Patents by Inventor Sabrina Fregni
Sabrina Fregni 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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Publication number: 20240052160Abstract: The present invention provides self-extinguishing flexible polyurethane foams, reaction mixtures and methods for making them, wherein the foam forming reaction mixture comprises an isocyanate component of one or more aromatic polyisocyanate containing two or more aromatic or phenyl groups, and an aromatic phosphorus containing flame retardant, and, separately, a polyol component which is a mixture of one or more, first polyols and one or more high molecular weight polyols, and from 7.5 to 17.5 wt. %, based on the weight of the polyol component, of a brominated polyether flame retardant having a bromine content of from 30 to 40 wt. %, and having an average hydroxyl functionality of from 2.3 to 3.5, one or more catalysts, and one or more blowing agents. The flexible polyurethane foam has a gross density of from 200 to 280 g/l.Type: ApplicationFiled: June 2, 2021Publication date: February 15, 2024Inventors: Antonio Papa, Giuliano Guidetti, Sabrina Fregni
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Publication number: 20220298292Abstract: A composition for producing a flame retardant open-celled semi-rigid polyurethane foam including: (a) at least one polyisocyanate, (b) at least one polyol, (c) at least one expandable graphite, (d) at least one blowing agent, (e) at least one catalyst, (f) at least one liquid flame retardant, (g) at least one cell opener, (h) at least one ethoxylated alcohol, and (i) at least one antioxidant; a process for producing the above composition; a flame retardant open-celled semi-rigid polyurethane foam produced using the above composition; and a process for producing the above flame-retardant open-celled semi-rigid polyurethane foam.Type: ApplicationFiled: July 29, 2020Publication date: September 22, 2022Inventors: Sabrina Fregni, Giuliano Guidetti, Ignacio Tello Lopez
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Patent number: 10815331Abstract: The present invention discloses a polymeric polyol composition useful for making polyurethane polymers, especially polyurethane foams. Said polyurethane polymer foams demonstrate a good balance of mechanical properties, physical properties, and low emissions. The polymeric polyol composition is the reaction product(s) of (i) a polyamine initiator composition comprising the polymerization product(s) of aminoethylpiperazine with (ii) at least one epoxide compound, at least one glycidyl ether compound, or mixtures thereof.Type: GrantFiled: June 7, 2017Date of Patent: October 27, 2020Assignee: Dow Global Technologies LLCInventors: Michael T. Malanga, Sabrina Fregni, George J. Frycek, Stephen W. King, Jean-Paul Masy, Sadeka Onam
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Publication number: 20200325268Abstract: Disclosed is a method for producing an open cell low-density semi-rigid polyurethane foam suitable for general use as a thermal insulating material and/or acoustical applications. The method comprises producing a flame-retardant open-celled semi-rigid polyurethane foam having an overall density of 5 to 30 kg/m2 by reacting (a) a polyisocyanate and (b) a polyol having a molecular weight of 100 to 10,000, in the presence of (c) 2,2-bis(chloromethyl)-trimethylene bis(bis(2-chloroethyl)phosphate, (d) blowing agent, and (e) optional additional components.Type: ApplicationFiled: May 23, 2017Publication date: October 15, 2020Inventors: Giuliano Guidetti, Sabrina Fregni
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Publication number: 20190330405Abstract: The present invention discloses a polymeric polyol composition useful for making polyurethane polymers, especially polyurethane foams. Said polyurethane polymer foams demonstrate a good balance of mechanical properties, physical properties, and low emissions. The polymeric polyol composition is the reaction product(s) of (i) a polyamine initiator composition comprising the polymerization product(s) of aminoethylpiperazine with (ii) at least one epoxide compound, at least one glycidyl ether compound, or mixtures thereof.Type: ApplicationFiled: June 7, 2017Publication date: October 31, 2019Applicant: Dow Global Technologies LLCInventors: Michael T. Malanga, Sabrina Fregni, George J. Frycek, Stephen W. King, Jean-Paul Masy, Sadeka Onam
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Publication number: 20180319926Abstract: The present invention relates to a reactive formulation used to make a polyurethane foam which is particularly suited for use in under the hood vehicle applications which require sound deadening and vibration management and a process to make said foam. In particular, the polyurethane foam is made from a reactive formulation comprising an A side comprising (i) one or more organic isocyanate and a B side comprising (ii) one or more isocyanate-reactive component, (iii) a carbon nanofiller; and (iv) one or more additional component selected from a catalyst, a blowing agent, a cell opener, a surfactant, a crosslinker, a chain extender, a filler, a colorant, a pigment, an antistatic agent, reinforcing fibers, an antioxidant, a preservative, or an acid scavenger.Type: ApplicationFiled: October 26, 2016Publication date: November 8, 2018Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Sabrina Fregni, Jun Cai, Selvaggia Landi
