Patents Assigned to Rohm and Haas Co.
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Patent number: 11578177Abstract: Provided is a method of modifying polycarbonate comprising blending the polycarbonate with composite particles, wherein the composite particles comprise (I) a crosslinked polyolefin core, and (II) a full or partial shell comprising polymerized units of one of more vinyl monomers.Type: GrantFiled: December 4, 2018Date of Patent: February 14, 2023Assignees: Dow Global Technologies LLC, Rohm and Haas Co.Inventors: Liang Chen, Andy Jun Li, Matthew Carter, Robert S. Moglia, Ralph C. Even, John F. Kohn, Carlos A. Cruz, Yannick Saint-Gerard, Douglas J. Hasso
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Patent number: 11577225Abstract: A heterogeneous catalyst comprising a support and a noble metal, wherein said support comprises silicon, and wherein said catalyst comprises from 0.1 to 40 mol % titanium and from 0.1 to 10 mol % of at least one noble metal.Type: GrantFiled: December 13, 2018Date of Patent: February 14, 2023Assignees: Dow Global Technologies LLC, Rohm and Haas Co.Inventors: Christopher D. Frick, Jeffrey A. Herron, Kirk W. Limbach, Wen Sheng Lee, Victor J. Sussman
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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: 5208370Abstract: The present invention provides a method of reducing the levels of protoanemonin present in aqueous monomer solutions by adding an effective amount of one or more para-phenylenediamines having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different radical selected from hydrogen, methyl, ethyl, n-propyl, iso-propyl, phenyl or methoxyphenyl with the proviso that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is hydrogen; R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are the same or different radical selected from hydrogen, methyl, ethyl, n-propyl, iso-propyl, methoxy or ethoxy with the proviso that at least one of R.sub.5, R.sub.6, R.sub.7 and R.sub.8 is hydrogen; and salts thereof.Type: GrantFiled: April 22, 1992Date of Patent: May 4, 1993Assignee: Rohm and Haas Co.Inventors: William Bauer, Jr., Nelson I. Quiros
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Patent number: 4814398Abstract: A B stageable thermosettable composition containing at least one polyepoxide and at least one linear anhydride monomer capable of forming a cyclopolymer in situ and processes for the formation of the B stage intermediate and final thermoset having a high service temperature is provided. The composition is useful in a two stage process; first to form a storage stable, flowable thermoplastic B stage intermediate by the free radical initiated vinyl polymerization of the linear anhydride in the liquid composition to a cyclic polymer and secondly to react the cyclic polymer with the poly epoxide to form a crosslinked high service temperature thermoset useful in the preparation of laminates, such as printed circuit boards, adhesives and encapsulants.Type: GrantFiled: December 28, 1987Date of Patent: March 21, 1989Assignee: Rohm and Haas Co.Inventors: Federick J. Hirsekorn, William D. Emmons
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Patent number: 4810471Abstract: A vacuum manifold for solid phase extraction of a plurality of liquid samples from reagent tubes removably connected by valves to a vacuum chamber through a removable vacuum tight cover closing. A plurality of parallel flow paths are provided through the cover for the flow of liquid samples into the vacuum chamber, through a plurality of valves rotatable about an axis parallel to the general direction of flow through the cover to provide flow adjustment and closing of the valves. A valve is also provided for attaching the vacuum chamber to a vacuum source to create a vacuum therein. An optional attachment is provided permitting treatment of materials with nitrogen or other gases using a manifold plate attached to a source of gas and providing a plurality of valve control means axially aligned to couple with the rotatable valves for passage of liquid into the vacuum chamber.Type: GrantFiled: July 24, 1986Date of Patent: March 7, 1989Assignee: Rohm and Haas Co.Inventors: George D. Wachob, Robert W. Rightnour
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Patent number: 4745134Abstract: Improved, inert separator beads for separating cation exchange resins from anion exchange resins during regeneration of mixed-bed exchange resins have been discovered. These beads are crosslinked copolymers of methyl methacrylate, styrene and a hydrophilic monomer containing an amide functionality, and have little tendency to clump together or clump at an air-water interface.Type: GrantFiled: June 27, 1984Date of Patent: May 17, 1988Assignee: Rohm and Haas Co.Inventor: Peter Osei-Gyimah
