Monomer Containing At Least Two Carboxylic Acid Ester Groups Patents (Class 526/321)
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Patent number: 6180687Abstract: In vivo polymerizable intraocular lens compositions which comprise substituted fluoroalkyl or perfluoroalkyl monomers having anionic, cationic, and/or nonionic surface active functionality in the unsaturated fluorophobic ends. The compositions are preferably cured by UV photoinitiation and are useful in repairing torn or detached retinal tissue or forming intraocular lenses in situ.Type: GrantFiled: May 17, 1999Date of Patent: January 30, 2001Assignees: Alcon Laboratories, Inc., University of Southern MississippiInventors: Mark E. Hammer, Steven T. Charles, John C. Lang, Robert Y. Lochhead, Lon J. Mathias
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Patent number: 6174649Abstract: Cinnamate-containing photopolymers for use in liquid crystal display are provided. The photopolymers can be homopolymers or copolymers, and have improved thermostability and photoelectric characteristics. The photopolymers contain a substituted benzene ring and have a weight average molecular weight of from about 1000 to about 100,000. Methods for forming LCD cells using the cinnamate-containing homopolymers and copolymers are also provided.Type: GrantFiled: November 11, 1998Date of Patent: January 16, 2001Assignee: Samsung Display Devices Co., Ltd.Inventors: Jae Geun Park, Do Yun Kim, Hwan Jae Choi, Joo Young Kim
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Patent number: 6174980Abstract: The present invention provides a method for producing a cement dispersant having high percentage in water reduction-rate and appropriate air-entraining property. This method for producing a polycarboxylic acid for a cement dispersant is characterized in that alkylene oxide is added at a specific temperature range.Type: GrantFiled: December 16, 1997Date of Patent: January 16, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Tsuyoshi Hirata, Tsutomu Yuasa, Katsuhisa Shiote, Koichiro Nagare, Syogo Iwai
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Patent number: 6166158Abstract: A cross-linkable polymeric casting composition including an effective amount ofA: an acrylic or methacrylic monomer which provides high rigidity and low colour dispersion (High Abbe number) to the final product;B: a di- or polythiol compound;C: a di- or polyvinyl monomer; and optionallyD: a polymerisable comonomer.Type: GrantFiled: July 16, 1999Date of Patent: December 26, 2000Assignee: Sola International Holdings Ltd.Inventors: Huan Kiak Toh, Ian Roger Bateman, David Robert Diggins, Bohdan Grzegorz Cieslinski
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Patent number: 6156862Abstract: The invention relates to heat-hardenable paint composition which contains (A) vinyl based copolymer of hydroxyl group value from 20 to 200 mg KOH/g, being a copolymer of from 5 to 70 wt % hydroxyl group containing a particularly defined vinyl based monomer and from 95 to 30 wt % other vinyl based monomer (a-2), and (B), a particularly defined 1,3,5-triazine-2,4,6-triscarbamic acid ester, or an oligomer thereof, in which the mol ratio of hydroxyl groups originating from the aforementioned (A) component: NHCOOR groups originating from the aforementioned (B) component in the composition is from 1:3 to 3:1.Type: GrantFiled: February 3, 1999Date of Patent: December 5, 2000Assignee: BASF Coatings AGInventors: Ingo Luer, Kishio Shibatoh, Akito Nukita
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Patent number: 6143851Abstract: A process for the preparation of an addition product of a linear telechelic difunctional unsaturated polymer containing terminal functional reactive groups other than vinyl groups, involves simultaneously reacting at least one cyclic olefin of from about 4 to 30 carbon atoms, at least one difunctional acyclic olefin of up to about 30 carbon atoms, and at least one reactant YZ in the presence of at least one olefin metathesis catalyst to prepare an addition product of a linear difunctional unsaturated polymer, wherein YZ is capable of adding to a carbon--carbon double bond under ROMP reaction conditions.Type: GrantFiled: March 29, 2000Date of Patent: November 7, 2000Assignee: BP Amoco CorporationInventors: Philip O. Nubel, Howard B. Yokelson, William H. Frye, Tsuei-Yun Lynch, Larry C. Satek, George A. McConaghy
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Patent number: 6140435Abstract: Cross-linked copolymers possessing high thickening and suspending properties obtainable by polymerization of monomeric systems comprising a) 10-97% of at least one unsaturated carboxylic acid, b) 0-80% of at least one alkyl ester of an unsaturated acid, c) 0.5-80% of an associative monomer, d) 0-20% of an unsaturated amide, e) 0.2-20% of a suitable cross-linking agent and f) 0-20% of an unsaturated sulfonic acid; processes for their preparation, which comprise polymerization by precipitation, suspension and solution polymerizations or emulsion polymerization; latexes comprising up to 50% or more of said copolymers; said cross-linked copolymers and said latexes whenever prepared by the above polymerization processes; their use as thickening agents of aqueous, or substantially aqueous systems; and the new cross-linking agents.Type: GrantFiled: April 8, 1998Date of Patent: October 31, 2000Assignee: 3V, Inc.Inventor: Matteo Zanotti-Russo
