Polycarboxylic Acid Ester Resin Patents (Class 156/332)
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Patent number: 6489391Abstract: The invention provides a method of producing aqueous, protective colloid stabilized vinyl ester homo- and co-polymer dispersions with a defined solids content by emulsion polymerization in the presence of a protective colloid. The method specifies that a dispersion with a solids content lower than the defined solids content is produced and then thickened to the defined solids content after the polymerization has been completed. The dispersion is thickened by adding a polymer powder which is of the same polymer composition as the emulsion polymerizate and which can be redispersed in water.Type: GrantFiled: May 22, 2000Date of Patent: December 3, 2002Assignee: Wacker-Chemie GmbHInventors: Bernd Schilling, Georg Riepl
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Publication number: 20020174948Abstract: A moisture reactive hot melt adhesive composition formed by admixing components including a polyisocyanate, an amorphous polyol, 1.3 to 6%, by weight based on the weight of the adhesive composition, tri-C1-C6-alkyl citrate, and 0.1 to 10%, by weight based on the weight of the adhesive composition, of certain styrene/allyl alcohol copolymers, wherein the ratio of NCO/OH groups of the components on an equivalents basis is from 1.05 to 2.5, the components being free from crystalline polyesters and polyethers and the components containing less than 1%, by weight based on the total weight of the components, of water is provided. Also a method for forming the adhesive composition and a method for bonding two substrates using the adhesive are provided.Type: ApplicationFiled: April 8, 2002Publication date: November 28, 2002Inventor: Larry Frank Brinkman
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Patent number: 6485601Abstract: The present invention relates to an environmentally safe water based construction adhesive suitable for binding two (2) substrates together under conditions wherein moisture resistance is a requirement.Type: GrantFiled: September 21, 1998Date of Patent: November 26, 2002Assignee: BASF CorporationInventors: Luke S. Egan, Michael J. Drewery, Donald R. Cavalier
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Publication number: 20020168514Abstract: A method of detackifying an edge face of a roll of pressure sensitive adhesive tape, the method including coating an edge face of the roll of tape with a composition comprising acrylate oligomer, and polyetheracrylate oligomer, and curing the composition.Type: ApplicationFiled: March 14, 2001Publication date: November 14, 2002Inventor: Robin E. Wright
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Publication number: 20020164490Abstract: An acrylic resin film made from a composition having 95 to 50 wt. parts of an acrylic resin having a glass transition temperature of 60 to 110° C. and a weight average molecular weight of 70,000 to 600,000, and 5 to 50 wt. parts of a multilayer-structured acrylic polymer containing an elastomeric layer, and a multilayer film having the above acrylic resin film and other resin film. These films have better thickness accuracy, surface smoothness and surface hardness than conventional acrylic resin films, with excellent properties as films for use in simultaneous injection molding and lamination, agricultural films, display films, masking films, paint-substitute films, and the like.Type: ApplicationFiled: May 7, 2002Publication date: November 7, 2002Applicant: Sumitomo Chemical Co., Ltd.Inventors: Yoshio Tadokoro, Kiyoshi Mutou, Kouji Koyama
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Publication number: 20020157781Abstract: Method for gluing plastic labels (15) formed of a film (12) of BI-oriented polypropylene covered on each from a layer of acrylic material (13, 14), to hydrorepellent containers by using application apparatus for water based glue paper labels; one of layers (13, 14) is printed by means of inks (16) for non absorbing materials, covered by a layer of overprinting paint (17).Type: ApplicationFiled: October 3, 2001Publication date: October 31, 2002Inventor: Luciano Croci
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Publication number: 20020150775Abstract: Disclosed are a degradable laminated body which comprises a biodegradable resin layer and a metallic thin layer, which is high in strength, excellent in degradability, high in a property for shielding from the sunlight, temperature, and moisture, not apt to charge static electricity, being readily printed, and a method for the preparation thereof.Type: ApplicationFiled: September 10, 1999Publication date: October 17, 2002Inventors: MASAHIRO ISHIKAWA, MASAYA NAKAMURA
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Publication number: 20020134502Abstract: The invention provides a process for laminating textile sheet materials onto moldable foam or onto foamed moldings, using, as an adhesive, a polymer preparation based on copolymers of one or more monomers selected from the group comprising vinyl esters, acrylates, methacrylates, vinylaromatics and vinyl chloride and from 0.01 to 25% by weight, based on the total weight of the copolymer, of one or more ethylenically unsaturated monomers containing carboxyl groups.Type: ApplicationFiled: May 23, 2002Publication date: September 26, 2002Applicant: Wacker Polymer System GmbH & Co. KGInventors: Klaus Kolhammer, Claudia Schmidt, Abdulmajid Hashemzadeh, Doris Bauer
