Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7951312 | Borosilicate glass with UV-blocking properties for pharmaceutical packaging The borosilicate glass for pharmaceutical packaging has a transmission τ in the visible range of more than 80% at a wavelength of 400 nm, a transmission τ in the UV range of at most 0.1% at wavelengths under 260 nm (each at a sample thickness of 1 mm), a transform... | 05/31/2011 |
| 7582231 | Essentially water-free polymerized crystalline colloidal array composites having tunable radiation diffracting properties The present invention is directed to a composite having tunable radiation diffracting properties which includes a flexible, water-free polymeric matrix and a crystalline colloidal array of particles having a lattice spacing, the array being embedded in the polymeric... | 09/01/2009 |
| 7405873 | UV-bandpass filter and application to UV-detecting apparatus or light-emitting apparatus A UV-bandpass filter for transmitting therethrough light having a wavelength included in a UV-region. The bandpass filter is an optical filter including a thin silver film; wherein the thin silver film includes an entrance face and an exit face opposing the entrance... | 07/29/2008 |
| 7401817 | Invisible, machine-detectable security marking, production of the security marking, and security system comprising this security marking The invention relates to a security marking whose level of proof against forgery is greater than that of known security markings, comprising liquid-crystalline material with chiral phase, wherein the security marking is imperceptible to the eye and the properties of... | 07/22/2008 |
| 7399434 | Rare metal compounds and mixtures of these An article of manufacture marked with compositions comprising rare earth metal compounds which, due to their luminescence when irradiated with UV light, are suitable in particular for the marking of security-relevant items, such as documents or data carriers. ... | 07/15/2008 |
| 7374822 | Near-infrared ray-shielding paint, near-infrared ray-shielding laminate obtained therefrom and production method thereof A near-infrared ray shielding paint capable of forming a coating that exhibits high light transmission coefficient in visible light region while having high shielding capability in near-infrared region and exhibits little chromaticity change even in harsh environmen... | 05/20/2008 |
| 7288283 | UV-absorbing coatings and methods of making the same Methods of forming UV-absorbent transparent coatings and transparent substrates coated with the same allow for a relatively lower temperature cross-linkage reaction between a UV-absorbent compound and an epoxy-alkoxysilane. More specifically, UV-absorbent coatings o... | 10/30/2007 |
| 7264671 | Sulfur-modified zinc oxide The present invention relates to particles or powders of a compound of formula Zn1−yMyO1−xSx, wherein x has a value in the range from 0.01 to 0.08, M represents a divalent metal and y has a value in the range from 0 to... | 09/04/2007 |
| 7261845 | Plastic lens and process for preparing the lens A plastic lens which absorbs ultraviolet light having wavelength of about 400 nm and suppresses coloring and a process for producing the lens. A plastic lens may be made from a composition which comprises (A) a lens material monomer comprising diethylene glycol bisa... | 08/28/2007 |
| 7262294 | Photochromatic pyrano-1,3-oxazinonaphthalene derivatives Photochromatic compounds belonging to the groups of chromenes and spiro-pyrans having general formula (I) ... | 08/28/2007 |
| 7244420 | Cosmetic composition based on organic silicon compounds comprising at least a function with a cosmetic effect The invention concerns a composition comprising, in a cosmetically acceptable medium, at least 0.02 weight percent relative to the composition total weight, one or several water soluble organosilicon compounds, selected among silanes having one silicon atom and silo... | 07/17/2007 |
| 7241404 | Resin composition, optical filter and plasma display A resin composition which can enhance the heat resistance and the humidity resistance of a dye possessing the maximum absorption at wavelengths in the range of 380–780 nm is provided. It is obtained by polymerizing a monomer mixture containing 5–100 wt. % of a m... | 07/10/2007 |
| 7214145 | Photochromic golf ball Disclosed is a photochromic golf ball with a one- or multi-piece structure, which comprises a photochromic compound. The photochromic golf ball reversibly changes between two different color states according to exposure to U.V. radiation associated with direct sunli... | 05/08/2007 |