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Patent number: 6130304Abstract: The present invention can provide a water-absorbent or water-retention material comprising water-absorbent resin derived from monomer unit components comprising 40 to 99 wt. % of hydroxyl alkyl (meth)acrylate, 1 to 60 wt. % of (meth)acrylic acid and/or alkali metal salt thereof and 0.00001 to 3 wt. % of crosslinking agent; and a water-absorbent or water-retention material comprising water-swellable polymer which is obtained by further thermally crosslinking a particles of partially alkaline neutralized product of a copolymer of 20 to 99 mol % of acrylamide and 1 to 80 mol % of acrylic acid. The water-absorbent or water-retention material of the present invention is not readily subject to an influence of salts, and the absorbency does not deteriorate with respect to an aqueous solution containing a great amount of metallic ion of salts.Type: GrantFiled: May 13, 1997Date of Patent: October 10, 2000Assignee: Sanyo Chemical Industries, Ltd.Inventors: Takashi Sumiya, Masami Koike, Yoji Fujiura, Mihoko Nomoto
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Patent number: 6127500Abstract: Allylic copolymer resins and processes for making them are disclosed. The resins are made by copolymerizing an ethylenic monomer, a monofunctional allyl monomer, and a multifunctional allyl monomer under free-radical conditions. The multifunctional allyl monomer is used in an amount and manner effective to give a copolymer resin having a polydispersity (Mw/Mn) within the range of about 5 to about 30. The resins, which are easy to make with even bulk polymerization, are particularly valuable, for example, as toner resins, thermoset resins, reactive plasticizers, and rheology modifiers.Type: GrantFiled: September 9, 1999Date of Patent: October 3, 2000Assignee: Arco Chemical Technology, L.P.Inventors: Shao Hua Guo, Daniel B. Pourreau
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Patent number: 6121399Abstract: The specification describes various polymers having monomer of formula (I): ##STR1## In formula (I), R1 and R2 are, independently, hydrogen, a C.sub.1 -C.sub.24 alkyl group, an aromatic or heteroaromatic group, a C.sub.3 -C.sub.8 cycloalkyl or C.sub.2 -C.sub.7 heterocycloalkyl group, or a --C(O)R3 group in which R3 is a C.sub.1 -C.sub.24 alkyl group, an aromatic or heteroaromatic group, a C.sub.3 -C.sub.8 cycloalkyl or C.sub.2 -C.sub.7 heterocyclic group; or a --CH.sub.2 --C(O)--R4 group in which R4 is a C.sub.1 -C.sub.6 alkyl group. At least one of R1 and R2 is a --C(O)R3 group. The polymer may be a homopolymer or a copolymer containing other ethylenically unsaturated monomers. The polymer may be used in a variety of coating compositions such as inks, adhesives, paints and films. Unique monomers where both R1 and R2 are acetoacetyl groups and novel monomers where R2 is an acetoacetyl group are also described.Type: GrantFiled: October 23, 1997Date of Patent: September 19, 2000Assignee: Eastman Chemical CompanyInventors: Dean Charles Webster, Allen Lynn Crain, Chadwick Edward Marlow
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Patent number: 6121398Abstract: The synthesis of liquid molding resins derived from plant oils that are capable of curing to high modulus thermosetting polymers and composites is described in this invention. The resins described resemble the unsaturated polyester, vinyl ester and epoxy resins presently used as the polymer matrix material in high performance glass, carbon, aramid and natural fiber reinforced composite materials. The resins disclosed herein are suitable for polymer and composite manufacture by Resin Transfer Molding (RTM), Reaction Injection Molding (RIM), Vacuum Assisted Resin Transfer Molding (VARTM), Seeman's Composite Resin Infusion Manufacturing Process (SCRIMP), Atmospheric Pressure Molding (APM), open mold casting, spray-up, Sheet Molding Compound (SMC) Bulk Molding Compound (BMC), filament winding, pultrusion, prepregs, lamination and compression molding.Type: GrantFiled: April 28, 1998Date of Patent: September 19, 2000Assignee: University of DelawareInventors: Richard Wool, Selim Kusefoglu, Giuseppe Palmese, Shrikant Khot, Ralph Zhao
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Patent number: 6107428Abstract: A monomer having a structure expressed as: ##STR1## wherein R.sub.1 is a hydrogen atom, --OH group, --COOR.sub.5 group, or group expressed as: ##STR2## R.sub.2 is a hydrogen atom, --CH.sub.3 group, or --CH.sub.2 COOR.sub.4 group, R.sub.3 is a hydrogen atom, --OH group, or --CH.sub.2 COOR.sub.4 group, R.sub.4 is a hydrogen atom, sodium atom, potassium atom, or --NH.sub.4 group, and R.sub.5 is a sodium atom, potassium atom, or --NH.sub.4 group; a polymer having a structure unit expresses as: ##STR3## wherein R.sub.1 through R.sub.5 are identical with the above; and a composition containing a polymer that excels the conventional chleating agents in chleating and dispersing effects besides rendering excellent biodegradability. Therefore, the composition is preferably used as a detergent composition, an inorganic pigment dispersing agent, a fiber treatment agent, a water treatment agent (anti-scale agent), and a bleaching assistant for wood pulp, etc.Type: GrantFiled: October 23, 1998Date of Patent: August 22, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Shigeru Yamaguchi, Keisi Tuboi
