Natural Resin Or Modified Forms Thereof Other Than Rosin Or Its Modified Forms Dnrm, E.g., Shellac, Dammar, Etc. Patents (Class 524/77)
  • Patent number: 6984696
    Abstract: Compositions are provided having from 70 wt % to 95 wt % of a polymer selected from homopolymers and random copolymers of propylene and from 5 wt % to 30 wt % of a miscible hydrocarbon resin with a glass transition temperature greater than 20° C. The polymer has a heat of fusion of less than 50 J/g, a melt index (MI) of less than 20 dg/min, and contains stereoregular propylene crystallinity. Also provided are films containing such compositions, and articles, such as diapers or incontinence garments, including such films.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 10, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Curry, Sudhin Datta
  • Patent number: 6805954
    Abstract: Pressure sensitive adhesive formulations comprising an acrylic copolymer and a mixture of tackifiers exhibit outstanding adhesion to foam facestocks.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: October 19, 2004
    Assignee: National Starch and Chemical Investment Holding Corporaton
    Inventors: Eric Silverberg, Peter A. Walter
  • Patent number: 6797774
    Abstract: The present invention provides a polyolefin resin for hot melt adhesives containing [I] a propylene polymer in an amount of 20 to 99 mass %, and [II] an adhesive capacity applying resin in an amount of 80 to 1 mass %, wherein [I] the propylene polymer satisfies the requirements of (1) a meso pentad fraction (mmmm) is from 0.2 to 0.6; and (2) a racemic pentad fraction (rrrr) and (1−mmmm) satisfy the relation: [rrrr/(1−mmmm)]≦0.1. The polyolefin resin for hot melt adhesives is superior in thermostability or flowing ability at high-temperature, easy for coating, environmentally friendly with little fear of generating toxic gas in the disposal and incineration, superior in adhesive property to lowly polar substances and in heat resistance of the adhesion face.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: September 28, 2004
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventor: Masato Kijima
  • Patent number: 6780910
    Abstract: An aqueous emulsion of an alkyd resin which contains as an emulsifier at least one branched primary alcohol alkoxylate of the formula (I): [CH3.(CH2)n][CH3.(CH2)m].CH.[(CH2)p.O.(AO)q.H], where n and m are each independently from 1 to 13; and p is 1 or 2; such that n+m+p is from 5 to 15; AO is an alkylene oxide residue having from 2 to 4 carbon atoms, and q is from 5 to 50. The alkyd emulsion is particularly suitable for use as a waterborne paint or surface coating composition.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: August 24, 2004
    Assignee: Imperial Chemical Industries PLC
    Inventors: Alain Bouvy, Bart Simon Alfons Dehuvyne
  • Patent number: 6723778
    Abstract: An aqueous composition that includes (A) a butadiene polymer latex that is prepared by an emulsion polymerization in the presence of a styrene sulfonate stabilizer and (B) a phenolic resin. A preferred aqueous butadiene polymer latex is one that is prepared by emulsion polymerization of at least 60 weight percent dichlorobutadiene monomer (based on the amount of total monomers used to form the butadiene polymer), in the presence of a styrene sulfonate stabilizer.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: April 20, 2004
    Assignee: Lord Corporation
    Inventors: Helmut W. Kucera, Thomas Rizzo
  • Publication number: 20040024094
    Abstract: The present invention relates to a composition comprising an aqueous dispersion of shellac and a copolymer, to a process for preparing it, and to the use thereof for coating sausages having a natural or artificial sausage casing, and hard cheese.
