Of Cross-linked Polyester Patents (Class 428/482)
  • Patent number: 4927878
    Abstract: Novel heat-curable compositions are obtained by combining a bis(2-hydroxyethyl)dicyclopentadiene containing polyester and an unsaturated polyester. These compositions can be cross-linked by heating at temperatures above 135.degree. C., and do not require cross-linking agents or radical initiators. The compositions of the present invention are useful as coatings and adhesives having superior qualities.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: May 22, 1990
    Assignee: Eastman Kodak Company
    Inventors: Jerome L. Stavinoha, Anthony W. McCollum
  • Patent number: 4916023
    Abstract: A gel coating resin composition comprises (A) 10 to 45 parts by weight of an unsaturated polyester with an equivalent amount of unsaturated groups ranging from 140 to 330, (B) 15 to 60 parts by weight of a styrene monomer, and (C) 15 to 75 parts by weight of a polyfunctional (meth)acrylic monomer represented by the following general formula (I) and which has an equivalent amount of unsaturated groups ranging from 89 to 130: ##STR1## where at least four of the R's present are (meth)acryloxy groups, with the remainder being an organic group except (meth)acryloxy groups; and n is an integer of 1 to 5.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: April 10, 1990
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Yoshichika Kawabata, Shigeru Motomiya, Mitsunori Ikezoe
  • Patent number: 4914078
    Abstract: A receiver sheet for dye-diffusion thermal transfer printing, comprises a substrate which supports a receiver coat, the receiver coat comprising a dye-receptive material, such as an organic polymer, and a dye-permeable release agent which is a thermoset amino-modified-silicone organic-oligoepoxide resin. The thermoset combination of silicon and organic moieties in the release agent, gives good protection against adhesion between the dyesheet and receiver sheet when they are subjected to short high temperature pulses during printing, while also enabling sharp images of high optical density to be obtained. This balance of properties is best obtained by dispersing the release agent throughout the dye-receptive material, although they can also be applied to the substrate as separate layers.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: April 3, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Richard A. Hann, Nicholas C. Beck
  • Patent number: 4912103
    Abstract: A transparent, flexible, heat sealable, water vapor barrier laminate, for use in forming a protective package, which is formed from three layers secured to each other by separate layers of laminating adhesive. One outer layer is a protective material consisting of a polyester film; the center layer is a barrier material consisting of a fluid compression rolled, monoaxially molecuarly oriented, high density polyethylene film; and the other outer layer is another protective material consisting of an ionomer film.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: March 27, 1990
    Assignee: Jefferson Smurfit Corporation
    Inventors: William R. Sibbach, Roger P. Conant
  • Patent number: 4898787
    Abstract: A cold sealable emulsion polymerized terpolymer cohesive formulation which has low surface tack characteristics, prepared from the emulsion polymerization of a first monomer selected from the group consisting of ethyl acrylate, hexyl acrylate, isooctyl acrylate, butyl acrylate, methyl acrylate and vinylidene chloride, a second monomer selected from the group consisting of vinyl acetate, methyl methacrylate, styrene, ethyl methacrylate and isobutyl methacrylate and a third monomer selected from the group consisting of methacrylic acid, acrylic acid, itaconic acid, sulfoethyl methacrylate and malic acid with the proviso that each of said first, second and third monomers are different.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: February 6, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Taeik Min, Robert E. Touhsaent
  • Patent number: 4895926
    Abstract: Novel hydroxyethylnorbornene esters are disclosed which are prepared by reacting cyclopentadienylethanol with an acrylate ester. Novel polyesters are disclosed which are prepared by the self-polymerization of the hydroxyethylnorborane (HEN) esters. Novel polyesters are also obtained by reacting HEN compounds and a diol or other polyol in the presence of diacids or their esters or anhydrides. The polyesters of the present invention are useful as tackifying agents, adhesives, coatings, and for other purposes.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: January 23, 1990
    Assignee: Eastman Kodak Company
    Inventors: Jerome L. Stavinoha, Anthony W. McCollum
  • Patent number: 4888381
    Abstract: A crystalline polyester film or sheet coated with a priming composition consisting essentially of a carboxyl group-containing copolyester, wherein the carboxyl groups are introduced either by treatment of the terminal hydroxyl groups of the copolyester with a dicarboxylic acid anhydride or by pyrolysis of the copolyester. Such primer compositions form continuous wet films and dry coatings and provide surfaces receptive to a variety of surface finishes such as further polymer coatings and inks. Further, the primer-coated polyester can be recycled and can be used in applications where the coating is in contact with food articles.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: December 19, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard P. Pankratz