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Publication number: 20180148535Abstract: The present invention discloses a tertiary amine initiator and polymeric polyol compositions made therefrom useful for making polyurethane polymers, especially polyurethane foams. Said polyurethane polymer foams demonstrate a good balance of mechanical properties, physical properties, and low emissions. The tertiary amine initiator is one or more partially alkylated amine compound have the Structure II: RR1N—(R?—NH)y—(R?—NR4)x-y—R?—NR2R3 wherein R? is a C1 to C6 linear or branched alkyl group, R, R1, R2, and R3 are independently a hydrogen or a C1 to C6 linear or branched alkyl group with the proviso that at least one of R, R1, R2, and R3 is not hydrogen, R4 is a hydrogen or a C1 to C6 linear or branched alkyl group, x is from 1 to 33, y is from 0 to 32, and z is from 0 to 15, with the proviso that x-y is equal to or greater than 1 and the number of N—H bonds in (II) is greater than 0 and less than 8.Type: ApplicationFiled: June 3, 2016Publication date: May 31, 2018Inventors: Michael T. MALANGA, Stephen W. KING, George J. FRYCEK, Jean-Paul MASY, Sabrina FREGNI
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Patent number: 9751284Abstract: Skinned composites contain a plasticized polymer skin layer adhered to a layer of a polyurethane. The polyurethane is made from a reaction mixture that contains specified amounts of a polyester polyol and an acidic material. The presence of both the polyester polyol and acid leads to significantly improved adhesion between the polyurethane and skin layer. The invention is particularly useful when the skin is highly plasticized.Type: GrantFiled: June 20, 2013Date of Patent: September 5, 2017Assignee: Dow Global Technologies LLCInventors: Sara Cavalca, Sabrina Fregni
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Patent number: 9517607Abstract: PVC-skinned composites include a substrate, a skin and an intermediate polyurethane layer. The polyurethane layer is characterized in having a low molecular weight between crosslinks, i.e., is somewhat highly crosslinked. The high level of crosslinking in the polyurethane leads to improved performance of the skin layer. The skin layer retains its original color upon aging, is less prone to shrinking and other loss of physical properties, and adheres better to the polyurethane layer.Type: GrantFiled: June 20, 2013Date of Patent: December 13, 2016Assignee: Dow Global Technologies LLCInventors: Sara Cavalca, Sabrina Fregni
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Patent number: 9290605Abstract: Flexible polyurethane foams are made using certain hydrolysable silane compounds in the foam formulation. The hydrolysable silane compounds contain at least one isocyanate-reactive group and at least one hydrolysable silane group. The presence of the hydrolysable silane compound in the foam formulation leads to improved tensile, tear and elongation properties without an adverse effect on other important foam properties such as resiliency and hysteresis loss.Type: GrantFiled: August 16, 2012Date of Patent: March 22, 2016Assignee: Dow Global Technologies LLCInventors: Parvinder S. Walia, Bernard E. Obi, Venkat S. Minnikanti, William A. Koonce, Kamesh R. Vyakaranam, Ling Zhang, Sabrina Fregni
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Publication number: 20160016387Abstract: Skinned composites contain a plasticized polymer skin layer adhered to a layer of a polyurethane. The polyurethane is made from a reaction mixture that contains specified amounts of a polyester polyol and an acidic material. The presence of both the polyester polyol and acid leads to significantly improved adhesion between the polyurethane and skin layer. The invention is particularly useful when the skin is highly plasticized.Type: ApplicationFiled: June 20, 2013Publication date: January 21, 2016Inventors: Sara Cavalca, Sabrina Fregni
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Publication number: 20160016379Abstract: PVC-skinned composites include a substrate, a skin and an intermediate polyurethane layer. The polyurethane layer is characterized in having a low molecular weight between crosslinks, i.e., is somewhat highly crosslinked. The high level of crosslinking in the polyurethane leads to improved performance of the skin layer. The skin layer retains its original color upon aging, is less prone to shrinking and other loss of physical properties, and adheres better to the polyurethane layer.Type: ApplicationFiled: June 20, 2013Publication date: January 21, 2016Inventors: Sara Cavalca, Sabrina Fregni
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Publication number: 20140179815Abstract: Flexible polyurethane foams are made using certain hydrolysable silane compounds in the foam formulation. The hydrolysable silane compounds contain at least one isocyanate-reactive group and at least one hydrolysable silane group. The presence of the hydrolysable silane compound in the foam formulation leads to improved tensile, tear and elongation properties without an adverse effect on other important foam properties such as resiliency and hysteresis loss.Type: ApplicationFiled: August 16, 2012Publication date: June 26, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Parvinder S. Walia, Bernard E. Obi, Venkat S. Minnikanti, William A. Koonce, Kamesh R. Vyakaranam, Ling Zhang, Sabrina Fregni