Solid Polymer Derived From Carboxylic Acid Or Derivative Monomer Patents (Class 522/153)
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Patent number: 6706408Abstract: An inorganic substrate with two or more coating layers is provided. The first coating layer is attached to the inorganic substrate and includes the polymeric reaction product formed upon hydrolysis of a silane compound having at least two tri(C1-C3)alkoxysilyl groups. The second and subsequent coating layers include at least one hydrophilic polymer and at least one photoactivatable cross-linking agent. The inorganic substrate can be a medical device suitable for insertion into the body of a mammal. The coatings are tenacious and not easily removed from the inorganic substrate by abrasion.Type: GrantFiled: May 16, 2002Date of Patent: March 16, 2004Assignee: SurModics, Inc.Inventor: Bruce M. Jelle
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Patent number: 6703073Abstract: Crosslinked polyacrylates obtained by crosslinking, induced by means of UV radiation, of a polymer mixture comprising a) polyacrylate copolymers of the following monomers a1) acrylic acid and/or acrylic esters of the following formula CH2═CH(R1)(COOR2), where R1═H or CH3 and R2 is an alkyl chain having 1-20 carbon atoms, at 70-99% by weight, based on component (a), a2) olefinically unsaturated monomers containing functional groups, at 0-15% by weight, based on component (a), a3) tert-butyl acrylate, at 1-15% by weight, based on component (a), and b) a photocationic initiator at 0.01-25% by weight, based on the overall polymer mixture.Type: GrantFiled: January 31, 2001Date of Patent: March 9, 2004Assignee: tesa AGInventors: Marc Husemann, Stephan Zöllner
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Patent number: 6689463Abstract: The present invention relates to a composition for coating optical fibers that includes a UV curable coating composition. The composition includes at least one component having at least one heterocyclic moiety capable of undergoing ring opening polymerization. The composition may also include at least one acrylate functional end group. The acrylate functional group may be on the same component as the heterocyclic moiety or on a second component. The cured composition has a Young's Modulus of at least about 100 MPa.Type: GrantFiled: December 18, 2001Date of Patent: February 10, 2004Assignee: Corning IncorporatedInventors: Kevin Y Chou, Michelle D Fabian, Jun Hou, Gregory F Jacobs, David N Schissel, Huan-Hung Sheng
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Patent number: 6686161Abstract: The present invention provides solid supports (e.g., glass) and polymer hydrogels (particularly polymer hydrogel arrays present on a solid support) comprising one or more reactive sites for the attachment of biomolecules, as well as biomolecules comprising one or more reactive sites for attachment to solid supports and polymer hydrogels. The invention further provides novel compositions and methods for the preparation of biomolecules, solid supports, and polymer hydrogels comprising reactive sites. The invention also provides for preparation of crosslinked solid supports, polymer hydrogels, and hydrogel arrays, wherein one or more biomolecules is attached by means of the reactive sites in a photocycloaddition reaction. Advantageously, according to the invention, crosslinking of the hydrogel and attachment of biomolecules can be done in a single step.Type: GrantFiled: October 11, 2001Date of Patent: February 3, 2004Assignee: Amersham Biosciences ABInventors: Travis Johnson, John McGowen, Allyson Beuhler, Charles Kimball Brush, Robert Emil Lajos
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Publication number: 20040014837Abstract: There is described an amine/ester adduct formed between dimethylamine (DMA) and at least one optionally substituted &agr;,&bgr; unsaturated ester obtained or obtainable by reacting a suitable acrylic or methacrylic acid with a suitable alcohol or polyol, chartacterised that said adduct has a level of animation above about 75%. The adduct may be used as a co-activator and/or reactive diluent for UV curable, polymerisable formulations. A process for preparing the adduct is also described as are polymers made therefrom. The adduct and polymers made therefrom are preferably substantially free of free-DMA and/or odour free.Type: ApplicationFiled: August 7, 2003Publication date: January 22, 2004Inventors: Jean-Claude Vanovervelt, Vincent Stone
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Patent number: 6673850Abstract: Photoinitiators of formula (Ia) or (Ib) having chain transfer groups, wherein n is 1 or 2; PI is for example a group of formula (IIa); PI′ inter alia is a group of formula (IIIa); Ar is for example phenyl; Ar2 is inter alia phenylene; R1 and R2 are for example C1-C8alkyl, or R1 and R2 together C2-C9alkylene; M1 inter alia is —NR3R4 or —OH; M1′ is for example a group (c); R3′ is a direct bond, C1-C12alkylene, or phenylene; R3 is for example hydrogen, or C1-C12alkyl; R4 is e.g. C1-C12alkyl; A1 and A2 are for example a direct bond; CT is a chain transfer group; are useful for the preparation of macrophotoinitiators which can be employed for preparing block copolymers.Type: GrantFiled: October 18, 2001Date of Patent: January 6, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Hitoshi Yamato, Masaki Ohwa, Toshikage Asakura, Akira Matsumoto
