Two Or More Solid Polymers Or At Least One Solid Polymer And At Least One Specified Intermediate Condensation Product Patents (Class 524/271)
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Patent number: 5093406Abstract: There are provided a pressure-sensitive adhesive which are free radical cured mixtures of at least one unsaturated elastomeric polymer and at least one organic additive which is substantially nonresponsive to action of free radicals and present in an amount sufficient to modify thr properties of the cured elastomeric polymer which mixture prior to cure has a viscosity of less than about 30 Pascal-seconds at a hot melt application temperature less thant 175.degree. C.Type: GrantFiled: December 14, 1989Date of Patent: March 3, 1992Assignee: Avery Dennison CorporationInventors: Kevin S. Lossner, Yukihiko Sasaki
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Patent number: 5080978Abstract: Hot-melt adhesives based upon a mixture composed of poly(vinylmethylether), greater than about 10 weight percent of a thermoplastic resin and, optionally a tackifier resin and/or extender, are found to be superior for the binding of polyolefins such as polyethylene, polypropylene, and ethylene-propylene copolymers to themselves and to other substrates. In particular, the hot-melt adhesives are useful for bonding polyethylene-backed and latex-backed carpet to polyethylene, polypropylene, or ethylene-propylene copolymer.Type: GrantFiled: April 22, 1991Date of Patent: January 14, 1992Assignee: Amoco CorporationInventors: Matthew A. Kulzick, Wayne R. Pretzer, Tsuei-Yun Lynch, Paul A. Koning
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Patent number: 5080746Abstract: This system for thermoplastic adhesives includes (A) a first composition without anhydride groups, containing: a) at least one polymer chosen from the thermoplastic polymers and the synthetic rubbers; b) at least one compound containing at least one group which can react with anhydride groups; c) at least one tackifying resin; and d) if desired, at least one plasticizer; (B) a second composition containing constituents Ba, Bc and Bd which are respectively analogous to the constituents Aa, Ac and Ad, and b) at least one polymer containing anhydride groups; and (C) at least one activator of the reaction between the reactive groups of Ab and the anhydride functions of Bb. Advantageously the activator (C) is wholly incorporated in the composition A and/or in the composition B, so as to form a two-component system.Type: GrantFiled: July 16, 1990Date of Patent: January 14, 1992Assignee: Societe Chimique Des Charbonnages S.A.Inventor: Kurt Sorg
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Patent number: 5070121Abstract: The invention concerns a solvent-free, polymerizing hotmelt substance free of, or low in monomers, for corrosion- and/or abrasion proofing and/or forming a protective film with barrier properties on a real substrates and molded bodies made of metal, plastic, cellulose materials and/or inorganic materials, in particular for wrapping purposes, and consisting of(a) one or more polymerizing polymers containing hydroxyls with an average molecular weight (M.sub.w) between 1,000 and 500,000 and with a glass transition temperature (T.sub.g).gtoreq.20.degree. C., and/or(b) one or more polymerizing, linear, unbranched and/or unbranched polyesters and/or their copolymers with an average molecular weight (M.sub.w) between 900 and 50,000 and with a glass transition temperature (T.sub.g).gtoreq.-50.degree. C.Type: GrantFiled: April 25, 1989Date of Patent: December 3, 1991Assignee: Schmalbach Lubeca AGInventors: Rudolf Hinterwaldner, Georg Bolte
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Patent number: 5066711Abstract: A wetness indicating hot-melt adhesive which changes color in response to the presence of moisture is disclosed, which contains 20 to 70 wt. % of polymer, about 28 to 10 wt. % of which is water sensitive polymer; 25 to 60% of organic acid which is selected from a high acid fatty acid, or rosin acid, or a combination thereof; 0 to 40% of water soluble wax; 0 to 60 wt. % of glycerol monostearate; 0 to 55 wt. % of hydrogenated castor oil; 0 to 15 wt. % of polyalkylene wax; 0 to 60 wt. % of compatible plasticizer; and a wetness indicating agent which changes the color of the composition in response to moisture therein. The time of response of the color change can be controlled from about one second to a somewhat larger value as desired.Type: GrantFiled: November 15, 1989Date of Patent: November 19, 1991Assignee: The International Group, Inc.Inventors: Herman Colon, Albert Maletsky
