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: 5534575Abstract: Hot melt adhesives which include at least 5% of a thermoplastic elastomer block copolymer having a Vicat softening temperature of at least 60.degree. C. and a melting point of at least 100.degree. C., have improved thermal resistance properties and can be applied with conventional hot melt application equipment at temperatures of between about 149.degree. C. and about 204.degree. C. The adhesives are particularly suited to use in above-the-belt locations in automobile interiors and in furniture bonding. Especially suitable thermoplastic elastomers are polyether-polyester and polyether-polyamide segmented polymers with melting points above 149.degree. C. Hot melt adhesives based on these thermoplastic elastomers can be formulated to provide a range of properties including pressure sensitive properties and contact adhesive properties.Type: GrantFiled: January 30, 1995Date of Patent: July 9, 1996Assignee: H. B. Fuller Licensing & Financing, Inc.Inventors: Mary E. Foster, Eugene R. Simmons, Lowell G. Lindquist, William L. Bunnelle
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Patent number: 5530040Abstract: A traction composition is comprised of a lignin-based phenolic compound, a silicone resin, a rosin and a suitable carrier. The traction composition may be applied to the surfaces of wet or dry vehicle tires to impart anti-slip properties thereto. In accordance with the present invention, the anti-slip properties have increased durability so that the tires have good traction over a longer distance of travel.Type: GrantFiled: April 14, 1995Date of Patent: June 25, 1996Inventor: Donald B. Ross
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Patent number: 5527845Abstract: A hot melt adhesive composition is described which possesses properties which are desirable with respect to the construction of disposable articles. The adhesive composition includes about 10% to about 80%, by weight, of an alkali soluble polymer; about 0 to about 30%, by weight, of a poly (vinyl methyl ether); about 30% to about 70%, by weight, of a tackifying resin; and about 5% to about 30%, by weight, of a suitable plasticizer.Type: GrantFiled: July 15, 1993Date of Patent: June 18, 1996Inventors: Diane Strelow, Mark Alper
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Patent number: 5512622Abstract: A resinous binder formulation is disclosed which relates to binders containing dilution-enhancing polymers for "letdown" metal resinate vehicles in publication gravure printing inks. The resinous binder comprises a metal resinate, and a dilution-enhancing polymer selected from the group consisting of polymers of maleic anhydride and ethylene and polymers of acrylonitrile, butadiene, acrylic acid and/or methacrylic acid. The dilution-enhancing polymer being present in the resinous binder in an amount which is effective to increase the dilution of the resinous binder in aromatic and nonaromatic solvents.Also disclosed is a publication gravure ink comprising a mixture of a solvent, a colorant and the resinous binder.Type: GrantFiled: November 17, 1994Date of Patent: April 30, 1996Assignee: Hercules IncorporatedInventors: Frank P. Tise, Jennifer Weatherdon
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Patent number: 5504130Abstract: 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: GrantFiled: September 1, 1994Date of Patent: April 2, 1996Assignee: General Electric CompanyInventor: Geoffrey H. Riding
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Patent number: 5504127Abstract: The present invention relates to monoesters of rosin acids which are useful as a total or partial replacement for extender or processing oil in rubber formulations. Addition of these monoesters of rosin acid improve the modulus and tear of the vulcanizate. The monoesters are of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different hydrocarbon radicals selected from the group consisting of saturated alkyl and cycloalkyl radicals containing 3 to 20 carbon atoms, aryl radicals containing 6 carbon atoms and aralkyl radicals containing 7 to 20 carbon atoms.Type: GrantFiled: April 10, 1995Date of Patent: April 2, 1996Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson G. Wideman, Paul H. Sandstrom
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Patent number: 5500293Abstract: The invention provides an adhesive composition suitable for use in an insulating tape having improved plasticizer resistance, comprising from about 13 to about 42 of a polyisoprene homopolymer, from about 13 to about 42 of a styrene-isoprene-styrene copolymer, from about 25 to about 55 of an aliphatic tackifying agent containing from about 4 to about 6 carbon atoms, and from about 2 to about 20 of an end block reinforcing resin.Type: GrantFiled: February 5, 1993Date of Patent: March 19, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Felix P. Lau, Timothy D. Bredahl, George E. Cox