    Type: Application
    Filed: July 24, 2003
    Publication date: February 5, 2004
    Inventor: Heinz Stemmler
  • Patent number: 6565960
    Abstract: The invention relates to methods of treating mixtures containing polymeric materials, e.g., collagen, to form a polymer that intercalates into the polymeric material. The treatment provides greater tensile strength to the mixture, among other advantages. The polymer is formed of a monomeric unit having at least one catechol group that is oxidized to a quinone upon polymerization.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: May 20, 2003
    Assignee: Shriners Hospital of Children
    Inventors: Thomas J. Koob, Daniel J. Hernandez
  • Patent number: 6518334
    Abstract: This invention relates to polymer blends comprising a polycarboxypolyamide resin with an alkali dispersible resin. This invention also relates to the use of the polymer blends to prepare aqueous dispersions. The aqueous dispersions were obtained by heating polycarboxypolyamide resins with alkali dispersible resins in an aqueous medium. The invention further relates to coating compositions containing the aqueous dispersions. Such coating compositions include inks, floor finishes, overprint varnishes, sizing, paints and adhesives.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: February 11, 2003
    Assignee: JohnsonDiversey, Inc.
    Inventors: Glenn C. Calhoun, Michael T. Sarkis
  • Patent number: 6350794
    Abstract: A denture adhesive base composition comprising a polycarbophil component and ethylene oxide polymer. A denture adhesive composition including this base composition is also provided with other optional adhesive components. Also is provided a method for formulating a novel denture adhesive base composition comprising a polycarbophil component and ethylene oxide polymer.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: February 26, 2002
    Assignee: Block Drug Company, Inc.
    Inventor: Michael J. Borja
  • Patent number: 6348217
    Abstract: A stable bleached shellac and an improved method for making stable bleached shellac is provided which involves precipitating bleached stable shellac from a pre-shellac solution at a pH of from 5.0 to 6.8, preferably from 5.0 to 6.5, most preferably from 5.0 to 6.0. The stable particulate shellac and the stable shellac solution, have a longer shelf life than conventional shellac. The stable shellac solution is comprised of solubilized particulate shellac in a solvent, most preferably ethanol. The stable particulate shellac and the stable shellac solution have a pH of from 4 up to less than 5 or from 5.0 to 6.8, more preferably from 5.0 to 6.5, even more preferably from 5.0 to 6.3, most preferably from 5.0 to 6.0.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: February 19, 2002
    Assignee: Mantrose-Haeuser Co. Inc.
    Inventors: Stephen A. Santos, Joseph F. Cotter, Sr., Margaret M. McWeeney
  • Patent number: 6302950
    Abstract: The invention relates to an aqueous solution or dispersion with high shellac content. The aqueous shellac solution or dispersion is characterized in that it has a pH value of 2 to 4.2, and contains: 1 to 60% wt. shellac; 0.1 to 3% wt. of at least one water-soluble film former; 0.1 to 1% wt. of at least acid-resistant gel former; and water bringing the total to 100% wt. In accordance with the invention, the solution is produced by the following method: particle-shaped shellac is added to an aqueous solution and homogenized by stirring at 10 to 1500 rev/min., at a temperature of 5 to 20° C. The aqueous solution has a pH value of 2 to 4.2 and contains at least one water-soluble film former and at least one acid-resistant gel former. The shellac solution or dispersion can be used in the paint and varnish industry, the food industry and in cosmetics.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: October 16, 2001
    Assignee: Lancaster Group GmbH
    Inventors: Karin Golz-Berner, Leonhard Zastrow
  • Patent number: 6288148
    Abstract: Acrylic emulsions are obtained by carrying out a polymerization reaction of a first acrylic monomer dispersion, adding a second acrylic monomer dispersion, and carrying out a further polymerization reaction wherein the first acrylic monomer dispersion contains acrylic monomer and tackifier in a first proportion to acrylic monomer contained in the first acrylic monomer dispersion and wherein the second acrylic monomer dispersion contains acrylic monomer and tackifier in a second proportion to acrylic monomer contained in the second acrylic monomer dispersion, and wherein the proportion of tackifier in the first acrylic monomer dispersion is lower than the proportion of tackifier in the second acrylic monomer dispersion. A high molecular weight acrylic polymer is obtained when the first acrylic monomer dispersion is polymerization reacted. The second acrylic monomer dispersion is added to the first acrylic monomer dispersion after the first acrylic monomer dispersion is polymerization reacted.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: September 11, 2001
    Assignee: Sony Chemicals Corp.
