Patents Represented by Attorney Jordan J. Driks
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Patent number: 5643591Abstract: A composition for agricultural and other actives, comprising a finely-divided particulate combination of microcrystalline cellulose, at least one nitrogen compound such as urea, an ammonium sulfate or phosphate and, optionally, a suspending agent for the microcrystalline cellulose. The composition can be compacted to form shaped, solid dosage forms such as tablets which disintegrate rapidly in an aqueous medium.Type: GrantFiled: April 20, 1994Date of Patent: July 1, 1997Assignee: FMC CorporationInventors: Dev K. Mehra, Nagui I. Ibrahim, Edwin G. Fleck, Jr.
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Patent number: 5561205Abstract: A tetravalent organotin containing compound where the tin atom is attached via an alkyl group to a phenyl moiety with a polymerizable group thereon, is useful as a monomer. A polymer prepared from the monomer. A transesterification catalyst prepared from the polymer and a process for conducting a transesterification reaction using the transesterification catalyst.Type: GrantFiled: March 31, 1995Date of Patent: October 1, 1996Assignee: Rohm and Haas Co.Inventors: Oian Jiang, Christine McDade, Andrew W. Gross
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Patent number: 5493025Abstract: A polyfluoro beta-keto ester is prepared by reacting a polyfluoro acid anhydride or a polyfluorocarboxylic acid chloride with a carboxylic acid chloride in the presence of a tertiary amine.Type: GrantFiled: July 27, 1994Date of Patent: February 20, 1996Assignee: Rohm and Haas CompanyInventor: Lois M. Bryman
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Patent number: 5436357Abstract: A tetravalent organotin containing compound where the tin atom is attached via an alkyl group to a phenyl moiety with a polymerizable group thereon, is useful as a monomer. A polymer prepared from the monomer. A transesterification catalyst prepared from the polymer and a process for conducting a transesterification reaction using the transesterification catalyst.Type: GrantFiled: June 6, 1994Date of Patent: July 25, 1995Assignee: Rohm and Haas CompanyInventors: Qian Jiang, Christine McDade, Andrew W. Gross
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Patent number: 5358681Abstract: An extruder having a reduced nip ratio and a process employing the same.Type: GrantFiled: April 29, 1993Date of Patent: October 25, 1994Assignee: Rohm and Haas CompanyInventors: Robert E. Jerman, Paul J. Raymond, Sunil Satija
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Patent number: 5266256Abstract: A process is provided for modifying the residence time distribution of materials in an extruder which results in a residence time distribution comparable to that obtained in a continuous stirred tank reactor. An extruder is provided which has a section which modifies the residence time distribution of materials loaded into the extruder.Type: GrantFiled: February 16, 1993Date of Patent: November 30, 1993Assignee: Rohm and Haas CompanyInventors: Robert E. Jerman, Jeffrey L. Daecher, Glenn W. Miller
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Patent number: 5229456Abstract: A novel graft copolymer capable of imparting to a polyolefin when blended therewith high tensile modulus and high sag resistance without increasing melt viscosity, and a method of making the same. The graft copolymer is a polyolefin having a relatively high weight-average molecular weight methacrylate polymer grafted thereto. The graft copolymer is formed by dissolving or swelling a non-polar polyolefin in an inert hydrocarbon solvent, heating to dissolve the polyolefin, and while stirring the mixture, adding a methacrylate monomer, together with an initiator to produce a constant, low concentration of radicals, to form a graft copolymer with a high molecular weight polymer chain covalently bonded or grafted to the polyolefin backbone. The graft copolymer can be separated from the solvent, isolated by volatilizing the solvent, for example in a devolatilizing extruder, and extruded into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a poolyolefin matrix.Type: GrantFiled: January 31, 1992Date of Patent: July 20, 1993Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, Newman Bortnick, William J. Work
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Patent number: 5202380Abstract: The addition of a polyolefin-acrylic graft copolymer to blends of polyolefin and core-shell polymers improves compatibility and allows core-shell polymers to be used as processing and performance modifiers polyolefins. Generally the compatibilizing additive is a graft copolymer of a polyolefin and a methacrylate. More specifically, the graft copolymer is derived from at least about 80% of a monomer of a methacrylic ester of the formula CH.sub.2 .dbd.C(CH.sub.3)COOR, where R may be alkyl, aryl, or aralkyl, substituted or unsubstituted, and less than 20%, based on a total monomer weight, of an acrylic or styrenic monomer copolymerizable with the methacrylic ester grafted on to a non polar polyolefin trunk, so that at least one chain is a polymer with a weight average molecular weight greater than about 20,000 and is present in a weight ratio with the polyolefin trunk of from about 1:9 to about 4:1.Type: GrantFiled: June 24, 1992Date of Patent: April 13, 1993Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, David L. Dunkelberger, Dennis J. Labanoski
