Patents by Inventor Peter P. Policastro
Peter P. Policastro 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: 5309925Abstract: A reflective metallic foil is modified so that an incident laser beam is diffused into multiple beams to dissipate the energy of the incident beam. The surface can have protrusions that range from 0.3 to 10,000 microns high with an average diameter of from 1 to 1,000 microns and an average spacing between protrusions of from 0.2 to 5,000 microns. The surface of the metallic foil can be provided with a first type pattern consisting of protrusions and indentations having an optimum range of 0.3 to 20 microns deep having average optimum diameter of 2 to 40 microns with an average optimum spacing between protrusions of 1 to 100 microns or a second type pattern consisting of protrusions and indentations having an optimum range of 20 to 100 microns deep having an average optimum diameter of 20 to 100 microns with an average optimum spacing of from 20 to 200 microns. The second type pattern can be superimposed on patterns of the first type.Type: GrantFiled: June 15, 1993Date of Patent: May 10, 1994Assignee: Med-Genesis, Inc.Inventor: Peter P. Policastro
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Patent number: 5243009Abstract: Silicone-polycarbonate block copolymers are provided resulting from the reaction of certain siloxy aromatic imide siloxanes or hydroxyaromatic ester siloxanes which are made by effecting reaction between an organosiloxane having terminal aromatic anhydride groups or aromatic haloacyl groups which are each attached to silicon by silicon arylene linkages with an appropriate bishydroxyarylene compounds or hydroxyarylene amino compound. The aforementioned hydroxyaromatic imide siloxanes or hydroxyaromatic ester siloxanes are then phosgenated with a dihydric phenol or an aromatic bischloroformate. The silicone-polycarbonate block copolymers have been found to be flame retardant and useful as dielectric films and membranes, and as flame retardants in aromatic polycarbonates.Type: GrantFiled: March 16, 1992Date of Patent: September 7, 1993Assignee: General Electric CompanyInventors: Jonathan D. Rich, Philip J. McDermott, Gary C. Davis, Peter P. Policastro, Karen A. Regh, Pamela K. Hernandez, Thomas L. Guggenheim
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Patent number: 5039454Abstract: A fire barrier composition in the form of a zinc-containing magnesium oxychloride cement is described. The composition exhibits a prolonged pot-life as well as reduced thermal popping when applied to a substrate as a coating. The fire barrier composition can be used for rendering a flammable substrate fire resistant and for encapsulating lead paint.Type: GrantFiled: May 17, 1990Date of Patent: August 13, 1991Inventors: Peter P. Policastro, Raj S. Tarneja
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Patent number: 4945148Abstract: Silicone-polycarbonate block copolymers are provided resulting from the reaction of certain siloxy aromatic imide siloxanes or hydroxyaromatic ester siloxanes which are made by effecting reaction between an organosiloxane having terminal aromatic anhydride groups or aromatic haloacyl groups which are each attached to silicon by silicon arylene linkages with an appropriate bishydroxyarylene compounds or hydroxyarylene amino compound. The aforementioned hydroxyaromatic imide siloxanes or hydroxyaromatic ester siloxanes are then phosgenated with a dihydric phenol or an aromatic bischloroformate. The silicone-polycarbonate block copolymers have been found to be flame retardant and useful as dielectric films and membranes, and as flame retardants in aromatic polycarbonates.Type: GrantFiled: March 6, 1989Date of Patent: July 31, 1990Assignee: General Electric CompanyInventors: Jonathan D. Rich, Philip J. McDermott, Gary C. Davis, Peter P. Policastro, Karen A. Regh, Pamela K. Hernandez, Thomas L. Guggenheim
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Patent number: 4945147Abstract: There is provided by the present invention aromatic polyester-siloxane block copolymers which can be made by effecting the condensation between tetramethyldisiloxane bisbenzoic acid or acid chloride with a dihydric phenol such as bisphenol A or in combination with a mixture of such tetramethyldisiloxane bisbenzoic acid and aromatic acids, such as terephthalic acid or isophthalic acid. The aromatic polyester-siloxane block copolymers can be used as molding compounds, extruded films, in making composite matrix materials and as flame retardants for aromatic polycarbonates.Type: GrantFiled: March 6, 1989Date of Patent: July 31, 1990Assignee: General Electric CompanyInventors: Peter P. Policastro, Pamela K. Hernandez, Sandra A. Swint, Gary C. Davis, Jonathan D. Rich, Philip J. McDermott, Thomas L. Guggenheim
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Patent number: 4920191Abstract: Liquid crystalline polyester-siloxanes are provided resulting from the condensation of hydroxybenzoic acid with a mixture of 4,4'-(1,1,3,3-tetramethyl-1,3-disiloxanediyl)bisbenzoic acid and a dihydric phenol such as biphenol or hydroquinone. Terephthalic acid also can be used.Type: GrantFiled: March 6, 1989Date of Patent: April 24, 1990Assignee: General Electric CompanyInventors: Matthew E. Langer, Peter P. Policastro, Allan R. Shultz
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Patent number: 4916194Abstract: Flame retardant aromatic polycarbonate compositions are provided resulting from the use of certain poly(arylene silicon) materials in combination with aromatic polycarbonates. Included among the poly(arylene silicon) materials are aromatic polyester silioxanes, aromatic polyimide siloxanes and aromatic polysilphenylenes.Type: GrantFiled: March 6, 1989Date of Patent: April 10, 1990Assignee: General Electric CompanyInventors: Peter P. Policastro, Pamela K. Hernandez, Gary C. Davis, Jonathan D. Rich