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Patent number: 4742123Abstract: Thermoplastic, non-crosslinked polymer compositions having glutaric anhydride units of the formula: ##STR1## wherein R represents CH.sub.3 or H, process for imidizing said compositions, the resultant imide polymers which are free of methyl imide units, and process of devolatilizing an acrylic or methacrylic acid-containing polymer in an extruder to the corresponding anhydride, and then introducing a reactant selected from the group consisting of ammonia, ammonia generators, primary amine, and primary amine generators.Type: GrantFiled: December 11, 1986Date of Patent: May 3, 1988Assignee: Rohm and Haas Co.Inventor: Richard M. Kopchik
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Patent number: 4718946Abstract: Acrylic anion exchange resin is used, either alone or in combination with another anion exchange resin, to purify sugar solutions of the material extracted by the solutions from sulfonated cation exchange resins. The anion exchange resin being derived by polymerization from a monomer mixture comprising polyvinyl crosslinking monomer and one or more monovinyl acrylic monomers.Type: GrantFiled: April 16, 1984Date of Patent: January 12, 1988Assignee: Rohm and Haas Co.Inventor: William Fries
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Patent number: 4713268Abstract: Strong, tough, ovenable trays may be formed from poly(ethylene terephthalate) modified with 4-29% core/shell polymer, 0-14.5% aromatic polycarbonate and 1-5% aromatic polyester crystallization-rate accelerator.Type: GrantFiled: December 5, 1986Date of Patent: December 15, 1987Assignee: Rohm and Haas Co.Inventor: William G. Carson
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Patent number: 4711725Abstract: A process for stabilizing aqueous systems containing scale forming salts and inorganic particulates by adding to such systems an effective amount of selected low molecular weight water soluble polymers containing from about 10 to about 84 weight percent (meth)acrylic acid units, greater than 11 to less than about 40 weight percent acrylamido alkyl or aryl sulfonate units and from at least about 5 to about 50 weight percent of one or more units selected from vinyl esters, vinyl acetate and substituted acrylamides, is provided. The terpolymers and interpolymers used in the process provide improved phosphate, iron and zinc stabilization while maintaining their water solubility. Certain preferred polymers also exhibit a high degree of hydrolytic stability at high pH conditions.Type: GrantFiled: May 7, 1986Date of Patent: December 8, 1987Assignee: Rohm and Haas Co.Inventors: David R. Amick, William M. Hann, John Natoli
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Patent number: 4650824Abstract: Interpolymers made by polymerizing vinyl chloride monomer in the presence of a polyimide show excellent heat distortion resistance and processing characteristics.Type: GrantFiled: April 30, 1986Date of Patent: March 17, 1987Assignee: Rohm and Haas Co.Inventors: Richard R. Clikeman, Douglas S. Cinoman, Ernst D. Weiler
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Patent number: 4399255Abstract: Alloy rayon fiber of regenerated cellulose and an at least partially neutralized copolymer of acrylic or methacrylic acid and a comonomer selected from an hydroxyalkyl (C.sub.2 -C.sub.6) ester of such acid or a styrenic monomer. The copolymer is present in an amount effective to increase the fluid holding capacity of the fiber. Masses of the fibers are useful as surgical dressings, tampons and other fluid-absorbing articles.Type: GrantFiled: September 10, 1982Date of Patent: August 16, 1983Assignees: Avtex Fibers Inc., Rohm & Haas Co.Inventors: Frederick R. Smith, Walter W. Toy, David Witiak
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Patent number: 4359564Abstract: Disclosed are homopolymers and copolymers of a monomer or a mixture of monomers having the formula ##STR1## in which the average value of n (n) is in the range from greater than 1 to about 10, being oligomeric usually prepared from acrylic acid. In the mixtures of such monomers, the number n may range from 1 to 30 or more. Also disclosed are methods of preparing the polymers, methods of using them, and articles of manufacture containing the polymers.Type: GrantFiled: March 14, 1980Date of Patent: November 16, 1982Assignee: Rohm & Haas Co.Inventors: Richard F. Merritt, Bjorn E. Larsson