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Patent number: 5057571Abstract: The composite articles of this invention can be made more efficiently through the use of a single adhesive having sufficient resistance to creep, sufficiently high bond strength, and a viscosity that is controllable through a range permitting it to be used for elastic attachment and in fine line, multi-line extrusion or sprayed adhesive preparation techniques.Type: GrantFiled: October 9, 1990Date of Patent: October 15, 1991Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: David B. Malcolm, William L. Bunnelle
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Patent number: 5041492Abstract: Hot melt adhesive compositions for bonding rigid polypropylene substrates comprise intimate blends of an amorphous copolyolefin copolymer, a polyolefin wax, a rosin-based ester resin and a polybutylene copolymer.Type: GrantFiled: February 21, 1990Date of Patent: August 20, 1991Assignee: Findley Adhesives, Inc.Inventors: George Koprowicz, Patrick Czaplewski, Michael Kaczkowski
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Patent number: 5039726Abstract: The present invention relates to alkyl (C.sub.12 -C.sub.22) esters of rosin acids which are useful as a total or partial replacement for extender or processing oil in rubber formulations. Addition of the alkyl (C.sub.12 -C.sub.22) esters of rosin acid improve the tear of the vulcanizate.Type: GrantFiled: September 25, 1989Date of Patent: August 13, 1991Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson G. Wideman, Paul H. Sandstrom
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Patent number: 5026752Abstract: A hot melt adhesive consisting essentially of amorphous polypropylene, styrene-based themoplastic elastomer, tackifier and wax having a dissipation factor of about 0.010 or less at 1 kilohertz at 23.degree. C., and a volume resistivity of at least about 1.times.10.sup.14 ohm-cm at 23.degree. C. Such adhesives exhibit good shear strength and shock resistance.Type: GrantFiled: August 28, 1989Date of Patent: June 25, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: Toshinori Wakabayashi, Shinji Sugii
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Patent number: 5021492Abstract: The present invention relates to the use of a mixture of alkyl (C.sub.6 -C.sub.18) esters of rosin acids which are useful as a total or partial replacement for conventional waxes and diamine antidegradants in rubber formulations. Addition of the mixture of alkyl (C.sub.6 -C.sub.18) esters of rosin acid improve the weathering resistance of cured rubber compositions.Type: GrantFiled: October 22, 1990Date of Patent: June 4, 1991Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul H. Sandstrom, Lawson G. Wideman, Thomas J. Segatta
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Patent number: 5006582Abstract: Acrylic hot melt pressure sensitive adhesive compositions having a good balance of tack, peel and creep resistance at ambient temperature combined with optical clarity and desirable melt viscosity at elevated temperatures are prepared by copolymerizing acrylic and methacrylic alkyl esters of a non-tertiary alcohol or optionally acids with polymerizable poly methacrylate based macromonomers. The resulting acrylic copolymer has a graft or comb structure in which the acrylic backbone has a low Tg and the pendant macromonomer side chains have a Tg above room temperature.Compounding these acrylic copolymers with tackifiers and plasticizers dramatically improves the balance of pressure sensitive adhesive properties while lowering melt viscosity into a desirable range. The invention provides significant property enhancements even for acrylic copolymers having poor initial peel and shear adhesive properties.Type: GrantFiled: March 31, 1989Date of Patent: April 9, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Paul A. Mancinelli
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Patent number: 4994508Abstract: A composition comprising,(a) 1 to 99 parts by weight of a specific hydrogenated product of a block copolymer having at least one polymer block composed mainly of a vinyl aromatic compound and at least one polymer block composed mainly of a conjugated diene compound, a modified product which comprises said product modified with an .alpha.,.beta.-unsaturated carboxylic acid or a derivative thereof, or a mixture of said product and said modified product, wherein the content of the vinyl aromatic compound prior to hydrogenation is 5 to 95% by weight and a content of vinyl linkages [V] prior to hydrogenation which originated from the conjugated diene compound is 10 to 80%, said product satisfying the following conditions;(1) the hydrogenated ratio [A] of the total of aliphatic double bonds which originated from the conjugated diene compound is not lower than 5% and lower than 50%, and[B]/[V].sup.Type: GrantFiled: July 14, 1988Date of Patent: February 19, 1991Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Toshinori Shiraki, Yasuo Hattori