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Patent number: 6107427Abstract: The invention is concerned with novel cross-linkable, photoactive polymer materials with 3-aryl-acrylic acid esters and amides as well as their use as orienting layers for liquid crystals and for the production of non-structured or structured optical elements and multi-layer systems.Type: GrantFiled: September 4, 1996Date of Patent: August 22, 2000Assignee: Rolic AGInventors: Rolf-Peter Herr, Fran.cedilla.ois Herzog, Andreas Schuster
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Patent number: 6060570Abstract: A process for the preparation of an addition product of a linear telechelic difunctional unsaturated polymer containing terminal functional reactive groups other than vinyl groups, involves simultaneously reacting at least one cyclic olefin of from about 4 to 30 carbon atoms, at least one difunctional acyclic olefin of up to about 30 carbon atoms, and at least one reactant YZ in the presence of at least one olefin metathesis catalyst to prepare an addition product of a linear difunctional unsaturated polymer, wherein YZ is capable of adding to a carbon--carbon double bond under ROMP reaction conditions.Type: GrantFiled: August 7, 1997Date of Patent: May 9, 2000Assignee: BP Amoco CorporationInventors: Philip O. Nubel, Howard B. Yokelson, William H. Frye, Tsuei-Yun Lynch, Larry C. Satek, George A. McConaghy
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Patent number: 6057412Abstract: An amphipathic compound represented by any of the following Formulas: ##STR1## (R.sub.1 is a linear or branched, saturated hydrocarbon group having 6 to 48 carbon atoms, or a linear or branched, unsaturated hydrocarbon group containing 1 to 12 unsaturated double bond and having 6 to 48 carbon atoms; Y is NH, N--(CH.sub.2 --CH.dbd.CH.sub.2), or O; Q is --CH.sub.2 --C(R.sub.2).dbd.CH.sub.2 or --R.sub.4 --O--CO--C(R.sub.2).dbd.CH.sub.2 ; and M is alkali metal, an ammonium group, or --(CH.sub.2 CH.sub.2 O).sub.m H), a copolymer of the amphipatic compound with a copolymerizable ethylenically unsaturated compound and, a paper making additive containing a water soluble or dispersible high molecular compound as an active ingredient and processes for producing these high molecular compounds.Type: GrantFiled: July 17, 1998Date of Patent: May 2, 2000Assignee: Mitsui Chemicals, Inc.Inventors: Toshihiko Takaki, Masaru Tanabe, Hiroshi Itoh, Masayuki Yanagi, Shoko Oyanagi, Hiroyoshi Watanabe
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Patent number: 6048661Abstract: Provided are polymeric compounds which, when used as base resins in resist materials, can yield chemical resist materials having high sensitivity, high resolution, a high exposure latitude, and good process adaptability, exhibiting excellent resistance to plasma etching, and giving resist patterns having high thermal resistance, as well as chemically amplified positive type resist materials using such polymeric compounds as base resins. These chemically amplified positive type resist materials use a base resin comprising a polymeric compound having a weight-average molecular weight of 1,000 to 500,000 and having one or more hydroxyl and/or carboxyl groups in the molecule, part or all of the hydrogen atoms of the hydroxyl and/or carboxyl groups being replaced by groups of the following general formula ##STR1## and additionally contain an acid generator, a dissolution inhibitor, a basic compound, and an aromatic compound having a group of the formula .tbd.C--COOH.Type: GrantFiled: March 2, 1998Date of Patent: April 11, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tsunehiro Nishi, Jun Hatakeyama, Shigehiro Nagura, Toshinobu Ishihara
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Patent number: 6046292Abstract: Mesogens are provided based on substituted unsaturated carboxylic acids such as acrylic and methacrylic acid. Substitution of a variety of hydrophobic tails onto the carboxylic acid or acid derivative via the vinyl carbon proximal to the carbonyl of the carboxylic acid results in mesogens that are capable of forming thermotropic and single-phase lyotropic mesophases over a broad range of compositions. The mesophases can be polymerized to lock in the ordered phases.Type: GrantFiled: February 3, 1999Date of Patent: April 4, 2000Assignee: The Univeristy of Southern MississippiInventors: Robert Y Lochhead, Lon J Mathias
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Patent number: 6037431Abstract: Inexpensive absorbing agent and method for readily and satisfactorily collecting and removing a surfactant from a solution, such as a surfactant-containing liquid waste, are provided. The absorbing agent includes, for example, a crosslinked polymer having a polyoxyalkylene chain. The surfactant is absorbed by bringing the above-arranged absorbing agent into contact with the solution. A particularly preferable crosslinked polymer is produced by crosslinking polyalkylene glycol or polymerizing a monomeric component including a monomer based on (meta)acrylic ester expressed by General Formula below:CH.sub.2 .dbd.CR--CO--(X.sup.1).sub.n --Y.sup.1where R is a hydrogen atom or a methyl group, X.sup.1 is an oxyalkylene group having up to 5 carbon atoms, Y.sup.1 is a hydrogen atom, an alkoxy group having up to 5 carbon atoms, a phenoxy group, or an oxyalkylphenyl group having up to 3 alkyl groups each having up to 9 carbon atoms as a substitutional group, and n is a positive number ranging from 3-100 in average.Type: GrantFiled: May 30, 1997Date of Patent: March 14, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Shorbu Shioji, Tomoki Gomi, Takashi Namba
