Nitrogen Atom Is Part Of A Bridged Or Fused Ring System Patents (Class 526/259)
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Patent number: 5814680Abstract: A soft intraocular lens consisting of a copolymer formed from a perfluorooctylethyloxypropylene (meth)acrylate monomer, a 2-phenylethyl (meth)acrylate monomer, an alkyl (meth)acrylate monomer and a crosslinking monomer as essential components restores its original shape to stabilize itself in a proper period of time, e.g., approximately 20.about.60 seconds, without remaining folded or self-adhering in its optical portion when folded to a small size, inserted into the eye while being held in a folded state and then released from a folding force.Type: GrantFiled: February 21, 1996Date of Patent: September 29, 1998Assignee: Hoya CorporationInventors: Suguru Imafuku, Migio Hamano, Hidetoshi Iwamoto
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Patent number: 5807945Abstract: This invention relates to (co)polymers which contain at least one repeat chain unit of the general formula (1) or (2) and optionally repeat units of the general formula (3), ##STR1## in which L.sup.1 and L.sup.2 denote a photoluminescent residue,wherein the proportion of structural units of the formulae (1) and/or (2) is in each case 0.5 to 100 mol. % and of (3) is 0 to 99.5 mol. % and the molar percentages add up to 100,to the use thereof for the production of electroluminescent arrangements and to the electroluminescent arrangements.Type: GrantFiled: September 23, 1996Date of Patent: September 15, 1998Assignee: Bayer AGInventors: Yun Chen, Rolf Wehrmann, Andreas Elschner, Ralf Dujardin
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Patent number: 5736592Abstract: A process for intramolecularly condensing a polyamic acid composition containing an NLO compound to form a polyimide host matrix composition containing as a guest the NLO compound, which process includes the step of uniformly heating the polyamic acid composition, in the absence of a solvent or diluent, to a temperature at which the intramolecular condensation will occur without thermal degradation of the NLO compound, so that the temperature differential within the polyamic acid is below that which will produce localized thermal degradation temperatures, until the intramolecular condensation of the polyamic acid composition to the polyimide host matrix composition is substantially complete. Polyimide host matrix compositions containing guest NLO compounds prepared by the inventive process are also disclosed, wherein the NLO compounds have external field-induced molecular alignments.Type: GrantFiled: February 15, 1995Date of Patent: April 7, 1998Assignee: Enichem S.p.A.Inventors: Mark Thomas DeMeuse, Diana Marie Applegate, Kwan-Yue Alex Jen, John Thomas Kenney
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Patent number: 5729322Abstract: A reactive monomer for preparing ultraviolet absorbing polymers has formula (I) wherein R.sup.1 is a halogen or C.sub.1 -C.sub.6 straight or branched chain alkoxy group; and R.sup.2 is a --(CH.sub.2).sub.3 O--, --(CH.sub.2).sub.2 O--, --CH(CH.sub.3)CH.sub.2 O--, --CH.sub.2 CH(CH.sub.3)O--, --(CH.sub.2).sub.3 OCH.sub.2 --, --(CH.sub.2).sub.2 OCH.sub.2 --, --CH(CH.sub.3)CH.sub.2 OCH.sub.2 --, or --CH.sub.2 CH(CH.sub.3)OCH.sub.2 -- group. The compound can be used to produce ultraviolet absorbing polymers, such as those used for ocular devices including contact and intraocular lenses.Type: GrantFiled: November 27, 1996Date of Patent: March 17, 1998Assignee: Wesley-Jessen CorporationInventors: Theresa A. Collins, John T. Mulvihill
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Patent number: 5693095Abstract: Improved soft, foldable acrylic lens materials which are particularly suited for use as IOLs, but which are also useful as other ophthalmic devices, such as contact lenses, keratoprostheses, and corneal rings or inlays, are disclosed. These materials contain only two principal components: one aryl acrylic hydrophobic monomer and one hydrophilic monomer. The materials of the present invention are copolymers comprising at least about 90% by weight of the two principal monomeric components; provided that the amount of the hydrophilic component is not greater than that of the aryl acrylic hydrophobic component. The remainder of the material comprises up to 10% by weight of one or more additional components, such as cross-linking, UV-light absorbing, and blue-light absorbing components.The aryl acrylic hydrophobic monomers suitable for use in the materials of the present invention have the formula ##STR1## wherein: X is H or CH.sub.3 ;m is 0-6;Y is nothing, O, S, or NR, wherein R is H, CH.sub.3, C.sub.n H.sub.Type: GrantFiled: October 29, 1996Date of Patent: December 2, 1997Assignee: Alcon Laboratories, Inc.Inventors: Charles Freeman, David L. Jinkerson, Mutlu Karakelle, Albert R. LeBoeuf