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Patent number: 4992500Abstract: Aqueous dispersions of thermoplastic polyamides based on dimeric fatty acids having melting points of at least 120.degree. C. or of mixtures of these thermoplastic polyamides, in which at least 20% of the polyamide has a melting point of at least 120.degree. C., and which contain salts of rosin derivatives having acid values of more than 120 as emulsifiers, show excellent properties as adhesives.Type: GrantFiled: February 1, 1989Date of Patent: February 12, 1991Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Klauck, Gerhard Gierenz, Juergen Wichelhaus
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Patent number: 4962135Abstract: Self polishing anti-fouling marine paint compositions, that can be prepared free of organotin, comprise: (i) at least one sparingly soluble organic compound that is an organic acid or an organic acid salt preferably selected from rosin-based compounds, metal salts of saturated fatty acids, either branched-chain or alicyclic; (ii) a copolymer prepared from at least one acrylic monomer, at least one monomer selected from C.sub.1 -C.sub.4 alkyl methacrylates and styrene, and at least one monomer selected from cyclic tertiary amides or imides having an alkenyl group; (iii) at least one sparingly soluble metalliferous pigment; (iv) at least one marine biocide which can also function as the pigment; and optionally (iv) one or more highly insoluble pigments.Type: GrantFiled: April 28, 1988Date of Patent: October 9, 1990Assignee: Labofina, S.A.Inventors: Jozef Braeken, Jean-Paul Dekerk, Hendrik van der Poel, Jozef Verborgt, Peter Haak
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Patent number: 4954550Abstract: System for thermoplastic cross-linking adhesive, preparation thereof and corresponding method of gluing.This system for thermoplastic adhesives includes (A) a first composition without anhydride groups, containing: (a) at least one polymer chosen from the thermoplastic polymers and the synthetic rubbers; (b) at least one compound containing at least one group which can react with anhydride groups; (c) at least one tackifying resin; and (d) if desired, at least one plasticizer; (B) a second composition containing constituents Ba, Bc and Bd which are respectively analogous to the constituents Aa, Ac and Ad, and (b) at least one polymer containing anhydride goups; and (C) at least one activator of the reaction between the reactive groups of Ab and the anhydride functions of Bb. Advantageously the activatior (C) is wholly incorporated in the composition A and/or in the composition B, so as to form a two-component system.Type: GrantFiled: April 1, 1988Date of Patent: September 4, 1990Assignee: Societe Chimique des Charbonnages S.A.Inventor: Kurt Sorg
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Patent number: 4948825Abstract: There are provided a pressure-sensitive adhesive and other compositions which free radical cured mixtures of at least one unsaturated elastomeric polymer and at least one organic additive which is substantially nonresponsive to action of free radicals and present in an amount sufficient to modify the properties of the cured elastomeric polymer.Type: GrantFiled: June 3, 1987Date of Patent: August 14, 1990Assignee: Avery International CorporationInventor: Yukihiko Sasaki
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Patent number: 4895567Abstract: A wetness indicating hot-melt adhesive which changes color in response to the presence of moisture is disclosed, which contains 20 to 70 wt. % of polymer, about 28 to 10 wt. % of which is water sensitive polymer; 25 to 60% of organic acid which is selected from a high acid fatty acid, or rosin acid, or a combination thereof; 0 to 40% of water soluble wax; 0 to 60 wt. % of glycerlo monostearate; 0 to 55 wt. % of hydrogenated castor oil; 0 to 15 wt. % of polyalkylene wax; 0 to 60 wt. % of compatible plasticizer; and a wetness indicating agent which changes the color of the composition in response to moisture therein. The time of response of the color change can be controlled from about one second to a somewhat larger value as desired.Type: GrantFiled: June 20, 1988Date of Patent: January 23, 1990Assignee: The International Group, Inc.Inventors: Herman Colon, Albert Maletsky
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Patent number: 4855335Abstract: Adhesive compositions useful for use with medical devices, such as adhesive tapes, consist essentially of a homogeneous mixture of one or more polyisobutylenes or blends of one or more polyisobutylenes; a tackifying resin; a styrene copolymer; mineral oil; a water insoluble, water swellable, synthetic hydrocolloid which forms a gel when wet; and, an ethylene vinyl acetate copolymer which increases the dimensional stability of the final composition.Type: GrantFiled: January 20, 1988Date of Patent: August 8, 1989Assignees: Findley Adhesives Inc., North Coast Adhesives Inc.Inventor: Michael A. Neperud