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Patent number: 6451141Abstract: The invention relates to a method of producing seals and coatings, and of bonding tiles and floor coverings, in which aqueous dispersions containing at least 20% by weight of filler and comprising a polymer mixture of a) an acrylate polymer A having a K value of from 5 to 55 and a glass transition temperature of below −10° C. and b) an acrylate copolymer having a glass transition temperature of from −50 to +50° C., are applied as sealants, coating materials or single-side adhesives. The compositions which are used, based on the filler-containing dispersions of the polymer mixture, are notable in processing for improved fixing in the wet and dry state, high heat stability, good adhesion to rubber and, since they are essentially free from organic solvents, plasticizers and resins, by a high level of environment-friendliness.Type: GrantFiled: March 9, 1998Date of Patent: September 17, 2002Assignee: BASF AktiengesellschaftInventors: Joachim Krobb, Peter Fickeisen, Bernd Däumer, Jürgen Barwich, Eckehardt Wistuba
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Publication number: 20020117257Abstract: An application solution for use in bonding a pressure sensitive adhesive-coated film on a surface is reported. The application solution comprises water, a wetting agent, and sodium chloride. The application solution reduces or eliminates adhesive blushing that may occur when pressure sensitive adhesives come into contact with water or water-based application solutions. Also disclosed is a concentrate for preparing an application solution and an improved method of applying a pressure sensitive adhesive-coated film to a substrate.Type: ApplicationFiled: December 18, 2000Publication date: August 29, 2002Applicant: 3M Innovative Properties CompanyInventor: Verna M. Kubik
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Patent number: 6440259Abstract: The invention provides contact adhesives comprising an adhesive component comprising polychloroprene rubber, and an internal coagulant. The contact adhesives may also contain a resinous component selected from the group consisting of ethylene-vinyl acetate copolymer, polyvinyl acetate homopolymer, polyvinyl acetate copolymer, acrylic copolymer, polyvinyl acetate acrylic copolymer, and combinations thereof. The internal coagulant may be hygroscopic salt, amino acid, or a combination thereof.Type: GrantFiled: August 4, 1999Date of Patent: August 27, 2002Assignee: 3M Innovative Properties CompanyInventor: Vijay Patel
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Patent number: 6440255Abstract: A process is provided for producing fast curing bonded with phenolic resin, which comprises pulverulent phenolic resins mixed with or applied to the substrate to be adhered together with pulverulent addition polymers selected from the group consisting of polyvinyl alcohols and addition polymers, stabilized by hydroxyl-containing protective colloids of at least one monomer selected from the group consisting of the vinyl esters of branched or unbranched carboxylic acids of 1 to 12 carbon atoms, the esters of acrylic acid and methacrylic acid with branched or unbranched alcohols of 1 to 12 carbon atoms, vinylaromatics, vinyl halides, olefins and dienes, and subsequently, by the employment of elevated temperature and optionally elevated pressure, cured and processed into a shaped article.Type: GrantFiled: November 23, 1999Date of Patent: August 27, 2002Assignee: Wacker-Chemie GmbHInventors: Klaus Kohlhammer, Claudia Schmidt
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Publication number: 20020100546Abstract: The invention provides a process for laminating textile sheet materials onto moldable foam or onto foamed moldings, using, as an adhesive, a polymer preparation based on copolymers of one or more monomers selected from the group comprising vinyl esters, acrylates, methacrylates, vinylaromatics and vinyl chloride and from 0.01 to 25% by weight, based on the total weight of the copolymer, of one or more ethylenically unsaturated monomers containing carboxyl groups.Type: ApplicationFiled: February 26, 2002Publication date: August 1, 2002Applicant: Wacker Polymer Systems GmbH & Co. KGInventors: Klaus Kolhammer, Claudia Schmidt, Abdulmajid Hashemzadeh, Doris Bauer
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Publication number: 20020100551Abstract: A method for producing an inkjet printhead element comprises providing a thinfilm die and a barrier layer thereon, wherein the barrier layer comprises a thermoplastic component and a thermoset component. The barrier layer is heated such that the barrier layer becomes tacky. The orifice plate is aligned to the barrier layer and is brought into contact with the barrier layer. Here, the orifice plate is held in place on the barrier layer by the tackiness of the barrier layer. Finally, the assembly of the thin film die, the barrier layer and the orifice plate is subjected to a stake and bake process to attach the orifice plate permanently to the barrier layer and, hence, to the thin film die.Type: ApplicationFiled: January 31, 2001Publication date: August 1, 2002Inventors: Kok Leong Lim, Seng Thye Raymond Go
