Patents by Inventor Laura B. Weaver
Laura B. Weaver 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: 10221304Abstract: The invention provides a composition comprising at least the following components: A) a first composition comprising a first ethylene/?-olefin block copolymer consisting of ethylene and C4-C8 ?-olefin comonomer; and where the first composition has a density from 0.87 g/cc to 0.90 g/cc, and a melt index (I2) from 6.0 to 20.0 g/10 min; B) at least one filler that is capable of being excited by an alternating electromagnetic field at a frequency greater than, or equal to 10 MHz; C) at least one flame retardant selected from the group consisting of i) from 30.0 to 50.0 wt % of one or more non-halogen, inorganic flame retardant compounds, based on the weight of the composition; and ii) from 8.0 to 30.0 wt % of one or more halogen-containing flame retardant compounds, based on the weight of the composition; and D) at least one polar polymer.Type: GrantFiled: September 30, 2015Date of Patent: March 5, 2019Assignee: Dow Global Technologies LLCInventors: Guang Ming Li, Laura B. Weaver, Jeffrey M. Cogen, Stefan Ultsch
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Patent number: 9783667Abstract: The instant invention provides a polymeric blend composition, injection molded articles, films and sheets made therefrom. The polymeric blend composition according to the present invention comprises: (a) a first component selected from the group consisting of an ethylene/alpha-olefin copolymer and a propylene/ethylene copolymer; wherein said ethylene/alpha-olefin co-polymer has density in the range of from 0.857 to 0.902 g/cm3, a melt index (I2) in the range of from 0.5 to 30 g/10 minutes, a DCS melting point temperature (second heat) in the range of from 40 to 99° C., a heat of fusion in the range of from 18 to 108 Jg?1, and a crystallinity in the range of from 6 to 37 weight percent; and wherein propylene/ethylene copolymer has a melt flow rate in the range of from 1 to 30 g/10 minutes, a DCS melting point temperature (second heat) in the range of from 55 to 85° C.Type: GrantFiled: September 16, 2014Date of Patent: October 10, 2017Assignee: Dow Global Technologies LLCInventors: Laura B. Weaver, Wei Wang, Guang Ming Li, Lena T. Nguyen
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Publication number: 20170233564Abstract: The invention provides a composition comprising at least the following components: A) a first composition comprising a first ethylene-based interpolymer; and where the first composition has a density less than, or equal to, 0.91 g/cc, and a melt index (I2) from 6.0 to 20.0 g/10 min; B) optionally, at least one filler that is capable of being excited by an alternating electromagnetic field at a frequency greater than, or equal to, 10 MHz; C) at least one flame retardant selected from the following: i) from 30.0 to 50.0 wt % of one or more non-halogen, inorganic flame retardant compounds, based on the weight of the composition; or ii) from 8.0 to 30.0 wt % of one or more halogen-containing flame retardant compounds, based on the weight of the composition; and D) at least one polar polymer.Type: ApplicationFiled: September 30, 2015Publication date: August 17, 2017Inventors: Guang Ming Li, Laura B. Weaver, Jeffrey M. Cogen, Stefan Ultsch
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Patent number: 9617399Abstract: A dielectrically-heatable inventive method employing a polyolefin-based formulation including at least 5 weight percent of a zeolite, ion exchanged with a Group I or II metal, wherein the zeolite includes 21 or less wt % of water, based on zeolite weight, measured as LOI at 575° C. for 1 hour; and a base polymer selected from certain homogeneously branched linear or substantially linear ethylene/?-olefin or homogeneously branched propylene/?-olefin copolymers copolymers, provided that the base polymer has a melt temperature less than 100° C. This formulation may be used to prepare a high frequency (HF) welded article having improved failure and welding strength properties, particularly a weld strength in excess of 7 lb/in (1.23 N/mm).Type: GrantFiled: December 21, 2012Date of Patent: April 11, 2017Assignee: Dow Global Technologies LLCInventors: Laura B. Weaver, Yushan Hu, Jose M. Rego