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Patent number: 5998101Abstract: The present invention provides novel photopolymers for use in liquid crystal display. The photopolymers are cinnamate-containing photopolymers wherein a mesogen, preferably containing a benzene ring, is introduced between a polyvinyl main chain and a cinnamate group, and also wherein the cinnamate group can be substituted with a cyanide group, an alkyl group, a halogen atom or a fluorocarbonyl group. The cinnamate-containing photopolymers have improved stability and photoelectric properties, and improved pre-tilt angle. The photopolymers can be used to form an orientation film for an LCD in a non-rubbing process, and can be used alone or with a cross linking agent.Type: GrantFiled: October 16, 1997Date of Patent: December 7, 1999Assignee: Samsung Display Devices Co., Ltd.Inventors: Jae Geun Park, Do Yun Kim, Hwan Jae Choi, Joo Young Kim
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Patent number: 5986031Abstract: Allylic copolymer resins and processes for making them are disclosed. The resins are made by copolymerizing an ethylenic monomer, a monofunctional allyl monomer, and a multifunctional allyl monomer under free-radical conditions. The multifunctional allyl monomer is used in an amount and manner effective to give a copolymer resin having a polydispersity (Mw/Mn) within the range of about 5 to about 30. The resins, which are easy to make with even bulk polymerization, are particularly valuable, for example, as toner resins, thermoset resins, reactive plasticizers, and rheology modifiers.Type: GrantFiled: May 26, 1998Date of Patent: November 16, 1999Assignee: Arco Chemical Technology, L.P.Inventors: Shao Hua Guo, Daniel B. Pourreau
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Patent number: 5981677Abstract: Radiation-curable compositions based on radiation-curable, free-radically polymerizable compounds comprise .alpha.-olefins having more than 8 carbon atoms.Type: GrantFiled: November 20, 1996Date of Patent: November 9, 1999Assignee: BASF AktiengesellschaftInventors: Lukas Haussling, Ludwig Bernhard, Wolfgang Reich, Reinhold Schwalm, Erich Beck, Gabriele Hartmann
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Patent number: 5973033Abstract: Compounds containing two cyclic hydrocarbon moieties which are substituted to provide crosslinking functionality and which are linked to each other by secondary or tertiary oxycarbonyl containing moiety are basis for compositions which are cured to provide cured thermosets for encapsulation and underfill for electronic components that are thermally decomposable to allow repair, replacement, recovery or recycling of operative electronic components from assemblies that are inoperative.Type: GrantFiled: October 26, 1998Date of Patent: October 26, 1999Assignee: Cornell Research Foundation, Inc.Inventors: Christopher K. Ober, Hilmar Koerner
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Patent number: 5945489Abstract: The liquid oligomeric compositions of this invention are made by the Michael addition reaction of acetoacetate functional donor compounds with multifunctional acrylate receptor compounds where the equivalent ratios of multifunctional acrylate to acetoacetate vary from .gtoreq.1:1 to .gtoreq.13.2:1 depending on the functionality of both multifunctional acrylate and acetoacetate. Unuseable gelled or solid oligomer products occur below the claimed ranges. The liquid oligomers of this invention are further crosslinked to make coatings, laminates and adhesives.Type: GrantFiled: September 19, 1997Date of Patent: August 31, 1999Assignee: Ashland, Inc.Inventors: Thomas M. Moy, Laurence Dammann, Roman Loza
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Patent number: 5942303Abstract: A resin composition for polymerization casting containing:20 to 60% by weight of a monomer (1) represented by the formula (1) ##STR1## wherein R.sup.1 stands for a hydrogen atom or a methyl group, R.sup.2 stands for an alkylene group having 2 to 4 carbon atoms, m and n each is an integer of 2 to 5;10 to 40% by weight of a monomer (2) represented by the formula (2) ##STR2## wherein R.sup.3 stands for a hydrogen atom or a methyl group, R.sup.4 and R.sup.5 are the same or different groups and each stands for an alkylene group having 2 to 4 carbon atoms, j and k each is 0 or 1; and5 to 70% by weight of a monomer (3), the monomer (3) being identical with neither monomers (1) nor (2), and containing at least one vinyl group in a molecule thereof.Type: GrantFiled: February 20, 1997Date of Patent: August 24, 1999Assignee: NOF CorporationInventors: Katsuyoshi Tanaka, Shuji Suyama, Tetsuro Tashiro
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Patent number: 5939505Abstract: In a process for the polymerization of aqueous ethylene vinyl acetate emulsions wherein the polymerization is carried out in the presence of a stabilizing system comprising polyvinyl alcohol and a surfactant, the improvement which comprises using a stabilizing system consisting essentially of 2 to 8% polyvinyl alcohol and 0.25 to 4% of at least one surface-active compound comprising the addition products of 50 to 70 moles of ethylene oxide adducted to straight-chained or branch-chained alkanols or alkylphenols containing 6 to 22 carbon atoms in the alkyl group and having an HLB value equal to or greater than 18.0, the amounts being based on total vinyl acetate.Type: GrantFiled: December 16, 1997Date of Patent: August 17, 1999Assignee: National Starch and Chemical Investment Holding CorporationInventor: Pravin Kukkala