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Patent number: 5147932Abstract: The addition of a polyolefin-acrylic graft copolymer to blends of polyolefin and core-shell polymers improves compatibility and allows core-shell polymers to be used as processing and performance modifiers polyolefins. Generally the compatibilizing additive is a graft copolymer of a polyolefin and a metharcylate. More specifically, the graft copolymer is derived from at least about 80% of a monomer of a methacrylic ester of the formula CH.sub.2 .dbd.C(CH.sub.3)COOR, where R may be alkyl, aryl, or aralkyl, substituted or unsubstituted, and less than 20%, based on a total monomer weight, of an acrylic or styrenic monomer copolymerizable with the methacrylic ester grafted on to a non-polar polyolefin trunk, so that at least one chain is a polymer with a weight average molecular weight greater than about 20,000 and is present in a weight ratio with the polyolefin trunk of from about 1:9 to about 4:1.Type: GrantFiled: January 31, 1992Date of Patent: September 15, 1992Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, David L. Dunkelberger, Dennis J. Labanoski
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Patent number: 5128410Abstract: A novel graft copolymer capable of imparting to a polyolefin when blended therewith high tensile modulus and high sag resistance without increasing melt viscosity, and a method of making the same. The graft copolymer is a polyolefin having a relatively high weight-average molecular weight methacrylate polymer grafted thereto. The graft copolymer is formed by dissolving or swelling a non-polar polyolefin in an inert hydrocarbon solvent, heating to dissolve the polyolefin, and while stirring the mixture, adding a methacrylate monomer, together with an initiator to produce a constant, low concentration of radicals, to from a graft copolymer with a high molecular weight polymer chain covalently bonded or grafted to the polyolefin backbone. The graft copolymer can be separated from the solvent, isolated by volatilizing the solvent, for example in a devolatilizing extruder, and extruded into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a polyolefin matrix.Type: GrantFiled: June 11, 1990Date of Patent: July 7, 1992Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilendra, Newman Bortnick, Roger K. Graham, William J. Work
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Patent number: 5109066Abstract: The addition of a polyolefin-acrylic graft copolymer to blends of polyolefin and core-shell polymers improves compatibility and allows core-shell polymers to be use as processing and performance modifiers polyolefins. Generally the compatibilizing additive is a graft copolymer of a polyolefin and a methacrylate. More specifically, the graft copolymer is derived from at least about 80% of a monomer of a methacrylic ester of the formula CH.sub.2 .dbd.C(CH.sub.3)COOR, where R may be alkyl, aryl, or aralkyl, substituted or unsubstituted, and less than 20%, based on a total monomer weight, of an acrylic or styrenic monomer copolymerizable with the methacrylic ester grafted on to a non-polar polyolefin trunk, so that at least one chain is a polymer with a weight average molecular weight greater than about 20,000 and is present in a weight ratio with the polyolefin trunk of from about 1:9 to about 4:1.Type: GrantFiled: November 21, 1990Date of Patent: April 28, 1992Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, David L. Dunkelberger, Dennis J. Labanoski
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Patent number: 5035933Abstract: This invention provides an improved adhesive layer for multi-layer films and bottles, the adhesive layer being a graft copolymer of a polyolefin backbone with a methyl methacrylate graft. The graft copolymer sufficiently improves the compatibility between barrier resins and polyolefins to permit the production of monolithic or single layer bottles comprised of a blend of those three components. The resultant products have improved physical properties while retaining acceptable permeability to gases.Type: GrantFiled: September 28, 1989Date of Patent: July 30, 1991Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, Thomas M. Frantz, William T. Freed
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Patent number: 5006253Abstract: An improved method of operating a membrane separation system is provided, which comprises applying a reduced pressure to one side of the or each membrane to thereby cause fluid to be drawn through the or each membrane from the other side thereof.As the method does not utilize fluid under pressure, which has typically been required in prior art procedures, the risk of damage to the membranes is eliminated, or at least minimized.Type: GrantFiled: March 31, 1989Date of Patent: April 9, 1991Assignee: Rohm and Haas CompanyInventor: John Slegers
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Patent number: 4997884Abstract: The addition of a polyolefin-acrylic graft copolymer to blends of polyolefin and core-shell polymers improves compatibility and allows core-shell polymers to be used as processing and performance modifiers pololefins. Generally the compatibilizing additive is a graft copolymer of a polyolefin and a methacrylate. More specifically, the graft copolymer is derived from at least about 80% of a monomer of a methacrylic ester of the formula CH.sub.2 .dbd.C(CH.sub.3)COOR, where R may be alkyl, aryl, or aralkyl, substituted or unsubstituted, and less than 20%, based on a total monomer weight, off an acrylic or styrenic monomer copolymerizable with the methacrylic ester grafted on to a non-polar polyolefin trunk, so that at least one chain is a polymer with a weight averge molecular weight greater than about 20,000 and is present in a weight ratio with the polyolefin trunk of from about 1:9 to about 4:1.Type: GrantFiled: September 28, 1989Date of Patent: March 5, 1991Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, David L. Dunkelberger, Dennis J. Labanoski