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Publication number: 20020066519Abstract: A suspension adhesive comprised of a matrix material and a particulate filler material is useful for bonding, sealing, repairing, and modifying ceramic, glass, and powdered metal components. A method for making the suspension adhesive includes the selection of a filler material and a volume percentage of the filler material. Additionally, a matrix material is selected and the filler material is dispersed throughout the matrix material. The suspension adhesive is used to bond and seal components to form, for example, an arc tube for a light source.Type: ApplicationFiled: December 1, 2000Publication date: June 6, 2002Applicant: GENERAL ELECTRIC COMPANYInventors: Daniel Polis, Vishal Gauri
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Publication number: 20020064613Abstract: A heat-sensitive adhesive material including a substrate and a heat-sensitive adhesive layer provided thereon.Type: ApplicationFiled: September 25, 2001Publication date: May 30, 2002Applicant: Ricoh Company, Ltd.Inventors: Tomoyuki Kugo, Toshiaki Ikeda
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Publication number: 20020056518Abstract: A method for forming an isocyanate-functional moisture reactive hot melt adhesive by first forming a hydroxyl-functional prepolymer from a polyol selected from the group including polyester polyols, polyether polyols, and mixtures thereof and a polyisocyanate and subsequently forming the moisture reactive hot melt adhesive from the hydroxyl-functional prepolymer, a polyol selected from the group including polyester polyols, polyether polyols, and a polyisocyanate is provided. An isocyanate-functional moisture reactive hot melt adhesive formed by the method of the present invention and a method for bonding substrates are also provided.Type: ApplicationFiled: August 9, 2001Publication date: May 16, 2002Inventor: Pankaj Vinubhai Shah
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Patent number: 6372074Abstract: There is provided an adhesive article including (a) a radiation curable adhesive layer comprising an acrylic pressure sensitive adhesive and, optionally, an acrylated urethane polymer; and (b) a transparent carrier layer. The adhesive article may contain a radiation curable epoxy layer between the radiation curable adhesive layer and the transparent carrier layer. This adhesive article is particularly useful in preparing protective coatings on color filters for use in a liquid-crystal display panel structure. The radiation curable epoxy layer and radiation curable pressure sensitive adhesive are applied to the color filter and then exposed to UV radiation. The UV radiation exposure transforms the pressure sensitive adhesive from a removable adhesive to a permanent adhesive. The color filter with the UV cured adhesive layer is then baked to fully cure the adhesive layer and to transform the adhesive further into a near structural adhesive.Type: GrantFiled: June 14, 2000Date of Patent: April 16, 2002Assignee: Avery Dennison CorporationInventors: Daniel L. Holguin, Eng-Pi Chang
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Patent number: 6365680Abstract: A hot melt adhesive composition can be made using a polyester derived from 2-hydroxy-propanoic acid (lactic acid). A biodegradable/compostable thermoplastic resin can be formulated into a hot melt adhesive using a lower molecular weight material as a tackifying resin. The adhesive material can be made pressure sensitive and can be made entirely biodegradable by combining the polyester polymer with other biodegradable/compostable ingredients. The biodegradable/compostable adhesive material can be used as a substitute for non-biodegradable materials made from commercial polymers that resist attack by bacteria, fungi and other microbial populations. The resulting adhesive composition can be used in a variety of applications such as packaging and for the manufacture of disposable articles which are made from degradable materials. The entire disposable article can be made from adhesives and structural materials that are fully biodegradable/compostable.Type: GrantFiled: July 6, 1995Date of Patent: April 2, 2002Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: Garry J. Edgington, Christopher M. Ryan
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Patent number: 6352784Abstract: A wood decorative material coated with resin composite film, comprising a laminate of, arranged in the following order, a wood substrate; a heat bonding layer (A) formed from a heat bonding resin composition comprising 100 parts by weight of a thermoplastic resin (a-1) and 0.001 to 80 parts by weight of a tackifier resin (a-2), the above heat bonding resin composition having a melting point or softening temperature of 170° C. or below and exhibiting a melt flow rate (MFR) at 190° C. of 1 to 500 g/10 min; and a mar-proof surface layer (B). Not only can beautiful appearance be obtained while retaining natural texture without the application of lacquer but also surface protection and bending working properties are improved.Type: GrantFiled: June 29, 1998Date of Patent: March 5, 2002Assignee: Tohcello Co. Ltd.Inventor: Mikio Katagiri