    Inventors: Hiroshi Samukawa, Kazuki Shibata
  • Patent number: 6275816
    Abstract: A aqueous ink for a ball-point pen which is stable over time and has high pigment dispersion stability, includes a pigment, a water-soluble organic solvent, water, xanthane gum of about 0.01 to about 0.2 wt. % and a sodium alginate of about 0.2 to about 0.6 wt. % of a total amount of the ink.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: August 14, 2001
    Assignee: Kotobuki & Co., LTD
    Inventors: Katsuya Hattori, Akio Nakamura, Mikio Morishita
  • Patent number: 6235818
    Abstract: A hot melt adhesive composition exhibiting excellent adhesive strength and which is useful as an adhesive for styrene resins contains (B) tackifier and (C) ethylene/C3-C20 &agr;-olefin/aromatic vinyl compound random copolymer and, in some embodiments also (A) base polymer, such as polyolefin, polar group-containing polymer and aromatic vinyl compound/conjugated diene copolymer. A low molecular weight polyolefin may also be included in all embodiments. The randon copolymer (C) may be prepared by polymerizing the &agr;-olefin and aromatic vinyl compound in the presence of a metallocene containing catalyst. In addition to excellent adhesive strength the hot melt adhesives have improved workability.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: May 22, 2001
    Assignee: Mitsui Chemicals
    Inventors: Kenichi Morizono, Keiji Okada, Suguru Tokita
  • Patent number: 6207265
    Abstract: A water soluble, non-ionic masking agent is used in the manufacture of printed circuit boards. The masking agent masks portions of the circuit board to prevent adhesion of solder, flux and the like. The masking agent includes a water soluble non-ionic binder resin, a cellulosic non-ionic filler, a non-ionic surfactant, at least one non-ionic associative thickener, and deionized water. The masking agent material is readily removed from the circuit board after manufacture and does not render further wash water processing ineffective. The masking agent is non-ionic, and thus does not agglomerate or clump downstream ion-exchange or filtration media.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: March 27, 2001
    Assignee: Illinois Tool Works Inc.
    Inventors: John W. Holdren, II, Eric Martini
  • Patent number: 6172146
    Abstract: A hot melt composition comprising a specific ratio of: (a) an ethylene copolymer resin; (b) a modified aromatic petroleum resin having a specific weight-average molecular weight and produced by copolymerization using a Friedel-Crafts catalyst from a specific ratio of: (1) a polymerizable component of the thermal cracked oil fraction having boiling points in a specific range and obtained by the thermal cracking of petroleum hydrocarbons, and containing vinyltoluene and indene at specific contents, (2) a turpentine oil having a specific diene value, and (3) a phenol compound; and (c) a wax. It is possible to develop a hot melt composition having excellent heat stability and improved adhesion resistance to heat, which can be used as hot melt coating, printing ink, adhesive, and sealant, etc.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: January 9, 2001
    Assignee: Nippon Petrochemicals, Co. Ltd.
