Patents by Inventor Michael J. Skowronski
Michael J. Skowronski 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: 20150329691Abstract: Embodiments of the present disclosure are directed towards a flame retardant foam formulation. As an example, the flame retardant formulation can include a mono-phosphonate having a hydroxyl group, a polyisocyanate having a functionality in a range from 2.0 to 10.0, wherein the polyisocyanate is present in an amount to provide for an isocyanate index of from 100 to 320, a compound having active hydrogen groups capable of reacting with the polyisocyanate, a blowing agent, and a catalyst.Type: ApplicationFiled: December 13, 2013Publication date: November 19, 2015Applicant: Dow Global Technologies LLCInventors: Michael J. Skowronski, Jayaraman Krishnamoorthy, David E. Snider, Hector Perez
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Publication number: 20140186611Abstract: Polyesters and polyol formulations comprising polyesters used in the preparation of polyisocyanurate rigid foams with improved green strength properties are provided. In some embodiments, a polyester which is the reaction product of (a) an aromatic component comprising 80 mole percent or greater of terephthalic acid, (b) at least one polyether polyol having a nominal functionality of 2, a molecular weight of 150 to 1,000 and a polyoxyethylene content of at least 70% by weight of the polyether polyol, (c) at least one glycol different than (b) having a nominal functionality of 2 and a molecular weight from 60 to 250, and (d) at least one polyol having a molecular weight of 60 to 250 and a nominal functionality of at least 3, wherein (a), (b), (c), and (d) are present in the reaction on a percent weight basis of 20 to 60 weight percent of (a), 20 to 50 weight percent of (b), 10 to 30 weight percent of (c), and 5 to 20 weight percent of (d) is provided.Type: ApplicationFiled: May 21, 2012Publication date: July 3, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Michael J. Skowronski, Kelly R. Flaherty, Jorge Jimenez, Woo-Sung Bae, Giuseppe Lista
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Publication number: 20140128488Abstract: Aerogel particles are impregnated with a volatile liquid. Organic polymer foams are made in the presence of the impregnated aerogel particles. The volatile liquid volatilizes during the foaming process, resulting in a composite foam in which the dispersed aerogel particle are filled with gas. The composite foams have exceptionally low thermal conductivities.Type: ApplicationFiled: June 25, 2012Publication date: May 8, 2014Inventors: Luca Lotti, Giuseppe Vairo, Michael J. Skowronski
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Publication number: 20100087560Abstract: Prepare a polyisocyanurate insulating foam that achieves a Class A rating in ASTM E108-05 testing with either EPDM or TPO membranes at a slope of 1.27 centimeters and achieves at least a grade 2 designation in ASTM method C-1289 compressive strength testing with a foamable mixture containing (a) 100 parts by weight polyol; (b) 2-9 parts by weight potassium and/or sodium carboxylate salts; (c) 0.05-0.45 parts by weight of one or more quaternary amine; (d) zero to 0.4 parts by weight of an additional catalyst selected from secondary amine, tertiary amine, tin and/or iron catalyst; (e) optionally a solvent; (f) an isocyanate containing compound; and (g) a blowing agent; wherein the molar ratio of (b) to (c) is in a range of 17:1 to 100:1.Type: ApplicationFiled: April 24, 2008Publication date: April 8, 2010Inventors: Steven P. Crain, Michael J. Skowronski
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Patent number: 5660926Abstract: A closed cell, rigid polymer foam which comprises the reaction product of a polyisocyanate and an isocyanate-reactive component in the presence of a catalyst and a hydrogen-containing blowing agent or a mixture of a hydrogen-containing blowing agent and at least one co-blowing agent wherein the isocyanate-reactive component comprises (a) a hydroxy terminated polyester having an equivalent weight greater than about 350, or (b) a mixture of the hydroxy terminated polyester with at least one other isocyanate-reactive compound. Foams prepared with the hydroxy terminated polyester have superior shrinkage resistance, strength and long-term insulating efficiency.Type: GrantFiled: December 9, 1996Date of Patent: August 26, 1997Assignees: The Celotex Corporation, Apache Products Co.Inventors: Michael J. Skowronski, Kenneth G. Trout
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Patent number: 5605940Abstract: A closed cell, rigid polymer foam which comprises the reaction product of a polyisocyanate and an isocyanate-reactive component in the presence of a catalyst and a hydrogen-containing blowing agent or a mixture of a hydrogen-containing blowing agent and at least one co-blowing agent wherein the isocyanate-reactive component comprises (a) a hydroxy terminated polyester having an equivalent weight greater than about 350, or (b) a mixture of the hydroxy terminated polyester with at least one other isocyanate-reactive compound. Foams prepared with the hydroxy terminated polyester have superior shrinkage resistance, strength and long-term insulating efficiency.Type: GrantFiled: February 13, 1995Date of Patent: February 25, 1997Assignees: The Celotex Corporation, Apache Products Co.Inventors: Michael J. Skowronski, Kenneth G. Trout