  • Patent number: 4880700
    Abstract: Oriented polyester film composites comprise, on at least one face surface of the polyester base, a primer coating adapted to enhance the adhesion of topcoats thereto, said adhesive primer coating comprising a modified copolymer produced by aqueous phase radical polymerization of at least one acrylic monomer in the presence of a water-soluble or water-dispersible copolyester containing a plurality of sulfonyloxy groups.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: November 14, 1989
    Assignee: Rhone-Poulenc Films
    Inventors: Dominique Charmot, Pierre Grosjean
  • Patent number: 4879177
    Abstract: A coextruded multiple layer film is oriented in primarily the longitudinal direction, and comprises a core layer comprising butadiene styrene copolymer or copolyester, outer layers comprising ethylene propylene copolymer, polypropylene, or blends thereof, and intermediate layers which bond the outer layers to the core layer and comprise an ethylene copolymer.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: November 7, 1989
    Assignee: W. R. Grace & Co.
    Inventor: Peter R. Boice
  • Patent number: 4876155
    Abstract: A polyester film which is provided with a permanent, antistatic coating on one surface, which coating is obtained by treating the biaxially stretch-oriented and heat-set film with an aqueous dispersion, containing at least one copolyester containing sulfonate groups, and at least one salt derived from an amino acid or a protein hydrolysate. The material can be used in the production of diazo duplicating films.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: October 24, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Thoese, Karl-Heinz Jung
  • Patent number: 4868051
    Abstract: Oriented composite polyester films, to which a wide variety of final application topcoatings are improvedly adherent, e.g., matte, photosensitive and magnetic topcoatings, comprise an oriented base film substrate (A) of a crystalline or semicrystalline polyester, the base film substrate (A) bearing an adhesion primer coating (B) on at least one of the face surfaces thereof, and the adhesion primer coating (B) comprising:(a) a crystalline, semicrystalline or crystallizable polyester;(b) a water-sensitive copolyster; and(c) an organic solvent-sensitive polyester or copolyester.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: September 19, 1989
    Assignee: Rhone-Poulenc Films
    Inventor: Pierre Grosjean
  • Patent number: 4863768
    Abstract: A heat shrinkable cylindrical laminated film having a polyvinylidene chloride type resin (I) as an oxygen gas barrier core layer, on the both surface side of which 1 or 2 resin layers are arranged respectively and consisting of 3-5 layers with total, characterized in that the cylindrical exterior surface resin layer on said layer (I) comprises a crosslinked polyolefin type resin layer (II) having a gel fraction [x] at the outermost layer of 25-70% by weight, a geld fraction [y] at the surface layer in the side of the layer (I) of 40% by weight or less and a gradient of gel fraction represented by [y/x] of 0.6 or less and the joint of said layers (I) and (II) comprises a laminate of a joint in a state denaturated by electron rays.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: September 5, 1989
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tadashi Ishio, Daisuke Matsumura
  • Patent number: 4853276
    Abstract: There is provided a novel marble-translucent thin resilient decorative sheet 1, which comprises thin permeable pulp paper 2, fine whitish inorganic filler powder, and a substantially transparent cured resin contained by impregnation throughout the pulp paper, said filler powder being uniformly deposited onto at least the top surface of the pulp paper and being firmly fixed thereto. The decorative sheet is produced by impregnating fine whitish inorganic filler-loaded permeable pulp paper with a liquid polymerizable resinous composition for forming a substantially transparent cured resin, placing the impregnated pulp paper between molding plates, and polymerizing the resinous composition into a cured resin; or by impregnating permeable non-loaded pulp paper containing no filler powder with the liquid resinous composition containing fine whitish inorganic filler powder and carrying out the polymerization between molding plates as described above.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: August 1, 1989
    Assignee: Inax Corporation
    Inventor: Toyokazu Kurushima
  • Patent number: 4844955
    Abstract: A multilayer polymeric composite structure of high impact strength and delamination resistance possesses a polymeric cosmetic layer chemically bonded to a cross-linked, isocyanate-modified thermosetting polyester or polyether substrate layer. In one embodiment of the structure, a relatively thin, predominantly acrylic resin layer is chemically bonded through urethane linkages to a relatively thick, reinforced, polyester foam substrate layer. A reinforced reaction injection molding (RPIM) procedure for manufacturing the polymeric composite is also disclosed.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: July 4, 1989
    Assignee: American Standard, Inc.