    Inventor: Hitoshi Yanagishita
  • Patent number: 6020405
    Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of the above-described inks.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: February 1, 2000
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, Robert P. Rodebaugh
  • Patent number: 6011104
    Abstract: Footware dressings containing fluorocarbons in a carrier base plus optional colorants and additives. These dressings create a relatively slick and non-stick surface with excellent "contamination" resistance.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: January 4, 2000
    Inventor: Joseph D. Udy
  • Patent number: 6007610
    Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device in which recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Also, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks. Furthermore, the disclosed phase change inks inhibit corrosion of metallic internal printer parts.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: December 28, 1999
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, Robert P. Rodebaugh
  • Patent number: 6001904
    Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device in which recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: December 14, 1999
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, Robert P. Rodebaugh
  • Patent number: 6001910
    Abstract: A remoistenable hot melt adhesive composition comprising (i) 25 to 80% by weight of a sulfonated polyester;(ii) 3 to 40% by weight of an anionic or cationic plasticizer;(iii) 0 to 40% by weight of a polar tackifier;(iv) 0 to 3% by weight of an antioxidant; and(v) 10 to 35% by weight of a polar wax; and(vi) optionally 0 to 30% nonionic plasticizer, wherein the total of (i)-(vi) to equal 100% by weight.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: December 14, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Mitchell J. Blumenthal, Charles W. Paul, Matthew L. Sharak
  • Patent number: 5990227
    Abstract: Disclosed herein is an ink-jet recording process which comprises applying a first liquid at least containing a water-soluble resin having at least one carboxyl group or anhydride thereof, or sulfonic group per molecule to a recording medium and then applying an ink at least comprising water, an organic solvent, a dye, an alkali-soluble resin and an alkali to the portions where the first liquid has adhered, thereby forming an image. An ink set and an instrument for use in such a process are also disclosed.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: November 23, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihisa Takizawa, Makoto Aoki, Yutaka Kurabayashi
  • Patent number: 5973036
    Abstract: Phase-change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibilty, offset and pick resistance, adhesion, and other desired properties. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: October 26, 1999
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, Robert P. Rodebaugh
  • Patent number: 5932680
    Abstract: The hot-melt adhesive of the invention includesA) at least one polyurethane prepolymer ofa) at least one polyisocyanate, in particular, toluene diisocyanate and/or MDI,b) at least one polyalkylene glycol at a concentration of more than 10% by weight based on total hot-melt adhesive, in particular, polypropylene glycol,c) at least one polyester glycol, preferably of at least two polyester glycols having different glass transition temperature, andB) optional additives such asd) a resin, particularly a hydrocarbon resin, ande) a stabilizer, particularly toluenesulfonyl isocyanate.Preferably, the hot-melt adhesive has a melt viscosity ranging from 10 to 300 Pa.s at 130.degree. C. The PU pre-polymer has only one single Tg in the DSC diagram. The hot-melt adhesive is notable for its high creep resistance with similarly high initial and final strength.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: August 3, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Roland Heider
  • Patent number: 5854306
    Abstract: There is provided a method and novel formulations for printing images on a latex rubber surface. An ink containing natural or synthetic rubber, a pigment dispersion, and an aromatically unsaturated solvent medium for said rubber is used. The stability of the image is improved providing to the rubber molecules of the ink, an agent, such as an aryl diisocyanate, that will form a tough, flexible, chemically resistant matrix between the rubber molecules of the ink, the base coat, where present and the latex surface. A base coat may be used upon the latex surface to anchor the printing ink thereto. This base coat can comprise a natural rubber in an aromatically unsaturated solvent and may also contain the aryl diisocyanate. The method may be improved by certain post printing steps such as heating and curing the printed product.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: December 29, 1998
    Assignee: Herbert Glatt
    Inventors: Henry Mattesky, James Gugger
  • Patent number: 5599895