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Patent number: 4849295Abstract: A metal rubber gasket includes a central metal lamina sandwiched by two outer elastomer layers. The elastomer is a blend of a butadiene-acrylonitrile rubber and a random terpolymer of ethylene, alkyl acrylate and the mono alkyl ester of a dioic acid. Preferably the butadiene-acrylonitrile rubber is functionally modified with polar groups such as a carboxyl, amine, or hydroxyl groups.Type: GrantFiled: December 11, 1987Date of Patent: July 18, 1989Assignee: Eagle-Picher Industries, Inc.Inventors: Randy L. Dickerman, Wayne R. Melchior
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Patent number: 4824880Abstract: An adhesive is provided for adhering roofing shingles wherein the adhesive is a blend of asphalt, an elastomer, a tackifying resin and a petroleum oil.Type: GrantFiled: May 14, 1987Date of Patent: April 25, 1989Assignee: Owens-Corning Fiberglas CorporationInventors: Donald J. Algrim, William E. Uffner, Glenn D. Lamb, Stephen J. Jones
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Patent number: 4792584Abstract: An adhesive composition comprising100 parts by weight of a block copolymer (a) containing of at least one polymer block composed mainly ofa vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which(i) the vinyl aromatic hydrocarbon content [S] is 10 to 30% by weight,(ii) the 1,2-vinyl content of butadiene portion [V] is 20 to 50%, and(iii) the relationship between said vinyl aromatic hydrocarbon content [S] and said 1,2-vinyl content of butadiene portion [V] satisfies the formula,:40.ltoreq.[S]+[V].ltoreq.7040 to 200 parts by weight of a tackifier (b), and, optionallyvarious stabilizers, and a process for producing said composition.Type: GrantFiled: April 23, 1987Date of Patent: December 20, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Toshinori Shiraki, Yasuo Hattori, Masao Karouji
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Patent number: 4789699Abstract: An extrudable composition for forming nonwoven elastomeric material having pressure sensitive adhesive properties, nonwoven elastomeric sheet material (e.g., fibrous nonwoven webs) formed of such composition, stretch bonded laminates using such sheets, and methods of forming such sheets and such laminates, are disclosed. The composition includes an elastomeric polymer and a tackifying resin, and can also include a polyolefin. The nonwoven sheet material can be a meltblown nonwoven web. The laminate can be formed by tensioning the elastomeric sheet material and bonding a gatherable web (e.g., a spunbond polypropylene web) to the tensioned sheet material by application of pressure, the bonding being accomplished due to the adhesivity of the elastomeric sheet material and without application of heat for softening the sheet material and/or gatherable web.Type: GrantFiled: October 15, 1986Date of Patent: December 6, 1988Assignee: Kimberly-Clark CorporationInventors: John S. Kieffer, Tony J. Wisneski
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Patent number: 4788239Abstract: An aqueous contact cement, which comprises a dispersion in water of a chloroprene copolymer of 2-chloro-1,3-butadiene and methacrylic acid and a resinous polyelectrolyte of an ionizable resinous mixture which is ionized with a volatile ionizing atent, and ionizable resinous mixture being the reaction product of a rosin, a carboxylic acid, and a C.sub.1 -C.sub.18 mono-alcohol, said ionizable resinous mixture having a softening point not substantially above about 125.degree. C. and an acid number of between about 30 and 150, said reaction product comprising the carbocyclic nucleus of rosin having at least one carboxylic acid group and at least one carboxylic acid ester group of said mono-alcohol.Type: GrantFiled: August 8, 1986Date of Patent: November 29, 1988Assignee: Beecham Home Improvement Products Inc.Inventor: Wei T. Chang
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Patent number: 4783504Abstract: A sealant composition comprising:(a) 100 parts by weight of a silane functionalized polymer component which is prepared by reacting enough silane of the general formula R R'.sub.n SiY.sub.Type: GrantFiled: February 28, 1986Date of Patent: November 8, 1988Assignee: Shell Oil CompanyInventors: David J. St. Clair, Steven S. Chin
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Patent number: 4783366Abstract: This invention concerns a shock absorbing material placed between two objects for buffering the shocks, and a method of applying the same.Heretofore, a previously formed shock absorbing material is bonded by way of an adhesive or the like to an object to be buffered. However, there has been a disadvantage that no desired bonding strength can be obtained or the adhesive is degraded. It is intended in this invention to render the shock absorbing material fusible under heating, by which the shock absorbing material is fused due to the melting of the shock absorbing material itself with an object to be buffered using no adhesive thereby increasing the bonding area and improving the bonding strength as compared with the conventional case.Type: GrantFiled: June 27, 1986Date of Patent: November 8, 1988Assignees: Aisin Kako Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Kenzo Shimogo, Osamu Kito, Atsunobu Fujikawa, Osamu Sano, Haruhisa Susuki, Hiroshi Torii, Haruzi Shibata