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Patent number: 4957974Abstract: A novel graft copolymer capable of imparting to a polyolefin when blended therewith high tensile modulus and high sag resistance without increasing melt viscosity, and a method of making the same. The graft copolymer is a polyolefin having a relatively high weight-average molecular weight methacrylate polymer grafted thereto. The graft copolymer is formed by dissolving or swelling a non-polar polyolefin in an inert hydrocarbon solvent, heating to dissolve the polyolefin, and while stirring the mixture, adding a methacrylate monomer, together with an initiator to produce a constant, low concentration of radicals, to form a graft copolymer with a high molecular weight polymer chain covalently bonded or grafted to the polyolefin backbone. The graft copolymer can be separated from the solvent, isolated by volatilizing the solvent, for example in a devolatilizing extruder, and extruded into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a polyolefin matrix.Type: GrantFiled: March 1, 1989Date of Patent: September 18, 1990Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, Newman Bortnick, Roger K. Graham, William J. Work
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Patent number: 4637904Abstract: Process for forming a polymeric layer on a substrate comprises placing a substrate to be coated in a mold having a removable lid, injecting a liquid monomer into the mold and into contact with the surface of the substrate to be coated, holding the substrate in place in said mold prior to curing said monomer, radiation curing the liquid monomer, releasing the hold on said substrate prior to significant shrinkage of the curing liquid monomer, and venting said mold to atmospheric pressure at the portion of the mold remote from the surface of the substrate being coated and prior to significant shrinkage of said liquid monomer whereby the substrate moves toward the removable lid. Thereafter, the substrate, which now has a polymeric layer affixed thereto, is removed from the mold.Type: GrantFiled: November 14, 1983Date of Patent: January 20, 1987Assignee: Rohm and Haas CompanyInventor: Nicholas A. Rounds
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Patent number: 4617329Abstract: A polymer blend comprises from about 60 parts to about 99.9 parts by weight of a pigmented thermoplastic resin, which resin is a polyester or a polycarbonate or mixtures thereof, and from about 0.1 part to about 40 parts of a sequentially produced multi-stage polymer. The multi-stage polymer comprises a polymer core of at least about 10 parts, based on the weight of the multi-stage polymer. The core is polymerized from a styrenic monomer, or a mixture of styrenic monomers. The styrenic monomer of the core comprises at least about 50% by weight of said core. A second monomer may be present and a crosslinking monomer for styrene is present in said core. The second stage of the multi-stage polymer comprises a polymeric soft stage and the outer stage of the multi-stage polymer is a rigid thermoplastic.Type: GrantFiled: September 5, 1985Date of Patent: October 14, 1986Assignee: Rohm and Haas CompanyInventors: Richard H. Weese, Evan H. Crook, Susan M. Liwak
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Patent number: 4602083Abstract: A process for the coagulation of an aqueous polymer latex comprises contacting the aqueous polymer latex with an effective amount of an aqueous solution of a water soluble non-nucleophilic, non-oxidative salt of an alkaline earth metal and removing the coagulated polymer from the aqueous medium. The polymer prepared by the process has a unique combination of properties.Type: GrantFiled: January 10, 1985Date of Patent: July 22, 1986Assignee: Rohm and Haas CompanyInventor: Ju-Ming Hung
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Patent number: 4535030Abstract: A polymer coated information storage device, such as a disc, is disclosed. A coating composition for preparing such polymeric coating comprises certain esters of beta-acryloxypropionic acid with certain diacrylates. The coating composition also comprises under certain circumstances, a photoinitiator.Type: GrantFiled: April 13, 1984Date of Patent: August 13, 1985Assignee: Rohm and Haas CompanyInventor: Nicholas A. Rounds
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Patent number: 4514439Abstract: Process for forming an optically transparent polymeric protective layer for an information disc. The disc is placed in a stationary horizontal position and a liquid radiation curable coating is applied to the surface of the disc from an applicator disposed above the disc. Coating of the disc is accomplished by equally spaced sequential movement of an applicator which is on a plane parallel to the surface of the stationary disc. The liquid coating is then allowed to spread evenly across the disc surface and is thereafter cured by means of radiation.Type: GrantFiled: September 16, 1983Date of Patent: April 30, 1985Assignee: Rohm and Haas CompanyInventor: Nicholas A. Rounds