    Abstract: The hot-melt adhesive of the invention includesA) at least one polyurethane prepolymer ofa) at least one polyisocyanate, in particular, toluene diisocyanate and/or MDI,b) at least one polyalkylene glycol at a concentration of more than 10% by weight based on total hot-melt adhesive, in particular, polypropylene glycol,c) at least one polyester glycol, preferably of at least two polyester glycols having different glass transition temperature, andB) optional additives such asd) a resin, particularly a hydrocarbon resin, ande) a stabilizer, particularly toluenesulfonyl isocyanate.Preferably, the hot-melt adhesive has a melt viscosity ranging from 10 to 300 Pa.s at 130.degree. C. The PU prepolymer has only one single Tg in the DSC diagram. The hot-melt adhesive is notable for its high creep resistance with similarly high initial and final strength.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: February 4, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Roland Heider
  • Patent number: 5504130
    Abstract: Disclosed are compositions having the characteristic of improved flow for compositions comprising a poly(phenylene ether) resin, a polyester resin, a polycarbonate resin, a reinforcing filler, a terpene phenol resin. The compositions may further comprise at least one additional material from the group consisting of impact modifiers, non-elastomeric polymers of an alkenyl aromatic compound and an additive package. The heat distortion temperature of the compositions can be further improved with the addition of an optional non-reinforcing filler in combination with a poly(tetrafluoroethylene) resin without significant loss of the physical properties.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: April 2, 1996
    Assignee: General Electric Company
    Inventor: Geoffrey H. Riding
  • Patent number: 5502094
    Abstract: This invention relates to physiologically acceptable emulsions of perfluorocarbon ether hydrides having 8 to 12 carbon atoms. These novel emulsions have various medical applications. They are especially useful medically as contrast media for various biological imaging modalities such as nuclear magnetic resonance, .sup.19 F-magnetic resonance imaging, ultrasound, x-ray, and computed tomography, as oxygen transport agents or "artificial bloods" in the treatment of heart attack, stroke, and other vascular obstructions, as adjuvants to coronary angioplasty and in cancer radiation treatment and chemotherapy.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: March 26, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George G. I. Moore, Richard M. Flynn, Miguel A. Guerra
  • Patent number: 5378739
    Abstract: A W/O emulsion ink for use in stencil printing is composed of an oil phase and a water phase with the respective ratios by wt. % thereof being (20 to 40):(80 to 60). The oil phase is composed of a solvent component containing a volatile solvent with an initial boiling point of 150.degree. to 210.degree. C. and a nonvolatile solvent, with the respective ratios by wt. % thereof being (10 to 30):(90 to 70), a coloring agent, a resin, and a surface-active agent, with the amount of the resin in the oil phase being in the range of 2 to 8 wt. % of the total weight of the emulsion.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: January 3, 1995
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Koike, Hitoshi Ueda, Hiroshi Tateishi, Naohito Shimota, Fumiaki Arai
  • Patent number: 5362792
    Abstract: An adhesive composition is comprised of a mixture of an EVA copolymer and two tackifying resins, a high temperature tackifying resin and a low temperature tackifying resin. The viscosity of the adhesive composition is between 2,000 cps to 80,000 cps over a temperature range of 250.degree. F. to 380.degree. F. The composition comprises 60% by weight of the copolymer, 15% by weight of the low temperature tackifying resin and 25% by weight of the high temperature tackifying resin.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: November 8, 1994
    Assignee: Uniplast, Inc.
    Inventor: Elias S. Maayeh
  • Patent number: 5270360
    Abstract: A two-phase thermoplastic composition adapted for forming thermoplastic patterns. The composition comprises an organic thermoplastic pattern material and at least about 5% by weight of discrete particles of cross-linked poly(methylmethacrylate) that are physically stable at temperatures above 130.degree. F. Also disclosed are investment casting patterns of such composition and processes utilizing such composition.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: December 14, 1993
    Assignee: Yates Manufacturing Company
    Inventor: Paul Solomon
  • Patent number: 5242963
    Abstract: A pressure sensitive adhesive composition comprising a vinyl acetate/ethylene/acrylate copolymer emulsion containing 5 to 60 wt % tackifier resin, on a total solids basis.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: September 7, 1993
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Chung-Ling Mao
  • Patent number: 5231123
    Abstract: A basing cement comprises, in weight percent, 80 to 85 filler material of limestone and lithopone, and 15 to 20 of binder resins including at least 6 weight percent of araucaria resin.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: July 27, 1993