    Inventors: Peter U. Graefe, Karl T. Kuszaj
  • Patent number: 4844944
    Abstract: A light weight, durable plumbing fixture, e.g., a bathtub, sink, shower receptor, etc., is fabricated from a multilayer polymer composite structure of high impact strength and delamination resistance. The composite possesses a relatively thin polymeric cosmetic, or finish, layer, e.g., of acrylic resin, chemically bonded to a relatively thick, reinforced, cross-linked, isocyanate-modified thermosetting polyester or polyether dense foam resin substrate layer.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: July 4, 1989
    Assignee: American Standard, Inc.
    Inventors: Peter U. Graefe, Karl T. Kuszaj
  • Patent number: 4826880
    Abstract: The invention relates to absorbent compositions, to methods for handling and immobilizing particulate absorbents, and to absorbent articles produced from the absorbent compositions. Absorbent materials such as cross-linked, water-insoluble and water-swellable particulate polymers are immobilized and safely handled by adding thereto an aqueous liquid such as water or saline in amounts sufficient to form hydrates in which the water comprises from 20% to 80% by weight of the total hydrate. The hydrates may be extruded, sprinkled, or sprayed and can be incorporated into absorbent articles such as diapers and tampons by conventional means. The hydrates unexpectedly increase the total water absorbency of the absorbent on a dry basis.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: May 2, 1989
    Assignee: Johnson & Johnson, Inc.
    Inventors: John M. Lesniak, Franklin Boardman, Wayne G. Koci, James E. McCann
  • Patent number: 4824725
    Abstract: Disclosed is a drafting material comprising a transparent base material with a hydrophilic coating which readily accepts ink, ensures rapid drying of the ink and can be marked in a wipe-resistant manner. The hydrophilic coating of the drafting material includes sulfonate group-containing copolyesters which are preferably present in an amount of 30 to 70 percent by weight. The drafting material can be marked with felt-tip pens containing aqueous inks.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: April 25, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Klaus Thoese
  • Patent number: 4820745
    Abstract: Pressure-sensitive adhesives composed of radiation-cured (meth)acrylic-functional polyesters are prepared from base polyesters, fluid at room temperature, which have molecular weights of 1,000 to 10,000 and branched main chain, and/or from new polyesters having aliphatic side chains bound by ester bridges or, in some cases, ether bridges to the main chain, followed by functionalization of a maximum of 90% of the original hydroxyl groups of the base polyesters by reaction with (meth)acrylate compounds, and crosslinked by electron beam or ultraviolet radiation in a thin coating on a support. The new pressure-sensitive adhesives have the property and the advantage of being cross-linkable by radiation without the use of solvents or diluents.