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Patent number: 5563180Abstract: Rigid, closed cell polyisocyanurate foams are prepared by reacting together a polyisocyanate and a polyester polyol or a mixture of a polyester polyol and at least one other isocyanate-reactive compound in the presence of (a) a hydrogen-containing blowing agent or a mixture of a hydrogen-containing blowing agent and at least one co-blowing agent and (b) a catalyst mixture comprising (i) a carboxylate salt of an alkali metal or an alkaline earth metal or mixtures thereof, (ii) a quaternary ammonium carboxylate salt, and (iii) optionally a tertiary amine, wherein the mole ratio of carboxylate metal salt: tertiary amine is a value greater than about 2:1, and the total moles of quaternary ammonium carboxylate salt are less than the combined moles of the carboxylate metal salt and the tertiary amine.Type: GrantFiled: July 10, 1995Date of Patent: October 8, 1996Assignee: The Celotex CorporationInventors: Michael J. Skowronski, Kenneth G. Trout
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Patent number: 4873268Abstract: A storage stable polyester polyol mixture is prepared by digesting polyalkylene terephthalate, particularly polyethylene terephthalate, with a digesting medium comprising a polycarboxylic acid component-containing polyol, wherein the polycarboxylic acid component has ring units with two ##STR1## groups on adjacent or alternate ring positions, the ring unit content of the polycarboxylic acid component being sufficient for improved storage stability of the digestion product. The polyester polyol mixture is useful in the preparation of cellular foam materials, particularly polyisocyanurate and polyurethane foams.Type: GrantFiled: October 14, 1986Date of Patent: October 10, 1989Assignee: Sloss Industries CorporationInventors: Richard K. Hallmark, Michael J. Skowronski, William D. Stephens
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Patent number: 4760099Abstract: A storage-stable premix composition for use in a foam-forming reaction with an organic polyisocyanate in the manufacture of a polyurethane or polyisocyanurate foam comprising(a) at least one polyol,(b) at least one halogenated organic blowing agent,(c) at least one amine catalyst, and(d) a stabilizing amount of at least one polyvalent metal-containing organometallic compound.Some organometallic compounds of the invention have a slight catalytic effect but do not have the pronounced activity of conventional urethane and isocyanurate catalysts such as dibutyltin dilaurate and stannous octoate.Type: GrantFiled: December 22, 1986Date of Patent: July 26, 1988Assignee: Sloss Industries CorporationInventors: John S. Canaday, Michael J. Skowronski, Michael E. Londrigan
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Patent number: 4714717Abstract: A polyester polyol suitable for use in a foam-forming reaction with an organic polyisocyanate in the manufacture of a polyurethane or polyisocyanurate foam, the polyester polyol being the reaction product of polycarboxylic acid and polyol components, wherein the polyol component comprises(a) at least one alkylene glycol of the formula:HO--R.sub.1 --OHwherein R.sub.1 is a straight or branched chain alkylene group having two to five carbon atoms, and is unsubstituted or substituted by at least one member selected from the group consisting of halogen, hydroxy, nitro and amino,(b) at least one higher alkylene glycol, and(c) optionally at least one additional polyol.Type: GrantFiled: April 6, 1987Date of Patent: December 22, 1987Assignee: Jim Walter Resources, Inc.Inventors: Michael E. Londrigan, Michael J. Skowronski
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Patent number: 4539341Abstract: A storage stable polyester polyol mixture is prepared by digesting polyalkylene terephthalate, particularly polyethylene terephthalate, with a digesting medium comprising a polycarboxylic acid component-containing polyol, wherein the polycarboxylic acid component has ring units with two ##STR1## groups on adjacent or alternate ring positions, the ring unit content of the polycarboxylic acid component being sufficient for improved storage stability of the digestion product. The polyester polyol mixture is useful in the preparation of cellular foam materials, particularly polyisocyanurate and polyurethane foams.Type: GrantFiled: February 22, 1984Date of Patent: September 3, 1985Assignee: Jim Walter Resources, Inc.Inventors: Richard K. Hallmark, Michael J. Skowronski, William D. Stephens
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Patent number: 4386983Abstract: A structural laminate comprises at least one planar facing sheet with a rigid foam attached to one surface of the facing sheet. The rigid foam may be any polymeric material which is capable of being foamed. Distributed substantially evenly throughout the foam is a mat of long glass fibers arranged in layers substantially parallel to the facing sheet. The process for producing this structural laminate comprises the steps of contacting a thin, substantially incompressible yet expansible mat of long glass fibers with a foam-forming mixture, positioning a facing sheet on each face of the mat, and passing the facing sheets having the mat and the foam-forming mixture therebetween through means for metering the amount of foam-forming mixture and causing it to fully penetrate between the fibers of said glass mat.Type: GrantFiled: November 16, 1981Date of Patent: June 7, 1983Assignee: The Celotex CorporationInventors: Donald E. Hipchen, Michael J. Skowronski, Joseph R. Hagan