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Patent number: 6342122Abstract: An solvent-based pressure sensitive adhesive (PSA) having improved shear adhesion is composed of an acrylic-based PSA resin, an ethylenically unsaturated polyester, an ultraviolet radiation (UV) photosensitizer, and fugative organic solvent for the acrylic-based PSA resin. The PSA is cured by evaporation of the fugative organic solvent coupled with heat and UV irradiation or UV irradiation alone. Such PSA has improved shear adhesion by dint of the addition of the ethylenically-unsaturated polyester and an ultraviolet radiation (UV) photosensitizer. A method for adhering two substrates using the PSA includes applying the PSA to one or both of substrates. The solvent in the PSA is evaporated from the applied PSA. Finally, the polyester component of the applied PSA is cured by exposure of the applied PSA to ultraviolet (UV) radiation.Type: GrantFiled: August 7, 2000Date of Patent: January 29, 2002Assignee: Ashland Chemical, Inc.Inventors: Daniel Joseph Riley, Raymond Scott Harvey, Harvey Joseph Richards, Peter Albert Yurcick
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Publication number: 20010051701Abstract: An adhesive composition that includes a free radical-polymerizable monomer component that includes a reaction product of a (hydroxy)acrylate with an anhydride and is substantially free of at least methyl methacrylate or methacrylic acid. The adhesive composition exhibits substantially reduced objectionable odor.Type: ApplicationFiled: June 10, 1999Publication date: December 13, 2001Inventor: IAN C. QUARMBY
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Patent number: 6322658Abstract: A method for making a unitary composite headliner adapted to be installed in a motor vehicle includes providing an inner layer and two reinforcing layers, each of which comprises polymeric material, the inner layer being configured to absorb sound and vibrations, and the reinforcing layers being configured to provide sufficient flexibility to the headliner to facilitate installation in the vehicle, while also providing sufficient rigidity to the headliner to enable the headliner to be self-supporting once installed in the vehicle; differentially heating the layers such that each reinforcing layer is heated to a respective predetermined reinforcing layer temperature, and the inner layer is heated to a predetermined inner layer temperature less than either respective reinforcing layer temperature; inserting the layers into a mold such that the inner layer is disposed between the reinforcing layers; and compressing the layers together to bond the layers and form the headliner.Type: GrantFiled: February 23, 1998Date of Patent: November 27, 2001Assignee: Lear CorporationInventors: George B. Byma, John J. Gabrysiak
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Patent number: 6319352Abstract: Boric acid is mixed, preferably at 0.1 to 10 w. % in relation to the solid content, into a sprayable dispersion based on an acrylic acid ester copolymer and a colloidal chloroprene polymerisate. The spray is applied to at least one or both substrate surfaces, the substrate surfaces to be glued are laid against each other wet and pressed together with at least 0.1 N/cm2 for at least approximately 0.5 seconds. The sprayable dispersion is preferably used for gluing foams, after a short compression the initial adhesion is so high that further processing or transport can be begun immediately.Type: GrantFiled: November 13, 1995Date of Patent: November 20, 2001Assignee: Alfa Klebstoffe AGInventors: Emil Simmler, Thomas Simmler
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Publication number: 20010035265Abstract: The invention provides a method for fastening a polymeric label to a glass, plastic or metal container or surface by means of a water based adhesive composition by the following steps:Type: ApplicationFiled: June 6, 2001Publication date: November 1, 2001Inventor: Peter J. Dronzek
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Publication number: 20010030022Abstract: The adhesive material contains a radical-polymerizable compound, a curing agent, and a thermoplastic resin; gives a negative result of the Ames test; and has a PII, or skin irritation, value of 2 or less. In particular, all the starting ingredients should preferably give a negative result of the Ames test and have a PII, or skin irritation, value of 2 or less.Type: ApplicationFiled: March 7, 2001Publication date: October 18, 2001Applicant: SONY CHEMICALS CORP.Inventor: Tomoyuki Ishimatsu
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Patent number: 6303726Abstract: A polymer which contains from 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a), from 0.02 to 10% by weight of a vinylaromatic compound b), from 0 to 10% by weight of an ethylenically unsaturated acid or of an ethylenically unsaturated acid anhydride c), and from 0 to 40% by weight of further monomers d), the percentages by weight being based on the polymer and the polymer being obtainable by polymerizing the monomers a) to d) in at least two stages which differ in their content of vinylaromatic compounds in such a way that the content of vinylaromatic compounds in the vinylaromatics-rich stage is at least 5 times as great as in the low-vinylaromatics stage.Type: GrantFiled: February 9, 1999Date of Patent: October 16, 2001Assignee: BASF AktiengesellschaftInventors: Bernhard Schuler, Gerhard Auchter, Johannes Türk, Rik Noordijk, Johannes Dobbelaar, Reinhard Bächer, Wolfgang Hümmer