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Patent number: 6664306Abstract: This invention relates to polymeric compositions that are processible and may be photochemically cured to produce crosslinked compositions useful in coating, sealants and adhesive applications. The crosslinkable composition comprises a first component having a plurality of pendent, free-radically polymerizable functional groups; a polymeric photoinitiator, and a residual content of less than 2%. The composition is melt processable at temperatures of less than or equal to 100° C.Type: GrantFiled: July 22, 2002Date of Patent: December 16, 2003Assignee: 3M Innovative Properties CompanyInventors: Babu N. Gaddam, Steven M. Hellmann, Ahmed S. Abuelyaman, Maureen A. Kavanagh, Duane D. Fansler, Kevin M. Lewandowski
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Patent number: 6649669Abstract: A single solution bonding formulation for dental applications comprising a plurality of at least one self-polymerizable polyvinyl acidic monomer or at least two different polymerizable polyvinyl acidic monomers, a calcium phosphate filler, at least one photoinitiator, optionally an accelerator, optionally a solvent, and optionally a fluoride additive is provided. Additionally, a method for treating enamel, dentin, and/or pulp with the same single solution bonding formulation is provided. The single solution bonding formulation provides for the release of calcium, phosphate and/or fluoride ions which are sufficient in situ to form hydroxyapatite and/or fluorapatite.Type: GrantFiled: December 28, 2001Date of Patent: November 18, 2003Assignee: American Dental Association Health FoundationInventor: Sabine Dickens
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Patent number: 6649230Abstract: A photoactive polymer of the general formula I: in which: P is a photoactive group which can photoisomerise and/or photodimerise; B represents an aromatic or alicyclic group, or B further represents a nitrogen atom or —CR2—; A, C, D each independently of the other represents an aromatic or alicyclic group; M represents a repeating monomer unit in a homo- or copolymer; S1, S2, S3, S4, S5 represent a single covalent bond or a spacer unit; n1, n2 are each independently a positive integer up to 2 with the proviso that n1+n2≦2; R1 is a hydrogen atom, or a straight-chain or branched alkyl residue wherein R2 represents a hydrogen atom or lower alkyl. The photoactive polymers may be used as orientation layers for liquid crystals and in the construction of unstructured and structured optical elements and multi-layer systems.Type: GrantFiled: October 3, 2001Date of Patent: November 18, 2003Assignee: Rolic AGInventors: Hubert Seiberle, Guy Marck, Olivier Muller
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Patent number: 6646022Abstract: A photocuring resin composition comprising a thermoplastic resin (a-1) having a radical polymerizing unsaturated group at its side chain and a photopolymerization initiator (a-2) and substantially not including a crosslinking compound other than (a-1), a photocuring sheet comprising a photocuring resin composition (A) laminated on a substrate sheet (B) and a process of production of the same, a photocuring decorative sheet and photocuring insert molding sheet using the same, and a process of production of a molded article using such a photocuring sheet and an insert molded article obtained by the same.Type: GrantFiled: July 3, 2001Date of Patent: November 11, 2003Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Shougo Okazaki, Yoko Kakuno, Kenji Suemura, Hiroyuki Watanabe
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Patent number: 6641398Abstract: Dental material containing a polymerizable component and a component applied superficially to the polymerizable component, which can be removed after the curing of the polymerizable material with accompanying formation of a rough surface.Type: GrantFiled: August 20, 2001Date of Patent: November 4, 2003Assignee: Ivoclar Vivadent AGInventors: Konrad Hagenbuch, Gerhard Zanghellini
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Patent number: 6630601Abstract: An aromatic polyester is pre-decomposed by heating together with bis-&bgr;-hydroxyethyl terephthalate and/or a low condensate thereof and then, reacted with ethylene glycol to convert the terephthalic acid component of the pre-decomposed product into bis-&bgr;-hydroxyethyl terephthalate and/or a low condensate thereof. The thus obtained solution composition, that is, bis-&bgr;-hydroxyethyl terephthalate solution composition containing ethylene glycol, bis-&bgr;-hydroxyethyl terephthalate and cations and/or anions as impurities is brought into contact with a cation exchanger and/or an anion exchanger to remove cations and anions as impurities to produce bis-&bgr;-hydroxyethyl terephthalate having a small content of ions.Type: GrantFiled: August 17, 2000Date of Patent: October 7, 2003Assignee: Aies Company LimitedInventors: Shuji Inada, Kikuchi Sato