    Assignee: GTE Products Corporation
    Inventors: Nidhi Goel, John A. Arbie, Sr., Kevin L. Brown, Doris L. Brown
  • Patent number: 5194464
    Abstract: An enteric film is produced by spraying on a material a mixed solution of (a) hydroxypropylmethylcellulose phthalate exhibiting a viscosity of about 136 to 204 centistokes as 10% methanol/dichloromethane (1:1 by weight) solution at 20.degree. C., (b) polyethylene glycol presenting solid state at ambient temperature and (c) shellac, wherein respective ratios of (b) and (c) to (a) are 0.1 to 20 weight percent and 5 to 40 weight percent; and then drying the solution.The enteric film excels in film strength and acid resistance, and can be employed in pharmaceutical preparations.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: March 16, 1993
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shunichi Itoh, Hiroyoshi Koyama, Toshio Kashihara, Shin-ichiro Hirai
  • Patent number: 5176779
    Abstract: Adhesively edge-padded stack of carbonless copy paper better separates upon fanning into collated sets when a thin layer of hot-melt adhesive is used for the edge-padding. As in the prior art, the outer surfaces of each set should have a release coating such as a fluorocarbon. The layer of hot-melt adhesive includes, by weight:20-50% thermoplastic copolymer,15-50% tackifying resin, and20-60% wax having a melting point of at least 60.degree. C.As soon as the adhesive has cooled below its softening point, the stack can be fanned, thus breaking it into sets. Fanning can usually be performed within 45 seconds, because there is no need to wait for the adhesive to dry as has been necessary with the aqueous adhesives that have been used in the prior art. Preferably at least 20% by weight of the adhesive is a paraffin wax that is [.alpha.] C.sub.35 -C.sub.70 substantially straight-chain hydrocarbon.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: January 5, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kenneth J. Perrington, James M. DeWanz
  • Patent number: 5164441
    Abstract: Acrylic copolymer PSA compositions having enhanced peel strength without substantially decreasing shear properties have been formulated by homogeneously incorporating the tackifying resin into the polymer matrix. The tackifying resin is dissolved into a solution of alkyl (meth) acrylate and (meth) acrylic acid monomers prior to polymerization. To enhance the molecular weight of the resultant PSA, the monomer/tackifier solution is emulsion polymerized in the absence of chain transfer agents, such as antioxidant additives typically found in commercially available tackifiers, and allylic hydrogen present in many unsuitable tackifiers.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: November 17, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Henry W. Yang
  • Patent number: 5112889
    Abstract: Pressure-sensitive adhesive compositions and an improved refastenable tape closure system comprising a release tape and a fastening tape wherein the fastening tape has a balance of properties such that the tape exhibits a maximum in the peel force between peel rates of 10 cm./minute and 400 cm./minute when peeled from a polyolefin substrate as found in disposable diaper back sheets are disclosed. The adhesive of the fastening tape comprises a specific range of compositions including an elastomeric component based on an A-B-A block copolymer wherein the A blocks are derived from styrene or alphamethylstyrene and the B block are derived from isoprene, butadiene, or hydrogenated versions of these or an (AB) block copolymer of the same type of composition in another geometry such as a tapered block copolymer or a radial block copolymer, a solid tackifier resin, a liquid tackifier resin, and an end block reinforcing resin.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: May 12, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Miller, Egbert A. von Jakusch
  • Patent number: 5098943
    Abstract: A water repellent having the following components (A), (B), (C) and (D) emulsified in water:(A) a wax having a melting point of from 40.degree. to 90.degree. C.;(B) a styrene-maleic anydride copolymer;(C) a water-soluble alkaline compound; and(D) a polyvinyl alcohol having a saponification degree of at least 85 mol %.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: March 24, 1992
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Toru Tagawa, Takao Tadenuma, Yasoji Ozawa
  • Patent number: 5074915
    Abstract: Printing inks comprising an oxidation polymerization type resin, at least a part of which sets to gel in a non-polar ink solvent, a color agent, and an ink solvent, at least a part of which being a non-volatile polar solvent. When the printing ink is applied onto an absorbent printing object, the non-volatile polar solvent is easily absorbed by the printing object to gel the oxidation polymerization type resin, thereby to allow the ink to dry quickly, whereas the ink on non-absorbent printing members of a printing machine does not dry easily.