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Patent number: 6299905Abstract: Improved matrices for tissue repair comprising a biocompatible, bioerodable polymer which has a water solubility of about 0.01 to about 500 mg/mL at about 25° C. and adhesive strength of about 600 to about 150,000 Pa; and pressure sensitive adhesives for tissue repair which have adhesive strength of about 600 to about 150,000 Pa. The matrix or adhesive can further comprise a filler or a bioactive agent, or both. The matrices and adhesives are tissue-adherent and dough-like so they can be molded to fit a repair site. When used for bone/implant fixation, or as a filler for bone or cartilage repair, gradual short-term bioerosion of the adhesive matrix allows it to be replaced with developing bone or cartilage tissue. When used for release of a bioactive agent, the agent can be mixed into the adhesive matrix well before the implantation procedure. After implantation, the bioactive agent is gradually released as the adhesive matrix biodegrades.Type: GrantFiled: April 16, 1996Date of Patent: October 9, 2001Assignee: DePuy Orthopaedics, Inc.Inventors: Dale R. Peterson, Z. David Deng, Todd P. Glancy
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Patent number: 6280557Abstract: A vinyl graphic marking film or label coated with a pressure sensitive acrylic adhesive designed to achieve high or permanent adhesion to polymeric low energy surfaces is disclosed. In addition to good adhesion to low energy surfaces, the graphic marking film or label may have microperforated or micro-rough edges which initiate tearing when removal is attempted. The article maintains flexibility and film strength for easy fabrication in graphic marking film or label manufacture.Type: GrantFiled: February 12, 1999Date of Patent: August 28, 2001Assignee: 3M Innovative Properties CompanyInventors: Richard L. Peloquin, Albert I. Everaerts, Kenneth D. Wilson, Stephen J. Galick
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Patent number: 6268465Abstract: An aliphatic polyester amide which is hydrolysis-resistant includes a ternary polycondensation product of monomeric constituents composed of a monomeric constituent A which is at least one diol having a general formula: HO—R1—OH, where R1 is an aliphatic residue having 2-16 carbon atoms; a monomeric constituent B which is at least one dicarboxylic acid having a general formula: HOOC—R2—COOH, where R2 is an aliphatic residue having 1-14 carbon atoms; and a monomeric constituent C which is at least one diamine having a general formula: H2N—R3—NH2, where R3 is an aliphatic residue having 2-16 carbon atoms and is present in an amount of up to about 5% by weight based on total weight of the monomeric constituents, wherein polycondensation proceeds in the presence of a catalyst comprised of constituent D, which is a metal-containing catalyst, in combination with constituent E, which is at least one of an organic phosphorus compound and an inorganic phosphorus compound, and whereiType: GrantFiled: April 12, 1999Date of Patent: July 31, 2001Assignee: BK Giulini Chemie GmbH Co OHGInventors: Gudrun Chomiakow, Hasan Ulubay, Emil Wilding
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Patent number: 6242510Abstract: A pressure sensitive adhesive composition comprised of a substantially tacky polymer containing a number of prismatic or holographic platelets. When the composition is applied to a substrate, the platelets align themselves in a planar fashion parallel to the broad face of the surface on which the coating is applied. The resulting composition layer is transparent except for the platelets that refract and reflect the light striking the platelets back towards an observer. The color of the reflected light changes as the angle at which the platelets are viewed is changed. In this manner, the platelets in the coating provide an overall aesthetically pleasing appearance for the coated material that adds distinctiveness to decorative labeling, as well as to the objects on which the labeling is placed and other suitable types of laminations in which the adhesive coating may be used.Type: GrantFiled: March 31, 2000Date of Patent: June 5, 2001Assignee: Green Bay Packaging, Inc.Inventor: Edward J. Killey
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Patent number: 6242504Abstract: A description is given of a method of crosslinking radiation-crosslinkable pressure-sensitive adhesive films by controlled-dose exposure to actinic radiation, which involves exposing the film surface to a regular or irregular radiation pattern made up of regions of different intensity. The method permits a more precise adjustment of the adhesion—in particular, the adhesion of flexible films on a substrate.Type: GrantFiled: September 21, 1998Date of Patent: June 5, 2001Assignee: BASF AktiengesellschaftInventors: Bernd Meyer-Roscher, Wolfgang Schrof, Dieter Urban, Paul Ludwig Geiss, Walter Brockmann