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Patent number: 5476896Abstract: Water-based contact adhesives comprising:(1) a carboxylated polychloroprene latex which provides elastomeric properties;(2) a carboxylated poly(vinyl acetate-ethylene) aqueous emulsion which provides toughness to the adhesive;(3) a tackifier resin dispersion;(4) an organic or water soluble crosslinking agent for the carboxyl functionality of the polychloroprene and poly(vinyl acetate-ethylene); and(5) optionally an adhesion promoter.Type: GrantFiled: August 30, 1994Date of Patent: December 19, 1995Assignee: Borden, Inc.Inventors: Maria A. Pereira, Rajaraman Iyer
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Patent number: 5466735Abstract: An aqueous emulsion comprising a copolymer comprising ethylene, vinyl chloride, and vinyl acetate and having a glass transition temperature of from -15.degree. to 35.degree. C., an emulsion of a rosin ester having a softening point of from 110.degree. to 150.degree. C. and a Gardner color scale of not higher than 5, and an emulsion of a wax having a melting point of from 50.degree. to 100.degree. C., and an easily macerating water-proof paper obtained by coating the aqueous emulsion on at least one surface of a base paper. The paper coated with the aqueous emulsion has excellent moisture-proof property, water repellency, and easily macerating property, and does not cause blocking.Type: GrantFiled: April 8, 1993Date of Patent: November 14, 1995Assignee: Sumitomo Chemical Co., Ltd.Inventors: Akitoshi Takahira, Yuuzi Yoshii
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Patent number: 5455293Abstract: A rapid hardening, solvent-free water-based adhesive composition includes an amount of an aqueous latex dispersion of polyester-polyurethane synthetic resin, an amount of rosin acid ester hardener, an amount of a thickener together with an amount of inert filler and an amount of a plasticizer/extender in sufficient water to adjust the percent solids to the desired amount. Optionally, the adhesive composition also includes an amount of polyisocyanate cross-linker to provide additional environmental stability.Type: GrantFiled: June 6, 1994Date of Patent: October 3, 1995Inventors: Benny R. Wood, Howard Burchett, Jr.
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Patent number: 5454909Abstract: A low-density hot melt adhesive is disclosed. Low-density filler, preferably hollow glass microspheres, is added to a hot melt adhesive to provide a hot melt adhesive having a specific gravity preferably between 0.7 and 0.93. The low-density hot melt adhesive is more effectively separated from cellulosic materials such as cardboard and kraft paper during recycling operations which separate contaminants such as adhesives from cellulosic fibers based upon the density of the adhesive.Type: GrantFiled: September 1, 1994Date of Patent: October 3, 1995Assignee: The Dexter CorporationInventor: Paul L. Morganelli
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Patent number: 5444109Abstract: The present invention relates to monoesters of rosin acids which are useful as a total or partial replacement for extender or processing oil in rubber formulations. Addition of these monoesters of rosin acid improve the modulus and tear of the vulcanizate. The monoesters are of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different hydrocarbon radicals selected from the group consisting of saturated alkyl and cycloalkyl radicals containing 3 to 20 carbon atoms, aryl radicals containing 6 carbon atoms and aralkyl radicals containing 7 to 20 carbon atoms.Type: GrantFiled: June 7, 1993Date of Patent: August 22, 1995Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson G. Wideman, Paul H. Sandstrom
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Patent number: 5441999Abstract: The foregoing and other objects and advantages of the present invention are accomplished by a hot melt adhesive comprising a blend of a low molecular weight polyolefin, olefin-carboxylic acid graft polymer or olefin-maleic anhydride graft polymer or blend thereof; a propylene-ethylene copolymer or propylene-ethylene-butene terpolymer; and a tackifying resin or blend of tackifying resins. The blend can include an antioxidant or blends of antioxidants, a high molecular weight or functionalized polyolefin or a copolymer or terpolymer of a vinyl monomer (e.g., ethylene/vinyl acetate).Type: GrantFiled: October 15, 1993Date of Patent: August 15, 1995Assignee: Reichhold Chemicals, Inc.Inventors: Neil R. Jarvis, Anil B. Goel