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Patent number: 5914283Abstract: A film comprises glass fiber impregnated with a low dielectric polymer obtained by polymerizing a monomeric composition comprising a fumaric acid diester monomer and optionally a vinyl monomer. The polymer having a low dielectric constant and reduced dielectric loss is used as an electrically insulating material in a high frequency band of at least 500 MHz.Type: GrantFiled: January 29, 1997Date of Patent: June 22, 1999Assignee: TDK CorporationInventors: Toshiaki Yamada, Takeshi Takahashi, Atsushi Yakuwa, Hideaki Ninomiya, Naoyuki Amaya, Naoki Saito, Yasuhiro Imamura, Norihiro Kaiya
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Patent number: 5863662Abstract: A terpolymer for ink jet recording comprises by weight, 1-99% of a vinyl lactam, preferably vinyl pyrrolidone, 1-99% of a polymerizable carboxylic acid, preferably acrylic acid and 1-99% of 2-carboxyethyl (meth)acrylate, preferably crosslinked with a polyfunctional aziridine, This terpolymer forms water-insoluble coatings on a support such as paper or polyester which are particularly receptive to water-based ink jet printing inks.Type: GrantFiled: May 14, 1996Date of Patent: January 26, 1999Assignee: ISP Investments Inc.Inventors: John C. Hornby, Domingo I. Jon, Jenn S. Shih
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Patent number: 5859160Abstract: A free radical curable composition that includes a free radical curable and a vinyl aromatic compound that is chemically different than the free radical curable component, wherein the vinyl aromatic compound is present in an amount sufficient to decelerate the cure rate of the free radical composition without adversely effecting completion of cure and the properties of the curable composition after it has cured. The composition is particularly useful as a two part adhesive that includes a free radical catalyst system and a diene elastomer.Type: GrantFiled: January 9, 1997Date of Patent: January 12, 1999Assignee: Lord CorporationInventors: Robin F. Righettini, Kirk J. Abbey
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Patent number: 5830966Abstract: Compounds of general formula (I) ##STR1## characterised in that R.sup.1 and R.sup.2 are independently selected from the group consisting of COOR, CN, aryl, substituted aryl, COOH, halogen, C(O)NHR.sup.4, C(O)NR.sup.5 R.sup.6 ;X and Y are independently selected from the group consisting of H, COOH, COOR, CN, R.sup.3 CO--, C(O)NHR.sup.4, C(O)NR.sup.5 R.sup.6, P(O)(OR.sup.7).sub.2 and SO.sub.2 R.sup.8 ; with the proviso that X and Y are not both H; or X and Y together with the carbon atom to which they are attached form a carbocyclic or heterocyclic ring system which can contain oxygen, sulfur or nitrogen atoms; and R, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are various groups;and polymers and copolymers derived from such compounds.Type: GrantFiled: January 26, 1996Date of Patent: November 3, 1998Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific & Industrial Research OrganisationInventors: San Hoa Thang, Ezio Rizzardo, Graeme Moad
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Patent number: 5811503Abstract: Describes polymerizable organic compositions of from about 30 to 95 weight percent of a first monomer component which is an alkoxylated diol, e.g., alkoxylated bisphenol, having acrylate or methacrylate groups, i.e., dimethacrylate of bisphenol A having an average of 1 to 4 ethoxy units, and from about 5 to 70 weight percent of a second monomer component which is an alkoxylated diol, e.g., alkoxylated bisphenol, having acrylate or methacrylate groups, i.e., dimethacrylate of bisphenol A having 25 to 70 ethoxy units. Optionally there may also be present from about 0 to 65 weight percent of at least one monomer component which is selected from: (i) a monoethylenically unsaturated monomer that is polymerizable by free radical initiation; (ii) a bis?(meth)acryloyl-terminated!polyethylene glycol monomer; and (iii) a monomer having at least three terminal ethylenically-unsaturated groups. Substantially completely cured polymerizates prepared from such compositions may be used to prepare photochromic articles, e.g.Type: GrantFiled: November 27, 1996Date of Patent: September 22, 1998Assignee: PPG Industries, Inc.Inventors: Robert D. Herold, Randy E. Daughenbaugh, Charles R. Wiedrich
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Patent number: 5801238Abstract: A method for producing a water absorbent resin comprising the step of radically polymerizing a water-soluble radically polymerizable monomer having an acid group or a group of the salt thereof and optionally a polysaccharide in the presence of water using a crosslinking agent (C), wherein 0.0001 to 1 weight % of a thiol compound (D) having a radically polymerizable double bond, based on the above mentioned water-soluble radically polymerizable monomer (A), is used as the copolymerizing component to provide a water absorbent resin having a high absorbency and a good gel stability after absorbing body fluid, and a water absorbent comprising the water absorbent resin produced thereby.Type: GrantFiled: September 10, 1996Date of Patent: September 1, 1998Assignee: Sanyo Chemical Industries, Ltd.Inventors: Keiji Tanaka, Masashi Date, Kenjiro Tsubota, Tsuyoshi Yuki, Satoshi Tamabuchi
