Patents Represented by Attorney, Agent or Law Firm Robert P. O'Flynn O'Brien
-
Patent number: 6315865Abstract: Silyl-linked polyamidoamines, and aqueous compositions including these resins, which have utility in wet strength, dry strength, creping, and glass fiber forming size applications. The resins also are useful as strength additives for paper that contains silicate mineral fillers and/or glass fibers.Type: GrantFiled: February 25, 1999Date of Patent: November 13, 2001Assignee: Hercules IncorporatedInventors: Anthony John Allen, Arjun C. Sau
-
Patent number: 6294645Abstract: The invention relates to resin systems useful for imparting dry-strength to paper without substantially increasing the paper's wet-strength wherein the resin system comprises a cationic component and an anionic component. The invention also relates to the process for incorporating these resin systems into paper and the paper produced containing the resin systems.Type: GrantFiled: July 25, 1997Date of Patent: September 25, 2001Assignee: Hercules IncorporatedInventors: Anthony J. Allen, Elliott Echt, William W. Maslanka, Jeffrey C. Peters
-
Patent number: 6218588Abstract: The invention relates to aromatic modified aliphatic hydrocarbon resins giving excellent balance between tack and shear properties even at low coating weights. These resins are characterized in that they have a Ring and Ball (R&B) softening point of 94° C. or lower, a weight average molecular weight (Mw) of not more than 2000 Dalton, a Z-average molecular weight (Mz) of not more than 6000 Dalton and a mixed methylcyclohexane aniline cloud point (MMAP) between 25 and 45° C. The aromatic modified aliphatic hydrocarbon resins of the invention may be prepared by subjecting polymerization feeds containing petroleum feeds which comprise (a) C5 and C6 olefins and/or diolefins including cycloolefins, (b) aromatic monomers and (c) (di-)cyclodiolefins to a Friedel-Crafts polymerization. The invention is also directed to the use of the aromatic modified aliphatic hydrocarbon resins as mono-tackifiers in adhesive formulations as well as to an adhesive tape comprising these resins.Type: GrantFiled: February 8, 1999Date of Patent: April 17, 2001Assignee: Hercules IncorporatedInventors: Nicolaas Adriaan Dommisse, Christiaan Pieter Louis Charles Donker, Michael Hendrikus Theelen, Jacobus van Rijn, Gerard Arie Verrijzer
-
Patent number: 6197919Abstract: This invention relates to resins useful for imparting dry-strength and temporary wet-strength to paper, the process of incorporating these resins into paper and the paper produced containing the resins. The resin comprises an amphoteric polymer produced through polymerization of an anionic monomer, a monomer containing aldehyde functionality and a cationic monomer.Type: GrantFiled: May 30, 1997Date of Patent: March 6, 2001Assignee: Hercules IncorporatedInventors: Mark T. Crisp, Richard J. Riehle
-
Patent number: 6184308Abstract: A hydrocarbon resin is prepared by (1) thermally polymerizing a mixture consisting essentially of (a) about 40% to 90% by weight based on total monomers of a cyclic diolefin component comprising at least about 50% by weight dicyclopentadiene, and (b) about 60% to 10% by weight based on total monomers of a specified vinyl aromatic component, preferably alpha-methylstyrene; para-methyl-&agr;-methylstyrene; 2,4-diphenyl-4-methyl-1-pentene, or mixtures thereof, and (2) recovering a product having a Ring and Ball softening point of about 70° to about 150° C. Hydrogenation of this resin produces light colored, thermally stable products that are useful as tackifiers in adhesives.Type: GrantFiled: February 3, 1998Date of Patent: February 6, 2001Assignee: Hercules IncorporatedInventors: Norman Edward Daughenbaugh, Dane George Goodfellow, Deborah Ann Riedl
-
Patent number: 6106939Abstract: The invention provides a petroleum-based aliphatic resin having: a) a Ring and Ball (R&B) softening point in the range of about 75 to about 110.degree. C., b) a weight average molecular weight (Mw) of about 1000 to about 2600 Dalton, a z-average molecular weight (Mz) from about 1900 to about 5000 Dalton and an Mw/Mn below about 2.0, c) a level of aromatic protons below about 1.5% with respect to the total protons determined by .sup.1 H-NMR, and d) a mixed methylcyclohexane aniline cloud point (MMAP) of about 90.degree. C. or less. The resins according to the invention are characterized by a high amount of cyclic structures. Further disclosed is a method of independently controlling the R&B softening point and the molecular weight of an aliphatic resin composition during its preparation by polymerization of a petroleum-based feed, the method being characterized in that the amount of cyclic structures in the resins is increased.Type: GrantFiled: March 3, 1997Date of Patent: August 22, 2000Assignee: Hercules IncorporatedInventors: Christiaan Pieter Donker, Berend Lenselink, Michael Hendrikus Theelen