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Patent number: 5439963Abstract: This invention relates to a highly tacky pressure sensitive adhesive having superior high temperature properties. The adhesive is formed of about 50-100 parts of a diblock copolymer and about 0-50 parts of a linear or radial triblock copolymer, a tackifier and a curing agent. The adhesive thus formed can be coated on a backing to form a tape and then vulcanized in situ to provide a precured or prevulcanized adhesive tape having high temperature properties and superior tack properties.Type: GrantFiled: January 9, 1995Date of Patent: August 8, 1995Assignee: PermacelInventor: Ralf Korpman
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Patent number: 5416151Abstract: A polymer composition substantially comprising(A) 5 to 40 weight parts of a 1-butenic polymer,(B) 95 to 60 weight parts of an inorganic filler,(C) a hydrocarbonic oil in an amount of 2 to 20 weight parts per 100 weight parts in total of the above (A) and (B), and(D) a thermoplastic resin other than 1-butenic polymers in an amount of 0 to 20 weight parts per 100 weight parts in total of the above (A) and (B).Type: GrantFiled: September 20, 1993Date of Patent: May 16, 1995Assignee: Mitsui Petrochemical Industries, Ltd.Inventor: Haruhiko Tanaka
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Patent number: 5414039Abstract: A composition is which, when added to an ethylene vinyl acetate copolymer having 40 to 60 weight percent of vinyl acetate units, renders a repulpable hot melt adhesive comprises a tackifier and an oxygen-containing polymer. The oxygen-containing polymer may be either (i) a high molecular weight carboxylic acid; (ii) a ethylenically unsaturated cyclic anhydride graft polyolefin or (iii) a primary linear polymeric alcohol of the formulaA-Bwherein A is represented by a unit of the formula ##STR1## and B is represented by a unit of the formula ##STR2## where R and R.sub.1 are independently selected from the group consisting of hydrogen and a C.sub.1 -C.sub.10 alkyl group; R.sub.2 is hydrogen or a C.sub.1 -C.sub.5 alkyl group; x is greater than or equal to 1 but less than 70; and y is between 0 about 45; provided the weight ratio of B/A+B is between 0 and 50 percent. The molecular weight of the alkyl unit of the oxygen-containing polymer is less than 2,000.Type: GrantFiled: February 16, 1993Date of Patent: May 9, 1995Assignee: Petrolite CorporationInventors: Michael D. Watson, William P. Cottom, Susan M. Teeters, Charles H. Heroux, Terrance D. Duryee
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Bookbinding adhesives; processes for production of bookbinding adhesives; and methods of bookbinding
Patent number: 5401791Abstract: It has been discovered that certain hot melt adhesive formulations can be produced which exhibit superior lay-flat properties when used as bookbinding adhesives. The formulations incorporate copolymers of ethylene and unsaturated esters. The resulting bookbinding adhesives have viscosities of 2,000 to 8,000 cps at 177.degree. C. The bookbinding adhesives are found to impart lay-flat properties to books when the adhesives have a tensile to elongation ratio of .ltoreq.1.45.Type: GrantFiled: December 3, 1992Date of Patent: March 28, 1995Assignee: Exxon Chemical Patents Inc.Inventor: Robert R. Milks -
Patent number: 5401792Abstract: Sprayable hot-melt adhesive compositions are disclosed comprising (A) styrenic block copolymer, (B) tackifying resin, and (C) ethylene copolymer. Methods of preparing and using said compositions are also disclosed.Type: GrantFiled: November 10, 1993Date of Patent: March 28, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gaddam N. Babu, Dennis D. Hansen
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Patent number: 5382615Abstract: Hot-melt adhesive compositions useful for packaging are disclosed. These hot-melt adhesive compositions are based on modified polyethylene and contain an ethylene-alkylacrylate copolymer, a polyethylene graft copolymer, a tackifying resin, and a high-melting low viscosity wax. The hot-melt adhesive compositions disclosed have fast setting times and a novel combination of desired properties with good high and low temperature bond strength.Type: GrantFiled: October 1, 1993Date of Patent: January 17, 1995Assignee: Eastman Chemical CompanyInventor: Darryl A. Godfrey
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Patent number: 5371136Abstract: The invention provides a water based mixture of a rubber latex and a resin emulsion containing ground rubber which provides a high adhesion coating having excellent air bleed when coated on an uncured rubber article which is thereafter cured or vulcanized.Type: GrantFiled: April 5, 1993Date of Patent: December 6, 1994Assignee: Wacker Silicones CorporationInventors: Howard L. Brooks, George M. Hart, Jaimini R. Vora