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Patent number: 5739181Abstract: Transparent substrates are rendered resistant to fogging by the application of a hardcoat composition comprising finely divided silica, a multi-functional olefin containing two or more olefinic moieties and one or more divalent oxyalkylene radicals having the formula:--((CX2).sub.n O).sub.x ((CX2)O).sub.y --where the sum of the x stoichiometric subscripts for each divalent oxyalkylene radical and the sum of the y stoichiometric subscripts for each divalent oxyalkylene radical when said sums are added together is ten or greater and the stoichiometric subscripts n and m are different and have values independently ranging from one to ten, where each X is independently selected from the group consisting of hydrogen, one to forty carbon atom monovalent hydrocarbon radicals and six to forty carbon atom monovalent aromatic hydrocarbon and an olefinically functionalized trialkoxysilane followed by curing.Type: GrantFiled: June 7, 1996Date of Patent: April 14, 1998Assignee: General Electric CompanyInventors: Igor V. Khudyakov, George F. Medford
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Patent number: 5739243Abstract: Describes polymerizable organic compositions of from about 5 to 90 weight percent of a first monomer component which is an alkoxylated diol, e.g., alkoxylated bisphenol, having acrylate or methacrylate groups, e.g., a dimethacrylate of bisphenol A having 25 to 35 ethoxy units, and from about 10 to 95 weight percent of a second monomer component which is different than the first monomer component and has at least three acrylate or methacrylate groups. There may also be present, from 0 to about 85 weight percent of a third polymerizable monomer component which has a single ethylenically unsaturated group that is polymerizable by free radical initiation. Substantially completely cured polymerizates prepared from such compositions may be used to prepare photochromic articles, e.g., lenses, by incorporating a photochromic substance, e.g., by thermal transfer, into the polymerizate.Type: GrantFiled: November 27, 1996Date of Patent: April 14, 1998Assignee: PPG Industries, Inc.Inventors: Robert D. Herold, Charles R. Wiedrich
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Patent number: 5726266Abstract: Copolymers comprisea) from 1 to 65 mol % of at least one diketene of the general formula I ##STR1## where R.sup.1 and R.sup.2, independently of one another, are each hydrogen or C.sub.1 -C.sub.30 -alkyl,b) from 30 to 70 mol % of at least one ethylenically unsaturated dicarboxylic acid or one dicarboxylic acid derivative,c) from 0.5 to 60 mol % of at least one ethylenically unsaturated hydrocarbon andd) up to 20 mol % of at least one further ethylenically unsaturated monomer,modified copolymers are obtainable by reacting these copolymers with NH-, SH- and/or OH-functional compounds, and the unmodified or modified copolymers are used as additives for mineral oil middle distillates.Type: GrantFiled: September 24, 1996Date of Patent: March 10, 1998Assignee: BASF AktiengesellschaftInventors: Dieter Faul, Joachim Roser, Heinrich Hartmann, Gabriele Dralle-Voss, Knut Oppenlander, Bernd Wenderoth
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Patent number: 5710220Abstract: There is a provided a stable low viscosity graft polymer dispersion comprising from 25 to 60 weight percent based on the total weight of the polymer dispersion of at least three ethylenically unsaturated monomers polymerized in the presence of a reaction moderator and a free radical initiator in a polyol mixture initially containing less than 0.1 moles of induced unsaturation per mole of said polyol mixture. One of the monomers in the mixture of ethylenically unsaturated monomers is a hydroxylfunctional or aminofunctional C.sub.2 -C.sub.6 alkyl methacrylate.Type: GrantFiled: July 10, 1995Date of Patent: January 20, 1998Assignee: BASF CorporationInventors: Duane A. Heyman, James A. Gallagher
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Patent number: 5700585Abstract: There are provided powder-free polymer coated rubber articles coated with a non-tacky acrylic based emulsion copolymer formed by polymerization of at least one low surface energy monomer, at least one alkyl acrylate and at least one hard monomer. The copolymers are preferably formed by sequential polymerization.Type: GrantFiled: June 7, 1995Date of Patent: December 23, 1997Assignee: Avery Dennison CorporationInventor: Ivan Lee
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Patent number: 5698649Abstract: Copolymers which contain a) from 2 to 50 mol % of vinyl alkyl ethers having 3 to 30 carbon atoms in the molecule, b) from 10 to 88 mol % of monoethylenically unsaturated dicarboxylic anhydrides and c) from 10 to 88 mol % of dialkyl esters of monoethylenically unsaturated dicarboxylic acids as typical monomer units in polymerized form are prepared by copolymerizing the monomers a), b) and c) at from 40.degree. to 180.degree. C. in the presence of free radical initiators and are used as film-forming resins in hair sprays and, in the form of the alkali metal, ammonium or alkaline earth metal salts, as thickeners for aqueous systems, such as cosmetic and pharmaceutical formulations, textile print pastes, liquid detergents and cleaning agents.Type: GrantFiled: May 13, 1996Date of Patent: December 16, 1997Assignee: BASF AktiengesellschaftInventors: Harald Meyer, Walter Denzinger, Axel Sanner, Hans Richter, Hans-Juergen Raubenheimer, Franz Frosch