-
Patent number: 6103814Abstract: Disclosed are hot-melt adhesive compositions suitable for the manufacture of soft goods. They have a melt viscosity of 60,000 mPa.s or less at a temperature of 120.degree. C. and include: (a) 50 to 150 parts by weight of a styrenic block copolymer or mixtures and/or modified and/or hydrogenated derivatives thereof; (b) 20 to 450 parts by weight of a tackifying resin which, when incorporated into a reference composition, leads to the following properties:a tan .delta. value of 3.5 or less, wherein tan .delta. is defined as the ratio between the loss modulus and the storage modulus of said composition andan elastic retention on spandex fibers (300%) or natural latex rubber (200%) after 4 h at 40.degree. C. of 70% or more; anda crossover temperature of 95.degree. C. or less.Further disclosed are novel partially hydrogenated hydrocarbon resins which are useful as tackifying resins and have the following properties: (a) a R&B softening point (R&B) of 50.degree. C. to 150.degree. C.Type: GrantFiled: April 10, 1997Date of Patent: August 15, 2000Assignee: Hercules IncorporatedInventors: Jan vanDrongelen, Johannes Cornelis M. Simons
-
Patent number: 6022717Abstract: Process for the oxidation of the oxidizable galactose type of alcohol in oxidizable galactose type of alcohol configuration containing polymer, such as guar, with galactose oxidase in the presence of oxidation promoting chemicals.Type: GrantFiled: December 31, 1997Date of Patent: February 8, 2000Assignee: Hercules IncorporatedInventors: Richard Lee Brady, Raymond Thomas Leibfried, Sr.
-
Patent number: 5981805Abstract: Blends of meta and para isomers of .alpha., .alpha.'-bis(t-butylperoxy) diisopropylbenzene are disclosed as well as methods of producing blends of .alpha., .alpha.'-bis(t-butylperoxy) diisopropylbenzene with desired ratios of meta and para isomers.Additionally, blends of meta and para isomers of .alpha., .alpha.'-bis(t-butylperoxy) diisopropylbenzene and tertiary alkyl cumyl peroxides are disclosed.The peroxides are useful for absorbing in polymers and subsequently crosslinking the polymers. The peroxide blends may be adjusted to have melt points below temperatures at which the polymers become difficult to process during the absorption step because of stickiness.Type: GrantFiled: July 11, 1997Date of Patent: November 9, 1999Assignee: Hercules IncorporatedInventor: Fredrick F. Nelson
-
Patent number: 5817900Abstract: The color of hydrocarbon resins having carbon-carbon double bonds and containing color bodies is lightened by a hydrotreating process consisting essentially of contacting the resin with hydrogen at a hydrogen pressure of 1 to about 20 bar (14.5 to about 290 psi) in the presence of a catalyst that promotes the hydrogenation of the color bodies without substantially changing the softening point or the content of carbon-carbon double bonds in the resin. The preferred catalyst is nickel/zinc oxide on SiO.sub.2.Type: GrantFiled: February 1, 1996Date of Patent: October 6, 1998Assignee: Hercules IncorporatedInventors: Erik Berrevoets, Jan van Drongelen
-
Patent number: 5739239Abstract: A hydrocarbon resin is prepared by (1) thermally polymerizing a mixture consisting essentially of (a) about 40% to 90% by weight based on total monomers of a cyclic diolefin component comprising at least about 50% by weight dicyclopentadiene, and (b) about 60% to 10% by weight based on total monomers of a specified vinyl aromatic component, preferably alpha-methylstyrene; para-methyl-.alpha.-methyl-styrene; 2,4-diphenyl-4-methyl-1-pentene, or mixtures thereof, and (2) recovering a product having a Ring and Ball softening point of about 70.degree. to about 150.degree. C. Hydrogenation of this resin produces light colored, thermally stable products that are useful as tackifiers in adhesives.Type: GrantFiled: June 7, 1995Date of Patent: April 14, 1998Assignee: Hercules IncorporatedInventors: Norman Edward Daughenbaugh, Dane George Goodfellow, Deborah Ann Riedl
-
Patent number: 5686537Abstract: Controlling premature curing of vulcanizable halogen-containing polymer compounds.Type: GrantFiled: June 1, 1995Date of Patent: November 11, 1997Assignee: Hercules IncorporatedInventor: Jay Bernard Class
-
Patent number: 5656733Abstract: Resinous compositions comprising lignin and polymerized rosin. Use of salts of the resinous compositions as concrete air-entraining agents and asphalt emulsifiers.Type: GrantFiled: June 7, 1995Date of Patent: August 12, 1997Assignee: Hercules IncorporatedInventor: Richard Robert Suchanec
-