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Patent number: 5360855Abstract: A novel 2-substituted butadiene block copolymer is provided which provides adhesives having superior adhesion and tolerance to oil contaminated surfaces. The elastomeric block has a glass transition temperature of less than about minus 65.degree. C. with the 2 substituent being an alkyl group.Type: GrantFiled: June 22, 1993Date of Patent: November 1, 1994Assignee: Minnesota Mining & Manufacturing CompanyInventor: Ramsis Gobran
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Patent number: 5360854Abstract: The present invention is directed to a low viscosity, high tensile strength adhesive of the hot melt pressure sensitive type composition comprising:(a) from about 15 to about 30% by weight of an A-B-A block or A-B-A-B-A-B- multi-block copolymer containing from about 35 to about 55 parts styrene per 100 parts polymer where polymer blocks A are styrene blocks and polymer blocks B are butadiene or hydrogenated butadiene;(b) 70 to about 85% by weight to a composition tackifying resin; and(c) 0.1 to about 1.5% by weight of a stabilizer. Because the adhesive of the present invention has low viscosity and high tensile strength at both high and low temperatures, the adhesive formulation of the present invention is particularly well-suited to disposable diaper construction, hinge binding in books, PET bottle labeling, and attaching base cups to PET beverage bottles.Type: GrantFiled: May 17, 1993Date of Patent: November 1, 1994Assignee: Adhesive Technology, Inc.Inventor: Frank A. Bozich, Jr.
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Patent number: 5359006Abstract: 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: March 22, 1993Date of Patent: October 25, 1994Assignee: Amoco CorporationInventors: Matthew A. Kulzick, Wayne R. Pretzer, Tsuei-Yun Lynch, Paul A. Koning
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Patent number: 5340863Abstract: Hot melt adhesive compositions which include a base polymer constituent, a tackifying constituent, a wax constituent, and which further includes a low molecular weight polyethylene copolymer constituent which includes ketone functional moieties and/or hydroxyl functional moieties wherein the hot melt adhesive composition may be further characterized as providing improved adhesive strength to polar and non-polar substrates.Type: GrantFiled: October 4, 1993Date of Patent: August 23, 1994Assignee: AlliedSignal, Inc.Inventor: Lawrence Krutzel
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Patent number: 5331038Abstract: The invention is an adhesive which comprises a linear hydrogenated tri-block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene which has a coupling efficiency of 45% or greater and which has a peak molecular weight of from 50,000 to 150,000. For purposes of determining the concentration of the other components, the polymer is present in an amount of 100 parts rubber (phr). The adhesive further comprises from 30 to 110 phr of an endblock resin, a low molecular weight vinyl aromatic hydrocarbon, preferably alpha methyl styrene or styrene. Finally, the adhesive comprises from 80 to 210 phr of a hydrogenated hydrocarbon resin having a softening point below 35.degree. C.Type: GrantFiled: September 28, 1992Date of Patent: July 19, 1994Assignee: Shell Oil CompanyInventor: Steven H. Dillman
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Patent number: 5330829Abstract: An elastomeric composition is prepared containing an amorphous propylene/hexene copolymer and an elastomer selected from styrene butydiene styrene block copolymers.Type: GrantFiled: November 15, 1993Date of Patent: July 19, 1994Assignee: Eastman Chemical CompanyInventor: Richard A. Miller
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Patent number: 5314940Abstract: Disclosed are high wet-friction, highly adherent, non-abrasive elastomeric compositions producing smooth, slip-resistant coatings on surfaces, containing as primary components a thermoplastic rubber block copolymer and a petrolatum, and optionally independently including a plasticizer such as a hydrogenated polybutene, a tackifier such as polyisobutylene or a hydrocarbon resin, an antioxidant or a UV light absorber, in a carrier organic solvent, and containing no abrasive filler or particulate additives.Type: GrantFiled: June 22, 1992Date of Patent: May 24, 1994Inventor: Donald D. Stone