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Patent number: 5677405Abstract: The invention discloses methods of preparing copolymers from norbornene-type monomers and cationically polymerizable monomers or polymers from catalytically polymerizable monomers by employing Group VIII transition metal ion source in a solvent for said monomers at a temperature in the range from -100.degree. C. to 120.degree. C. Also disclosed are copolymers from norbornene-type monomers and catalytically polymerizable monomers.Type: GrantFiled: May 24, 1995Date of Patent: October 14, 1997Assignee: The B.F. Goodrich CompanyInventors: Brian Leslie Goodall, Lester Howard McIntosh, III, Dennis Allen Barnes
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Patent number: 5674670Abstract: A photographic element comprising a light sensitive portion and an ultraviolet absorbing polymer comprising repeating units of a 2'-hydroxphenyl benzotriazole with a 5- or 6-substituent selected from halogen, cyano, carboxy or a sulfonyl, and a 4'-alkoxy group in which the alkylene portion of the alkoxy is linked, in sequence through a first optional bivalent linking group, then an oxygen, sulfur or amino group, then a second optional bivalent linking group, to the polymer chain, provided that the 3'-position is unsubsituted and the 4'-substituent does not have any --NH--, --OH or --SH substituents.Type: GrantFiled: March 18, 1996Date of Patent: October 7, 1997Assignee: Eastman Kodak CompanyInventors: Lal Chand Vishwakarma, Hwei-Ling Yau, Tienteh Chen
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Patent number: 5674576Abstract: In a liquid crystalline optical device, a light modulating layer composed of a liquid crystal and a high polymer resin is sandwiched between two substrates having electrode layers, at least one of the substrates being transparent. The polymer is a compound which is obtained by photopolymerization of a prepolymer containing a (meth)acryloyl compound having a stilbene skeleton, or a (meth)acryloyl compound including dioxane group or dioxolane group. The liquid crystalline optical device can be driven with a lower applied voltage and exhibits a reduced hysteresis.Type: GrantFiled: September 12, 1995Date of Patent: October 7, 1997Assignee: NEC CorporationInventors: Tomohisa Gotoh, Taisaku Nakata, Hideya Murai, Etsuo Hasegawa
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Patent number: 5674960Abstract: High refractive index copolymers comprised of monomers having the formula: ##STR1## wherein X is H or CH.sub.3 ; m is 0-10;Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 (n=1-10) iso OC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;Ar is an aromatic ring which is unsubstituted or substituted with H, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl, Br, C.sub.6 H.sub.5 or CH.sub.2 C.sub.6 H.sub.5 ; and n is 1-5; anda cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed. Intraocular lenses made of the copolymers which can be inserted into an aphakic eye through a relatively small incision are also disclosed.Type: GrantFiled: January 30, 1996Date of Patent: October 7, 1997Assignee: Nestle S.A.Inventors: Farhad Hod Namdaran, Albert Raymond LeBoeuf
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Patent number: 5663260Abstract: A process for preparing hyperbranched polymers from AB monomers and C monomers Using a self-constructing approach is disclosed along with the hyperbranched polymers of a living-like character produced by such process.Type: GrantFiled: November 8, 1994Date of Patent: September 2, 1997Assignee: Cornell Research Foundation, Inc.Inventors: Jean M.J. Frechet, Sadahito Aoshima
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Patent number: 5659010Abstract: A nonlinear optical material composed of a polyimide obtained from a diamine and/or a diacid anhydride or dithioacid anhydride substituted by a portion having a nonlinear optical effect or of molecules having a benzocyclobutene structure substituted at the portions having an nonlinear linear optical effect.Type: GrantFiled: June 6, 1995Date of Patent: August 19, 1997Assignee: Fujitsu LimitedInventors: Wataru Sotoyama, Satoshi Tatsuura, Tetsuzo Yoshimura, Azuma Matsuura, Tomoaki Hayano
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2'-hydroxyphenyl benzotriazole based UV absorbing polymers and photographic elements containing them
Patent number: 5610000Abstract: An ultraviolet absorbing polymer, and photographic elements containing such a polymer, which polymer includes units formed from monomers of the structure of formula (II): A photographic element containing an ultraviolet absorbing polymer which includes units formed from monomers of the structure of formula (I): ##STR1## wherein: p and q are, independently, 0 or 1;L and L.sub.2 are bivalent linking groups;R.sub.9 is a non-hydrogen group which does not contain any unsaturated carbon-carbon bonds;R.sub.10 is H, alkyl group, aryl group, or heterocyclyl group;A is an ethylenically unsaturated polymerizable group; the benzene ring of the benzotriazole and the 2'-hydroxyphenyl ring each may be further substituted or unsubstituted.Type: GrantFiled: May 31, 1995Date of Patent: March 11, 1997Assignee: Eastman Kodak CompanyInventors: Lal C. Vishwakarma, Hwei-Ling Yau, Tienteh Chen -