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Patent number: 4776828Abstract: A toothed power transmission belt (10) is manufactured by an improved method to have substantially improved resistance to tooth root face cracking. The manufacture utilizes a modified rubber blend forming the teeth (15) and may utilize the same blend for embedding the load-carrying cords (14) to provide improved bonding of the teeth (15) to the cords (14) over a wide range of temperatures.Type: GrantFiled: October 13, 1987Date of Patent: October 11, 1988Assignee: Mitsuboshi Belting Ltd.Inventors: Satoshi Mashimo, Hajime Kakiuchi, Masayoshi Nakajima
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Patent number: 4772650Abstract: Tamper-resistant inner seals that bond firmly to the lips of lidded and capped glass and plastic containers. The innerseals incorporate a metallic foil having a heat-sealable adhesive applied to one surface thereof. The heat-sealable adhesive comprises a paraffin wax or blend of paraffin wax and microcrystalline wax, polystyrene or derivative thereof, rosin or derivative thereof, and at least one high molecular weight polymeric material selected from the group consisting of ethylene/acrylic acid copolymers, ethylene/vinyl acetate copolymers, ethylene/methacrylate copolymers, and ethylene/vinyl acetate/methacrylic acid terpolymers, and blends thereof.Type: GrantFiled: December 4, 1986Date of Patent: September 20, 1988Assignee: Minnesota Mining and Manufacturing Co.Inventor: David T. Ou-Yang
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Patent number: 4769406Abstract: A hot melt adhesive suitable for bonding plastic, metal, and glass together has been developed by blending together into a homogenous mixture 10 to 20 weight percent of ethylene/vinyl acetate/acid functional terpolymer resin of low acid number, 15 to 50 weight percent of ethylene/vinyl acetate/acrylic acid terpolymer resin of high acid number and 30 to 60 weight percent of tackifying resins based on alpha-methylstyrene, rosin, or a terpene resin. Additionally, suitable antioxidants and surfactants are added to control the aging and application of the composition.Type: GrantFiled: March 2, 1987Date of Patent: September 6, 1988Assignee: Essex Specialty Products, Inc.Inventor: Robert J. Keithley
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Patent number: 4767813Abstract: High solids aqueous based pressure sensitive adhesives may be prepared by directly emulsifying the tackifier resin into a polymeric latex provided the tackifier is heated, plasticized and emulsified and mixed with the latex on a high shear mixer. This gives an adhesive which is faster drying and gives comparable properties to lower solids adhesives.Type: GrantFiled: March 23, 1987Date of Patent: August 30, 1988Assignee: Polysar Financial Services S.A.Inventor: William T. Evitt
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Patent number: 4764535Abstract: Elastomer compositions suitable for use in foaming operations and elastomeric cellular products and processes of forming such products. The elastomer compositions comprise a mixture of two thermoplastic rubber compounds, at least one of which has a vinyl aromatic component and a higher aromaticity than the other rubber compound. The compositions also contains a nucleating agent which functions when gas is entrained in the molten elastomer formulation to enhance the neutrophilic structure of the elastomer. An unstable resin is also present in the elastomer compositions. This resin is oxidized or thermally decomposed as the foamed product is cured to produce a relatively nontactified skin. Cellular elastomeric products may be formed by incorporating an inert gas into the molten elastomer compositions by the use of gas infusing equipment or by the decomposition of blowing agents. The blowing agents may be supplied to the molten elastomer compositions entrained within a plasticizing oil.Type: GrantFiled: August 6, 1984Date of Patent: August 16, 1988Assignee: Q'SO, Inc.Inventor: Larry F. Leicht