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Patent number: 5693320Abstract: Novel acetylsalicylic acid derivatives having general formula (I) are provided, in which R.sup.1 is hydrogen or methyl; R.sup.2 is --O-- or --NH--; and W is hydroxy, halogen, lower alkoxy, lower alkenyloxy, lower alkynyloxy, cycloalkyloxy, aryloxy, aralkyloxy, acyloxy, or --N(R.sup.3)(R.sup.4) wherein the lower alkoxy, the lower alkenyloxy, the lower alkynyloxy, the cycloalkyloxy, the aryloxy, the aralkyloxy, and the acyloxy are optionally substituted with hydroxy, carboxyl, lower alkoxy, lower alkyl, halogen, nitro, and amino. The invention also pertains to a polymer made from such derivatives and a medical equipment containing the polymer. The polymer is useful in the prevention of platelet aggregation thereon.Type: GrantFiled: March 12, 1996Date of Patent: December 2, 1997Assignee: Ube Industries, Ltd.Inventors: Masamune Sakai, Hiroyuki Ikeda, Noriaki Kaneko, Yutaka Tamura
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Patent number: 5663266Abstract: This invention provides latex compositions prepared using, for example, both acetoacetoxyethyl methacrylate (AAEM) and t-butylaminoethyl methacrylate (t-BAMA) which when applied to a pre-coated substrate, possess out-standing wet adhesion when compared to waterborne polymers containing either AAEM or t-butylaminoethyl methacrylate alone. The latex compositions of this invention continue to exhibit superior wet adhesion after storage at room temperature for one year. The latex compositions are thus particularly useful in coating compositions, especially coating bare or previously-coated metals, paper, plastics, wood, textiles, and in adhesives.Type: GrantFiled: April 12, 1995Date of Patent: September 2, 1997Assignee: Eastman Chemical CompanyInventors: James W. Taylor, James R. Salisbury
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Patent number: 5646221Abstract: An adhesive base material comprises a polymer obtained by polymerizing a glucosyloxy alkyl (meth)acrylate, a hydroxyalkyl (meth)acrylate, an alkyl (meth)acrylate and a polyfunctional monomer. This adhesive base material can be caused to swell uniformly because of its good swelling property and exhibits excellent adhesion to the skin so that it is useful as adhesive layers in plasters, various medical pads and also medicament-impregnated dermatologic medicines.Type: GrantFiled: March 25, 1996Date of Patent: July 8, 1997Assignee: Kowa Co., Ltd.Inventors: Toshio Inagi, Makoto Kanebako
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Patent number: 5633334Abstract: A process for the preparation of emulsion polymers comprising 70 to 95% by weight of a vinyl ester and 5 to 30% by weight ethylene, the polymerization being carried out in the presence of 2 to 8% by weight of a protective colloid consisting of a blend of 1 to 3 percent by weight of 80% hydrolyzed polyvinyl alcohol, 0 to 2 percent by weight of 88% hydrolyzed polyvinyl alcohol and 1 to 3 percent by weight of 96% hydrolyzed polyvinyl alcohol, the blend having an average level of hydrolysis of 85 to 88%.Type: GrantFiled: January 16, 1996Date of Patent: May 27, 1997Assignee: National Starch and Chemical Investment Holidng CorporationInventors: James L. Walker, Paul R. Mudge, Josephine M. Rosenski
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Patent number: 5621057Abstract: Alkenyl ether-siloxane compositions comprising(A) an oligomeric or polymeric organosilicon compound having on average more than one alkenyloxy group of the formulaR.sup.2 --CH.dbd.CH--O-- (VI)(B) a monomeric maleic and/or fumaric acid compound of the formula ##STR1## in which R.sup.2 is a hydrogen atom or the methyl radical,R.sup.3 is identical or different and is a hydrogen atom, a hydrocarbon radical having 1 to 16 carbon atoms, which can be interrupted by oxygen, sulfur or oxygen- or silicon-containing units, a substituted hydrocarbon radical having 1 to 6 carbon atoms, a silyl radical or a siloxanyl radical,R.sup.4 is identical or different and is a hydrogen atom, chlorine, bromine, fluorine or an optionally substituted alkyl radical andZ is an oxygen atom or a radical --NR.sup.5 --, where R.sup.5 has one of the meanings given for R.sup.3,optionally(C) initiators which form free radicals and optionally(D) inhibitors for regulating the pot life.Type: GrantFiled: May 31, 1995Date of Patent: April 15, 1997Assignee: Wacker-Chemie GmbHInventors: Christian Herzig, Bernward Deubzer, Martina Bloechl, David Huettner, Walter Magee
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Patent number: 5612432Abstract: An optical sheetlike article possessing a glass transition point and a softening point both higher than 130.degree. C., a modulus of elasticity when bent of more than 50 kgf/mm.sup.2, a double refraction index not greater than 30 nm, a yellowness index of not greater than 5, a specific gravity of not more than 1.5, an amount of deflection of not more than 10 mm in a load flexure test, and a thickness of more than 0.3 mm and not more than 0.7 mm is provided, and is ideal for use in optical filters for display devices, substrates for liquid crystal display devices, substrates for optical recording discs, and optical lenses, among others.Type: GrantFiled: August 16, 1994Date of Patent: March 18, 1997Assignee: Toray Industries, Inc.Inventors: Takashi Taniguchi, Kazuo Tanaka, Shinya Adachi, Masaki Maekawa