    Type: Grant
    Filed: May 7, 1986
    Date of Patent: April 11, 1989
    Assignee: Huels Troisdorf Aktiengesellschaft
    Inventors: Hartmut Muller, Hans Huber
  • Patent number: 4803115
    Abstract: There is provided an electrical laminate comprising a cured assemblage of a plurality of glass fiber type substrates impregnated with a curable resin composition containing (a) a halogenated bisphenol type unsaturated polyester resin and (b) an epoxy acrylate resin which may optionally be halogen-containing. This laminate features high dimensional stability, improved through-hole reliability, and excellent mechanical strength. A continuous production method for laminates is also described.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: February 7, 1989
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yasuo Fushiki, Minoru Isshiki, Hiroshi Nakano, Masayuki Oizumi, Masayoshi Shimomura, Keiji Imajo
  • Patent number: 4752598
    Abstract: Dye-receiving sheets for heat transfer recording comprising on a substrate, a dye-receiving layer consisting essentially of a cured product of an acrylate having two acrylic or methacrylic unsaturated bonds. The sheet is used in combination with a dye transfer sheet comprising a sublimable dye, and has a high affinity for the dye and a high heat resistance without bleeding of the dye.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: June 21, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keiichi Yubakami, Hiromu Matsuda, Akihiro Imai, Nobuyoshi Taguchi
  • Patent number: 4752532
    Abstract: A primer composition primarily for the end of line repair of automobiles and trucks that has excellent adhesion to all types of substrates such as metal and plastics, and contains solvents and a film forming binder and pigments; wherein the binder contains about(1) 50-85% by weight, based on the weight of the binder, of a polyester of an alkylene diol, trimethylylol alkane, an aromatic dicarboxylic acid and a saturated aliphatic dicarboxylic acid having 3-10 carbon atoms wherein the hydroxyl groups of the polyester are esterified with an acid anhydride; the polyester copolymer has an acid no. of about 30-100, a hydroxyl number of about 50-120, a number average molecular weight of about 500-3,000 and a weight average molecular weight of about 1,000-6,000; and(2) 15-50% by weight, based on the weight of binder, of a methylated and butylated melamine formaldehyde agent having a degree of polymerization of about 1.5-2.0.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: June 21, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Zita Starka
  • Patent number: 4751120
    Abstract: In a thermoplastic polyester, a compound having at least two ethylenically unsaturated groups and/or oxirane rings in one molecule is coated as a crosslinking agent on the outer surface of the polyester substrate, or a polyester composition containing this crosslinking agent is laminated on the polyester substrate as the inner surface layer, and the crosslinking agent or the crosslinking agent-containing polyester composition is irradiated with ionizing radiant rays or ultraviolet rays. In this processed vessel, the dimension stability and rigidity are highly improved, and deformation under heat and/or pressure can be effectively prevented.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: June 14, 1988
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Jinichi Yazaki, Kozaburo Sakano
  • Patent number: 4749617
    Abstract: An article having two rigid layers joined by an aziridine-containing layer is provided.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: June 7, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: George Canty
  • Patent number: 4749621
    Abstract: Electronic components are disclosed comprising an insulator which is the in situ cured reaction product of a polymerizable oligomer which is end capped with a vinyl and/or acetylenic end groups.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: June 7, 1988
    Assignee: International Business Machines Corporation
    Inventors: Constance J. Araps, Steven M. Kandetzke, Mark A. Takacs
  • Patent number: 4741968
    Abstract: A heat and pressure consolidated laminate made with a plurality of core sheets impregnated with an unsaturated polyester treating solution, the polyester providing the laminate with improved flexibility and enabling a core color that matches the color of the decor or face sheet.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: May 3, 1988
    Assignee: Sterling Engineered Products Inc.