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Patent number: 4752634Abstract: Disclosed are hot melt compositions having good resistance to flow at temperatures up to 100.degree. C. The compositions are homogenous blends, which consist essentially of (1) an ethylene--mono-unsaturated ester copolymer having a melt index from 2 to about 20, or an ethylene terpolymer having a melt index of from about 6 to about 20; (2) a heat resistant polymer having a crystalline melting point greater than 109.degree. C.; (3) a tackifier resin having a Ring and Ball (R&B) softening point of from about 85.degree. C. to about 110.degree. C.; and (4) a hydrocarbon wax. When the tackifier resin has a R&B softening point of 100.degree. C. to about 110.degree. C., a naphthenic oil must also be added. The compositions may also contain a finely divided inorganic filler when used as an adhesive to produce pile fabrics or for backcoating the primary backing of a tufted carpet. The compositions are useful in the manufacture of carpets.Type: GrantFiled: April 17, 1986Date of Patent: June 21, 1988Assignee: Hercules IncorporatedInventor: Raymond W. Goss
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Patent number: 4749739Abstract: Disclosed is a hot-melt adhesive composition capable of bonding paper to metal, glass and polyethylene terephthalate comprising an amorphous polymer selected from polypropylene or copoly(propylene-butene) having a propylene content of greater than 50%, a hydrocarbon tackifier resin, and a rosin tackifier. Preferably, the composition also contains a polyethylene wax.Type: GrantFiled: November 25, 1986Date of Patent: June 7, 1988Assignee: Eastman Kodak CompanyInventors: Bruce W. Foster, Larry W. Hilscher
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Patent number: 4748198Abstract: A coating material for protecting the surfaces of teeth is obtained by dissolving a resinous composition comprising 100 weight parts of a polystreyene resin or a high-impact polystyrene resin and 1 to 60 weight parts of rosin or a rosin derivative added thereto in an organic solvent. The resinous composition may further contain 1 to 100 weight parts of a chlorinated polymer and 1 to 100 weight parts of a coloring matter.Type: GrantFiled: April 17, 1987Date of Patent: May 31, 1988Assignee: G-C Dental Industrial Corp.Inventors: Masayuki Takahashi, Ryoji Nakazato
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Patent number: 4745140Abstract: Aqueous-based adhesive compositions having good adhesion to a non-polar polymeric surface and to cellulosic materials comprise a dispersion of an adhesive comprising an N-vinyl lactam polymeric resin, a tackifier for such adhesive, and an effective amount of an ethylene/vinyl acetate copolymer emulsion stabilizer for the resin and tackifier. Preferred N-vinyl lactam polymeric resins are vinyl pyrrolidone/vinyl acetate copolymers and a preferred class of tackifier are the rosin ester tackifiers.Type: GrantFiled: March 13, 1987Date of Patent: May 17, 1988Assignee: Chesebrough-Pond's Inc.Inventor: Jagadish C. Goswami
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Patent number: 4743238Abstract: A wetness indicating hot-melt adhesive which changes color in response to the presence of moisture is disclosed, which contains 20 to 70 wt. % of polymer, about 28 to 10 wt. % of which is water sensitive polymer; 25 to 60% of organic acid which is selected from a high acid fatty acid, or rosin acid, or a combination thereof; 0 to 40% of water soluble wax; 0 to 60 wt. % of glycerlo monostearate; 0 to 55 wt. % of hydrogenated castor oil; 0 to 15 wt. % of polyalkylene wax; 0 to 60 wt. % of compatible plasticizer; and a wetness indicating agent which changes the color of the composition in response to moisture therein. The time of response of the color change can be controlled from about one second to a somewhat larger value as desired.Type: GrantFiled: July 14, 1987Date of Patent: May 10, 1988Assignee: Malcolm Nicol & Co.Inventors: Herman Colon, Albery Maletsky
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Patent number: 4740536Abstract: This invention relates to ambient-curing water-based binder, coating and adhesive compositions. These compositions are prepared by mixing (1) an acidic first component containing an aqueous dispersion of polymer latex, said polymer being alkali-curable and polymerized from a monomer mixture containing quaternary ammonium monomer, and an epoxy resin, together with (2) an alkaline second component containing an amine curing reagent. The resulting mixture of the first and second components is alkaline, cures quickly at room temperature, and yields films with high film strength, durability, and excellent heat and water resistance.Type: GrantFiled: September 6, 1985Date of Patent: April 26, 1988Assignee: Rohm and Haas CompanyInventor: Yen-Yau H. Chao
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Patent number: 4739002Abstract: Cross-linking type adhesive compositions comprising (A) polymers having .alpha.,.beta.-unsaturated carboxylate groups, (B) materials having polymerizable vinyl groups, which contain an acrylic and/or methacrylic acid, (C) thermoplastic resins and (D) catalysts of organic peroxides and/or photosensitizers. The adhesive compositions have good adhesive properties together with an excellent heat aging resistance, and can be applied for adhesion to organic and inorganic substrates.Type: GrantFiled: June 17, 1986Date of Patent: April 19, 1988Assignee: Bridgestone CorporationInventors: Hikaru Ishikawa, Toshio Honda, Kazuo Naito, Yukio Fukuura