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Patent number: 5610226Abstract: A composition is disclosed which contains about 80.0 to about 99.9% by weight of a (meth)acrylate monomer having a structure represented by a formula (I) or a mixture of the (meth)acrylate monomer and alkyl acrylate having an alkyl ester comprising alcohol of 1 to 8 carbon atoms, and about 20.0 to about 0.1% by weight of a crosslinking monomer copolymerizable with the (meth)acrylate monomer. The composition can be used in formulating elastomeric compositions having a favorable balance of properties.Type: GrantFiled: May 22, 1995Date of Patent: March 11, 1997Assignee: Sumitomo Chemical Company, LimitedInventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama, Tadaaki Nishiyama
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Patent number: 5607620Abstract: A novel LCP material based on fumarate and maleate di-esters is disclosed having general formula (I); R.sub.1 and R.sub.2 may may not be the same but have general structure (II); (a)=(b), (c), (d); p=2 to 14; q=0 or 1; r=1 or 2; s=1 or 2; X.dbd.O, CO.sub.2, O.sub.2 C, CH.sub.2 ; Y.dbd.C.sub.2 H.sub.4, O, CO.sub.2, O.sub.2 C; Z.dbd.CN, halogen, R, CO.sub.2 R, OR, O.sub.2 CR, wherein R=chiral or achiral.Type: GrantFiled: December 6, 1994Date of Patent: March 4, 1997Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland of Defence Research AgencyInventors: Mark A. Verrall, David Coates
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Patent number: 5602265Abstract: Process for triglyceride oil fractionation using a crystallisation modifying substance which isi. a copolymer having subunits A and B of which subunit A is derived from maleic acid or itaconic acid and subunit B is derived from vinyl alcohol, alkyl substituted vinyl alcohol, acrylic acid or styrene, A and B being present in a ratio of 10:1 to 1:10, where 5-100% of the the maleic acid or itaconic acid subunits are connected to unbranched (C8-C24)-alkyl chains and where 0-100% of the vinyl alcohol or alkyl substituted vinyl alcohol or acrylic acid subunits are connected to unbranched (C1-C8)-alkyl chains and whereii. inulin or phlein of which 5-100% of the hydroxyl groups on the fructose subunits are connected to (C8-C24) unbranched alkyl chains and 0-95% of the hydroxyl groups have been esterified with a (C1-C8)-alkyl containing fatty acid, preferably acetic acid.Type: GrantFiled: July 19, 1994Date of Patent: February 11, 1997Assignee: Van den Bergh Foods Co., Division of Conopco, Inc.Inventors: Marcelle van den Kommer, Paul R. Smith, Adrianus Visser, Cornelis Winkel, Deryck Cebula
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Patent number: 5587446Abstract: 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: June 1, 1995Date of Patent: December 24, 1996Assignee: Cornell Research Foundation, Inc.Inventors: Jean M. J. Frechet, Sadahito Aoshima
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Patent number: 5574121Abstract: A process for preparing an absorbent resin includes the steps of: preparing a first crosslinking agent (A) including at least two polymerizable unsaturated bonds; preparing a second crosslinking agent (B) including at least two polymerizable unsaturated bonds and hydroxyl groups; preparing a crosslinking agent including (A) and (B) with a ratio of (A) to (B) ranging from 95/5 to 50/50; and polymerizing a hydrophilic unsaturated monomer having at least one carboxyl group using the crosslinking agent. The crosslinking agent includes a crosslinking agent which includes a main component at least 90 percent by weight, the main component being an ester having at least two polymerizable unsaturated bonds, wherein the ester is composed of a polyhydroxy alcohol (C) having not more than six carbon atoms and at least three hydroxy groups, and an unsaturated carboxylic acid (D); and a molecular weight ratio of the main component to a standard compound (E) is in the range of from 0.7/1 to less than 1.Type: GrantFiled: June 17, 1994Date of Patent: November 12, 1996Assignee: Nippon Shokubai Co., Ltd.Inventors: Yoshio Irie, Nobuyuki Harada, Kinya Nagasuna, Kohichi Hirota, Yoshihiko Masuda, Hideaki Nagano, Hideyuki Kubo
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Patent number: 5574097Abstract: The invention relates to non-crosslinked non-polypeptide polymers containing biodegradable lipophilic side chains incorporating methylene diester units of the formula --[--CO--O--C(R.sup.1 R.sup.2)--O--CO--]--, where R.sup.1 and R.sup.2 each represents a hydrogen atom or a carbon-attached monovalent organic group or R.sup.1 and R.sup.2 together form a carbon-attached divalent organic group. The lipophilic moieties are biodegradatively cleavable to yield a water-soluble polymer.Type: GrantFiled: January 10, 1995Date of Patent: November 12, 1996Assignee: Nycomed Imaging ASInventors: Jo Klaveness, Keith Redford, Jan Solberg, Per Strande
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Patent number: 5539071Abstract: Suspension-polymerized, crosslinked copolymers of methacrylic anhydride yield beads suitable as precursors for weak-acid and other ion exchange resins, affinity chromatography materials and other materials which require spherical polymers having reactive anhydride groups for their preparation. Both gel and macroporous beads of these copolymers may be made by the process of the invention.Type: GrantFiled: June 6, 1995Date of Patent: July 23, 1996Assignee: Rohm and Haas CompanyInventor: Larry W. Steffler