Patent number: 5587444Abstract: A novel copolymer affording a highly efficient electroluminescent element by the use of which the movement of electric charge occurs very efficiently and a full color luminescence is possible, a process for producing the same and an electroluminescent element, are provided, which copolymer is prepared by copolymerizing N-vinylcarbazole as an electron-transporting compound with a specified cumarin derivative as a luminescent compound; which process comprises copolymerizing a specified quantity of a specified cumarin derivative with a specified quantity of N-vinylcarbazole in the presence of a polymerization initiator or a catalyst; and which electroluminescent element is prepared by using a thin film obtained from the copolymer.Type: GrantFiled: December 27, 1994Date of Patent: December 24, 1996Assignee: Chisso CorporationInventors: Manabu Uchida, Takenori Izumizawa, Kenji Furukawa
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Patent number: 5587441Abstract: A process for preparing hyperbranched polymers from AB monomers using a self constructing approach is disclosed. Hyperbranched polymers of a living-like character produced by such process are also disclosed.Type: GrantFiled: November 8, 1994Date of Patent: December 24, 1996Assignee: Cornell Research Foundation, Inc.Inventors: Jean M. J. Frechet, Sadahito Aoshima
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Patent number: 5569739Abstract: The disclosure describes a multilayer article of manufacture comprising a substrate having adhered to it a terminally unsaturated adhesive polyimide, where the surface of the adhesive opposite the substrate is adhered to a polyimide, the article further characterized in having one set or a plurality of alternating layers of the terminally unsaturated adhesive polyimide and the polyimide. the bonding operation.A novel adhesive polyimide is also described which is an adhesive polyimide such as ODPA-APB terminated with unsaturated heterocyclic monoamines such as azaadenines, aminobenzotriazoles, aminopurines or aminopyrazolopyrimidines and optionally anhydrides, aminoacetylenes, vinylamines or amino phosphines. The novel polyimide may also contain unsaturated heterocyclic groups in the polymer backbone or chain, either as a partial or complete replacement for the aromatic diamines used in synthesizing the polyimide.Type: GrantFiled: February 17, 1994Date of Patent: October 29, 1996Assignee: International Business Machines CorporationInventors: Eleftherios Adamopoulos, Kang-Wook Lee, Terrence R. O'Toole, Sampath Purushothaman, Jane M. Shaw, Alfred Viehbeck, George F. Walker
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Patent number: 5523367Abstract: A composition which comprises a water-polymer and a process for using the polymer to absorb a fluid are disclosed. The water-insoluble polymer comprises repeate units derived from: (a) an ampholytic monomer which is a polymerizable vinylic amine-containing monomer and an acid having an ethylenic moiety; (b) at least one olefinic comonomer; and optionally, (c) one crosslinking agent which has at least two polymerizable olefinic functionalities wherein the olefinic functionalities are suitable for crosslinking.Type: GrantFiled: January 23, 1995Date of Patent: June 4, 1996Assignee: Phillips Petroleum CompanyInventor: Iqbal Ahmed
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Patent number: 5521269Abstract: The present invention relates to a spiropyran compound represented by the formula (1); an optically active spiropyran compound wherein an asymmetric center is introduced on a spirocarbon; and optical functional materials using these compounds, ##STR1## wherein R.sup.1 is alkyl group having 1 to 20 carbon atoms, aralkyl group, hydroxyethyl group, methacryloxymethyl group or methacryloxyethyl group; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are each hydrogen atom, alkyl group having 1 to 6 carbon atoms, aryl group, aralkyl group, alkoxy group having 1 to 5 carbon atoms, hydroxymethyl group, carboxyl group, halogen atom, amino group, cyano group, trichloromethyl group, trifluoromethyl group or nitro group; R.sup.6 and R.sup.7 are the same or different and are each hydrogen atom, alkyl group having 1 to 6 carbon atoms, aryl group, aralkyl group, halogen atom, cyano group or nitro group; R.sup.Type: GrantFiled: November 14, 1994Date of Patent: May 28, 1996Assignee: Otsuka Kagaku Kabushiki KaishaInventor: Akira Miyashita