    Type: Grant
    Filed: January 11, 1990
    Date of Patent: December 24, 1991
    Assignee: Taniguchi Ink Manufacturing Co., Ltd.
    Inventors: Yoshioki Yoshioka, Kiyoe Hoshino, Shigeru Nakamura
  • Patent number: 5028646
    Abstract: Pressure-sensitive adhesive compositions and an improved refastenable tape closure system comprising a release tape and a fastening tape wherein the fastening tape has a balance of properties such that the tape exhibits a maximum in the peel force between peel rates of 10 cm./minute and 400 cm./minute when peeled from a polyolefin substrate as found in disposable diaper back sheets are disclosed. The adhesive of the fastening tape comprises a specific range of compositions including an elastomeric component based on an A-B-A block copolymer wherein the A blocks are derived from styrene or alphamethylstyrene and the B blocks are derived from isoprene, butadiene, or hydrogenated versions of these or an (AB) block copolymer of the same type of composition in another geometry such as a tapered block copolymer or a radial block copolymer, a solid tackifier resin, a liquid tackifier resin, and an end block reinforcing resin.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: July 2, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Miller, Egbert A. von Jakusch
  • Patent number: 5021476
    Abstract: The invention relates to an elastic street pavement mass comprising aggregate bound by a binder and, when needed, coloring agents and other additives, and which is particularly suitable for preparing pavements having the shade of the aggregate or being toned. The efforts made so far to replace bitumen, which is hard to dye, by a colorless binder, have resulted in the use of expensive and brittle binders. However, an economical, strong and dyeable pavement mass has now been discovered, the binder of which consists of tall oil resin, wood resin, turpentine resin, their derivatives or a mixture formed by these agents, and of a process oil softening the above resins, comprising additionally rubber and plastic as auxiliary agents. The products have a better stability and at least as high an abrasion resistance to studded tires as a conventional bitumenous pavement mass.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: June 4, 1991
    Assignee: O Pinomaa KY
    Inventor: Olli Pinomaa
  • Patent number: 5011876
    Abstract: Pneumatic tires having an improved steering response have a tread portion which comprises an elastomeric composition containing a long chain hydroxy fatty acid or a derivative thereof, or an inter-condensed or intracondensed form thereof. The hydroxy fatty acid can be a saturated monocarboxylic acid having:(a) 9 to 25 (for example 13 to 17 and especially 15, 16, or 17) carbon atoms as well as the carbon atom of the carboxylic acid group; and(b) 1 to 6 (for example 2, 3 or 4) hydroxy groups.Suitable compounds are di- and tri-hydroxy palmitic and stearic acids. The invention is concerned particularly with the use of shellac as the hydroxy fatty acid compound.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: April 30, 1991
    Assignee: Sumitomo Rubber Industries Limited
    Inventors: Robert J. Blythe, Paul G. Scally
  • Patent number: 5006583
    Abstract: Irregular shaped particles of cross-linked copolymer of styrene-divinylbenzene in which essentially 90% or more of the particles pass through a 100 mesh screen (U.S. Sieve Series) and essentially 50% pass through a 200 mesh screen (U.S. Sieve Series) is produced by high speed attrition milling of relatively inexpensive large-sized copolymer beads. The resulting particles are irregularly shaped cross-linked copolymer particles which are desirable and useful as a filler material for investment casting waxes. The small-sized irregularly-shaped cross-linked copolymer beads produced by high speed attrition milling essentially eliminate any "orange peel" effect on wax pattern surface and also results in improved packing of the wax composition thereby producing high quality precision parts more readily than heretofore possible.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: April 9, 1991
    Assignee: M. Argueso & Co., Inc.