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Patent number: 5312850Abstract: Hot melt adhesive compositions are prepared from 20 to 98% by weight of a polylactide homo- or copolymer containing at least 20 molar percent of the lactide component; 2 to 80% by weight of a polar tackifier having a Ring and Ball softening point (as described by ASTM E-26) greater than about 60.degree. C.; 0 to 50% by weight of a plasticizer; 0 to 30% by weight of a wax diluent; 0-3% by weight of a stabilizer; and 0-20% of starch. By utilizing a naturally occurring, thermoplastic, biodegradable copolymer as the base polymer, these adhesives advance the state of the art of hot melt adhesives by alleviating the dependence on petroleum based materials and by allowing for the development of hot melt adhesives which either degrade naturally after coming in contact with the soil or which can be composted.Type: GrantFiled: January 4, 1993Date of Patent: May 17, 1994Assignee: National Starch and Chemical Investment Holding CorporationInventors: Carmine P. Iovine, Thomas F. Kauffman, Jules E. Schoenberg, Paul P. Puletti
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Patent number: 5310803Abstract: A hot-melt composition comprising an ethylene/vinyl acetate copolymer, an ethylene/n-butyl acrylate copolymer, and a tackifying resin can be spread into a thin layer that has a limited open time of at least 5 seconds. The composition eventually crystallizes to form a creep-resistant bond.Type: GrantFiled: December 17, 1991Date of Patent: May 10, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: Dennis D. Hansen
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Patent number: 5302649Abstract: There are provided a pressure-sensitive adhesive and other compositions which free radical cured mixtures in which a halogenated hydrocarbon was present during free radical cure, of at least one unsaturated elastomeric polymer and at least one organic additive which is substantially nonresponsive to the action of free radicals and present in an amount sufficient to modify the properties of the cured elastomeric polymer.Type: GrantFiled: December 14, 1989Date of Patent: April 12, 1994Assignee: Avery Dennison CorporationInventors: Yukihiko Sasaki, Kevin Lossner
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Patent number: 5300548Abstract: Disclosed herein are a novel graft copolymer comprising a stock copolymer (A) of at least one monomer selected from esters of unsaturated carboxylic acids and vinyl esters (a), ethylene (b) and carbon monoxide (c), and a polyamide oligomer having a primary amino group at one end of its molecule (B) grafted on said stock copolymer, and a process for the preparation thereof. The proposed graft copolymer, when used as an adhesive, in particular for adhesion of polyvinyl chloride, exhibits excellent heat resistance and adhesion properties.Type: GrantFiled: October 27, 1992Date of Patent: April 5, 1994Assignee: Du Pont-Mitsui Polychemicals Co., Ltd.Inventors: Hideo Akimoto, Shiro Narasaki, Reiji Miyamoto
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Patent number: 5294352Abstract: A composition for the detackification and clarification of acid and alkaline paint and lacquer waste waters and paint spray booth wastes, comprising:an inorganic-organic and/or organic adduct alloy polymer composition having the formula:A.multidot.B.sup.+ .multidot.D.sup.+wherein:A=[(SiO.sub.2 /Me.sup.I.sub.2 O).sub.u Me.sup.II.sub.m Me.sub.m.sup.III(OH) p.sup.(SO 4.sup.) y.sup.(Aci) (2m+3n)-p-2y].sub.4wherer=1 to 98% bw;u=0 to 10% bw; ##STR1## where: x=0 to 98% bw; Z is a divalent substituted or unsubstituted aliphatic, cycloaliphatic, heterocyclic or aromatic radicalD.sup.+ (PQAM).sub.wwherew=2 to 98% b.w. of polyquaternized polymer (PQAM)Me.sub.m.sup.II is selected from the divalent cationic group comprising: Mg, Zn, Ca, and Fe.sup.2+m=0 to 5Me.sub.n.sup.III is a tri-or more valent metal selected from the group comprising: Fe, Al, and Al-Zn complexes;n=1 to 20Aci is selected from the monovalent anionic group comprising Cl.sup.-, Br.sup.-, I.sup.-, NO.sub.3 --, H.sub.2 PO.sub.4 --, CH.sub.3 COO.sup.-, OH.Type: GrantFiled: April 15, 1993Date of Patent: March 15, 1994Inventor: John J. Waldmann
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Patent number: 5290842Abstract: A pressure sensitive adhesive of a mutually immiscible first elastomer (styrene-butadiene block copolymer) exhibiting a first glass transition temperature and a second elastomer (e.g., a styrene-isoprene-styrene block copolymer) exhibiting a second glass transition temperature greater than the first is tackified by a tackifying system comprising tackifier preferentially miscible with the second elastomer to provide a dynamic mechanical spectrum plot of tangent delta versus temperature in .degree.C. showing two separate and distinct glass transition temperature peaks. The mixture exhibits excellent processability and ambient and low temperature adhesive properties.Type: GrantFiled: July 27, 1992Date of Patent: March 1, 1994Assignee: Avery Dennison CorporationInventors: Yukihiko Sasaki, Jesse Ercillo