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Patent number: 5516914Abstract: 2-(2-Hydroxyphenyl)-2H-benzotriazole UV-absorbers substituted at the 5-position of the benzo ring by a thioether group exhibit enhanced absorption in the near visible range (over 350 nm) allowing said compounds to be particularly effective in protecting polymer systems which are prone to degradation caused by actinic irradiation with wavelengths over 350 nm.Type: GrantFiled: November 1, 1993Date of Patent: May 14, 1996Assignee: Ciba-Geigy CorporationInventors: Roland A. E. Winter, Volker H. von Ahn, Tyler A. Stevenson, Mark S. Holt, Ramanathan Ravichandran
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Patent number: 5510456Abstract: A polymer represented by the following formula (III) ##STR1## wherein R.sub.1 and R.sub.2 each independently represents H, a straight or branched alkyl group or alkoxy group having 1 to 20 carbon atoms, X is S, O, or NR.sub.3, R.sub.3 represents a straight or branched akyl group having 1 to 6 carbon atoms or a phenyl group, Y represents R.sub.4 S.sup.+ R.sub.5 M.sup.- or OR.sub.6, R.sub.4 and R.sup.5 each independently represent a straight or branched alkyl group having 1 to 5 carbon atoms, or form a heterocyclic ring together with sulfur, and M.sup.- is an anion, R.sub.6 represents H or a straight or branched alkyl group having 1 to 10, m is 1 to 2, and n represents a degree of polymerization and is a value larger than 5.Type: GrantFiled: June 16, 1994Date of Patent: April 23, 1996Assignee: Showa Denko K. K.Inventors: Reiko Ichikawa, Yoshiaki Ikenoue, Fred Wudl
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Patent number: 5451638Abstract: A copolymer of a TMI/amino compound 1:1 monoadduct with ethylenically unsaturated comonomers is provided, as well as a process for producing the same. Such copolymers in and of themselves may find use as aminoplast crosslinking agents, or can readily be modified thereto. Curable compositions can be formulated from the crosslinker alone or in combination with polyfunctional active hydrogen compounds, which can be cured to produce crosslinked films and objects.Type: GrantFiled: March 14, 1994Date of Patent: September 19, 1995Assignee: Cytec Technology Corp.Inventors: Jeno G. Szita, Robert G. Lees
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Patent number: 5439996Abstract: A process for the production of high molecular weight poly(vinyl ethers) and the like in which a selected monomer is polymerized in the presence of a metallocene-type catalyst is described. Vinyl ether monomers, N-vinylcarbazole and 1.5-10 hexadiene can be polymerized, in high yield using an initiator of the formula Cp*TiMe.sub.3 in the presence of a co-initiator of the formula B(C.sub.6 F.sub.5).sub.3. Novel dihydropyran polymers, such as poly 3,4-dihydropyran have also been produced.Type: GrantFiled: June 1, 1994Date of Patent: August 8, 1995Assignee: Queen's University at KingstonInventors: Michael C. Baird, Qinyan Wang
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Patent number: 5436349Abstract: 2-(2-Hydroxyphenyl)-2H-benzotriazole UV-absorbers substituted at the 5-position of the benzo ring by a sulfoxide or sulfone group exhibit enhanced absorption in the near visible range (over 350 nm) allowing said compounds to be particularly effective in protecting polymer systems which are prone to degradation caused by actinic irradiation with wavelengths over 350 nm.Type: GrantFiled: November 1, 1993Date of Patent: July 25, 1995Assignee: Ciba-Geigy CorporationInventors: Roland A. E. Winter, Volker H. von Ahn, Tyler A. Stevenson, Mark S. Holt, Ramanathan Ravichandran
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Patent number: 5420187Abstract: A pigment-dispersing agent obtained by polymerizing an addition-polymerizable monomer having an acidic functional group and other addition-polymerizable monomer in the presence of a polymerization initiator, the polymerization initiator being a diazotization product prepared by diazotizing at least one compound selected from the group consisting of an anthraquinone derivative having an aromatic amino group, an acridone derivative having an aromatic amino group and an organic dyestuff having an aromatic amino group. The above pigment-dispersing agent provides a water-based pigment dispersion which forms a water-based coating composition or water-based ink having excellent gloss, excellent clearness and high tinting strength, and the gloss, clearness and tinting strength of the water-based coating composition are comparable to those of existing oil coating compositions.Type: GrantFiled: September 1, 1993Date of Patent: May 30, 1995Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Atsushi Endo, Akimitsu Mochizuki, Michichika Hikosaka, Tsutomu Fujigamori