Patent number: 5645757Abstract: A composition in the form of a dry pourable powder cure premix composition for inclusion in a halogen-containing vulcanizable polymer composition, comprising a thioester derivative of 2,5-dimercapto-1,3,4-thiadiazole crosslinking agent, glycerin and a pourable siliceous finely divided filler. The composition is useful for controlling premature curing of vulcanizable halogen-containing polymer compounds.Type: GrantFiled: May 25, 1995Date of Patent: July 8, 1997Assignee: Hercules IncorporatedInventor: Jay Bernard Class
-
Patent number: 5531727Abstract: A nonwoven fabric having flow control properties suitable for use in a fluid absorbing article such as a diaper, incontinence pad, or the like; and a process for preparation thereof by utilizing unbonded carded staple fiber elements or webs having different average dpf values compiled in graduated order from high-to-low average dpf, then compressed and bonded to a desired constant fabric density.Type: GrantFiled: October 25, 1994Date of Patent: July 2, 1996Assignee: Hercules IncorporatedInventors: Richmond R. Cohen, Edward J. Engle
-
Patent number: 5523374Abstract: Curable compositions including epoxy-functional compounds and polyenes, as well as cyclic polysiloxanes, and/or tetrahedral siloxysilanes, and/or linear polysiloxanes; along with, or instead of these polyenes and silicon compositions, crosslinkable prepolymers prepared from such polyenes and silicon compounds may be included. A curing agent, and yet additionally, a curing accelerator, may also be included. These compositions can be thermally cured, in the presence of hydrosilation catalysts.Type: GrantFiled: October 26, 1993Date of Patent: June 4, 1996Assignee: Hercules IncorporatedInventors: John K. Bard, Richard L. Brady, Raymond T. Leibfried, De K. Loo
-
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
-
Patent number: 5512376Abstract: A reactive component, which is curable to form a nonpolar polymer containing silicon and carbon atoms, and having a glass transition temperature of at least 20.degree. C., is mixed with an antiplasticizer. The resulting mixture, a curable composition, is cured to form a composition having an increased modulus. The reactive component preferably comprises a polyene having at least two hydrosilation reactive carbon-carbon double bonds (e.g., dicyclopentadiene), and a silicon compound having at least two hydrosilation reactive .ident.SiH groups. Preferably the silicon compound comprising at least one member selected from the group consisting of cyclic polysiloxanes, tetrahedral siloxysilanes, and linear polysiloxanes. Preferably the resulting cured composition is crosslinked, due to at least one member selected from the group consisting of the polyene and the silicon compound having more than two hydrosilation reactive sites. Preferably the curable composition further comprises a hydrosilation catalyst.Type: GrantFiled: June 20, 1994Date of Patent: April 30, 1996Assignee: Hercules IncorporatedInventors: Richard L. Brady, Samuel A. Thompson
-
Patent number: 5491214Abstract: The color of hydrocarbon resins having carbon-carbon double bonds and containing color bodies is lightened by a hydrotreating process comprising contacting a resin having a weight average molecular weight Mw of 250-10,000 with hydrogen in the presence of a catalyst that promotes the hydrogenation of the color bodies without substantially changing the content of carbon-carbon double bonds in the resin. The preferred catalysts are copper chromite and copper/zinc.Type: GrantFiled: May 5, 1995Date of Patent: February 13, 1996Assignee: Hercules IncorporatedInventors: Norman E. Daughenbaugh, Dane G. Goodfellow
-
Patent number: H1743Abstract: Method and apparatus for inventory monitoring a supply consumed in the manufacturing of a finished product. An inventory management system monitors the quantity of supplies in a storage facility. Based upon historical data related to the rate of usage of the supplies, the inventory management system determines the period of time until the stored supplies are depleted. If the supplies are depleted prior to a next scheduled delivery of replacement supplies, the inventory management system communicates with the supplier to move ahead the delivery date. Conversely, if the inventory management system determines that the supplies are being consumed at a rate lower than projected, the inventory management system will instruct the supplier to delay a shipment date. Supervisory personnel may access the system from a local location or a remote location. In addition, an alarm is activated when there is a sudden change in the rate of usage of the stored supplies.Type: GrantFiled: March 17, 1995Date of Patent: August 4, 1998Assignee: Hercules IncorporatedInventors: Henry K. Graves, Robert W. Perkins, Jack Phillips Mills, Jr., Gerald Richard Giles