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Patent number: 6627673Abstract: The present invention relates to shape deformable materials, which are capable of (1) being deformed, (2) storing an amount of shape deformation, and (3) recovering at least a portion of the shape deformation when exposed to a humid environment. The shape deformable materials can advantageously be in the form of films, fibers, filaments, strands, nonwovens, and pre-molded elements. The shape deformable materials of the present invention may be used to form products, which are both disposable and reusable. More specifically, the shape deformable materials of the present invention may be used to produce products such as disposable diapers, training pants, incontinence products, and feminine care products.Type: GrantFiled: July 24, 2001Date of Patent: September 30, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Vasily A. Topolkaraev, Dave A. Soerens
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Patent number: 6624273Abstract: Non-tacky, base polymers are plasticized into pressure-sensitive adhesives and comprise: a) about 100 parts by weight of a base copolymer having a Tg greater than about 0° C., wherein the base copolymer is formed from and comprises: (1) about 50 to 70% by weight of a high Tg comonomer component, wherein the homopolymer formed from the high Tg comonomer component has a Tg of at least about 20° C.; (2) optionally, up to about 20% by weight based on the total weight of the base copolymer of an acidic comonomer; and (3) about 30 to 50% by weight of one or more low Tg (meth)acrylate comonomer, wherein the Tg homopolymer of the low Tg comonomer is less than about 20° C., and b) about 1 to about 100 parts based on the base copolymer of a nonreactive, non-volatile, non-acrylic-based plasticizing agent.Type: GrantFiled: August 13, 1999Date of Patent: September 23, 2003Assignee: 3M Innovative Properties CompanyInventors: Albert I. Everaerts, Eric B. T. Moonen, Peter A. Stark
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Publication number: 20030171448Abstract: The invention relates to a method for the production of cross-linked acrylate contact adhesive materials characterised in that polyacrylates are firstly produced from the following monomers by free-radical (co-)polymerisation: (d) acrylic and methacrylic acid monomers with the following structure, where R1═H or CH3 and R2=an alkyl chain with 2-20 C atoms, at a proportion of 45 99.5 wt. % of the monomer mixture, (e) one or several carboxylic acid anhydrides, containing olefinic double bonds, at a proportion of 0.5-25 wt. % of the monomer mixture, (f) further unsaturated olefinic monomers containing functional group A, at a proportion of 0-30 wt. % of the monomer mixture. The polymers thus produced are concentrated to give a polyacrylate material with a solvent content ≦2 wt.Type: ApplicationFiled: November 29, 2002Publication date: September 11, 2003Inventors: Marc Husemann, Stephan Zollner, Nico Diamantis
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Patent number: 6617372Abstract: What is described is a polymeric hydrogel product of a stable, aqueous polymeric composition which composition forms a clear to translucent film upon application to a substrate, and includes, by weight, 5-75% of (a) a water-soluble polymer having (b) in situ-formed, substantially water-insoluble resinous particles of said polymer substantially uniformly dispersed therein, and (c) 25-95% of water, made by irradiating the composition with high energy electron beam or gamma-radiation.Type: GrantFiled: October 23, 2001Date of Patent: September 9, 2003Assignee: ISP Investments Inc.Inventor: Laurence Senak
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Patent number: 6617370Abstract: To provide a method for repairing a coated surface of a vehicle, using an ultraviolet curing resin having excellent quick-drying property, and giving a good finish in a shortened working time, a method for repairing the damage on a coated surface of a vehicle being a depression and/or a depletion of a coating film, which is characterized by comprising the following steps a) to c): a) filling a putty raw material comprising an ultraviolet polymerizing resin composition in an optionally pretreated damage portion and ultraviolet curing the putty raw material to fill the damaged portion with the putty; b) uniformly spray coating, on the coated surface including at least the putty-covered surface after the step a), a primer surfacer raw material comprising an ultraviolet polymerizing resin composition having a viscosity sufficient for spray coating and ultraviolet curing the obtained raw material coating film to form a primer surfacer layer; and c) applying a top coat on the primer surfacer layer obtained in b)Type: GrantFiled: August 23, 2001Date of Patent: September 9, 2003Inventor: Makoto Ueno
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Patent number: 6610761Abstract: The present invention provides an ionizing radiation irradiated rubber molded product and a process for preparing the same, the rubber molded product being prepared by irradiating with an ionizing radiation a preform comprising 5 to 95% by weight of a fluororubber containing vinylidene fluoride copolymerized therein in a proportion of 45 to 88 mole % and having a number average molecular weight of 5,000 to 200,000, and 95 to 5% by weight of an acrylic rubber.Type: GrantFiled: December 8, 2000Date of Patent: August 26, 2003Assignee: Daikin Industries, Ltd.Inventors: Kazuhisa Matsumoto, Yoshihiro Shirai