    Inventor: Peter G. Argueso
  • Patent number: 4985475
    Abstract: The invention provides a grease compatible encapsulant composition capable of use with signal transmission devices, such as electrical or optical cable. The composition is the extended reaction product of an admixture of an anhydride functionalized compound, a crosslinking agent, and an oxirane containing material which provides improved hydrolytic stability to the encapsulant composition.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: January 15, 1991
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Thomas S. Croft, Hartwick Haugen
  • Patent number: 4985535
    Abstract: A moisture-curable hot-melt adhesive composition comprising a reaction product obtainable by reacting (A) a mixture of (a) a high molecular weight thermoplastic polyester component predominantly composed of a hydroxy-terminated high molecular weight polyester containing a hydrocarbon chain with a molecular weight of 600 to 6,000 and having a molecular weight of 8,000 to 25,000 and (b) a low molecular weight polyol having a molecular weight of not more than 5,000 with (B) a polyisocyanate compound in an NCO/OH ratio of 1.4 through 3.This moisture-curable hot-melt adhesive composition is useful for the adhesion at a low temperature, and shows an excellent heat resistance and initial physical properties.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: January 15, 1991
    Assignee: Sunstar Engineering Inc.
    Inventors: Masaharu Takada, Masaru Sugimori
  • Patent number: 4975477
    Abstract: Disclosed are certain polyester adhesive blend compositions comprising about 45-90 wt. percent of a copolyester, about 3-15 wt. percent of a plasticizer, and about 7-40 wt. percent of a tackifying resin. The blends are particularly useful in hot-melt glue gun applications.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: December 4, 1990
    Assignee: Eastman Kodak Company
    Inventors: Abraham J. Cox, Max F. Meyer, Jr.
  • Patent number: 4938801
    Abstract: Printing inks comprising an oxidation polymerization type resin, at least a part of which sets to gel in a non-polar ink solvent, a color agent, and an ink solvent, at least a part of which being a non-volatile polar solvent. When the printing ink is applied onto an absorbent printing object, the non-volatile polar solvent is easily absorbed by the printing object to gel the oxidation polymerization type resin, thereby to allow the ink to dry quickly, whereas the ink on non-absorbent printing members of a printing machine does not dry easily.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: July 3, 1990
    Assignee: Taniguchi Ink Manufacturing Co., Ltd.
    Inventors: Yoshioki Yoshioka, Kiyoe Hoshino, Shigeru Nakamura
  • Patent number: 4904303
    Abstract: Water-dilutable printing ink binder system based on a binder in the form of a clear, dilute, ammoniacal or amine-containing solution, the binder being a product of reacting a natural resin acid and formaldhyde in at least one stage, the amount of (100% strength) formaldehyde being 1 to 25% by weight, based on the natural resin acid, and the reaction having been carried out under atmospheric or superatmospheric pressure in the absence or in the presence of 0.1 to 2% by weight of a lewis catalyst. A variant comprises partially esterifying the natural resin acid/formaldehyde reaction product with at least one polycarboxylic acid unit of the group (a) an ethylenically unsaturated dicarboxylic acid and/or the anhydride thereof and (b) a hydroxycarboxylic acid. The binder system has added to it as solubilizers monohydric and/or polyhydric alcohols, and the pH value is preferably set to 7.5 to 10.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: February 27, 1990
    Assignee: Hoechst AG
    Inventors: Albert Rudolphy, Helmut Eckes
  • Patent number: 4870128
    Abstract: A hot melt gasket for a closure having improved cracking and cut-through resistant properties comprising one or more copolymers of ethylene and an olefinic carboxylic acid. Preferably, a hot melt gasket comprised of one or more ethylene-acrylic acid and/or ethylene-methacrylic acid copolymers. The hot melt gasket is particularly useful in closures which are subjected to elevated temperatures and/or excessive headloads, such as warehoused products and pasteurized food stuffs.
    Type: Grant
    Filed: March 18, 1989
    Date of Patent: September 26, 1989
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Marysusan Couturier, Donna Trainor
  • Patent number: 4857563
    Abstract: The invention provides an encapsulant composition capable of use with signal transmission devices, such as electrical or optical cable. The composition is the extended reaction product of an admixture of an anhydride functionalized composition and a crosslinking agent.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: August 15, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas S. Croft, Hartwick A. Haugen