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Patent number: 6238787Abstract: A method of attaching to a rubber molded part a strip having an acrylic polymer adhesive on one side, including the step of applying radio frequency energy to the rubber molded part to generate heat therein and to cause the acrylic polymer adhesive to melt bond to the rubber molded part. The acrylic polymer is an acrylic-silane interpolymer of primarily acrylic ester monomer interacted with an organosilane, which interpolymer has a Tg of −10° to 80° C. The rubber molded part includes radio frequency sensitive material to facilitate bonding to the acrylic polymer adhesive during application of the radio frequency energy thereto. Desirably, the strip also includes a pressure sensitive adhesive on its other side for securing the rubber part to a component of an automobile or other vehicle by applying pressure to the rubber part. The strip may include an acrylic foam core between the acrylic polymer adhesive and the pressure sensitive adhesive.Type: GrantFiled: October 1, 1997Date of Patent: May 29, 2001Assignee: Park-Ohio IndustriesInventors: Sanford F. Giles, Alex T. Koshy, Edward John Busch
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Patent number: 6238788Abstract: A multilayer packaging film comprising: a) a copolyester heat seal layer comprising a base polymer, wherein: i) 10-60 mole % of the base polymer is derived from a terephthalic acid monomer, ii) 10-60 mole % of the base polymer is derived from an ethylene glycol monomer, and iii) 5-60 mole % of the base polymer is derived from a member of the group consisting of: A) a diacid other than terephthalic acid; B) a diol other than ethylene glycol; and C) a mixture of A) and B); b) an interface layer comprising an acrylic polymer; c) a support layer; wherein the multilayer film has a peel strength of less than 200 grams per linear inch when the heat seal layer is sealed to itself at heat sealing temperatures of above 100° C. to about 200° C.Type: GrantFiled: March 26, 1996Date of Patent: May 29, 2001Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard W. Bradt
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Patent number: 6221191Abstract: Polyester-containing multilayer biaxially-oriented polypropylene films are provided. According to the invention, a two- or three-layer polyester-containing cap layer is bonded to a monoaxially oriented polypropylene core, followed by orientation of the resulting composite in a direction transverse to the direction of orientation of the core layer. At least one tie layer is interposed between the core and the polyester. Advantageously, the polyester contains silicone fluid as a processing aid.Type: GrantFiled: February 7, 1997Date of Patent: April 24, 2001Assignee: QPF, L.L.C.Inventors: Alan M. Davis, John H. Lawrence, Tung-Yao Weng
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Patent number: 6156434Abstract: A surface-treated PFA film, wherein hydroxyl groups and carbonyl groups are present on the surface of the surface-treated PFA film. Further, the surface state of the surface-treated surface is a surface state having no irregularities, and preferably the average surface roughness is at most 10 nm. The surface treatment is carried out by RF or DC bombardment method, preferably in an Ar gas atmosphere.Type: GrantFiled: March 12, 1998Date of Patent: December 5, 2000Assignee: Asahi Glass Company Ltd.Inventors: Atsushi Hayashi, Hiroshi Aruga, Yasuo Hayashi, Kazuo Harada, Makoto Fukawa
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Patent number: 6153289Abstract: A laminate comprises:a first layer of thickness between 75 .mu.m and 150 .mu.m of a polyester material not being absorbent of xerographic toner and having an image deposited on a first surface thereof by an electrostatic deposition process,a second layer of optically transparent or translucent plastics material,a first surface of the first layer being bonded to the second layer by a layer of optically transparent adhesive material, in a lamination process involving heat and pressure to ensure that the relief of the deposited image is apparent in the laminate through the second layer,the arrangement being such that the image on the first layer can be viewed through the second layer and the layer of optically transparent adhesive material.Type: GrantFiled: September 30, 1997Date of Patent: November 28, 2000Inventor: Nicholas J. Murray
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Patent number: 6123799Abstract: In order to provide a heat-conductive pressure-sensitive adhesive which is excellent in heat conductivity and adhesive property, in particular, shows a large adhesive force in a high temperature (heat resisting shear retention force), does not show an extreme viscosity increase during or after the preparation thereof, and is excellent in the stability, the present invention provides a heat-conductive pressure-sensitive adhesive comprising a) 100 parts by weight of a copolymer of a monomer mixture comprising from 70 to 99% by weight of a monomer made up of a (meth) acrylic acid alkyl ester having an alkyl group having from 2 to 14 carbon atoms on an average as the main constituent and from 30 to 1% by weight of a copolymerizable monomer having an acidic or basic polar group in the molecule and b) from 10 to 300 parts by weight of a heat-conductive filler having the same polarity as the polar group of the above-described copolymerizable monomer and having a purity of at least 95% by weight, an adhesive sheet coType: GrantFiled: June 3, 1999Date of Patent: September 26, 2000Assignee: Nitto Denko CorporationInventors: Masahiro Ohura, Shigeki Muta, Takao Yoshikawa