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Patent number: 6586494Abstract: A radiation-curable inkjet composition for forming 3-D models or images comprising a semi-crystalline or crystalline, low-shrinkage, radiation-curable oligomeric material, a photoinitiator, and a diluent, said inkjet composition having a viscosity of between about 10 to about 50 cps at at least one temperature between 50 to 140° C.Type: GrantFiled: August 8, 2001Date of Patent: July 1, 2003Assignee: Spectra Group Limited, Inc.Inventors: Alexandre Mejiritski, Oleg V. Grinevich, Dustin B. Martin, Douglas C. Neckers
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Patent number: 6579916Abstract: Disclosed are methods for sterilizing cyanoacrylate prepolymer compositions under visible light irradiation conditions wherein the prepolymer remains in polymerizable form after sterilization.Type: GrantFiled: November 21, 2001Date of Patent: June 17, 2003Assignee: MedLogic Global CorporationInventors: Ian N. Askill, Shane C. Karnik, Richard L. Norton
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Publication number: 20030100627Abstract: The present invention relates to a coated optical fiber comprising a glass optical fiber with a single protective coating or a combination of an inner and an outer primary coating applied thereon and optionally with a colored coating subsequently applied thereon wherein the inner primary coating or at least a portion of the single coating is prepared from a radiation curable composition which when cured as a capillary film with a 100W medium pressure mercury lamp has a percentage reacted acrylate unsaturation of at least about 54% after exposure to a dose of about 4.4 mJ/cm2 or wherein the outer primary coating is prepared from a radiation curable composition which when cured as a capillary film with a 100W medium pressure mercury lamp has a percentage reacted acrylate unsaturation of at least about 56% after exposure to a dose of about 4.4 mJ/cm2. The invention further relates to a radiation curable composition having a high cure speed.Type: ApplicationFiled: October 9, 2001Publication date: May 29, 2003Inventors: Timothy E. Bishop, Paul E. Snowwhite, Tyson Norlin, James J. Schouten, John Southwell, Anthony Toussaint
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Patent number: 6569603Abstract: There are disclosed a light-sensitive composition which comprises (A) a polymer having a phenyl group substituted by a vinyl group at a side chain, (B) a photopolymerization initiator and (C) a sensitizer which sensitizes the photo-polymerization initiator, or a light-sensitive composition which comprises (A′) a polymer, the above-mentioned (B) and (C), and (D) a monomer having at least two phenyl groups each of which is substituted by a vinyl group in the molecule of the monomer; and a method of forming a relief image which comprises coating the light-sensitive composition as mentioned above on a support, exposing the composition by exposure or scanning exposure and developing the same to form a relief image on the support.Type: GrantFiled: January 30, 2001Date of Patent: May 27, 2003Assignee: Mitsubishi Paper Mills LimitedInventor: Akira Furukawa
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Patent number: 6565968Abstract: PSAs and protective coatings are provided, and include solvent, emulsion, and hot melt PSAs formulated with at least one benzocyclobutenone (BCBO) monomer. UV-cured PSAs and coatings are provided, and include cured BCBO-containing polymers and cured mixtures of BCBO-containing and OH-containing polymers.Type: GrantFiled: April 12, 2000Date of Patent: May 20, 2003Assignee: Avery Dennison CorporationInventors: Kai Li, Yukihiko Sasaki, Prakash Mallya, Pradeep Iyer
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Patent number: 6541537Abstract: A compound and a method of forming a photopolymerizable acrylated glycidyl acrylic terpolymer resin compound is disclosed. The polymeric resin may be formed in a two-step process. A photopolymerizable acrylic hybrid polymer is suitable for forming films having glass transition temperatures from about −55 degrees C. to about 110 degrees C. A non-aromatic photopolymerizable acrylate polymer may be formed by combining, in a first step, a reactive source of epoxide ion groups. In a second step, the glycidyl acrylic terpolymer formed in the first step is reacted with a catalyst and a source of unsaturated acid or anhydride to form an acrylate polymer. A ring opening reaction is employed such that an acid or an anhydride containing a conjugated double bond forms an acrylated acrylic, an acrylated fluorinated acrylic, an acrylated silonted acrylic, or an acrylated halogenated grafted acrylic. The cure process is initiated with specific UV or visible light promotors and/or with a UV or visible light source.Type: GrantFiled: January 19, 2001Date of Patent: April 1, 2003Assignee: Renaissance Technology LLCInventor: Daniel W. Catena
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Publication number: 20030054284Abstract: According to the present invention, there are provided an insulating film for an organic EL element, which has sufficiently low water permeability and a good sectional form and whose reactivity with a basic material and an electrode made from a metal having a low work function is suppressed, an insulating film for an organic EL element, which enables the formation of a through hole or U-shaped cavity therein and has excellent flattening performance, high transparency and high resistance to a resist stripper, and a radiation sensitive resin composition for forming the insulating film.Type: ApplicationFiled: March 27, 2002Publication date: March 20, 2003Inventors: Masayoshi Suzuki, Hirofumi Sasaki, Isao Nishimura, Fumiko Yonezawa, Masayuki Endo, Kazuaki Niwa
