Patents Represented by Attorney Harold L. Greenwald
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Patent number: 4897119Abstract: Disclosed is a novel composition comprising water, ground blast furnace slag and a low molecular weight polymeric dispersant. The dispersant is a polymer of acrylic acid, having a molecular weight between 1000 and 20,000, and being in the form of the acid or the salt of an alkali metal or ammonia. A process for preparing a dispersion having the novel composition is also disclosed.Type: GrantFiled: January 11, 1988Date of Patent: January 30, 1990Assignees: Geochemical Corporation, W. J. ClarkeInventor: William J. Clarke
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Patent number: 4761183Abstract: A grouting composition, a method of grouting and a formation so grouted are disclosed. The composition comprises a very small particle size slag, an equal or greater weight of water and the optional components cement, alkali silicate, anionic dispersant, a source of orthophosphate ions, sodium hydroxide and sodium carbonate. The grout is particularly adapted to the treatment of "tight" or low permeability formations being low in viscosity and having controllable set time and hardening time as well as high strength upon hardening. Being based on slag, a byproduct, the grout is economical.Type: GrantFiled: January 20, 1987Date of Patent: August 2, 1988Assignees: Geochemical Corporation, William J. ClarkeInventor: William J. Clarke
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Patent number: 4448839Abstract: A method of sizing a hydrophobic yarn for weaving comprising the steps of applying thereto an acid pH latex of a free radical initiated vinyl polymer and drying the yarn. The polymer has a weight average molecular weight of from about 300,000 to about 2,500,000, and in dried film form is hydrophobic, not redispersible in a solution at a low pH and redispersible in an alkaline aqueous medium. The polymer is prepared from monomers comprising about 8% to about 14%, by weight ethylenically unsaturated acid. The average solubility parameter of the monomers in the polymer is between about 9.0 and about 9.5; the calculated polymer T.sub.g is between about -20.degree. C. and 20.degree. C. Preferred yarns are nylon and polyester.Type: GrantFiled: October 20, 1981Date of Patent: May 15, 1984Assignee: Rohm and Haas CompanyInventor: Hal C. Morris
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Patent number: 4425469Abstract: A water soluble, vinyl addition polymer of acrylamide comprising a hydrophobic terminal group is useful as an adsorbate and as a flow modifier in aqueous systems. The polymer is particularly useful as a thickening agent or rheology modifier for water based multiphase systems, a block improvement additive in water based coatings formulations, a stabilizer for aqueous emulsions (including polymer emulsions), a transfer aid in water based ink or roll coater formulations, a surfactant and a dispersant. The disclosure also comprises a solution polymerization method of preparing the polymer.Type: GrantFiled: September 8, 1980Date of Patent: January 10, 1984Assignee: Rohm and Haas CompanyInventors: William D. Emmons, Travis E. Stevens
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Patent number: 4406737Abstract: A procedure is disclosed for creping paper without conferring wet strength or sizing thereto.Type: GrantFiled: September 11, 1981Date of Patent: September 27, 1983Assignee: Rohm and Haas CompanyInventors: Joseph J. Latimer, Travis E. Stevens
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Patent number: 4406660Abstract: Non-woven fibrous products, such as diapers, in which the fibres are bound together by an emulsion copolymer of C.sub.4 C.sub.8 ester of acrylic and/or methacrylic acid: at least one of methyl methacrylate, styrene or .alpha.-methyl styrene and acid comprising mono-unsaturated dicarboxylic acid optionally in combination with mono-unsaturated monocarboxylic acid. The fibres comprise at least 50% hydrophilic fibres such as cellulosic fibres.Type: GrantFiled: November 14, 1980Date of Patent: September 27, 1983Assignee: Rohm and Haas CompanyInventors: Jean-Marc Beiner, Jerome F. Levy, Bernard J. M. Sweens