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Patent number: 6114423Abstract: A dispersion powder of water-insoluble copolymers of ethylenically unsaturated monomers and optionally, further additives, which are redispersible in water and obtained by:a) emulsion polymerizing, at a pH of 2 to 9, a comonomer mixture of at least one comonomer selected from vinyl esters of unbranched or branched alkylcarboxylic acids having 1 to 18 carbon atoms, methacrylic acid esters of unbranched or branched alcohols having 1 to 18 carbon atoms, acrylic acid esters of unbranched or branched alcohols having 1 to 18 carbon atoms, olefins, dienes, vinylaromatics and vinyl halides, and 0.05 to 15.0% by weight, based on the total weight of the comonomer mixture, of at least one silicon compound of the formulaCH.sub.2 .dbd.CH--(CH.sub.2).sub.m --SiR(OR').sub.2,where m=0-8CH.sub.2 .dbd.CR"--CO.sub.2 --(CH.sub.2).sub.n SiR(OR').sub.2where n=1-6 ##STR1## b) spray drying aqueous dispersion, at a pH of 4 to 8 at a discharge temperature of 55 to 100.degree. C., before or after addition of any additives.Type: GrantFiled: January 20, 1998Date of Patent: September 5, 2000Assignee: Wacker-Chemie GmbHInventors: Herbert Eck, Peter John, Hermann Lutz
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Patent number: 6099773Abstract: A method for forming shaped products by mixing a formaldehyde-free aqueous binder comprising A) a free-radically polymerized polymer containing from 5 to 100% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl group can form an anhydride group, and B) an alkanolamine having at least two hydroxyl groups, with fibers or chips to form a shaped article, wherein said binder has a property of drying at 50.degree. C. in 72 hours to a film from 0.3 to 1 mm in thickness and, following a subsequent 15 minute cure at 130.degree. C. in air, has a gel content of above 50% by weight, wherein the binder includes less than 0.1% by weight, based on A)+B), of a phosphorus-containing reaction accelerant with fibers or chips.Type: GrantFiled: August 21, 1998Date of Patent: August 8, 2000Assignee: BASF AktiengesellschaftInventors: Bernd Reck, Eckehardt Wistuba, Wilhelm Friedrich Beckerle, Axel Kistenmacher, Robert Rupaner, Rainer Hummerich
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Patent number: 6099679Abstract: Methods for gluing a pair of surfaces are disclosed including preparing a glue from a polymer in the form of a powder, the glue having a melting temperature of up to about 100.degree. C. and being curable by electromagnetic radiation, applying the powder in a dry state to at least one of the two surfaces, heating a region proximate to at least one of the surfaces whereby the powder melts but does not cure, subjecting that surface to electromagnetic radiation to initiate curing of the powder, and joining the two surfaces together prior to completion of curing whereby the two surfaces adhere to each other by means of the tackiness of the glue and are maintained together by the subsequently cured glue. Apparatus for gluing the two surfaces together are also discussed, as are glue compositions for use therein.Type: GrantFiled: December 15, 1998Date of Patent: August 8, 2000Assignee: DuPont Powder Coatings Scandinavia ABInventors: Jaan Karem, Helene Bolm
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Patent number: 6096842Abstract: Aerobically hardening adhesives based on polymers of acrylates or methacrylates having a relatively high boiling point such as polyurethane (meth)acrylates are described, wherein the adhesives contain at least one initiator capable of forming free radicals, at least one accelerator, and at least one siccative. Such adhesives are largely odorless and harden completely such that the adhesive surface at the boundary with air is not tacky.Type: GrantFiled: July 24, 1997Date of Patent: August 1, 2000Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Carsten Friese, Frank Bergmann
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Patent number: 6086994Abstract: Heat-conductive and pressure-sensitive adhesive sheets which are excellent in heat resistance, scarcely undergo anchoring fracture between the base material and the adhesive layer and, therefore, are usable in fixing electronic parts to heat-radiating members or fixing members in various fields including constructive materials, vehicles, aircrafts and ships. the heat-conductive and pressure-sensitive adhesive sheets are in the form of sheets, tapes, etc. wherein a layer of a heat-conductive and pressure-sensitive adhesive composition, which contains an alkyl (meth)acrylate polymer having hydrophilic groups, is formed on the high frequency sputter-etched surface(s) of a plastic film containing 2 to 50% by volume of a heat-conductive, electrical insulating filler.Type: GrantFiled: April 16, 1998Date of Patent: July 11, 2000Assignee: Nitto Denko CorporationInventors: Masahiro Oura, Kazuyuki Kitakura, Shigeki Muta, Takao Yoshikawa