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Patent number: 6531521Abstract: A practically excellent method for preserving a photosensitive composition Containing a photopolymerization initiator and a photopolymerizable monomer and/or oligomer, which comprises placing and preserving the photosensitive composition in a light shielding vessel, wherein the product of the void ratio (%) in the vessel and the oxygen partial pressure (hPa) in the void part is 1500 (%·hPa) or more is provided; and the method imparts remarkably improved preservation stability.Type: GrantFiled: April 17, 2001Date of Patent: March 11, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Koji Baba, Toshiya Inoue, Shigeo Hozumi
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Publication number: 20030036581Abstract: To provide an aqueous emulsion composition which has high adhesion strength for a wide variety of materials including molded products and affords sufficient wettability even for the object to be adhesive bonded of low surface polarity so that it can develop sufficient adhesiveness and whose emulsion is stable so satisfactorily as to provide good mechanical stability and storage stability, and to provide an adherent composition comprising the aqueous emulsion composition, at least ethylene-vinyl acetate copolymer or modified resin thereof, photo polymerization initiator, and unsaturated ethylenic monomer are mixed and dissolved or dispersed, to prepare oil drop component, followed by emulsifying the oil drop component in water by using a surface-active agent, whereby an aqueous emulsion composition, in which micelles each encapsulating at least the ethylene-vinyl acetate copolymer or modified resin thereof, the photo polymerization initiator and unsaturated ethylenic monomer are dispersed in water, is preparedType: ApplicationFiled: July 22, 2002Publication date: February 20, 2003Inventors: Kenji Kuroda, Susumu Okatani, Hiroyuki Shiraki
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Patent number: 6517910Abstract: In one aspect the invention provides an energy efficient polymerization method comprising irradiating a polymerizable composition and a photoinitiator with a source of essentially monochromatic radiation where the photoinitiator and the wavelength of the radiation source are selected such that the extinction coefficient of the photoinitiator at the peak wavelength of the source is greater than about 1000 M−1 cm−1 and such that the photoinitiator absorbs at least two percent of the actinic radiation incident on the coating. In another aspect the invention provides energy efficient methods of polymerizing polymerizable compositions and crosslinking crosslinkable compositions by irradiating the respective compositions with a low power source of essentially monochromatic radiation. The low power energy sources have an input power of less than about 10 W/cm.Type: GrantFiled: February 6, 2001Date of Patent: February 11, 2003Assignee: 3M Innovative Properties CompanyInventors: Robin E. Wright, George F. Vesley
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Patent number: 6512022Abstract: Structured polyacrylates obtainable by crosslinking, induced by UV irradiation, of a polymer mixture comprising the following components: a) polyacrylate copolymers of the following monomers a1) acrylic acid and/or acrylic esters of the following formula CH2=CH(R1)(COOR2), where R1=H or CH3 and R2 is an alkyl chain having 1-20 carbon atoms, at 70-99% by weight, based on component (a), a2) olefinically unsaturated monomers containing functional groups, at 0-15% by weight, based on component (a), a3) tert-butyl acrylate, at 1-15% by weight, based on component (a), and b) a photocationic initiator at 0.01-25% by weight, based on the overall polymer mixture, the structuring of the polyacrylates comprising the presence in the polyacrylates of regions of high crosslinking alongside regions of low crosslinking and/or noncrosslinked regions.Type: GrantFiled: January 29, 2001Date of Patent: January 28, 2003Assignee: tesa AGInventors: Marc Husemann, Stephan Zöllner
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Patent number: 6489377Abstract: The invention relates to a method for producing thermotropic casting resin systems that comprise at least one matrix polymer including at least one thermotropic monomer compound which cannot be mixed with the matrix polymer, whereby the matrix polymer an the thermotropic monomer compound are selected in such a way that their refraction indices are almost the same in a temperatrue range that is below the temperature required for structural change and that reaches the temperature of structural change of the thermotropic monomer compound, the casting resin system being translucent or transparent in this termperature range. After dissolving the monomer thermotropic compund in a matrix solution containing a photohardening oligomer, reactive diluents and photoinitiators and a liquid, photohardenable system is obtained, photoradiation with exclusion of oxygen is carried out for hardening.Type: GrantFiled: January 30, 2001Date of Patent: December 3, 2002Assignee: Fraunhoger-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Taner Bicer, Christoph Schwitalla, Holger Goedeke
