Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7122248 | Security articles This invention provides security articles comprising fibers, threads and fiber sections (“dots”) possessing multiple verification characteristics. The fibers possess unique and difficulty duplicated combinations of complex cross-sections, components, and multipl... | 10/17/2006 |
| 7108913 | Light reflecting polymeric articles containing benzoxazolyl-napthalene optical brighteners The present invention provides a highly reflective fluorescent polymer composition comprising a benzoxzolyl naphthalene optical brightener and a polymeric substrate support material formed into three dimensional articles or fibers. The enhanced light reflectivity of... | 09/19/2006 |
| 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 |
| 6821649 | Organic EL device and preparation method In an organic EL device comprising a cathode, an anode, and two or more stacked organic layers therebetween including a light emitting layer, an electron injecting organic layer containing an organic salt or complex of a metal having a standard electrode potential o... | 11/23/2004 |
| 6682662 | Fluorescent lamp cover and lighting fixture A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): ... | 01/27/2004 |
| 6461747 | Heterocyclic compounds, materials for light emitting devices and light emitting devices using the same Disclosed is a material for a light emitting device excellent in color purity, good in light emitting characteristics and excellent in stability, which consists of a compound represented by the following general formula (I): L.paren open-st.A)m... | 10/08/2002 |
| 6274065 | Process for the preparation of fluorescent compositions, fluorescent compositions and their use Preparation of a solid fluorescent composition comprising (1) mixing a host chromophore and an effective amount of a pigment precursor in a solvent, then generating a pigment as guest chromophore in-situ from the pigment precursor, and, subsequently, isolating... | 08/14/2001 |
| 6120704 | Mixtures of optical brighteners The invention relates to mixtures of optical brighteners comprising nonionic polyester brighteners and anionic or nonionic polyamide brighteners, which develop a synergistic effect. The brighteners of the invention are suitable for polyamide and polyureth... | 09/19/2000 |
| 6117189 | Protective method The present invention relates to a method for the improvement of the sun protection factor (SPF) of textile fiber material, comprising applying to the textile fiber material a detergent comprising at least one fluorescent whitening agent, which absorbs ra... | 09/12/2000 |
| 5695687 | Anhydrous fluorescent whitening agent formulation The present invention provides an anhydrous fluorescent whitening agent formulation comprising: a) 5 to 60, preferably 15 to 45% by weight of a fluorescent whitening agent or a mixture thereof; b) 0 to 10, preferably 0 to 2% by weight of a stabiliser or a mixt... | 12/09/1997 |
| 5522921 | Invisible, x-ray opaque fluorescent printing medium for multiplex reading Materials for printing information that are invisible under normal white or visible light but are x-ray opaque and ultraviolet fluorescent or absorbent are used for multiplex reading. The invention permits a reader to use x-ray radiation, ultraviolet ligh... | 06/04/1996 |
| 5298189 | Proton transfer bis-benzazole fluors and their use in scintillator detectors A novel class of proton transfer, bis-benzazole, fluorescent compounds, i.e., fluors, is disclosed. The novel fluors include substituted or unsubstituted 1,4-bis(2-benzazolyl)-2-hydroxybenzenes and 1,4-bis(2-benzazolyl)-2-amidobenzenes wherein the benzazo... | 03/29/1994 |
| 5149138 | Method of applying a fluorescent marking composition A composition for rendering materials fluorescent substantially without visible trace comprises an organic fluorescent compound dissolved in a solvent characterized by a boiling point or distillation range at atmospheric pressure of between about 12°-35... | 09/22/1992 |
| 5035825 | Stable bleaching detergents containing stilbene fluorescent whitening agents Detergents which, in addition to inorganic and/or organic peracids, contain specific stilbene compounds as fluorescent whitening agents. These detergents are stable for several months and already show the customary cleaning properties at washing temperatu... | 07/30/1991 |
| 4889655 | Mixtures of fluorescent whitening agents Mixtures of fuorescent whitening agents comprising 5 to 45 parts by weight of 4,4'-bis(cyanovinyl)stilbene and 95 to 55 parts by weight of a compound of formula ##STR1## and the use of said mixtures and compositions containing them for whitening... | 12/26/1989 |
| 4871480 | Audoradiography enhancer and method of use Disclosed is an improved autoradiography enhancer composition and method of use. The enhancer composition uses an acid anhydride as a dehydration agent.... | 10/03/1989 |
| 4830763 | Process for increasing the degree of whiteness of polyester-containing textile material A process for increasing the degree of whitness of polyester-containing textile material by the combined application of a fluorescent whitening agent and, as booster, a compound which fluoresces in the absorption range of said fluorescent whitening agent,... | 05/16/1989 |
| 4751020 | UV-fluorescent cyanoacrylate adhesive The invention relates to an -cyanoacylate adhesive which is fluorescent in ultraviolet light. The adhesive contains a fluorescent compound selected from: (a) Bis-benzoxazolyls having the following formula: ##STR1## in which X is a thiophene r... | 06/14/1988 |
| 4745142 | Stainproof polyester fiber A polyester fiber having a superior stainproof property comprises at least one fiber-forming polyester copolymer comprising a backbone polyester polymer and at least one type of terminal substituent which blocks at least some of the terminals of the molec... | 05/17/1988 |