    Inventors: Andrew N. Dion, John B. Jalbert
  • Patent number: 4740426
    Abstract: A primer composition containing solvents, a film forming binder and pigments of an electrically conductive carbon black pigment and the binder contains about(1) 40-70% by weight of a polyester copolymer having linear segment with hydroxyl groups and a hydroxyl number of about 15-300 and a number average molecular weight of about 300-3,000 and branched chains having hydroxyl groups and having a hydroxyl number of about 175-300 and a number average molecular weight of about 500-2,000 and are attached to linear segment by esterification of the hydroxyl groups with a diacid or a anhydride; and(2) 30-60% by weight of an alkylated melamine formaldehyde crosslinking agent;wherein the composition forms a hard flexible coating on a substrate whereby the coated substrate can be bent 180.degree. around a 1/2 inch mandrel with the coating facing outward and the coating exhibits substantially no breaks or cracks when tested at -80.degree. C. and the coating has a surface conductivity of at least 160 Randsburg units.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: April 26, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Henry S. Tremper, III
  • Patent number: 4740567
    Abstract: Water reducible phenolic modified resins are described for use as binders in coating compositions which are non-lifting, recoatable with improved metal adhesion and corrosion resistance.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: April 26, 1988
    Assignee: Cargill, Incorporated
    Inventor: Roger A. Schmidt
  • Patent number: 4734335
    Abstract: The present invention relates to a three-layer film formed of polyesters, which is preferably produced in a coextrusion process. The film is suitable for embossing and does not tend to stick to the embossing tool, even at elevated temperatures. Under a thermal load which is necessarily applied in the further processing of the film, the depth of embossing is not changed or is only negligibly changed. The three-layer film formed of polyesters has external layers with higher melting points than the intermediate layer. Preferably, the external layers comprise polyethylene terephthalate and the intermediate layer of copolyester.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: March 29, 1988
    Assignee: Hoechst AG
    Inventor: Helmut Monzer
  • Patent number: 4726996
    Abstract: A phenolic resin based laminate material which can be cross-linked by acid catalysis, endowed with a reinforcement, comprising at least two surfaces and having on at least one of its two surfaces at least one additional nonphenolic resin-based layer is disclosed.In accordance with the invention, the additional layer in contact with the phenolic resin is obtained from a formula comprising an unsaturated polyester resin, a cross-linking solvent of said resin, possibly one or several other additives, at least one of the main components having a formula comprising hydrophilic centers in a number at least equal to the number of non-saturation centers in the polymeric chain of the resin.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: February 23, 1988
    Assignee: Everitube, c/o Saint-Gobain Recherche
    Inventors: Francois Le Gac, Pierre Chevalier
  • Patent number: 4710420
    Abstract: An unsaturated polyester resin composition is provided comprising a hard unsaturated polyester component, a soft unsaturated polyester component and a cross-linking monomer. The soft polyester component contains a polyoxyalkylene segment having a molecular weight from 600 to 6000 in the backbone thereof and is dispersed in the hard polyester component forming fine particles having a particle size not greater than 4 microns. The resin composition, when cured, exhibits a Tg corresponding to the hard polyester component from 100.degree. C. to 200.degree. C. and another Tg corresponding to the soft polyester component from -100.degree. C. to 0.degree. C.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: December 1, 1987
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Satoshi Tonoki, Hidenari Tsunemi, Asaichi Nishimura, Kunihisa Abe
  • Patent number: 4704325
    Abstract: A metallized film comprises a metallized layer bonded to a thermoplastic polymeric substrate by an adherent layer comprising a sulphonated polyester resin and an ethoxylated alkyl phenol. A polyester such as biaxially orientated polyethylene terephthalate, is a preferred substrate. The films exhibit improved bonding of the metallized layer to the substrate which bonding may be further enhanced by the inclusion of fine particulate filler in the adherent layer, and are of utility in diverse applications including decorative drapes, magnetic recording media and the packaging of liquids.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: November 3, 1987