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Patent number: 4734447Abstract: An improved hot-melt adhesive which comprises a styrene block copolymer resin, a tackifier and a modified polybutene which is solid at room temperature, said hot-melt adhesive having excellent durable adhesion strength, cold resistance and heat resistance with improved open time, and a tackifier composition suitable for the preparation of the hot-melt adhesive.Type: GrantFiled: September 2, 1986Date of Patent: March 29, 1988Assignee: Sunstar Giken Kabushiki KaishaInventors: Yoshiya Hattori, Toshimori Sakakibara
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Patent number: 4731401Abstract: A polyolefin resin composition comprising a polyolefin resin and, blended therewith, (A) 10 to 40 wt % of a styrene type resin and (B) 0.5 to wt % of one or more members selected from among rosin, derivatives of rosin and petroleum resins is provided. This composition is excellent in adhesion to a cast foamed polyurethane, etc. and capable of forming a molding product with a low molding shrinkage.Type: GrantFiled: October 3, 1986Date of Patent: March 15, 1988Assignee: Chisso CorporationInventors: Tsutomu Moteki, Kazuo Aoki, Kazuhiro Kimura
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Patent number: 4728688Abstract: In two-short perfect binding of books, excellent results in terms of binding strengths, cold flow and cold crack properties, ink solvent resistance and thermal degradation susceptibility may be achieved using as a first adhesive a water based primer, e.g. a synthetic rubber latex emulsion, and as a second adhesive a hot-melt adhesive comprising a segmented monoalkene-vinyl acetate copolymer, e.g. a segmented ethylene-vinyl acetate copolymer optionally in admixture with at least one other ethylene-vinyl acetate copolymer.Type: GrantFiled: December 4, 1985Date of Patent: March 1, 1988Assignee: Swift Adhesives LimitedInventors: Richard E. Tizzard, George C. Thomas
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Patent number: 4728684Abstract: A polyurethane adhesive comprising(a) a thermoplastic polyester urethane rubber which is grafted with at least one of the compounds selected from the group consisting of acrylic acid, an acrylic ester, methacrylic acid and a methacrylic ester,(b) a chlorinated rubber, and(c) an isocyanate compound as a crosslinking agent, and optionally(d) a polyoxyalkylene ether polyol having 2 or more ether groups in the molecule, and/or(e) a rosin resin and/or a rosin resin derivative,which is an organic solvent solution type, and exhibits excellent adhesion particularly in case that at least one of the substances to be adhered is a soft polyvinyl chloride sheet or film.Type: GrantFiled: January 27, 1986Date of Patent: March 1, 1988Assignee: Sunstar Giken Kabushiki KaishaInventors: Toshio Kadowaki, Masahito Mori, Masaaki Soh, Koichiro Sanji
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Patent number: 4725637Abstract: A process for producing a thermoplastic elastomer comprising dynamically curing with a peroxy curing agent (A) nitrile rubber and (B) homopolymer or copolymer of ethylene, which is curable with the peroxy curing agent but excluding copolymers comprising ethylene and an acrylic or methacrylic ester. The thermoplastic elastomer composition produced by the process is suitable for use in sealant or adhesive compositions, particularly when blended with a tackifying resin.Type: GrantFiled: April 18, 1986Date of Patent: February 16, 1988Assignee: BP Chemicals LimitedInventors: Alan Fernyhough, Sidney G. Fogg
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Patent number: 4719261Abstract: A purpose of the disclosed method is to impart gathers and elasticity to a relatively inelastic film, membrane, or web substrate, through elastic banding with a viscoelastic hot melt pressure-sensitive adhesive (PSA). Typically, the resulting elastic-banded substrate product (e.g. 40) will be cut into discrete units and formed into garments or body-encircling members such as disposable diapers. One step of the preferred method involves extruding a ribbon or band (13 or 113) comprising a viscoelastic hot melt PSA, which PSA has unusually high cohesion, stretchiness, and elasticity without excessive loss of adhesive bonding strength. (The viscoelastic behavior of the PSA is believed to be determined, at least in part, by the relative size of its crystalline domains and its rubbery domains and the glass transition temperatures and softening points of its components.Type: GrantFiled: March 26, 1981Date of Patent: January 12, 1988Assignee: H. B. Fuller CompanyInventors: William L. Bunnelle, Richard C. Lindmark, Jr.