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Patent number: 4362678Abstract: A process for producing a laminate of polyisocyanurate foam which is the reaction product of a polymethylene polyphenylisocyanate and a polyol which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane, ethoxylated pentaerythritol or ethoxylated glycerin. Laminates of such foams exhibit improved adhesion of the facing sheet.Type: GrantFiled: October 19, 1981Date of Patent: December 7, 1982Assignee: The Celotex CorporationInventors: Michael J. Skowronski, Alberto DeLeon
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Patent number: 4346133Abstract: A structural laminate comprises at least one planar facing sheet with a rigid foam attached to one surface of the facing sheet. The rigid foam may be any polymeric material which is capable of being foamed. Distributed substantially evenly throughout the foam is a mat of long glass fibers arranged in layers substantially parallel to the facing sheet. The process for producing this structural laminate comprises the steps of contacting a thin, substantially incompressible yet expansible mat of long glass fibers with a foam-forming mixture, positioning a facing sheet on each face of the mat, and passing the facing sheets having the mat and the foam-forming mixture therebetween through means for metering the amount of foam-forming mixture and causing it to fully penetrate between the fibers of said glass mat.Type: GrantFiled: May 22, 1981Date of Patent: August 24, 1982Assignee: The Celotex CorporationInventors: Donald E. Hipchen, Michael J. Skowronski, Joseph R. Hagan
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Patent number: 4311801Abstract: A process for producing a laminate of polyisocyanurate foam which is the reaction product of a polymethylene polyphenylisocyanate and a polyol which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane, ethoxylated pentaerythritol or ethoxylated glycerin. Laminates of such foams exhibit improved adhesion of the facing sheet.Type: GrantFiled: January 18, 1980Date of Patent: January 19, 1982Assignee: The Celotex CorporationInventors: Michael J. Skowronski, Alberto DeLeon
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Patent number: 4284683Abstract: A structural laminate comprises at least one planar facing sheet with a rigid foam attached to one surface of the facing sheet. The rigid foam may be any polymeric material which is capable of being foamed. Distributed substantially evenly throughout the foam is a mat of long straight glass fibers arranged in layers substantially parallel to the facing sheet. The process for producing this structural laminate comprises the steps of contacting a thin, substantially incompressible yet expansible mat of long straight glass fibers with a foam-forming mixture on each face of the mat, and passing the facing sheets having the mat and the foam-forming mixture there between through the nip of two rotating rolls.Type: GrantFiled: September 28, 1979Date of Patent: August 18, 1981Assignee: The Celotex CorporationInventors: Donald E. Hipchen, Michael J. Skowronski, Joseph R. Hagan
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Patent number: 4212917Abstract: A process for producing a laminate of polyisocyanurate foam which is the reaction product of a polymethylene polyphenylisocyanate and a polyol which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane, ethoxylated pentaerythritol or ethoxylated glycerin. Laminates of such foams exhibit improved adhesion of the facing sheet.Type: GrantFiled: June 1, 1978Date of Patent: July 15, 1980Assignee: The Celotex CorporationInventors: Michael J. Skowronski, Alberto DeLeon
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Patent number: 4169921Abstract: An improved polyisocyanurate comprising polymethylene polyphenylisocyanate having a functionality of 2.1 to 3.2 and having an equivalent weight between 120 and 180; a polyol having an equivalent weight between 30 and 100; certain tertiary amino phenols; an alkali metal carboxylate, and a blowing agent.These compositions exhibit an advantageous cream time, firm time, tack free time, and a low friability.Type: GrantFiled: October 13, 1976Date of Patent: October 2, 1979Assignee: The Celotex CorporationInventors: Ernest K. Moss, Alberto DeLeon, Michael J. Skowronski
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Patent number: 4118533Abstract: A structural laminate comprises at least one planar facing sheet with a rigid foam attached to one surface of the facing sheet. The rigid foam is characterized in that the major recurring chemical linkage therein is the isocyanurate moiety. Distributed substantially evenly throughout the foam is a mat of long straight glass fibers arranged in layers substantially parallel to the facing sheet. The process for producing this structural laminate comprises the steps of contacting a thin, substantially incompressible yet expansible mat of long straight glass fibers with a foam-forming mixture of an organic polyisocyanate and a diol, positioning a facing sheet on each face of the mat, and passing the facing sheets having the mat and the foam-forming mixture there between through the nip of two rotating rolls.Type: GrantFiled: January 19, 1976Date of Patent: October 3, 1978Assignee: CelotexInventors: Donald E. Hipchen, Michael J. Skowronski, Joseph R. Hagan
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Patent number: D488205Type: GrantFiled: May 6, 2003Date of Patent: April 6, 2004Inventor: Michael J. Skowronski