    Assignee: Imperial Chemical Industries PLC
    Inventor: Christopher Crocker
  • Patent number: 4671995
    Abstract: A magnetic recording medium which comprises a non-magnetic support, and a magnetic layer formed on the support through an undercoat layer is described. The undercoat layer is made of a cured product of a mixture of a thermosetting polyurethane resin and a thermosetting polyester used in an amount of not greater than 10 wt % of the polyurethane resin. The undercoat layer further comprises a phosphate ester.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: June 9, 1987
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Satoshi Sekiya, Ikuo Matsumoto, Kuniharu Fujiki
  • Patent number: 4663236
    Abstract: Photographic base materials are described which contain on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of energy supplying radiation. Discoloration in connection with wet developing is avoided by including within the coating material, before hardening thereof, at least one unsaturated monomeric, oligomeric or polymeric hydroxyfunctional substance and by maintaining the molal concentration of the hydroxyl groups at a value of at least 2. The coating material as defined in the invention is suited for use as a base for photographic layers which are developed wet, as well as for those which are developed dry.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: May 5, 1987
    Assignee: Felix Schoeller Jr. GmbH & Co., KG
    Inventors: Reiner Anthonsen, Ferencz Kertesz, Heinz Trentmann, Wieland Sack
  • Patent number: 4621009
    Abstract: A coating composition for application onto a plastic film to produce a coating onto which xerographic toner will adhere is disclosed. The coating composition produces a coating having a glass transition temperature of from about 50.degree. to about 150.degree. C., a Sheffield surface smoothness of 28 to 50 and, when applied to both sides of the plastic film will generate an opacity of at least 75%. The coating composition comprises a resin binder, preferably a polyester resin, filler particles and solvent, and preferably further comprises a cross-linking agent and an antistatic agent. The coating composition is preferably applied to a polyester film, more preferably to a tear-resistant polyethylene terephthalate film.
    Type: Grant
    Filed: September 21, 1984
    Date of Patent: November 4, 1986
    Assignee: Avery International Corporation
    Inventor: Dalubhai M. Lad
  • Patent number: 4619954
    Abstract: A strong, fiberglass reinforced plastic material with fire retardant additive for use as a traffic sign blank material is described. The material is formed from a well balanced mixture of unsaturated polyester resin, halogenated polyester resin, inorganic fire retardant filler, monomer cross-linking agent and fiberglass reinforcement.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: October 28, 1986
    Assignee: Sequentia, Incorporated
    Inventor: Sidney O. Warner, II
  • Patent number: 4606976
    Abstract: A biaxially oriented thermo-fixed multilayer film is described, consisting of thermoplastic polyester materials having different melting points and having an essentially scratch-free surface. The characterizing features of the multilayer film described consist in the fact that a cover layer of a polyester B is applied to at least one surface of a base layer of thermoplastic polyester A, said polyester B having a lower melting point than polyester A, and by the fact that no scratches longer than 3.0 mm and greater than 10 microns in cross-section are present on the surface of the cover layer.
    Type: Grant
    Filed: April 16, 1985
    Date of Patent: August 19, 1986
    Assignee: American Hoechst Corporation
    Inventors: Hartmut Hensel, Helmut Monzer, deceased
  • Patent number: 4603074
    Abstract: A compounded and plasticized vinyl chloride polymer layer, optionally supported such as with a fabric, contains an outer adherent and stain resistant layer having durability and flexibility comprising the crosslinked reaction product of a reactive polyester having free carboxylic acid groups and an alkylated benzoguanamine-, urea- or melamine-formaldehyde resin. The vinyl chloride layer may be printed or embossed or both printed and embossed, optionally printed again, before the outer layer is applied.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: July 29, 1986
    Assignee: Gencorp Inc.
    Inventors: Joseph L. Pate, Dalton I. Windham, Jr.