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Patent number: 5408022Abstract: An antimicrobial polymerizable composition comprising an ethylenically unsaturated monomer, a specific monomer having antimicrobial activity and a polymerization initiator. The composition gives, upon polymerization, a polymer having permanent antimicrobial activity, which is very useful for medical articles, in particular dental materials.Type: GrantFiled: October 19, 1992Date of Patent: April 18, 1995Assignee: Kuraray Co., Ltd.Inventors: Satoshi Imazato, Mitsuo Torii, Yasuhiko Tsuchitani, Koji Nishida, Junichi Yamauchi
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Patent number: 5405926Abstract: This invention provides novel polyethers and polycarbonates which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and high modulator devices.These polyethers and polycarbonates are the polymerization product of one or more monomers having the formula ##STR1## in which Z is a conjugated heterocyclic substituent having a NO.sub.2 or a CN group. Further, the invention relates to a method of making the polycarbonate by a ring opening polymerization in the presence of an electric field. In a separate embodiment, the invention relates to non-linear optical devices made with these polymers.Type: GrantFiled: October 12, 1993Date of Patent: April 11, 1995Assignee: The University of AkronInventors: William J. Brittain, Joseph J. Kulig, Collin G. Moore
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Patent number: 5403901Abstract: High refractive index copolymers comprised of monomers having the formula: ##STR1## wherein X is H or CH.sub.3 ;m is 0-10;Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 (n=1-10) iso OC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;Ar is an aromatic ring which is unsubstituted or substituted with H, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl, Br, C.sub.6 H.sub.5 or CH.sub.2 C.sub.6 H.sub.5 ; and n is 1-5; anda cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed. Intraocular lenses made of the copolymers which can be inserted into an aphakic eye through a relatively small incision are also disclosed.Type: GrantFiled: November 24, 1993Date of Patent: April 4, 1995Assignee: Nestle S.A.Inventors: Farhad H. Namdaran, Albert R. LeBoeuf
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Patent number: 5395556Abstract: Base polymers devoid of non-linear optical properties exhibiting second order non-linear optical properties after the covalent attachment of tricyanovinyl groups to pendant side chains of the base polymer. Methods of preparing a polymer having second order non-linear optical properties by reacting the base polymers of the present invention with tetracyanoethylene in a basic solvent at elevated temperatures.Type: GrantFiled: October 9, 1991Date of Patent: March 7, 1995Assignee: Enichem S.p.A.Inventors: Kevin J. Drost, Pushkara R. Varanasi, Kwan-Yue A. Jen, Michael A. Drzewinski
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Patent number: 5393644Abstract: Crosslinked polymer layers having nonlinear optical properties are produced by a process in which (A) diallyl esters of aromatic dicarboxylic acids or mixtures thereof with monoallyl monoalkyl esters of aromatic dicarboxylic acids are copolymerized with compounds having nonlinear optical activities and containing groups capable of polymerization or (B) prepolymers of diallyl esters of aromatic dicarboxylic acids or prepolymers of mixtures of diallyl esters of aromatic dicarboxylic acids and monoallyl monoalkyl esters of aromatic dicarboxylic acids are mixed with compounds having nonlinear optical activity and with or without polymerizable groups (=guest/host system), applied to a substrate and, after orientation in an electric field above 50.degree. C., crosslinked in a reaction which is initiated thermally or by free radicals.Type: GrantFiled: December 16, 1993Date of Patent: February 28, 1995Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Heike Kilburg, Hans-Joachim Lorkowski, Karl Pfeiffer
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Patent number: 5393645Abstract: Structured polymer layers having nonlinear optical properties are produced by a process wherein either organic compounds containing ethylenically unsaturated groups are subjected to free radical copolymerization (A) with stilbene, azo or azomethine compounds containing ethylenically unsaturated groups and donor and acceptor groups, or organic compounds containing ethylenically unsaturated groups are subjected to free radical polymerization and are mixed (B) with stilbene, azo or azomethine compounds containing ethylenically unsaturated groups and donor and acceptor groups, the copolymers (A) or mixtures (B) thus obtained are exposed imagewise to high-energy radiation, the unexposed parts are removed and the structured polymer layers thus obtained are polarized in an electric field for orientation of the chromophoric structural units in the region of the glass transition temperature of the polymer and crosslinked in an applied electric field.Type: GrantFiled: December 16, 1993Date of Patent: February 28, 1995Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Heike Kilburg, Hans-Joachim Lorkowski, Karl Pfeiffer