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Publication number: 20160194487Abstract: The instant invention provides a polymeric blend composition, injection molded articles, films and sheets made therefrom. The polymeric blend composition according to the present invention comprises: (a) a first component selected from the group consisting of an ethylene/alpha-olefin copolymer and a propylene/ethylene copolymer; wherein said ethylene/alpha-olefin co-polymer has density in the range of from 0.857 to 0.902 g/cm3, a melt index (I2) in the range of from 0.5 to 30 g/10 minutes, a DCS melting point temperature (second heat) in the range of from 40 to 99° C., a heat of fusion in the range of from 18 to 108 Jg?1, and a crystallinity in the range of from 6 to 37 weight percent; and wherein propylene/ethylene copolymer has a melt flow rate in the range of from 1 to 30 g/10 minutes, a DCS melting point temperature (second heat) in the range of from 55 to 85° C.Type: ApplicationFiled: September 16, 2014Publication date: July 7, 2016Inventors: Laura B. Weaver, Wei Wang, Guang Ming Li, Lena T. Nguyen
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Patent number: 9273203Abstract: Thermoplastic elastomer compositions including at least one elastomeric component and at least one semi-crystalline polymer are provided. In particular, thermoplastic elastomer composition characterized by an SRI less than or equal to 1.6 at 10000 Pa s, and less than 4.5 at 1000 Pa s for compositions with TMA at 1000 ?m greater than 85° C. are provided. Also provided are articles made from the thermoplastic elastomeric compositions.Type: GrantFiled: July 25, 2014Date of Patent: March 1, 2016Assignee: Dow Global Technologies LLCInventors: Laura B. Weaver, Ashish Batra, Kim L. Walton
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Publication number: 20150353718Abstract: The instant invention provides a blend composition suitable for injection molded articles. The blend composition suitable for injection molded article according to the present invention comprises: (a) from 50 to 80 percent by weight of a propylene/?-olefin interpolymer composition; (b) from 5 to 25 percent by weight of a homopolymer polypropylene, a random copolymer polypropylene, clarified random copolymer polypropylene, and combination thereof; and (c) from 5 to 39 percent by weight of a plasticizing agent; wherein said blend composition has a total haze of less than 25 percent.Type: ApplicationFiled: February 28, 2014Publication date: December 10, 2015Inventors: Laura B. Weaver, Jeffrey C. Munro, Kim L. Walton, Juan C. Tuberquia, Santosh S. Bawiskar
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Publication number: 20150247028Abstract: The present disclosure provides a composition that includes a low viscosity ethylene/a-olefin copolymer or a low viscosity functionalized ethylene/a-olefin copolymer and a solvent. Each copolymer has a melt viscosity less than or equal to 20.0 Pa.s (177° C.). The solvent is a non-aromatic and halogen-free solvent. The solvent has a boiling point from 100° C. to 170° C. The composition has a Relative Energy Difference (RED) less than or equal to 1.05 (J/cc)1/2, based on the Hansen Solubility Parameter.Type: ApplicationFiled: March 14, 2013Publication date: September 3, 2015Inventors: Brian Hai Yang Yu, Felipe A. Donate, Selim Yalvac, Laura B. Weaver, Jose M. Rego
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Patent number: 9023939Abstract: The invention provides a composition comprising at least one olefin multi-block interpolymer; at least one functionalized olefin-based polymer; and optionally at least one thermoplastic polyurethane. The invention also provides for articles prepared from the inventive compositions and for methods for making the same.Type: GrantFiled: October 15, 2012Date of Patent: May 5, 2015Assignee: Dow Global Technologies LLCInventors: Patricia Ansems, Ashish Batra, Laura B. Weaver, Lawrence J. Effler, H. Craig Silvis, Hamed Lakrout, Laura K. Mergenhagen
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Patent number: 9006380Abstract: This invention relates to polymer compositions comprising at least one ethylene/?-olefin interpolymer and a branched and/or high melt strength polypropylene, methods of making the polymer compositions, and molded, overmolded, extruded into profiles or thermoformed products made from the polymer compositions. The polymer compositions may have reduced post-thermoformed sheet and post extruded (profile) gloss properties and/or improved scratch-resistant properties.Type: GrantFiled: April 2, 2008Date of Patent: April 14, 2015Assignee: Dow Global Technologies LLCInventors: Laura B. Weaver, Douglas P. Waszeciak, Eddy I. Garcia-Meitin, Lisa C. Kohlenberg, Pankaj Gupta, Theresa J. Hermel-Davidock