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Patent number: 4717749Abstract: A pressure sensitive adhesive composition is provided. The adhesive comprises an ABA block polymer wherein A represents a copolymer of styrene and alpha-methylstyrene and B represents blocks of diene polymer. The diene polymer can be butadiene, isoprene or a mixture thereof. The composition also contains a tackifying resin.Type: GrantFiled: August 22, 1985Date of Patent: January 5, 1988Assignee: The Dow Chemical CompanyInventors: Raymond W. Tang, Lu H. Tung
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Aqueous emulsion coating for individual fibers of a cellulosic sheet providing improved wet strength
Patent number: 4714727Abstract: A basic aqueous emulsion composition that can be used as a treatment for cellulosic sheets or articles made of cellulosic fibers to provide improved water resistance by forming a discrete coating on the individual fibers that make up the sheet while not substantially limiting the compatibility of the treated sheet with aqueous glues, dyes or inks comprising a major proportion of water, a mixture of wax and rosin, an emulsion stabilizer and a chelating agent.Type: GrantFiled: July 25, 1984Date of Patent: December 22, 1987Assignee: H. B. Fuller CompanyInventor: Robert M. Hume, III -
Patent number: 4711919Abstract: The present invention relates to mixtures of water-soluble synthetic anionic polymers consisting of at least 80%-wt. acrylamide and/or methacrylamide and sizing media based on partly or totally saponified natural resins as well as the use of such mixtures in the production of paper and cardboard in order to reduce the absorbency and improve the dry strength of these products.Type: GrantFiled: February 13, 1985Date of Patent: December 8, 1987Assignee: Chemische Fabrik Stockhausen GmbHInventors: Reinmar Peppmoller, Friedlieb Koschier
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Patent number: 4699938Abstract: A pressure-sensitive adhesive composition comprising as a base polymer a mixed block copolymer comprising a polymer block of a monovinyl-substituted aromatic compound and a polymer block of a conjugated diene compound. The pressure-sensitive adhesive composition is useful to seal, for example, corrugated board or carton.Type: GrantFiled: April 4, 1986Date of Patent: October 13, 1987Assignees: Nitto Electric Industrial Co., Ltd., Japan Synthetic Rubber Co., Ltd.Inventors: Yoshihiro Minamizaki, Yoshio Miki, Takayuki Yamamoto, Akira Iio, Toshinori Sakagami
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Patent number: 4681576Abstract: A wetness indicating hot-melt adhesive which changes color quickly in response to the presence of moisture is disclosed which contains 20 to 70 wt. % of polymer, 35 to 100 wt. % of which is water sensitive polymer; 27 to 60 wt. % of organic acid which is selected from a high acid number fatty acid or a combination of a high acid number fatty acid and other high acid number organic acids; 0 to 30 wt. % of water soluble wax and a wetness indicating agent which changes the color of the composition rapidly in response to moisture therein.Type: GrantFiled: March 17, 1986Date of Patent: July 21, 1987Assignee: Malcolm Nicol & Co.Inventors: Herman Colon, Albert Maletsky
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Patent number: 4670335Abstract: A blanking strip, made of paper or film, for the partial blanking of objects to be electroplated, such as printed circuit boards, coated with an adhesive composition based on a plastomer, a hard resin and a plasticizer.Type: GrantFiled: November 12, 1985Date of Patent: June 2, 1987Assignee: Beiersdorf AktiengesellschaftInventor: Klaus Grah
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Patent number: 4654388Abstract: An adhesive composition comprising an aqueous dispersion of film forming resin, filler and tackifying substances. The dispersion uses wood rosin and esterified rosin as tackifying substances and also includes diethylene glycol monobutyl ether. The compositions are specially formulated to avoid use of the more volatile organic solvents which are undesirable for flammability or health reasons. The compositions are particularly suitable for use as nonflammable floor laying adhesives by methods in which porous flooring material is laid onto the wet adhesive layer or non-porous flooring material is laid onto the "semi-dry" adhesive layer.Type: GrantFiled: August 19, 1985Date of Patent: March 31, 1987Assignee: USM CorporationInventor: Per-Erik Lofgren