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Patent number: 6034169Abstract: The present invention is directed to a novel adhesive which is a mixture ofA) at least one aqueous dispersion of a polymer which has a softening point below 70.degree. C., said dispersion containing 5 to 70% by weight solids and having a film-forming temperature below 70.degree. C., andB) at least one aqueous dispersion of a polymer based on olefinically unsaturated monomers having a softening point is above 70.degree. C., said dispersion containing 5 to 70% by weight solids,wherein the weight ratio of dispersion A) to dispersion B) is from 97:3 to 60:40, based on the solids content of said dispersions.Type: GrantFiled: September 2, 1992Date of Patent: March 7, 2000Assignee: Bayer AktiengesellschaftInventors: Reiner Witkowski, Otto Ganster, Heinrich Konigshofen, Ralph Ostarek
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Patent number: 6015524Abstract: Multilayer films that include a thermotropic liquid crystalline polymer film layer and a polyethylene film layer are bound together using one of the following hot melt adhesives: ethylene-glycidyl methacrylate copolymer, ethylene-methyl acrylate-glycidyl methacrylate terpolymer, ethylene vinyl acetate copolymer, a polyolefin blend, ethylene-acrylic acid copolymer, and mixtures thereof.Type: GrantFiled: October 20, 1997Date of Patent: January 18, 2000Assignee: Hoechst Celanese CorporationInventors: James E. Kuder, Dominick Cangiano, Vincent J. Provino, Wayne Xu
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Patent number: 5976652Abstract: The present invention relates to polypropylene film-adhesion promoter-metal laminates, adhesion promoter used being polypropylene modified with carboxyl groups and/or anhydride groups. Polypropylene random copolymers of 90 to 99% by weight, preferably 93 to 99% by weight, of propylene and 1 to 10% by weight, preferably 1 to 7% by weight, of comonomers, having a molecular weight distribution M.sub.w :M.sub.n in the range from 2 to 10, preferably 3 to 6, and a melt flow index MFI 230.degree. C./2.16 kg in the range of 1 to 20 g/10 min, preferably in the range from 4 to 15 g/10 min, are used for the production of the polypropylene film.Type: GrantFiled: August 22, 1997Date of Patent: November 2, 1999Assignee: PPG Industries, Inc.Inventors: Siegfried Krause, Leonidas Kiriazis
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Patent number: 5958170Abstract: The present invention relates to a method of engraving objects which circumvents the necessity of mechanically scrubbing the engraved surface to remove fillers. Specifically, in the method of the present invention, the fillers are applied directly to the resist stencil instead of being applied to the object to be engraved. Removal of the resist stencil simultaneously removes the filler from the engraved object.Type: GrantFiled: December 13, 1996Date of Patent: September 28, 1999Assignee: Design Services, Inc.Inventor: David Cetrangolo
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Patent number: 5955147Abstract: Reflective aluminum trim for use in automobiles, trucks, boats and a variety of household and industrial appliances is produced by forming aluminum strip into a desired shape, followed by selective application of a fluoropolymer protective coating to only a partial portion of the show surface of the shaped strip and the application of a thermoplastic to the portions of the show surface not covered by the protective coating. The resulting trim piece has a highly reflective aluminum show surface which has a high distinctness of reflected image. The thermoplastic is preferably co-extruded onto the shaped aluminum strip using an adhesive to bond the thermoplastic directly to an un-coated portion of the aluminum surface. Prior to application of the thermoplastic, a single heating step may be used to cure both the protective coating and the adhesive.Type: GrantFiled: February 26, 1996Date of Patent: September 21, 1999Assignee: Aluminum Company of AmericaInventor: Daniel L. Serafin
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Patent number: 5928460Abstract: Disclosed is an essentially odorless water dissipatable or dispersible adhesive composition that is useful in forming paper articles and other products that can be recycled through repulping in both neutral and alkaline media. The water dispersible adhesive composition is preferably a hot melt adhesive that is a low molecular weight, branched copolyester containing a sulfomonomer. The copolyester adhesive composition can be used neat or formulated and exhibits broad compatibility with a variety of adhesive additives, including non polar tackifiers.Type: GrantFiled: February 2, 1998Date of Patent: July 27, 1999Assignee: Eastman Chemical CompanyInventors: Richard Anthony Miller, Scott Ellery George
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Patent number: 5916392Abstract: A method for increasing resistance to damage of a building wall due to wind, water, fire and seismic events including the steps of covering the wall with a fiberglass mat wherein the mat and wall are coated with a prime coat followed by a finish coat laced with cement-sand mixture. Special methods of preparing the base surface of the wall depend on the nature of the wall, be it plywood, gypsum, stucco or concrete. The system is applicable to a vertical wall or floor. Special steps are taken to augment various selected properties of the wall such as increasing shear strength and abrasion resistance.Type: GrantFiled: April 10, 1998Date of Patent: June 29, 1999Inventor: Manouchehr M. Ghanbari