least a portion of a substrate, the security element including an at least partial coating having a first state and a second state connected to at least a portion of the substrate, the at least partial coating being adapted to swit... | 12/30/2008 |
| 7465415 | Photochromic materials derived from ring-opening monomers and photochromic initiators Various non-limiting embodiments disclosed herein related to photochromic materials comprising the reaction product of (a) at least one ring-opening cyclic monomer, and (b) a photochromic initiator. Other non-limiting embodiments related to photochromic materials re... | 12/16/2008 |
| 7465414 | Photochromic article Describes an optical article, e.g., an ophthalmic photochromic article, such as a lens, in which the article includes: (1) a transparent substrate, such as a thermoset or thermoplastic plastic substrate, (2) a multiply laminate adjacent to at least one surface of th... | 12/16/2008 |
| 7466469 | Polarizing, photochromic devices and methods of making the same A method of making an optical element including forming an at least partial coating of at least one at least partially aligned thermally reversible photochromic-dichroic compound on at least a portion of a substrate. ... | 12/16/2008 |
| 7457025 | Polarizing, photochromic devices and methods of making the same A method of making a composite element including: forming a sheet of an at least partially ordered liquid crystal polymer having at least a first general direction, a liquid crystal material having at least a second general direction distributed within at least a po... | 11/25/2008 |
| 7429105 | Polarizing, photochromic devices and methods of making the same A method of making an optical element including overmolding an at least partial coating of an at least partially ordered liquid crystal material and at least one at least partially aligned photochromic-dichroic compound on at least a portion of an optical substrate.... | 09/30/2008 |
| 7410691 | Photochromic optical article Describes a photochromic article, e.g., a plastic ophthalmic photochromic article, such as a lens, in which the article includes (1) a rigid substrate, such as a thermoset or thermoplastic polymeric substrate, (2) a photochromic polymeric coating appended to at leas... | 08/12/2008 |
| 7394585 | Polarizing, photochromic devices and methods of making the same A method of making an optical element including: forming an at least partial coating of an alignment medium to at least a portion of at least one surface of a substrate and at least partially ordering at least a portion of the alig... | 07/01/2008 |
| 7368072 | Photochromic contact lenses and methods of manufacturing Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a ca... | 05/06/2008 |
| 7359104 | Polarizing, photochromic devices and methods of making the same A method of making an optical element including: (a) forming an at least partial coating on at least a portion of a substrate; and (b) adapting at least a portion of the at least partial coating to switch from a fi... | 04/15/2008 |
| 7342112 | Photochromic compounds Various non-limiting embodiments disclosed herein relate generally to photochromic compounds, which may be thermally reversible or non-thermally reversible, and articles made therefrom. Other non-limiting embodiments relate to photochromic-dichroic compounds, which ... | 03/11/2008 |
| 7320826 | Photochromic articles with reduced temperature dependency and methods for preparation Described are photochromic articles that include a substrate, a temperature dependent reducing amount of at least one organic photochromic material (b) that changes from more absorbing to less absorbing of radiation in its activating spectral absorbance as the tempe... | 01/22/2008 |
| 7291063 | Polyurethane urea polishing pad The present invention relates to an article for altering a surface of a workpiece, or a polishing pad having a window. In particular, the polishing pad includes a polyurethane urea material wherein the polyurethane urea material contains cells which are at least par... | 11/06/2007 |
| 7261843 | Photochromic optical article Describes a photochromic article, e.g., an ophthalmic photochromic plastic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., a transparent substrate such as a glass or organic polymeric substrate, as for example, a thermoset or ther... | 08/28/2007 |
| 7262295 | Indeno-fused photochromic naphthopyrans, naphthols and photochromic articles Described are photochromic materials of indeno [2′,3′:3,4]naphtho[1,2-b]pyran structure, characterized in that they have a nitrogen or sulfur containing substituent at the 11-position ring atom, are substantially free of spiro-substituents at the 13-position and... | 08/28/2007 |