  • Patent number: 4598021
    Abstract: A protective coating composition containing a polycaprolactone polyol and an aminoplast derivative is applied to a thermoplastic substrate to produce a thermoformable article having abrasion resistance, solvent resistance and weatherability.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: July 1, 1986
    Assignee: General Electric Company
    Inventor: James E. Moore
  • Patent number: 4595626
    Abstract: The present invention relates to conformable tile products which may be formed from aggregate material and relatively low weight percentages of unsaturated polyester resin precursors. When cured, the tiles may be adhered to subfloors utilizing ordinary resilient flooring-type adhesives. Further, they will be conformable to subsurface irregularities, and will have high strength and impact resistance when installed as a flooring surface.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: June 17, 1986
    Assignee: Armstrong World Industries, Inc.
    Inventors: Mary A. Brubaker, Wendell A. Ehrhart, William Y. Whitmore
  • Patent number: 4581093
    Abstract: Described are adhesives formed from certain diol/higher polyol/aromatic acid/aliphatic acid branched polyesters and laminates using them.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: April 8, 1986
    Assignee: Whittaker Corporation
    Inventors: Paul R. Noyes, Eugene G. Sommerfeld
  • Patent number: 4571363
    Abstract: A prime coated oriented polyester film material is disclosed wherein the primer coating consists essentially of a crosslinked copolymer containing at least about 50% by weight of acrylic and/or methacrylic monomers and from about 1% to 15% by weight of a comonomer capable of inter-molecular crosslinking upon the application of heat, and from 0 to about 49% by weight of one or more halogen-free mono-ethylenically unsaturated monomers copolymerizable therewith.The priming layer may be applied to the polyester film at any suitable stage during manufacture of the film, i.e., before or during the stretching operations, and is crosslinked after application by means of heat. The resultant primed polyester film is found to provide excellent adhesion to many organic solvent based coatings subsequently applied thereto, and to be reclaimable when reprocessed during the manufacture of polyester film without giving rise to significant or intolerable discoloration or degradation of the film.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: February 18, 1986
    Assignee: American Hoechst Corporation
    Inventors: E. C. Culbertson, Grover L. Farrar
  • Patent number: 4569888
    Abstract: A transparentized paper with a caliper of between 0.001 and 0.015 inch and the process for its preparation is disclosed. A paper web is treated with a liquid mixture of polyesters, acid monoesters of polyols and dicarboxylic acids in non aqueous polaric solvents having admixed therein methylol derivatives of polyamino compounds, with or without a catalyst. The impregnated paper is cured by an in-situ cross-linking reaction immobilizing the impregnated material. A transparentized paper results which is resistant to water, most organic solvents and heat and is useful as tracing material as well as a translucent base for sensitizing with reprographic coatings. The transparentized paper is not resistant to alkali and can be repulped in alkaline medium for recycling. The transparentized paper also exhibits antistatic properties.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: February 11, 1986
    Assignee: Andrews Paper & Chemical Co., Inc.
    Inventors: Peter Muller, Henry Mustacchi, Leonard Kreicas
  • Patent number: 4569966
    Abstract: Polymeric microparticles and dispersions of polymeric microparticles in a liquid hydrocarbon are disclosed. The dispersions are prepared by reacting in dispersed form a preformed NCO-prepolymer containing a segment solvated by the liquid hydrocarbon and a segment insoluble in the liquid hydrocarbon with an active hydrogen-containing compound. Reaction proceeds to form polymeric microparticles which are dispersed in the liquid hydrocarbon. Also disclosed are the use of the polymeric microparticles in coating compositions and articles coated with the coating compositions.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: February 11, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Robert M. Piccirilli, David T. McKeough, Wen-Hsuan Chang
  • Patent number: 4551390
    Abstract: This invention pertains to a method to permit the molding of a plurality of plies of polymeric compositions into an integral molded object having a minimum number of internal flaws and, therefore, improved properties. The plies are positioned in contiguous relationship, and the initiation of the polymerization reactions is controlled by selecting catalyst systems which substantially simultaneously initiate polymerization in each of the plies to prevent the development of curing seams at the points of contact between the plies.