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Patent number: 5286781Abstract: Disclosed herein is a pressure sensitive adhesive composition comprising 100 parts by weight of at least one block copolymer selected from the group consisting of block copolymers represented by the general formula A-B-A and block copolymers represented by the general formula A-B, wherein A means a styrene polymer block and B denotes a butadiene polymer block, an isoprene polymer block or a polymer block obtained by hydrogenating these polymers, 100-200 parts by weight of a tackifying resin and 25-200 parts by weight of a polyolefin. Pressure sensitive adhesive tapes or sheets comprising, as a pressure sensitive adhesive layer, the pressure sensitive adhesive composition are also disclosed.Type: GrantFiled: April 14, 1992Date of Patent: February 15, 1994Assignee: Sekisui Chemical Co., Ltd.Inventors: Masahiko Gotoh, Shigehisa Kobayashi, Kazuhiro Kawabata
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Patent number: 5270360Abstract: 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: GrantFiled: January 3, 1992Date of Patent: December 14, 1993Assignee: Yates Manufacturing CompanyInventor: Paul Solomon
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Patent number: 5264476Abstract: An olefinic resin composition which is moldable to shaped articles coatable with coating compositions without primers is prepared by blending (A) a cross-linked olefinic thermoplastic elastomer obtained from a homo- or co-polymer of alpha-olefin (C.sub.2-20) and elastomeric copolymer composed of alpha-olefins (C.sub.2-20), (B) a low-molecular weight modified polypropylene having Mn of 2,000-20,000 which is grafted with maleic anhydride and (C) a tackifier.Type: GrantFiled: December 17, 1992Date of Patent: November 23, 1993Assignee: Sumitomo Chemical Company, LimitedInventors: Akio Daimon, Koichiro Ibuki
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Patent number: 5252393Abstract: The present invention is concerned with a thermal delayed tack composition which is non-adhesive at ordinary temperatures but can be activated and tackified when heated and can maintain its tackiness for a long period of time even after separated from a heat source, and thermal delayed tack sheets prepared by coating basic sheets with this thermal delayed tack composition and then drying the same. The thermal delayed tack sheets have the features that even when they are wound into a roll or superimposed upon each other, no blocking or sticking occurs, and that the tackiness thereof can be maintained for a long period of time even upon a plastic material such as for example polyethylene having low polarity.Type: GrantFiled: May 5, 1992Date of Patent: October 12, 1993Assignee: Mitsubishi Paper Mills Ltd.Inventors: Nobuhiro Kagota, Hirokazu Tsukahara
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Patent number: 5246998Abstract: The present invention relates to dicyclopentadiene alcohol resin acid derivatives which are useful as a rubber additive. In one embodiment, the ester linked rosin acid derivative may serve as a total or partial replacement for oil and/or wax. The dicyclopentadiene alcohol rosin acid derivatives are prepared by reacting abietic acid and/or dehydroabietic acid with dicyclopentadiene alcohol under esterification conditions.Type: GrantFiled: April 24, 1992Date of Patent: September 21, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson G. Wideman, Paul H. Sandstrom, Denise J. Keith
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Patent number: 5242984Abstract: A predominantly linear sequentially polymerized styrene-isoprene-styrene block copolymer composition having a styrene content of from about 17% to about 25% and a diblock content of less than 4% of linear polymeric blocks for use in adhesives.Type: GrantFiled: July 29, 1991Date of Patent: September 7, 1993Assignee: Shell Oil CompanyInventors: Steven H. Dillman, Jeffrey G. Southwick