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Patent number: 5393825Abstract: This invention relates to a continuous film, coating, membrane or extruded filament of a crosslinked vinyl lactam polymer having excellent substrate adhesion, a glass transition temperature (Tg) above 150.degree. C. and water repellent properties. The invention also relates to the method of preparing and using filaments, coatings and membranes of said crosslinked polymeric product.Type: GrantFiled: May 13, 1994Date of Patent: February 28, 1995Assignee: ISP Investments Inc.Inventors: Susan Y. Tseng, Philip F. Wolf, William J. Burlant
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Patent number: 5385997Abstract: Novel, linear, film-forming polymers and copolymers can be coated on certain metal surfaces, which polymers or copolymers are derived from one or more classes of ethylenically-unsaturated monomers and include at least one novel monomer having a bidentate chelating moiety. The polymers which contain bidentate chelating groups provide significant and varied chemical modification to a metal surface. When coated on a metal surface the polymers are useful as a protective coating or a priming layer.Type: GrantFiled: April 5, 1991Date of Patent: January 31, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gavin M. Buchan, Ian J. Ferguson
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Patent number: 5380807Abstract: Polycondensation of, for example, squaric acid with a benzodihydropyrrole, benzodithiazole, neocuproine, terthienyl or an aromatic diamine gives a semiconductive alternating copolymer having a small band gap. It is alternatively possible to use croconic acid or 5,6-dihydroxy-5-cyclohexene-1,2,3,4-tetraone instead of squaric acid.Type: GrantFiled: January 8, 1993Date of Patent: January 10, 1995Assignee: U.S. Philips CorporationInventors: Edsko E. Havinga, Wolter Ten Hoeve, Hans Wijnberg
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Patent number: 5374701Abstract: Diarylacetylenes and diarylenamines are synthesized from a Schiff's base and an N-arylmethylheterocycle; these compounds are useful as intermediates for a variety of polymers; in particular an efficient process is provided for producing diaryl acetylenes useful in the efficient production of acetylene group-containing polymers which can be cross-linked to produce high strength polymers free of structural defects such as conventionally arise as a result of liberation of volatiles during the cross-linking.Type: GrantFiled: May 4, 1993Date of Patent: December 20, 1994Inventors: Allan S. Hay, Martino Paventi
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Patent number: 5373075Abstract: An adhesive composition capable of post-cure expansion comprising a multifunctional (meth)acrylate and a maleimide capable of effectuating expansion upon post-cure. A homogeneous mixture of a monomer and maleimide are subjected to a first cure heat stage wherein a rigid partially-cured plastic is formed and a post-cure heart stage to effectuate permanent expansion of the cured adhesive composition.Type: GrantFiled: February 1, 1994Date of Patent: December 13, 1994Assignee: Loctite CorporationInventors: Eerik Maandi, Richard D. Rich
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Patent number: 5367038Abstract: An isoquinoline polymer having a degree of polymerization of at least 5 is produced from an (iso)quinoline dihalide by a reaction with a zero-valent nickel compound, or an electrolytic reduction in the presence of a nickel compound. Since it is excellent in heat-resistivity and soluble in organic solvents, this polymer can be shaped by a dry-process into fibers, films or the like. Its depolarization degree and electrochemical oxidation-reduction potential can be controlled according to its structure.Type: GrantFiled: March 10, 1992Date of Patent: November 22, 1994Assignee: Tokyo Institute of TechnologyInventors: Takakazu Yamamoto, Takaki Kanbara
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Patent number: 5354826Abstract: Polymeric color couplers with repeating units of a polymerized monomer K of formula I ##STR1## with R.sup.1 H or an optionally substituted alkyl group;R.sup.2, R.sup.3, R.sup.4 (identical or different) H, Cl, --COOH or optionally substituted alkyl groups; andX H or a group releaseable by coupling provide, during chromogenic development: magenta dye images with high dye yield and advantageous absorption level.Type: GrantFiled: April 28, 1993Date of Patent: October 11, 1994Assignee: Agfa-Gevaert AGInventors: Gunter Helling, Rainer Bialek, Ralf Weimann