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Publication number: 20150018478Abstract: A dielectrically-heatable inventive method employing a polyolefin-based formulation including at least 5 weight percent of a zeolite, ion exchanged with a Group I or II metal, wherein the zeolite includes 21 or less wt % of water, based on zeolite weight, measured as LOI at 575° C. for 1 hour; and a base polymer selected from certain homogeneously branched linear or substantially linear ethylene/?-olefin or homogeneously branched propylene/?-olefin copolymers copolymers, provided that the base polymer has a melt temperature less than 100° C. This formulation may be used to prepare a high frequency (HF) welded article having improved failure and welding strength properties, particularly a weld strength in excess of 7 lb/in (1.23 N/mm).Type: ApplicationFiled: December 21, 2012Publication date: January 15, 2015Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Laura B. Weaver, Yushan Hu, Jose M. Rego
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Publication number: 20140364572Abstract: A polyolefin-based composition showing improved weldability using high frequency (HF) includes (1) a base polymer selected from (a) a homogeneously branched, linear or substantially linear ethylene/?-olefin copolymer; (b) a homogeneously branched propylene/?-olefin copolymer; or (c) a combination thereof; and (2) at least one secondary component selected from (a) an ethylene vinyl acetate copolymer having from 5 to 40 wt % vinyl acetate; (b) an ethylene-ethyl acrylate having from 5 to 25 wt % ethyl acrylate; and (c) a combination thereof. The combination of the specified polyolefin with the specified secondary component, which is a polar polymer, makes these formulations HF weldable, with a cohesive welding failure, a weld strength for 10 mil thick film greater than 7 lb/in (1.23 N/mm) at a weld time of less than or equal to 6 seconds. The formulations may also exhibit good calendering processability and mechanical properties.Type: ApplicationFiled: December 21, 2012Publication date: December 11, 2014Applicant: Dow Global Technologies LLCInventors: Laura B. Weaver, Yushan Hu, Jose M. Rego, Guang M. Li, Sherrika D. Daniel, Kim L. Walton
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Publication number: 20140336328Abstract: Thermoplastic elastomer compositions including at least one elastomeric component and at least one semi-crystalline polymer are provided. In particular, thermoplastic elastomer composition characterized by an SRI less than or equal to 1.6 at 10000 Pa s, and less than 4.5 at 1000 Pa s for compositions with TMA at 1000 ?m greater than 85° C. are provided. Also provided are articles made from the thermoplastic elastomeric compositions.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Inventors: Laura B. Weaver, Ashish Batra, Kim L. Walton
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Patent number: 8829106Abstract: Thermoplastic compositions including component C, an ethylene/?-olefin interpolymer wherein the interpolymer has a Mooney Viscosity (ML 1+4, 125° C.) greater than, or equal to 55 and a ?Hf greater than, or equal to 36 J/g; and component D, a high density polyethylene (HDPE) are provided. In particular, the thermoplastic compositions are characterized by the ethylene/?-olefin interpolymer which is an ethylene/a-olefin/diene interpolymer having a rheology ratio (V0.1/V 100) at 190° C. greater than, or equal to 25. Also are provided the articles comprising the thermoplastic compositions.Type: GrantFiled: November 9, 2010Date of Patent: September 9, 2014Assignee: Dow Global Technologies LLCInventors: Laura B. Weaver, Ashish Batra, Kim L. Walton
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Publication number: 20130303680Abstract: Thermoplastic elastomer compositions including at least one elastomeric component and at least one semi-crystalline polymer are provided. In particular, thermoplastic elastomer composition characterized by an SRI less than or equal to 1.6 at 10000 Pa s, and less than 4.5 at 1000 Pa s for compositions with TMA at 1000 ?m greater than 85° C. are provided. Also provided are articles made from the thermoplastic elastomeric compositions.Type: ApplicationFiled: November 9, 2010Publication date: November 14, 2013Inventors: Laura B. Weaver, Ashish Batra, Kim L. Walton