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Patent number: 5234987Abstract: A solvent-based adhesive composition for adhering together roofing materials, such as synthetic EPDM rubber sheets, which provides long term storage stability is provided. The adhesive composition includes a halogenated copolymer of isobutylene and p-methyl styrene, a thermoplastic rubber comprising a styrene-ethylene-butylene-styrene block copolymer, an endblock resin for the thermoplastic rubber, a tackifier, an accelerator/cure package, and a solvent. The cured composition exhibits a peel strength of at least 3.0 pounds per lineal inch at room temperature, at least 3.0 pounds per lineal inch at 212.degree. F., supports a static load of at least 0.67 pounds at 158.degree. F. for a minimum of 24 hours, and exhibits a viscosity increase of less than 1500 centipoise after aging at 130.degree. F. for six weeks.Type: GrantFiled: July 6, 1992Date of Patent: August 10, 1993Assignee: Adco Products, Inc.Inventors: Michael J. Hubbard, Brian J. Briddell, Dennis K. Fisher
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Patent number: 5225470Abstract: 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 those 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: February 22, 1991Date of Patent: July 6, 1993Assignee: Monssanto CompanyInventor: Paul A. Mancinelli
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Patent number: 5219912Abstract: An emulsified alkenylsuccinic acid sizing agent having a solid content of not less than 25% by weight is disclosed, which comprises a composition having not less than 25 parts by weight of alkenylsuccinic acid derived from the reaction product of a branched internal olefin of 12-18 carbon atoms with maleic anhydride, and being dispersed in water with an anionic polymer type dispersant or with an anionic polymer type dispersant and an emulsifier.Type: GrantFiled: July 10, 1991Date of Patent: June 15, 1993Assignee: Mitsubishi Oil Co., Ltd.Inventors: Yoshio Takahashi, Junji Okazaki, Hideto Umekawa, Toshihiro Tahara
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Patent number: 5196468Abstract: An essentially solvent-free adhesive composition containingA) an aqueous acrylate latex andB) 30 to 150% by weight, based on the solids content of the acrylate latex A), of a mixture ofb1) 50 to 95% by weight, based on the mixture, of at least one tackifying resin andb2) 5 to 50% by weight, based on the mixture, of a compound of the formula IR.sup.1 --O--(X--O).sub.n --R.sup.2where X is alkylene of 2 to 4 carbons, n is an integer from 1 to 8 and R.sup.1 and R.sup.2 are each hydrogen or aryl or alkaryl of 6 to 12 carbon atoms, where R.sup.1 and R.sup.2 are not both hydrogen,is prepared as described and used as adhesive for floor coverings.Type: GrantFiled: December 3, 1991Date of Patent: March 23, 1993Assignee: BASF AktiengesellschaftInventors: Thomas Schwerzel, Peter Fickeisen, Hans J. Neumann
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Patent number: 5189089Abstract: A resinous binder is disclosed which is composed of a metal rosin resinate and a dilution increasing effective amount of a poly(ethylene-vinyl acetate) type polymer having greater than 50,000 weight average molecular weight.Also disclosed is a gravure printing ink which comprises a solvent, a colorant and a binder system wherein all or a portion of the binder system consists of the resinous binder of this invention. The use of the resinous binder of this invention in ink compositions results in significant dilution improvement without adversely affecting other desirable properties.Also disclosed is a method for the preparation of a resinous binder having a toluene dilution value of at least 85 mls measured from a concentration of 50% solids to a viscosity of 7.5 centipoise wherein a metal oxide or metal hydroxide of zinc, calcium, sodium, potassium or magnesium is reacted with a rosin or modified rosin and a poly(ethylene-vinyl acetate) type polymer having a weight average molecular weight of at least 50,000.Type: GrantFiled: August 31, 1990Date of Patent: February 23, 1993Assignee: Union Camp CorporationInventors: Samuel D. Hollis, Thomas Y. J. Shiah
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Patent number: 5175201Abstract: Disclosed are novel nitrogen containing heterocyclic compounds and novel vinyl terminated polyurethane/polyamide polymers together with the use of both of these compounds in a novel adhesive and coating composition. The nitrogen containing heterocyclic compounds of the invention contain two vinyl-terminated substituents and at least one carbamylmethyl substituent and have a nucleus selected from melamine, oligomers of melamine, benzoguanamine, and oligomers of benzoguanamine, glycoluril and oligomers of glycoluril. The vinyl terminated polyurethane compounds of the invention have a molecular weight of from about 3000 to about 80000, and contain at least two vinyl end groups.Type: GrantFiled: October 31, 1988Date of Patent: December 29, 1992Assignee: American Cyanamid CompanyInventors: Peter S. Forgione, Yuhshi Luh, Balwant Singh, William A. Henderson, Jr.
