Patents by Inventor Shaul M. Aharoni
Shaul M. Aharoni has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5493000Abstract: This invention relates to a branched fractal three dimensional porous polymer species which comprises rigid aromatic recurring units having electrophilic or nucleophilic reactive moieties on the exterior thereof. Another aspect of this invention relates to a star polymer comprising a polymeric core formed of the fractal polymers (FPS) of this invention having linear polymeric moieties grafted to the exterior thereof by way of residues formed by reaction between the reactive moieties on the exterior of the fractal polymer (FP) and complimentary reactive moieties on a linear polymer. Yet another aspect of this invention relates to polymeric composites comprising a polymer matrix having dispersed therein the star polymers of this invention.Type: GrantFiled: August 23, 1993Date of Patent: February 20, 1996Assignee: AlliedSignal Inc.Inventor: Shaul M. Aharoni
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Patent number: 5480944Abstract: This invention relates to polymeric interpenetrating blends comprising a polymer matrix having dispersed therein a branched fractal three dimensional polymer species which comprises rigid aromatic recurring units linked by electrophilic or nucleophilic reactive moieties or derivatives thereof.Type: GrantFiled: August 23, 1993Date of Patent: January 2, 1996Assignee: AlliedSignal Inc.Inventor: Shaul M. Aharoni
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Patent number: 5389721Abstract: A process for forming extended chain polyesters and block or graft polyesters or copolyesters which comprises the steps of (a) forming an intimate mixture of one or more polyesters, and an effective amount of one or more chain extension reagents, which are phosphorous (III)-containing compounds, and (b) heating said mixture for a time and at a temperature sufficient to form said extended chain, or graft or block copolyester or polyester; wherein the polyester used in step (a) contains no or substantially no substances which comprise elements from groups VA and VIA of the periodic table in elemental form; and wherein preferably, said polyesters conatain one or more elements belonging to groups IIA, IIIA, IVA, VB, IIB, IIIB, IVB, VIII and the lanthanides.Type: GrantFiled: May 27, 1994Date of Patent: February 14, 1995Assignee: AlliedSignal Inc.Inventor: Shaul M. Aharoni
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Patent number: 5326830Abstract: The invention relates to a process for forming chain extended polymers and graft and block polymers and copolymers which comprises the steps of: (a) forming an intimate mixture of one or more polymers and one or more effective phosphorus (III) chain extension reagent compounds; wherein at least one of said effective chain extension reagents has bonded to the phosphorus (III) atom at least one group which is a nitrogen-containing heteroaromatic moiety that is bonded through a nitrogen of the heteroaromatic moiety to the phosphorus (III) atom by a single bond; and (b) heating said mixture for a time and at a temperature sufficient to form said extended chain polymer or copolymer. Further embodiments relate to polymers and copolymers prepared in accordance with the process of this invention as well as articles formed from these polymers and polymer compositions comprising the polymeric materials of this invention.Type: GrantFiled: November 12, 1993Date of Patent: July 5, 1994Assignee: AlliedSignal Inc.Inventor: Shaul M. Aharoni
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Patent number: 5225244Abstract: Solid bodies having a reflective surface are provided with an anti-reflection coating of a terpolymer composition derived from (a) perfluoroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) hydroxyl- containing acrylate or methacrylate.Type: GrantFiled: August 14, 1992Date of Patent: July 6, 1993Assignee: Allied-Signal Inc.Inventors: Shaul M. Aharoni, Michael J. McFarland, Ajay Nahata, James T. Yardley
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Patent number: 5198267Abstract: Solid bodies having a reflective surface are provided with an anti-reflection coating of a fluoropolymer blends of (1) a terpolymer composition derived from (a) perfluoroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) hydroxyl-containing acrylate or methacrylate; and (2) an amorphous fluoropolymer.Type: GrantFiled: June 1, 1992Date of Patent: March 30, 1993Assignee: Allied-Signal Inc.Inventors: Shaul M. Aharoni, Ajay Nahata, James T. Yardley
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Patent number: 5183839Abstract: Copolymer compositions derived from (a) perfluroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) a hydroxyl-containing acrylate or methacrylate, in combination, can be cross-linked through internal esterification or anhydride formation. These product combine properties typical of fluorine-containing polymers with processability, including processability from solution.Type: GrantFiled: September 16, 1991Date of Patent: February 2, 1993Assignee: Allied-Signal Inc.Inventor: Shaul M. Aharoni
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Patent number: 5178955Abstract: Solid bodies having a reflective surface are provided with an anti-reflection coating of a terpolymer composition derived from (a) perfluoroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) hydroxyl- containing acrylate or methacrylate.Type: GrantFiled: October 25, 1991Date of Patent: January 12, 1993Assignee: Allied-Signal Inc.Inventors: Shaul M. Aharoni, Michael J. McFarland, Ajay Nahata, James T. Yardley
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Patent number: 5139879Abstract: Solid bodies having a reflective surface are provided with an anti-reflection coating of a fluoropolymer blends of (1) a terpolymer composition derived from (a) perfluoroalkylakyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) hydroxyl- containing acrylate or methacrylate; and (2) an amorphous fluoropolymer.Type: GrantFiled: November 21, 1991Date of Patent: August 18, 1992Assignee: Allied-Signal Inc.Inventors: Shaul M. Aharoni, Ajay Nahata, James T. Yardley
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Patent number: 5118579Abstract: Blends of amorphous fluoropolymers with copolymer compositions derived form (a) perfluroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) a hydroxyl-containing acrylate or methacrylate, in combination, can be cured to form coatings having properties typical of fluorine-containing polymers, with unusually low critical surface energy.Type: GrantFiled: September 20, 1991Date of Patent: June 2, 1992Assignee: Allied-Signal Inc.Inventors: Shaul M Aharoni, Ajay Nahata, James T. Yardley