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Patent number: 5354823Abstract: This invention relates to a continuous film, coating, membrane or extruded filament of a crosslinked vinyl lactam polymer having excellent substrate adhesion, a glass transition temperature (Tg) above 150.degree. C. and water repellent properties. The invention also relates to the method of preparing and using filaments, coatings and membranes of said crosslinked polymeric product.Type: GrantFiled: August 9, 1993Date of Patent: October 11, 1994Assignee: ISP Investments Inc.Inventors: Susan Y. Tseng, Philip F. Wolf, William J. Burlant
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Patent number: 5334485Abstract: Photosensitive, photocurable, compositions contain a polymeric backbone which are basic in an aqueous environment having a pendant photosensitive group. The pendant groups are styryl-amine or nitrogen heterocyclic groups which contain an ethylenically unsaturated photocross-linking group. The pendant styryl-amine or nitrogen heterocyclic groups can cross-link two polymer chains by photo addition through ethylenically unsaturated groups in the styryl moiety forming a cyclobutane crosslinked site. The cross-linking is accomplished by irradiating the material with visible light or ultraviolet radiation of appropriate wave length, depending on the absorbitivity of the system. The photocurable polymer can be formulated into useful systems including in liquid resists, pre-coated film resists, etc. and can be used in both negative or positive imaging systems.Type: GrantFiled: November 5, 1991Date of Patent: August 2, 1994Assignee: The Chromaline CorporationInventors: Lawrence C. Van Iseghem, Alexander S. Gybin
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Patent number: 5321084Abstract: A second order nonlinear optically-active azo monomer comprising a benzimidazole moiety. The monomers can be incorporated into both linear and crosslinked polymers useful in electrooptical devices.Type: GrantFiled: July 12, 1993Date of Patent: June 14, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Elisa M. Cross, Cecil V. Francis
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Patent number: 5312871Abstract: This invention concerns a "living" free radical polymerization process for preparing polymers having a narrow distribution of molecular weights.Type: GrantFiled: July 27, 1993Date of Patent: May 17, 1994Assignee: Carnegie Mellon UniversityInventors: Daniela Mardare, Krzysztof A. Matyjaszewski
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Patent number: 5302679Abstract: An adhesive composition capable of post-cure expansion comprising a multifunctional methacrylate and a maleimide capable of effectuating expansion upon post-cure. A homogeneous mixture of a monomer and maleimide are subjected to a first cure heat stage wherein a rigid partially-cured plastic is formed and a post-cure heat stage to effectuate permanent expansion of the cured adhesive composition.Type: GrantFiled: August 6, 1992Date of Patent: April 12, 1994Assignee: Loctite CorporationInventors: Eerik Maandi, Richard D. Rich
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Patent number: 5290892Abstract: High refractive index copolymers comprised of monomers having the formula: ##STR1## wherein X is H or CH.sub.3 ;m is 0-10;Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 ; (n=114 10) iso OC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;Ar is an aromatic ring which is unsubstituted or substituted with H, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl, Br, C.sub.6 H.sub.5 or CH.sub.2 C.sub.6 H.sub.5 ;and n is 1-5; anda cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed. Intraocular lenses made of the copolymers which can be inserted into an aphakic eye through a relatively small incision are also disclosed.Type: GrantFiled: June 14, 1993Date of Patent: March 1, 1994Assignee: Nestle S.A.Inventors: Farhad H. Namdaran, Albert R. LeBoeuf
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Patent number: 5290908Abstract: Aromatic polyimides with acetylenic end groups are cured by coupling together thermally or catalytically using cuprous salts as catalysts to increase molecular weight with little or no by-product formation. These polyimides can be shaped and formed prior to the coupling.The acetylenic end-capped aromatic polyimides are formed by the reaction of an aromatic dianhydride, an acetylenic organic monoamine compound which will provide the reactive end groups and optionally an aromatic diamine.Type: GrantFiled: January 24, 1975Date of Patent: March 1, 1994Assignee: The University of Notre Dame du LacInventor: Gaetano F. D'Alelio
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Patent number: 5290891Abstract: The invention relates to a process for the preparation of polymers based on polyindoles by chemical polymerization of indole in the presence of an oxidizing agent and of a solvent.The invention also relates to compositions and electroconductive devices containing the polyindoles thus obtained and to the use of the polymers obtained.Type: GrantFiled: April 16, 1992Date of Patent: March 1, 1994Assignee: Solvay (Societe Anonyme)Inventors: Denis Billaud, Etienne Hannecart, Claude Franquinet