| 4539507 | Organic electroluminescent devices having improved power conversion efficiencies Electroluminescent devices are disclosed comprising a hole-injecting zone and an adjacent organic luminescent zone, the device having a power conversion efficiency of at least 9×10-5 w/w and said zones having a combined thickness no greater th... | 09/03/1985 |
| 4526976 | Thieno[3,2-b]benzofuran and benzothiophene derivatives useful as optical brightening agents Compounds of formula I ##STR1## in which X is O or S; Y is O, S or NR3 where R3 is hydrogen or C1-4 alkyl (preferably methyl or ethyl) and rings A and B may be further substituted by non-chromophoric substituents.... | 07/02/1985 |
| 4497804 | Insecticidal, acaricidal, and nematicidal O-ethyl S-alkyl S-(1,2,4-oxadiazol-5-yl-methyl) phosphorodithiolate derivatives, compositions, and methods of use An organophosphate of the formula ##STR1## wherein R1 is an alkyl group containing 3 to 4 carbon atoms or an alkoxyethyl group having an alkoxy moiety containing 1 to 4 carbon atoms, R2 is a hydrogen atom or a methyl group, and R | 02/05/1985 |
| 4466900 | Process for the preparation of fluorescent brightener formulations which are stable on storage A process is described for the preparation of concentrated liquid formulations, stable on storage, of anionic fluorescent brighteners, which process consists in passing a crude (for example obtained from synthesis) aqueous solution or dispersion of a fluo... | 08/21/1984 |
| 4462925 | Stable solutions of optical brighteners A stable aqueous solution comprising (a) 5-25% by weight of an optical brightening agent of formula I ##STR1## in which R1 to R9, X and A.crclbar. are defined in the specification (b) 5-70% by weight of an organic monobas... | 07/31/1984 |
| 4460374 | Stable composition for treating textile substrates The invention relates to a stable composition for treating textile substrates which contains at least (a) an organic solvent which is sparingly soluble to insoluble in water and in which component (b) is dissolved and component (c) is dissolved or dispers... | 07/17/1984 |
| 4447350 | Mixtures of optical brighteners and their use Mixtures of optical brighteners consisting of 1 to 60% by weight of a brightener from the bisbenzoxazolylnaphthalene series and 99 to 40% by weight of one or more brighteners of the formulae 2 to 10 listed in the description.... | 05/08/1984 |
| 4433975 | Cationic fluorescent whitening agents Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R1, R2 and R3 is alky... | 02/28/1984 |
| 4432886 | Cationic fluorescent whitening agents Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R1, R2 and R3 is alky... | 02/21/1984 |
| 4429133 | 2'-Benzothiazolyl-and 2'-benzoxazolyl-2-benzimidazoles Disclosed are compounds of Formula I, ##STR1## where either R1, R2, R3 and R4, independently, are hydrogen, C1-4 alkyl, C1-4 alkoxy, halogen, cyano, carboxy, alkoxy(C1-4)car... | 01/31/1984 |
| 4416795 | Mixtures of optical brighteners Mixtures of optical brighteners composed of (a) 1 to 99% by weight of one or more compounds of the formula (1) ##STR1## wherein R1, R2, R3, R4, R5 and R6 can be identical or different and d... | 11/22/1983 |
| 4384121 | Cationic fluorescent whitening agents Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R1, R2 and R3 is alky... | 05/17/1983 |
| 4336155 | Mixtures of optical brighteners Mixtures of optical brighteners consisting of 5 to 95% by weight of a compound of the formula ##STR1## in which A denotes a o- or p-cyanophenyl group, and 95 to 5% by weight of one or more further optical brighteners.... | 06/22/1982 |
| 4330427 | Mixtures of optical brighteners Mixtures of optical brighteners consisting of 5 to 95 parts by weight of a mixture consisting of 0 to 80% by weight of the compound of the formula 1 ##STR1## 20 to 100% by weight of the compound of the formula 2 ##STR2## and 0 to 80% by weight o... | 05/18/1982 |
| 4304569 | Formulation for brightening synthetic fibers and its preparation and use The formulation for brightening synthetic fibers or mixtures of synthetic fibers and natural fibers, which is an aqueous dispersion comprising at least one finely divided optical brightener and a dispersing agent, wherein the improvement comprises the dis... | 12/08/1981 |
| 4263441 | Novel fluorine-containing benz-azole derivatives, process for their manufacture and their use as optical brighteners Compounds of the general formula ##STR1## in which X represents a trifluoromethyl group or a fluorine atom, n is 1 or 2, Z is an oxygen atom or a NR grouping, in which R is hydrogen or an optionally substituted alkyl group, the benzo rings optionally... | 04/21/1981 |
| 4245007 | 1,4-Bis-[azol-2'-yl]-naphthalenes and process of using the same New 1,4-bis-[azol-2'-yl]-naphthalene compounds, a process for their preparation as well as a process for optically brightening organic materials on using said compounds are disclosed.... | 01/13/1981 |
| 4211813 | Photoluminescent textile materials Sheet materials are provided which are photoluminescent by virtue of their coating. These sheet materials comprise a textile or other flexible sheet material substrate to which adheres a coating layer consisting of one or more synthetic resins admixed wit... | 07/08/1980 |
| 4208328 | Alkyl 3,5-dihydroxy-4-(2-benzothiazolyl)benzoates A series of solid organic luminescent materials is disclosed comprising the condensation product of a substituted aromatic primary amine with an alkyl ester of a hydroxy aromatic acid having an alkyl group containing up to about 6 carbon atoms. The presen... | 06/17/1980 |
| 4129412 | Brightener mixtures and their use Mixtures of optical brighteners containing 0.05 to 1% of a 4-benzoxazolystilbene derivative and 1 to 0.05% of a 1,4-bis-benzoxazolyl- or bis-benzthiazolyl-naphthalene derivative. These mixtures show a higher degree of whiteness than an equal amount of onl... | 12/12/1978 |
| 4122257 | Benzofuran-oxadiazole compounds Furanyl-(2)-1,2,4-oxadiazoles of the formula ##STR1## wherein A represents an aromatic mononuclear or binuclear ring system which with two adjacent carbon atoms is fused with the furan nucleus in the manner indicated, R represents hydrogen, a lower a... | 10/24/1978 |