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Patent number: 6489375Abstract: An Offset Lithographic Printing Process employing low VOC lithographic printing ink formulations containing monomeric diluents, curable by cationic polymerization in the presence of fountain solution and resin rheology modifiers compatible with cationic catalysts.Type: GrantFiled: September 20, 2001Date of Patent: December 3, 2002Assignee: Sun Chemical CorporationInventors: Edward Stone, Gordon Kotora, Mikhail Laksin, Subhankar Chatterjee, Bhalendra J. Patel
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Patent number: 6465537Abstract: A photocurable composition is provided which can be produced and cured by both free-radical and cationic polymerization modes, which provides a sufficient length of open time to be bonded to an adherend, and which exhibts a good adhesive property. A photocurable composition containing a compound (A) having at least one free-radically polymerizable unsaturated bond in a molecule, a compound (B) having at least one epoxy group in a molecule, a free-radical polymerization catalyst (C), a cationic polymerization catalyst (D) and a compound (E) represented by the following formula (1).Type: GrantFiled: December 22, 2000Date of Patent: October 15, 2002Assignee: Sekisui Chemical Co., Ltd.Inventor: Hiroji Fukui
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Publication number: 20020128342Abstract: New polymers, compositions comprising these polymers, and methods of using these compositions are provided. The polymers comprise styrene and maleic anhydride monomers with at least some of the maleic anhydride monomers having certain functional groups bonded thereto. Preferred functional groups include those derived from adhesion promoters (e.g., 2-aminophenol), photoinitiators (e.g., 4-aminoacetophenone), and solubilizers (e.g., 4-aminobenzoic acid). The polymers can be incorporated according to conventional processes into compositions which are then used to form a color filter to be used in a liquid crystal display. The final color filter has a high resolution, is highly resistant to solvents typically used in the color filter manufacturing process, is strongly adhered to the color filter substrate, has superior optical clarity, is highly soluble in a wide range of alkali developers, and has excellent heat and UV light stability.Type: ApplicationFiled: February 25, 2002Publication date: September 12, 2002Inventors: Gu Xu, Dan W. Brewer, Timothy Limmer, Mike Stroder, Shelly Fowler, Jonathon Mayo
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Patent number: 6448301Abstract: This invention relates to polymeric compositions that are processible and may be photochemically cured to produce crosslinked compositions useful in coating, sealants and adhesive applications. The crosslinkable composition comprises a first component having a plurality of pendent, free-radically polymerizable functional groups; a polymeric photoinitiator, and a residual content of less than 2%. The composition is melt processable at temperatures of less than or equal to 100° C.Type: GrantFiled: September 8, 2000Date of Patent: September 10, 2002Assignee: 3M Innovative Properties CompanyInventors: Babu N. Gaddam, Steven M. Heilmann, Ahmed S. Abuelyaman, Maureen A. Kavanagh, Duane D. Fansler, Kevin M. Lewandowski
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Patent number: 6437014Abstract: The present invention relates to a method for making a heat-resistant elastic article and a heat-resistant elastic article. The invention especially relates to a method of making elastic fibers and polymeric elastic fibers wherein the elastic fibers are capable of withstanding dyeing and heat-setting processes that typically are conducted at elevated temperatures (such as 110-230° C. and especially at greater than or equal to 130° C. for minutes). The inventive method comprises radiation crosslinking an article (or plurality of articles) under an inert or oxygen limited atmosphere (for example, in N2, argon, helium, carbon dioxide, xenon and/or a vacuum) wherein the article (or articles) comprises at least one amine stabilizer and preferably another optional stabilizer additive. More preferably, the radiation crosslinking is performed at a low temperature (−50 to 40° C.).Type: GrantFiled: July 28, 2000Date of Patent: August 20, 2002Assignee: The Dow Chemical CompanyInventors: Thoi H. Ho, Selim Bensason, Rajen M. Patel, Kimberly S. Houchens, Rona L. Reid, Pak-Wing S. Chum, Leonie K. Walsh
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Patent number: 6423760Abstract: The present invention provides a fully vulcanized powdery rubber having a particle size of from 20 to 2000 nm, its preparation and use. The vulcanized powdery rubber is obtained by irradiating a rubber latex having a particle size of from 20 to 2000 nm with a high-energy irradiation. The vulcanized powdery rubber is very easily to be dispersed into various plastics, and thus can be mixed with various plastics to prepare toughened plastics and fully valcanized thermoplastic elastomers.Type: GrantFiled: October 30, 2000Date of Patent: July 23, 2002Assignees: China Petro-Chemical Corporation, Beijing Research Institute of Chemical Industry, SinopecInventors: Jinliang Qiao, Genshuan Wei, Xiaohong Zhang, Shijun Zhang, Jianming Gao, Wei Zhang, Yiqun Liu, Jiuqiang Li, Fengru Zhang, Renli Zhai, Jingbo Shao, Kunkai Yan, Hua Yin