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Patent number: 5274102Abstract: Epoxy functional copolymers of a higher .alpha.-olefin, and an unsaturated dicarboxylic acid ester formed by copolymerization of olefin, acid ester and ethylenically unsaturated glycidyl compound can be used to form nitrogen, oxygen, phosphorus and/or sulfur-containing lubricant additives by reaction of the epoxy functionality in such a copolymer with glycidyl-reactive compounds containing nitrogen, oxygen, phosphorus and/or sulfur atoms. Alternatively, the copolymerization reaction can utilize the olefin, unsaturated acid ester, and an ethylenically unsaturated compound containing the nitrogen, phosphorus and/or sulfur atom, which compound is formed by reaction of ethylenically unsaturated glycidyl compound and an epoxy-reactive nitrogen, phosphorus, and/or sulfur-containing compound.Type: GrantFiled: February 19, 1993Date of Patent: December 28, 1993Assignee: Akzo nvInventors: Theodore A. Marolewski, Eric W. Burkhardt, Uwe H. Wallfahrer
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Patent number: 5270413Abstract: Copolymeric compositions derived from polydienophilic monomers and aliphatic cyclobutene monomers according to the formula ##STR1## in which each R is independently selected from hydrogen, halide, C.sub.1-10 alkyl, aryl and C.sub.1-10 heteroatomic such as alkoxy, aryloxy, alkylthio, arylthio and dialkylamino; X is a divalent linking group; an n is 2.Type: GrantFiled: November 24, 1992Date of Patent: December 14, 1993Assignee: Shell Oil CompanyInventor: Larry S. Corley
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Patent number: 5268437Abstract: This invention relates to high temperature aqueous processes for the polymerization of monoethylenically unsaturated carboxylic monomers to produce low molecular weight, water-soluble polymer products useful as detergent additives, scale inhibitors, dispersants and crystal growth modifiers. Suitable monomers include acrylic acid, methacrylic acid, maleic acid, maleic anhydride, crotonic acid, and itaconic acid. The reactions are run at temperatures ranging from about 130.degree. C. to 240.degree. C., preferably from about 140.degree. C. to about 230.degree. C. The process can be continuous, semi-continuous, or batch.Type: GrantFiled: January 22, 1992Date of Patent: December 7, 1993Assignee: Rohm and Haas CompanyInventors: Norman L. Holy, Newman M. Bortnick, Graham Swift, Kathleen A. Hughes
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Patent number: 5262515Abstract: A curable fluorine-containing polyimide of the formula: ##STR1## wherein R.sup.1 is a group derived from an aromatic tetracarboxylic acid dianhydride by the removal of two acid anhydride groups,R.sup.2 is a group derived from an aromatic diamine by the removal of two amino groups,A.sup.1 is a residue of the formula: ##STR2## (wherein R.sup.2 is the same as defined above, and Z is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms),A.sup.2 is a residue of the formula: ##STR3## (wherein R.sup.1 and Z are the same as defined above), and n is a number of 0 to 90, and at least one of the groups R.sup.1 and R.sup.Type: GrantFiled: July 10, 1990Date of Patent: November 16, 1993Assignee: Daikin Industries, Ltd.Inventors: Motonobu Kubo, Tsutomu Kobayashi
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Patent number: 5252689Abstract: A novel, one component self-crosslinking resin and a process for its preparation are provided. The resin is the copolymer of:(I) N-hydroxysuccinimide-blocked meta-isopropenylalpha, alpha-dimethylbenzyl isocyanate;(II) a hydroxy group-containing ethylenically unsaturated monomer such as hydroxyethyl acrylate; and(III) optionally, an ethylenically unsaturated monomer free of hydroxy groups such as methylmethacrylate or butyl acrylate.The copolymers are useful as thermally stable fast curing one component resins for paint, and produce, upon heat curing, films and objects with good hardness and solvent resistance.Type: GrantFiled: October 20, 1992Date of Patent: October 12, 1993Assignee: American Cyanamid CompanyInventors: Howard R. Lucas, Kuang-Jong Wu, William F. Jacobs
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Patent number: 5252730Abstract: A polymer composition having intense magnetic properties and a method for preparation of same. A phthalimide compound and an aromatic dialiphatic acid are reacted in the presence of a metal catalyst at elevated temperatures to form a phenylenebis diphthalimidine compound. The phenylenebis diphthalimidine compound is then reacted with 3-benzylidine phthalimidine and a metal salt of an aliphatic acid at elevated temperatures under an inert gas to form the intensely magnetic polymer. The reactions may be carried out in the presence of a solvent.Type: GrantFiled: April 10, 1992Date of Patent: October 12, 1993Assignee: Northrop CorporationInventor: Jack D. Mackey