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Patent number: 8404780Abstract: The adhesion between a low surface energy (i.e., nonpolar) material, e.g., a polyolefin such as polyethylene, and a high surface energy (i.e., polar) material, e.g., a polyester, polyurethane, polycarbonate or polylactic acid, is promoted by blending with the nonpolar material typically from 15 to less than 50 wt % of a diol-based thermoplastic polyurethane (d-TPU), e.g., a polydiene diol-based TPU, based on the combined weight of the nonpolar material and the d-TPU. The promoted adhesion allows for the effective painting, printing, over-molding or HF-welding of a nonpolar substrate, e.g., a polyolefin film, with a polar coating, e.g., a paint, ink, etc. Aqueous dispersions can also be made from the blend of nonpolar material and d-TPU.Type: GrantFiled: October 31, 2007Date of Patent: March 26, 2013Assignee: Dow Global Technologies LLCInventors: Laura B. Weaver, Ashish Batra, Patricia Ansems, Gary M. Strandburg, Matthew J. Kalinkowski
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Patent number: 8304496Abstract: The invention is directed to compositions comprising an elastomer component and a propylene component, and in which the elastomer component comprises at least one ethylene/?-olefin polymer, optionally containing a diene, and the polypropylene component comprises at least one branched polypropylene. Preferably, the elastomer component has a melt tan delta between about 0.7 and about 8, as measured by parallel plate rheometer at 0.1 rad/sec, 190° C., and 15 percent strain; and the ratio of the “melt tan delta of the elastomer component” to the “melt tan delta of the propylene component” is from 0.5 to 4. The invention also provides for method of making such compositions, and to low gloss articles prepared from the same. The inventive compositions are particularly suitable for fabricating thermoformed sheeting with reduced gloss.Type: GrantFiled: May 8, 2006Date of Patent: November 6, 2012Assignee: Dow Global Technologies LLCInventors: Laura B. Weaver, Douglas P. Waszeciak, Kim L. Walton
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Patent number: 8124234Abstract: The invention provides a composition comprising the following: at least one olefin-based polymer, at least one halogenated ethylene-based polymer, or at least one elastomer rubber; at least one thermoplastic polyurethane; and at least one polydiene- or polydiol-based polyurethane. These compositions are well-suited for promoting the adhesion between polar (for example, polyester, polycarbonate and polylactic acid) and non-polar materials and for the manufacture of, among other things, films, fibers, sheets and tie layers, tubes, adhesives, dispersions, protective apparel, footwear, coatings, laminates and foams.Type: GrantFiled: October 31, 2007Date of Patent: February 28, 2012Assignee: Dow Global Technologies LLCInventors: Laura B. Weaver, Ashish Batra, Patricia Ansems
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Publication number: 20100152361Abstract: This invention relates to polymer compositions comprising at least one ethylene/?-olefin interpolymer and a branched and/or high melt strength polypropylene, methods of making the polymer compositions, and molded, overmolded, extruded into profiles or thermoformed products made from the polymer compositions. The polymer compositions may have reduced post-thermoformed sheet and post extruded (profile) gloss properties and/or improved scratch-resistant properties.Type: ApplicationFiled: April 2, 2008Publication date: June 17, 2010Inventors: Laura B. Weaver, Douglas P. Waszeciak, Eddie L. Garcia-Meitin, Lisa C. Kohlenberg, Pankaj Gupta, Theresa J. Hermel-Davidock
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Publication number: 20100055358Abstract: The invention provides a composition comprising the following: at least one olefin multi-block interpolymer, at least one thermoplastic polyurethane, and at least one polydiene-based and/or polydiol-based polyurethane. These compositions are well-suited for promoting the adhesion between polar (for example, polyester, polycarbonate and polylactic acid) and non-polar materials and for the manufacture of, among other things, films, fibers, sheets and tie layers, tubes, adhesives, dispersions, protective apparel, footwear, coatings, laminates and foams.Type: ApplicationFiled: October 31, 2007Publication date: March 4, 2010Inventors: Laura B. Weaver, Ashish Batra, Patricia Ansems