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Patent number: 6407147Abstract: Disclosed herein is a game ball and method for making the same. The game ball has an unneutralized terpolymer resin cover that has been irradiated. The unneutralized terpolymer resin includes ethylene, acrylic or methacrylic acid, and a third component selected from the group of lower alkyl acrylates and lower alkyl methacrylates. The irradiated unneutralized terpolymer resin cover is superior in at least one of cut resistance and scuff resistance to a cover substantially identical in composition but which has not been irradiated. The game ball cover of the invention is particularly useful for improving the durability of golf balls to be struck with sharp-grooved clubs.Type: GrantFiled: August 7, 2000Date of Patent: June 18, 2002Assignee: Spalding Sports Worldwide, Inc.Inventors: Thomas J. Kennedy, III, Mark L. Binette, Michael John Tzivanis, Michael J. Sullivan
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Patent number: 6399671Abstract: This invention relates to rubber polymers based on polymerizable monomers and having an elevated gel content together with an elevated degree of swelling, to the production of the stated rubber polymers and to the use thereof for the production of moldings of all kinds.Type: GrantFiled: July 22, 1999Date of Patent: June 4, 2002Assignee: Bayer AktiengesellschaftInventors: Martin Hoch, Hermann Meisenheimer, Lothar Sesterhenn
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Patent number: 6384102Abstract: Radiation-curable powder compositions, usable as paint or varnish, which comprise a mixture of at least one semi-crystalline polyester containing end methacryloyl groups and of at least one acrylic copolymer containing ethylenically unsaturated groups, these polyesters comprising the reaction products of a glycidyl methacrylate and of a semi-crystalline polyester containing end carboxyl groups.Type: GrantFiled: April 21, 2000Date of Patent: May 7, 2002Assignee: UCB S.A.Inventors: Luc Moens, Jean-Marie Loutz, Daniel Maetens, Patrick Loosen, Marc Van Kerckhove
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Publication number: 20020037944Abstract: The present invention discloses methods for enhancing the wear-resistance of polymers, the resulting polymers, and in vivo implants made from such polymers. One aspect of this invention presents a method whereby a polymer is irradiated, preferably with gamma radiation, then thermally treated, such as by remelting of annealing. The resulting polymeric composition preferably has its most oxidized surface layer removed. Another aspect of the invention presents a general method for optimizing the wear resistance and desirable physical and/or chemical properties of a polymer by crosslinking and thermally treating it. The resulting polymeric compositions is wear-resistant and may be fabricated into an in vivo implant.Type: ApplicationFiled: February 26, 2001Publication date: March 28, 2002Applicant: The Orthopaedic HospitalInventors: Fu-Wen Shen, Harry A. McKellop, Ronald Salovey
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Patent number: 6359027Abstract: A coated abrasive article comprises a backing, a first binder on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable preferably, melt-processable resin containing an epoxy resin, an ethylene-vinyl acetate copolymer, and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The above binder precursors of the invention are preferably free of homopolymers and copolymers of olefinic monomers. In another aspect, the invention also describes an energy curable first binder precursor containing an epoxy resin, an ethylene-vinyl acetate copolymer, a polyfunctional acrylate component and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The invention also relates to a method of producing such coated abrasive articles and a surface-treated backing material.Type: GrantFiled: May 3, 2000Date of Patent: March 19, 2002Assignee: 3M Innovative Properties CompanyInventors: Gregg D. Dahlke, Robert J. DeVoe, Clayton A. George, Naimul Karim
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Patent number: 6350793Abstract: Disclosed herein is a game ball and method for making the same. The game ball has an ionomeric cover which includes a combination of ionomeric crosslinks and covalent crosslinks. The game ball cover is superior in at least one of cut resistance and scuff resistance to a conventional cover that does not have covalent crosslinks but is otherwise substantially identical in composition. The game ball cover of the invention is particularly useful for improving the durability of golf balls to be struck with sharp-grooved clubs.Type: GrantFiled: January 22, 2000Date of Patent: February 26, 2002Assignee: Spalding Sports Worldwide, Inc.Inventors: Thomas J. Kennedy, III, Mark L. Binette, R. Dennis Nesbitt, Michael J. Sullivan
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Publication number: 20020016431Abstract: Disclosed is a negative photoresist which is suitable for use in photolithography using light of 220 nm or shorter like the light from the ArF excimer laser as exposure light, avoids pattern deformation originated from swelling and has a high adhesion strength to the substrate (a micro pattern is hard to be separated from the substrate) in addition to a dry etching resistance and high resolution.Type: ApplicationFiled: July 18, 2001Publication date: February 7, 2002Applicant: NEC CorporationInventors: Shigeyuki Iwasa, Katsumi Maeda, Etsuo Hasegawa