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Patent number: 4826916Abstract: Polyimidesiloxane coating compositions resulting from the intercondensation in the presence of methylanisole of various dianhydrides such as 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]-propane dianhydride or bis(phthalicanhydride)tetramethyldisiloxane, or mixtures thereof with organic diamine such as toluenediamine, aminoalkyl terminated polydimethylsiloxane or oxydianiline.Type: GrantFiled: February 27, 1987Date of Patent: May 2, 1989Assignee: General Electric CompanyInventors: Peter P. Policastro, Pamela K. Hernandez, Jonathan D. Rich
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Patent number: 4820781Abstract: Polyetherimide-silicone copolymer blends are provided having improved resistance to water absorption and a T.sub.g of at least 190.degree. C.Type: GrantFiled: February 22, 1988Date of Patent: April 11, 1989Assignee: General Electric CompanyInventors: Peter P. Policastro, Pamela K. Hernandez, Mark W. Davis
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Patent number: 4795680Abstract: Polyimide-siloxanes are provided resulting from the intercondensation of organic diamines with organosiloxanes having terminal silyl-substituted aromatic organic anhydride groups. Semiconductor devices and composites using such polyimidesiloxanes as dielectric or passivating layers, films, adhesives and composites are also provided.Type: GrantFiled: February 5, 1987Date of Patent: January 3, 1989Assignee: General Electric CompanyInventors: Jonathan D. Rich, Peter P. Policastro, Pamela K. Hernandez
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Patent number: 4739089Abstract: A method for making certain silylaryl ketones is provided by acylating a silarylene with an arylacyl halide in the presence of a Friedel-Crafts catalyst. Silicon containing arylketones are also provided.Type: GrantFiled: February 24, 1987Date of Patent: April 19, 1988Assignee: General Electric CompanyInventor: Peter P. Policastro
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Patent number: 4678839Abstract: Mixtures of polyphenylene ethers, lactams such as .epsilon.-caprolactam and lactam polymerization catalysts, preferably basic reagents, may be polymerized. There is preferably also present a lactam polymerization promoter, especially a functionalized polyphenylene ether. Polymerization produces resinous compositions including phenylene etheramide copolymers, especially block and/or graft copolymers. Said resinous compositions may be molded into articles having a number of advantageous properties.Type: GrantFiled: July 8, 1985Date of Patent: July 7, 1987Assignee: General Electric CompanyInventors: John E. Hallgren, Peter P. Policastro, Herbert S. Chao, Bruce C. Johnson
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Patent number: 4675367Abstract: Silyl polyamides are prepared by reacting a silyl anhydride or imide, preferably a polysiloxane anhydride, with a lactam such as .epsilon.-caprolactam. The preferred materials are in the nature of A-B or A-B-A block polyamide polysiloxanes. They may be used as elastomers and adhesives or, in certain instances, in the formation of thermoset compositions.Type: GrantFiled: May 8, 1986Date of Patent: June 23, 1987Assignee: General Electric CompanyInventors: Peter P. Policastro, John E. Hallgren
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Patent number: 4675372Abstract: A method is provided for making homogeneous fluid reaction products of aminolactam and organic anhydride substituted polydiorganosiloxane. These fluid reaction products can be used in RIM and laminating applications to make shaped, crosslinked, silicone amide block polymers.Type: GrantFiled: April 21, 1986Date of Patent: June 23, 1987Assignee: General Electric CompanyInventor: Peter P. Policastro
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Patent number: 4668754Abstract: Silicone-polyamide block polymers are provided which result from the reaction of lactam and silicone having chemically combined arylacyl or arylisocyanato groups. Silicone having terminal aryllactam groups useful for making silicon-polyamide also are provided.Type: GrantFiled: July 22, 1985Date of Patent: May 26, 1987Assignee: General Electric CompanyInventors: Peter P. Policastro, Jonathan D. Rich
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Patent number: 4603177Abstract: Crosslinkable polyamide blends are provided of lactam, a silicon substituted lactam and a base polymerization catalyst. The crosslinkable blends can be reinforced and converted to polyamide parts by standard molding techniques.Type: GrantFiled: February 27, 1985Date of Patent: July 29, 1986Assignee: General Electric CompanyInventors: Peter P. Policastro, Herbert S. Chao
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Patent number: 4599393Abstract: A method is provided for making polyamides and silicone polyamide block and graft polymers by heating a mixture of a lactam in the presence of a silicon containing material, such as a silyl lactam, and a mixture of fluoride ion catalyst and a promoter such as an organic isocyanate. The resulting polyamides or silicon polyamide block or graft polymers can be utilized to make silicone elastomeric adhesives or injection moldable polyamides.Type: GrantFiled: April 29, 1985Date of Patent: July 8, 1986Assignee: General Electric CompanyInventor: Peter P. Policastro