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Patent number: 4394128Abstract: Taught is a method of sizing polyester yarn for weaving comprising the steps of applying thereto a latex having an acid pH and of a free radical initiated vinyl polymer having a weight average molecular weight of from about 300,000 to about 2,500,000, said polymer in dried film form being hydrophobic and not redispersible in a solution at a pH of from about 2 to 7 but redispersible by an aqueous alkaline medium, said polymer being prepared from monomers consisting essentially of by weight, 45-65% butyl acrylate a total of 28-45% styrene and/or methyl methacrylate and a total of 8-14% acrylic acid and/or methacrylic acid, and drying the yarn.Type: GrantFiled: October 31, 1980Date of Patent: July 19, 1983Assignee: Rohm and Haas CompanyInventor: Hal C. Morris
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Patent number: 4357435Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, and their derivatives have a wide variety of applications, including use as components in films, coatings, fibers, impregnants, adhesives, printing inks, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: September 29, 1977Date of Patent: November 2, 1982Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4336345Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, and their derivatives having condensation-crosslinkable functionality have a wide variety of applications, including use as components in films, coatings, fibers, impregnants, adhesives, printing inks, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: May 12, 1980Date of Patent: June 22, 1982Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4308092Abstract: A procedure is disclosed for creping paper without conferring wet strength or sizing thereto.Type: GrantFiled: May 7, 1976Date of Patent: December 29, 1981Assignee: Rohm and Haas CompanyInventors: Joseph J. Latimer, Travis E. Stevens
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Patent number: 4292220Abstract: The specification discloses a polymer of ethylenically unsaturated monomers wherein the polymer comprises diamide mer units having pendant unsaturated, air-curable alkyl groups. Methods of making and using the polymers and articles made therefrom are taught. The polymer may be used in coating, bonding or adhering to substrates. Of particular importance are uses in paint compositions and in caulk compositions. The air-curable alkyl diamide mer unit is derived from an unsaturated drying oil. Aqueous coating compositions are disclosed in which the polymer is an ammonia or amine salt, in solution, and is either the sole polymeric vehicle or is combined with a water insoluble polymer latex.Type: GrantFiled: December 20, 1979Date of Patent: September 29, 1981Assignee: Rohm and Haas CompanyInventors: Ronald W. Novak, Leslie R. Wolf
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Patent number: 4288499Abstract: This invention is concerned with an article comprising a polyolefin substrate and adherent thereto a vinyl addition polymer of monomers comprising at least 5% by weight a primary monomer selected from(a) monomers having the formula ##STR1## wherein X is --O--, --NH-- or --NR.sup.5 --;R.sup.1 and R.sup.7, individually, are H, methyl or ethyl;R.sup.2 is H or an organic radical, preferably --COOH, --CONH.sub.2 or --COOR.sup.6 ;R.sup.3 is H or an organic radical, preferably methyl, other alkyl having up to about five carbon atoms, --CH.sub.2 COOR.sup.6, --COOR.sup.6 or --CH.sub.2 COOH;R.sup.4 and R.sup.5, individually, are monocyclic alkyl having six or more carbon atoms, acyclic alkyl having nine or more carbon atoms, or alkaryl having nine or more carbon atoms;R.sup.Type: GrantFiled: May 8, 1979Date of Patent: September 8, 1981Assignee: Rohm and Haas CompanyInventor: Andrew J. Kielbania, Jr.