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Publication number: 20020008333Abstract: Compositions for use in the manufacture of 3-D objects including compositions for use as a support and/or release material in the manufacture of said 3-D objects are provided. The compositions for use in the manufacture of 3-D objects comprise at least one reactive component, at least one photo-initiator, at least one surface-active agent and at least one stabilizer. The compositions for use as a support and/or release material comprise at least one non-reactive and low-toxicity compound, at least one surface-active agent, at least one stablizer and optionally at least one reactive component and at least one photo-initiator. Methods for manufacturing a 3-D object using the compositions of the present invention are also provided.Type: ApplicationFiled: March 12, 2001Publication date: January 24, 2002Inventors: Eduardo Napadensky, Zvi Lifshitz
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Publication number: 20010047061Abstract: An ultraviolet crosslinking pressure-sensitive adhesive composition showing good pressure-sensitive adhesive characteristics is obtained by using a block copolymer of styrenic polymer component and acrylic polymer component. The pressure-sensitive adhesive composition is produced by conducting living radical polymerization of styrenic monomer and acrylic monomer in a proper order in the presence of a transition metal and its ligand using a polymerization initiator to obtain a block copolymer (a) wherein at least one styrenic polymer block A and at least one acrylic polymer block B are bound to each other and mixing it with a trichloromethyl group-containing triazine derivative (b) or, alternatively, to obtain a block copolymer (a) which contains carboxyl precursor groups in the acrylic polymer block B, and converting the precursor groups to carboxyl groups, before or after mixing with the component (b), by heat-treating in the presence of an acid catalyst.Type: ApplicationFiled: February 28, 2001Publication date: November 29, 2001Inventors: Tomoko Doi, Michiharu Yamamoto, Yutaka Moroishi, Yoshihide Kawaguchi, Fumiko Nakano
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Publication number: 20010044481Abstract: This invention relates to a novel class of halofluorinated acrylates and more particularly to chlorofluorinated or bromofluorinated acrylates characterized by a chlorofluorinated or bromofluorinated alkylene moiety with acrylate functions at both terminals. These chlorofluorinated acrylates may be photocured in the presence of a photoinitiator into transparent polymers useful as optical waveguiding materials.Type: ApplicationFiled: June 13, 2001Publication date: November 22, 2001Inventors: Chengjiu Wu, Baopei Xu, Jianhui Shan, James T. Yardley
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Patent number: 6316519Abstract: Synthesis of linear acrylic polymers and copolymers having controlled molecular weight by the photoinitiated free radical polymerization of vinyl monomers in the presence of chain transfer agents to produce polymers useful in coating compositions and the like, including printing inks.Type: GrantFiled: August 19, 1999Date of Patent: November 13, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles Thomas Berge, Vincent Desobry
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Patent number: 6309747Abstract: A liquid curable resin composition for optical fibers comprising a polymer (a) having a number average molecular weight of 5,000 or more and containing at least two types of recurring ethylenic units, of which one type has a substituent group containing an ethylenically unsaturated group and the second type is substituted by a group —COOR3 (wherein R3 is a hydrogen atom or a hydrocarbon group having 1-30 carbon atoms), an aryl group, a cyano group, an alkyl group having 1-10 carbon atoms or by one or more halogen atoms.Type: GrantFiled: September 8, 1998Date of Patent: October 30, 2001Assignees: DSM N.V., Japan Synthetic Rubber Co., LTDInventors: Mitsuhito Suwa, Zen Komiya, Yuji Takasugi, Takashi Ukachi
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Patent number: 6309795Abstract: The invention provides a resist composition which comprises a polymer (a) having structural units with an acid-labile group, and a radiation-sensitive compound (b) which forms an acid upon exposure to activated radiation, wherein the polymer (a) is a polymer obtained by polymerizing 10 to 100 wt. % of a (meth)acrylic ester (i) having, as an alcohol residue, an allyl group with at least two substituent groups and 0 to 90 wt. % of a monomer (ii) copolymerizable with the (meth)acrylic ester, and has excellent sensitivity, resolution and heat resistance, and a pattern forming process making use of the resist composition.Type: GrantFiled: June 9, 1998Date of Patent: October 30, 2001Assignee: Nippon Zeon Co., Ltd.Inventors: Nobunori Abe, Nobukazu Takahashi
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Publication number: 20010033988Abstract: Structured polyacrylates obtainable by crosslinking, induced by UV irradiation, of a polymer mixture comprising the following components:Type: ApplicationFiled: January 29, 2001Publication date: October 25, 2001Inventors: Marc Husemann, Stephan Zollner