    Type: Grant
    Filed: May 9, 1983
    Date of Patent: November 5, 1985
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: John L. Canning, John F. Kay
  • Patent number: 4535031
    Abstract: Modified aminoplast resin comprising:(a) 60 to 99.5% by weight of an aminoplast precondensate which has been etherified with a lower alkanol to an extent not exceeding 10% and(b) 0.5 to 40% by weight of a modifying agent which comprises a mixture of (i) a water-soluble polyester prepared from carboxylic acids with at least one carboxyl and dihydric or polyhydric alcohols, and (ii) sufficient free diol or polyol whereby the mixture has a ratio of the sum of free and esterified hydroxyls of 0.8 to 4.5 moles for each mole of the sum of free and esterified carboxyls which resins are useful in impregnating webs for producing laminates and panels of wood-based materials.
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: August 13, 1985
    Assignee: Cassella Aktiengesellschaft
    Inventors: Peter Dorries, Thomas Gotze, Steffen Piesch, Manfred Schon, Gunther Wulff, Karl Hintermeier
  • Patent number: 4522958
    Abstract: Disclosed is an essentially solvent-based, organic, high-solids coating composition containing (A) a film-forming binder system containing a crosslinkable resin having a weight average molecular weight of from about 500 to about 10,000; (B) substantially colorless, substantially inorganic microparticles stably dispersed in the coating composition; and (C) a solvent system for the crosslinkable resin. The inorganic microparticles prior to incorporation in the coating composition range in size from about 1 to about 150 nanometers and are in the form of a sol of the microparticles in which carbon-containing molecules are chemically bonded to the inorganic microparticles at the surface of the microparticles.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: June 11, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Suryya K. Das, William G. Boberski, Paul P. Greigger, James E. Jones, Raymond F. Schappert, Jerome A. Seiner
  • Patent number: 4513056
    Abstract: The invention relates to cellulosic supports rendered wholly or partly transparent by a process of impregnation. One of the characteristics of the impregnation compositions proposed is its aptitude to migrate very rapidly to the heart of the cellulosic supports. The invention is applicable to drawing, reproduction, windows for envelopes, lampshades, creation of watermarks by a photogravure process.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: April 23, 1985
    Assignee: Arjomari-Prioux
    Inventors: Michel Vernois, Jean-Paul Duboeuf
  • Patent number: 4504531
    Abstract: An aluminum atom- and monocarboxylic acid residue-containing polyester is provided. Using the polyester as an adhesive or a base, laminates and laminated hollow vessels which comprise, as the constituent elements, the polyester and an ethylene-vinyl alcohol copolymer can be produced. The laminates and laminated hollow vessels are suitable for use as packaging materials or containers for food and drink.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: March 12, 1985
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshifumi Murata, Keishiro Igi, Hiroshi Narukawa, Masao Uetsuki, Satoshi Bando, Shuji Kawai, Kenji Shirano
  • Patent number: 4500606
    Abstract: A sealer for solid polyester composition to reduce evolution of vapors at temperature 190.degree. C. or higher for 1 hour or more and to improve the bond at these temperatures with isocyanate polyurethane adhesives, epoxy adhesive or acrylic adhesive, the sealer comprising a mixture of 100 to 1000 parts of phenol-formaldehyde resin, 90 to 110 parts of a polyvinyl acetal resin, 10 to 40 parts of epoxy resin, and sufficient solvent to render the mixture brushable, sprayable or flowable.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: February 19, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: Thomas G. Rabito, Stephen M. Oswalt, Richard L. Cline
  • Patent number: 4495020
    Abstract: Disclosed is a primer composition which contains an isocyanate compound having one or more 1,3,5-oxadiazine-2,4,6-trione rings as an adhesion promoter, which is useful as a primer for bonding polyester plastics to the same or different substrates using an adhesive such as polyurethane, epoxy and polyolefin adhesives. When the surface of polyester plastics is treated with said primer prior to application of the adhesive, the bonding achieved is excellent in adhesion.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: January 22, 1985
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Masamitsu Nakabayashi, Masuo Miyaji, Yoshio Kamatani