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Patent number: 5169889Abstract: Hot melt adhesive compositions are prepared from 20 to 90% by weight of a linear polyester of 3-hydroxybutyric and 3-hydroxyvaleric acids containing 9 to 35% of the hydroxyvalerate component; 10 to 80% by weight of a polar tackifier having a Ring and Ball softening (as described by ASTM E-26) greater than about 60.degree. C.; 0 to 50% by weight of a plasticizer; 0 to 30% by weight of a wax diluent and 0-3% by weight of a stabilizer; 0-20% of a compatible polymer. By utilizing a naturally occurring, thermoplastic, biodegradable copolymer as the base polymer, these adhesives advance the state of the art of hot melt adhesives by alleviating the dependence on petroleum based materials and by allowing for the development of hot melt adhesives which either degrade naturally after coming in contact with the soil or which can be composted.Type: GrantFiled: January 27, 1992Date of Patent: December 8, 1992Assignee: National Starch and Chemical Investment Holding CorporationInventors: Thomas Kauffman, Francis X. Brady, Paul P. Puletti, Gary Raykovitz
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Patent number: 5169890Abstract: The present invention relates to a thermoplastic hot melt adhesive comprising(a) a block copolymer, said block copolymer being prepared utilizing a bromide based coupling agent, said block copolymer comprising at least two monoalkenyl arene polymer end blocks A and at least one elastomeric conjugated diene polymer mid block B, and said block copolymer having about 8 to about 65 percent by weight of said monoalkenyl arene polymer block content, each polymer block A having an average molecular weight of between about 5,000 and about 125,000, and each polymer block B having an average molecular weight of between about 10,000 and about 300,000,(b) a polyisobutylene rubber,(c) a partially cross-linked polyisobutylene rubber(d) a compatible tackifying resin,(e) a phenolic antioxidant,(f) a non-reactive phenolic resin,(g) a fluorocarbon surface active agent, and(h) a petroleum derived wax.Type: GrantFiled: October 11, 1991Date of Patent: December 8, 1992Assignee: Ciba-Geigy CorporationInventors: Rajan Eadara, Julie Szymborski, Irvin Jackson
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Patent number: 5149741Abstract: Hot melt construction adhesives are described which possess superior properties for the construction of disposable soft articles. The adhesive compositions include an SIS copolymer containing at least about 25% styrene, a compatible tackifying resin, a plasticizing oil and an effective amount of a stabilizer.Type: GrantFiled: September 20, 1991Date of Patent: September 22, 1992Assignee: Findley Adhesives, Inc.Inventors: Mark D. Alper, Marion M. Myers
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Patent number: 5135978Abstract: 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: August 9, 1990Date of Patent: August 4, 1992Assignee: Avery Dennison CorporationInventor: Yukihiko Sasaki
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Patent number: 5115008Abstract: 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: August 9, 1990Date of Patent: May 19, 1992Assignee: Avery Dennison CorporationInventor: Yukihiko Sasaki