Patents by Inventor Cindy L. Flenniken
Cindy L. Flenniken 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: 10654996Abstract: The present disclosure provides a method for crosslinking polyolefins through using a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier and related moisture-crosslinkable polyolefin-based compositions. The method is for crosslinking a first polyolefin includes the steps of: (A) selecting a second polyolefin being substantially-miscible with the first polyolefin and having particles of a morphology selected from the group consisting of powder and substantially spherical; (B) admixing the second polyolefin to the first polyolefin; (C) adsorbing a silane-crosslinking agent onto the second polyolefin, thereby rendering a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier; (D) melt blending the first polyolefin and the substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier, thereby yielding a moisture-crosslinkable polyolefin-based composition; and (E) crosslinking the moisture-crosslinkable polyolefin-based composition.Type: GrantFiled: May 30, 2018Date of Patent: May 19, 2020Assignee: Equistar Chemicals, LPInventors: Cindy L. Flenniken, Chun D. Lee
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Publication number: 20190300659Abstract: Provided herein are liquid-containing masterbatches and methods of forming liquid-containing masterbatches. The methods may include providing a mixture including an organosilane and porous particles; and heating the mixture at a temperature effective to adsorb at least a portion of the organosilane to one or more surfaces of the porous particles to form a polyolefin master batch. An organosilane may be present in a polyolefin master batch in an amount ranging from about 10% to about 50% by weight of the polyolefin master batch, and the porous particles may include [1] polypropylene, [2] a copolymer including (i) a propylene monomer and (ii) at least one of an ethylene monomer and a butene monomer, or [3] a combination thereof.Type: ApplicationFiled: April 3, 2019Publication date: October 3, 2019Applicant: EQUISTAR CHEMICALS, LPInventors: CINDY L. FLENNIKEN, CHUN D. LEE
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Publication number: 20180346698Abstract: The present disclosure provides a method for crosslinking polyolefins through using a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier and related moisture-crosslinkable polyolefin-based compositions. The method is for crosslinking a first polyolefin includes the steps of: (A) selecting a second polyolefin being substantially-miscible with the first polyolefin and having particles of a morphology selected from the group consisting of powder and substantially spherical; (B) admixing the second polyolefin to the first polyolefin; (C) adsorbing a silane-crosslinking agent onto the second polyolefin, thereby rendering a substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier; (D) melt blending the first polyolefin and the substantially-miscible, polyolefin-based, silane-crosslinking-agent carrier, thereby yielding a moisture-crosslinkable polyolefin-based composition; and (E) crosslinking the moisture-crosslinkable polyolefin-based composition.Type: ApplicationFiled: May 30, 2018Publication date: December 6, 2018Applicant: EQUISTAR CHEMICALS, LPInventors: CINDY L. FLENNIKEN, CHUN D. LEE
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Publication number: 20130296520Abstract: In the most preferred embodiments, the polypropylene jackets will meet the following specifications: a tensile strength of greater than or equal to 1500 psi (or greater than or equal to 10.3 MPa); and elongation at break of 150% or greater. Additionally, the aged requirements (121° C. for 168 hours) in most preferred embodiments are a retained tensile strength that is 70% of the original, and a retained elongation that is 70% of the original. Additionally, in most 10 preferred embodiments, the heat distortion at 131° C. is less than or equal to 30%. Additionally, in most preferred embodiments then carbon black percentage is 2% or greater. It should be understood, that in other embodiments of the polypropylene jackets, the various specifications and or requirements may fall outside some or all of these ranges.Type: ApplicationFiled: March 26, 2013Publication date: November 7, 2013Inventor: CINDY L. FLENNIKEN
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Patent number: 7232604Abstract: Flame retardant crosslinkable polyolefin compositions useful for the production of films, sheets and membranes are provided. The compositions are comprised of ethylene-silane copolymer, plastomer, flame retardant filler and, optionally, silanol condensation catalyst.Type: GrantFiled: July 28, 2005Date of Patent: June 19, 2007Assignee: Equistar Chemicals, LPInventors: Sebastian Joseph, Cindy L. Flenniken
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Patent number: 6124395Abstract: A treated carbon black may be produced by treating carbon black with at least one polyethylene glycol having a molecular weight of from about 1,000 to about 1,000,000. The treated carbon black may be used in forming polymeric compositions, such as semi-conductive and insulating compounds, for example for use in electrical cables.Type: GrantFiled: November 28, 1997Date of Patent: September 26, 2000Assignee: Cabot CorporationInventors: Cindy L. Flenniken, Jameel Menashi, Robert S. Whitehouse
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Patent number: 5889117Abstract: A semi-conductive or insulating composition includes an ethylene/octene copolymer and at least one additional polymer, such as ethylene/vinyl acetate. The composition may also include carbon black and other additives. The composition may be used as a semi-conductive or insulating layer in such applications as electrical cables.Type: GrantFiled: September 5, 1996Date of Patent: March 30, 1999Assignee: BICC Cables CorporationInventor: Cindy L. Flenniken
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Patent number: 5747563Abstract: A treated carbon black may be produced by treating carbon black with at least one polyethylene glycol having a molecular weight of from about 1,000 to about 1,000,000. The treated carbon black may be used in forming polymeric compositions, such as semi-conductive and insulating compounds, for example for use in electrical cables.Type: GrantFiled: June 30, 1997Date of Patent: May 5, 1998Assignee: Cabot CorporationInventors: Cindy L. Flenniken, Jameel Menashi, Robert S. Whitehouse
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Patent number: 5725650Abstract: A treated carbon black may be produced by treating carbon black with at least one polyethylene glycol having a molecular weight of from about 1,000 to about 1,000,000. The treated carbon black may be used in forming polymeric compositions, such as semi-conductive and insulating compounds, for example for use in electrical cables.Type: GrantFiled: July 20, 1995Date of Patent: March 10, 1998Assignee: Cabot CorporationInventors: Cindy L. Flenniken, Jameel Menashi, Robert S. Whitehouse
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Patent number: 5556697Abstract: Vulcanizable semiconductive shield compositions contain a linear, single-site catalyzed polymer formed by polymerizing ethylene with at least one comonomer selected from C.sub.3 to C.sub.20 alpha-olefins; a carbon black selected from furnace carbon blacks that contain ash and sulfur in amounts of 50 ppm or less and have crystal dimensions L.sub.a and L.sub.c of 30 .ANG. or less, acetylene carbon blacks, and furnace carbon blacks having an ASTM grade of N-351; and a crosslinking agent. The compositions may be used to manufacture semiconductive shields for electrical conductors, such as power cables. The semiconductive shields exhibit improved processability, low water vapor transmission and low shrinkback, without abrading or corroding extrusion equipment.Type: GrantFiled: March 24, 1994Date of Patent: September 17, 1996Assignee: BICC Cables CorporationInventor: Cindy L. Flenniken