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Patent number: 5061769Abstract: Copolymer compositions derived from (a) perfluoralkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) a hydroxyl-containing acrylate or methacrylate, in combination, can be cross-linked through internal esterification or anhydride formation. These product combine properties typical of fluorine-containing polymers with processability, including processability from solution.Type: GrantFiled: December 17, 1990Date of Patent: October 29, 1991Assignee: Allied-Signal Inc.Inventor: Shaul M. Aharoni
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Patent number: 4963311Abstract: A process for the production of graft polyester/polyamide copolymers useful in the manufacture of fibers which comprises intimately mixing derivatized polyester and suitable polyamide to form the graft copolymer, and thereafter spinning the graft copolymer into a fiber which is drawn.Type: GrantFiled: June 5, 1989Date of Patent: October 16, 1990Assignee: Allied-SignalInventors: Shaul M. Aharoni, Robert C. Morgan
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Patent number: 4767839Abstract: Poly(esteramide) having thermotropic polymorphic properties is characterized by the repeating structure ##STR1## where: x=integers from 1 to 14Y=integers from 3 to 9R.sub.1, R.sub.2 =Hwhen x+y is an odd integer, properties usually associated with liquid crystal polymers are seen, while when x+y is an even integer birefringence above a major endotherm is observed but the spontaneous flow property usually seen with liquid crystal polymers is absent.Type: GrantFiled: July 6, 1987Date of Patent: August 30, 1988Assignee: Allied-Signal Inc.Inventor: Shaul M. Aharoni
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Patent number: 4568720Abstract: A process for preparing extended chain polyesters, and block or graft polyester or copolyesters by forming an intimate mixture of one or more polyesters and an effective amount of one or more phosphite compounds, and thereafter heating the intimate mixture at a temperature and for a time sufficient to form the desired amount of the desired polyester or co-polyester.Type: GrantFiled: February 25, 1985Date of Patent: February 4, 1986Assignee: Allied Chemical CorporationInventors: Shaul M. Aharoni, Divakaran Masilamani
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Patent number: 4433116Abstract: A process for rapidly and substantially decreasing the melt index and increasing the viscosity of polymers of caprolactams during melt processing by forming a molten mixture of the polymer and a phosphite compound and heating the mixture until the desired change in melt index and viscosity are obtained.Type: GrantFiled: December 27, 1982Date of Patent: February 21, 1984Assignee: Allied CorporationInventors: Theodore Largman, Shaul M. Aharoni
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Patent number: 4417031Abstract: A process for preparing block, and/or graft copolymeric compositions by forming an intimate mixture of two or more polymers, at least one of which includes one or more amino junctions and at least one of the remaining polymers includes one or more carboxylic acid junctions and an effective amount of a phosphite compound, and thereafter heating the intimate mixture at a temperature and for a time sufficient to form the desired block, and/or graft copolymers.Type: GrantFiled: January 7, 1982Date of Patent: November 22, 1983Assignee: Allied CorporationInventors: Shaul M. Aharoni, Theodore Largman
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Patent number: 4417032Abstract: A process for preparing quasi-random copolymers is described which involves heating a mixture of polyamides in the presence of one or more phosphite promotor(s). The process is conducted at temperatures between about 265.degree. C. and 315.degree. C. with the process time generally ranging from about 2 to about 20 minutes. The process is especially useful for preparing copolymers from a mixture of poly(caproamide) and poly(hexamethylene adipamide). The copolymer products prepared in accordance with the process are particularly suitable for the production of plastic films which have improved properties as compared to either of the homopolymers.Type: GrantFiled: April 22, 1982Date of Patent: November 22, 1983Assignee: Allied CorporationInventors: Yash P. Khanna, Edith A. Turi, Shaul M. Aharoni, Theodore Largman
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Patent number: 4403052Abstract: A flame retarded, injection moldable, saturated, linear polyester composition contains red phosphorus as flame retardant and a metal iodide as phosphine suppressing agent. The metal is one of the groups 1a and 2b of the periodic table of elements with potassium iodide being the most preferred.The phosphine evolution of a poly(ethylene terephthalate) molding composition containing 4% red phosphorus as flame retardant is reduced to 0.3 ppm at the die and to 1.0 ppm in storage by the addition of 0.6% of potassium iodide.Type: GrantFiled: August 30, 1982Date of Patent: September 6, 1983Assignee: Allied CorporationInventors: Theodore Largman, Bruce Van Buskirk, Shaul M. Aharoni, Ian C. Twilley
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Patent number: 4390667Abstract: A process for decreasing the melt index and increasing the viscosity of polyamide compositions by adding thereto an effective amount of an aryl phosphate compound, and thereafter heating the composition until the desired changes in melt index or viscosity are attained.Type: GrantFiled: July 6, 1981Date of Patent: June 28, 1983Assignee: Allied CorporationInventors: Shaul M. Aharoni, Theodore Largman
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Patent number: 4390649Abstract: A molding composition of a terephthalate polyester such as PET, a plasticizing material and a crystal nucleating agent. The nucleating agent is a powdered metal hydroxide such as aluminum hydroxide, which raises the T.sub.cc of the composition and permits reduced cycling time and enables higher molecular weight polymer to be used in the molding process.Type: GrantFiled: February 18, 1982Date of Patent: June 28, 1983Assignee: Allied CorporationInventor: Shaul M. Aharoni