| 7163649 | Minimizing spatial-dispersion-induced birefringence A composition formed from Group II fluorides in which the composition has little or no intrinsic birefringence at a selected wavelength. The composition is a mixed solid solution of CaF2 with a second crystal of SrF2 or BaF2. The res... | 01/16/2007 |
| 7108918 | Optical filter having filter layer containing infrared absorbing dye and ultraviolet absorbing agent An optical filter comprises a transparent support and a filter layer. The filter layer contains a dye and a binder polymer. The dye is in an aggregated form exhibiting an absorption maximum in the wavelength region of 750 to 1,100 nm. The support, the filter layer o... | 09/19/2006 |
| 7094918 | Low-color ultraviolet absorbers for thermoplastic and thermoset high UV wavelength protection applications Novel ultraviolet absorbing compounds that are liquid in nature, are low in color (and thus permit use without the concomitant necessity of adding large amounts of other coloring agents to combat such discoloring), and are highly effective in providing protection in... | 08/22/2006 |
| 7041392 | Photochromic, photochromic material and method for manufacturing the same A photochromic film includes a laminated film including a composite oxide film composed of at least two elements, one of the two elements selected from the group consisting of Ti, Mn, Co, Ni, Zn, and Sn, and the other of the two elements selected from the group cons... | 05/09/2006 |
| 7029758 | Melanin polyvinyl alcohol plastic laminates for optical applications The present invention relates to the use of water soluble melanin in solid plastic films of polyvinyl alcohol to be used in conjunction with other plastics to make laminated sheets or lenses. Such laminates will be used as filters to protect against photochemical da... | 04/18/2006 |
| 7018570 | Ultraviolet absorber composition and resin composition stabilized therewith The present invention is directed to an ultraviolet absorber composition which is formed by melt-mixing a compound (A) represented by formula (I): and a resin stabilizer (B) selected from the group consisting of a pheno... | 03/28/2006 |
| 7011772 | UV absorbing mixture with textile fiber affinity The invention relates to a mixture, comprising (A) 10 to 90 wt. % of at least one C6 to C18 alkyl ester, or C5 to C8 cycloalkyl ester of 2-cyano-3,3-diphenylacrylic acid and (B) 90 to 10 wt. % of at least one further compo... | 03/14/2006 |
| 7005176 | Optical adhesive polyester film An optical adhesive polyester film comprising (A) a polyester film layer containing an aromatic polyester and an ultraviolet absorber and (B) a coating formed on at least one surface of the polyester film (A). The coating (B) contains at least one polymer selected f... | 02/28/2006 |
| 6994890 | Cleaning and multifunctional coating composition containing an organosilane quaternary compound and hydrogen peroxide Cleaning and multifunctional coating compositions containing hydrogen peroxide and an organosilane quaternary compound in aqueous formulations are used to improve water and soil repellency and residual antimicrobial activity. Various surfaces may be treated includin... | 02/07/2006 |
| 6933325 | High index curable photochromic composition and its process A high refractive index, curable, synthetic resin composition comprising a core resin composition composed of a mixture of ethylenically unsaturated compounds, and an initiation system containing both photo and thermal initiators, particularly a photochromic resin c... | 08/23/2005 |
| 6924326 | Method and formulation using passive electrostaticity for improving filter performance A method treats ordinary filters with an electrostatic material that will turn any filter into a passive electrostatic filter. A formulation is sprayed or otherwise applied onto the filter to increase the filter's ability to effectively reduce indoor air particulate... | 08/02/2005 |
| 6887400 | Water-soluble polyaminoamides comprising 1,3-diimines as sunscreen agents A UV-protective composition comprising a water-soluble polyaminoamide containing 1,3-diimine groups, wherein the polyaminoamide containing 1,3-diimine groups absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, and methods of trea... | 05/03/2005 |
| 6866795 | Ultraviolet-absorbing film containing a fluorescent brightening agent An ultraviolet-absorbing film comprising a fluorescent brightening agent and having a transmission of the rays of 410 nm or less of 90% or less, wherein the fluorescent brightening agent is represented by the following formula (I): | 03/15/2005 |