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Patent number: 4279959Abstract: Disclosed is a water-insoluble addition copolymer of an ethylenically unsaturated unsubstituted amide and at least one other ethylenically unsaturated monomer comprising sufficient amide groups mono-functionally bonded to a polyaldehyde to render the copolymer thermosettable. The copolymer is adapted for use as or for formulation in a binder. Such a binder is readily made from a copolymer latex and is useful in processes for the preparation of products such as nonwoven fabrics and bonded papers.Type: GrantFiled: December 28, 1979Date of Patent: July 21, 1981Assignee: Rohm and Haas CompanyInventors: Dominic R. Falgiatore, William D. Emmons
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Patent number: 4246370Abstract: Polymers of esters of acrylic acid having an average chain length of about 6 to about 30 mers are prepared by an anionic polymerization reaction, carried out in the presence of a catalytic amount of an alkoxide anion. These polymers, their hydrolysis products, and their derivatives have a wide variety of applications, including among others use as components in films, coatings, fibers, impregnants, adhesives, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: March 5, 1979Date of Patent: January 20, 1981Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4243430Abstract: Described herein is a pigment paste for use in an aqueous paint comprising a film-forming latex polymer, a pigment and a dispersant copolymer. Also described is the dispersant copolymer which serves the function of dispersing the pigment in the preparation of the paste and maintaining the dispersion in the paste and paint made therefrom. The dispersant copolymer is such that its complex salt formed with Zn++ and ammonia is water-soluble at a pH of 9.6. The dispersant is a copolymer of an .alpha.,.beta.-unsaturated monovinylidene carboxylic acid and at least one other ethylenically unsaturated monomer. The dispersant is particularly adapted to preparing paste for difficult-to-formulate paints such as paints with reactive pigments and paints requiring high levels of dispersant.Type: GrantFiled: September 21, 1977Date of Patent: January 6, 1981Assignee: Rohm and Haas CompanyInventors: Peter R. Sperry, Richard J. Wiersema
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Patent number: 4234381Abstract: An effective amount of a vinylbenzyltrialkylammonium salt, prepared from a vinylbenzyl halide and a tertiary amine, is polymerized with various other monomers to afford stable latex polymers which have the latex stabilizing surfactant incorporated into the polymer backbone. The use of a vinylbenzyltrialkylammonium salt lessens or avoids the usual problems associated with the conventional anionic, nonionic or cationic emulsifiers employed in aqueous polymerizations. The copolymers prepared with the quaternary ammonium compounds are useful as sizing agents, as extender/binders for cationic water repellents; in addition, the polymers are depositable on pulp without requiring any deposition aids or defoamers.Type: GrantFiled: February 1, 1979Date of Patent: November 18, 1980Assignee: Rohm and Haas CompanyInventor: H. Scott Killam
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Patent number: 4230772Abstract: Aqueous, solution or emulsion, and solvent based compositions comprising a crosslinked vinyl addition polymer having methacrylaldimine crosslinking groups are useful as coatings, binders and adhesives. The polymers are prepared from a crosslinkable composition comprising (A) a vinyl addition homopolymer or copolymer of methacrolein and (B) a compound having at least two amine-function groups selected from primary amine and primary amine-generating groups. A method of use is described in which crosslinking is at ambient temperatures.Type: GrantFiled: April 2, 1979Date of Patent: October 28, 1980Assignee: Rohm and Haas CompanyInventors: Graham Swift, Benjamin Bartman, Harry J. Cenci
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Patent number: 4226753Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, and their derivatives having condensation-crosslinkable functionality have a wide variety of applications, including use as components in films, coatings, fibers, impregnants, adhesives, printing inks, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: May 15, 1978Date of Patent: October 7, 1980Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4208313Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, or their hydroxyl-containing derivatives are esterified or transesterified to give polymers having pendant acrylate or methacrylate functionality which are useful in formulating films, coatings, inks, and the like.Type: GrantFiled: October 20, 1977Date of Patent: June 17, 1980Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4199400Abstract: Migration-resistant binder compositions for bonding nonwoven fibers are disclosed. These compositions comprise (A) an anionically-stabilized polymer latex; (B) a water-soluble polymer of 20-100% by weight of mer units containing an amine group and having a viscosity average molecular weight between 5,000 and 300,000; (C) a volatile base and (D) 0 to 80% of pigment based on the total polymer weight of (A) and (B). Usually, the compositions have a solids content between 10% and 60% by weight, a viscosity below 3,000 centipoise, a pH above 5, and a component (B) content between 0.1% and 20% by weight of the solids. In alternative compositions, component (B) is replaced by component (B'), a water-insoluble polymer with the same amine group content and a viscosity average molecular weight between 5,000 and 100,000. (A), (B) and (B') are polymers of a .alpha.-.beta. ethylenically unsaturated monomers.Type: GrantFiled: June 13, 1977Date of Patent: April 22, 1980Assignee: Rohm and Haas CompanyInventors: Ronald D. Bakule, R. A. Gill, Lawrence K. Wempe