| 6858289 | Optical filters comprising solar blind dyes and UV-transparent substrates The invention provides an optical filter comprising: a. an organic, solar blind filter dye; and b. a UV-transparent, non-scattering and chemically stable substrate. The substrate may be a UV-transparent n... | 02/22/2005 |
| 6783705 | Calibration medium for wavelength calibration of U.V. absorbance detectors and methods for calibration The invention features an optical medium for calibrating UV absorbance detectors, methods for making such an optical medium, and methods for calibrating UV absorbance detectors using such a medium. The optical calibration medium includes a gel-sol silica glass monol... | 08/31/2004 |
| 6716373 | Optically active polysilane, optically active film, and method of controlling optical characteristics of solid thin film There is disclosed an optically active polysilane represented by the following general formula: wherein R1 and R2 are a combination of (R)-3,7-dimethyloctyl group and (S)-3-methylpentyl group, R | 04/06/2004 |
| 6699651 | Base precursors for use in a photothermographic element Improved compounds and base precursors that undergo thermal decomposition are disclosed. Thermal-dye-bleach agents, and in particular, a novel class of salts of arylsulfonylacetic acids as bleaching agents for photothermographic use are disclosed. Phototh... | 03/02/2004 |
| 6620347 | Crystalline filters for ultraviolet light sensors A crystal filter and a method of making a crystal filter capable of transmitting radiation within a particular pass band is disclosed. The crystal filter is particularly appropriate for a UV detection system, where the pass band is between about 200 to ab... | 09/16/2003 |
| 6610214 | UVR attenuation of fabrics and finished textiles Materials for, and methods of protecting yarns, fibers, fabrics and finished textiles from the deleterious effects of ultraviolet radiation. The materials include at least one physical UVR attenuator, having an average particle size below 1000 nanometers,... | 08/26/2003 |
| 6589450 | Light-converting material and composition for producing the same The present invention relates to a material comprising a matrix, apatite and at least one europium composite compound of the general formula Mexm My3 Rzn, wherein mx+3y=nz; Mex | 07/08/2003 |
| 6587262 | UV synthetic silica glass optical member and reduction projection exposure apparatus using the same This invention provides a synthetic silica glass optical member used together with light having a specific wavelength of 250 nm or less, in which the difference between the maximum value and the minimum value of transmittance [%/cm] per cm in thickness fo... | 07/01/2003 |
| 6521753 | Indolinospiropyran compounds and methods for their manufacture The present invention provides indolinospiropyran compounds and methods for their manufacture, which compounds are useful as photochromic compounds. The compounds of the invention are substituted on the indole ring with succinimide, which substitution per... | 02/18/2003 |
| 6508957 | Fluorescent maleimides and uses thereof The present invention relates to methods for using a maleimide of formula (I) ##STR1## with the proviso that R1 and R2 do not simultaneously stand for phenyl or a maleimide of formula Ia ##STR2## as UV fluorescent material for v... | 01/21/2003 |
| 6500363 | Classes of high linear and nonlinear response compounds A class of molecules suitable for linear and nonlinear optical applications which include charged aromatic groups which function as electronic donors and acceptors connected through polyhedral and π-organic and inorganic groups. The polyhedral and π-org... | 12/31/2002 |
| 6500414 | Aromatic dimethicone copolyol polymers as sunscreen agents in personal care applications The present invention relates to a process for protecting hair and skin from the deleterious effects of ultra violet radiation using topical applications of a novel dimethicone copolyol compounds bearing ultra violet absorbing substituents.... | 12/31/2002 |
| 6497830 | Ultraviolet light absorber and its use An ultraviolet light absorber containing, as an active ingredient, a zinc oxide type solid solution which is represented by the formula (1), (Zn)1-x M3+x-δ O (1) wherein M3+ is a trivalent metal such as Al, Fe, Ce or T... | 12/24/2002 |
| 6468609 | UV-absorbing film and its use as protective sheet UV-absorbers of the 4-alkoxy-2-hydroxyphenyl-s-triazine type are incorporated in a cellulose triacetate film. Such an UV-cut off film can be used advantageously, amongst others, as protective sheet for a polarizer in a Liquid Crystal Display.... | 10/22/2002 |
