Patents by Inventor Richard W. Halle
Richard W. Halle 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: 20130266786Abstract: Polymer compositions including an ethylene-based polymer having a melt index of from about 0.1 g/10 min to about 5.0 g/10 min; a melt index ratio of from about 15 to about 30; a weight average molecular weight (Mw) of from about 20,000 to about 200,000; a molecular weight distribution (Mw/Mn) of from about 2.0 to about 4.5; and a density of from 0.900 to 0.920 g/cm3. Films having a thickness of 1 mil show a difference between the maximum seal strength and the minimum seal strength over the ranges of temperatures between 95.0° C. and 140.0° C. of ?1.00×102 grams/cm.Type: ApplicationFiled: March 12, 2013Publication date: October 10, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventors: Alan M. Malakoff, Richard W. Halle, Adriana S. Silva, Steve A. Best
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Patent number: 7135526Abstract: Blends of very low density polyethylene produced using metallocene catalysts (mVLDPE) and high density polyethylene (HDPE) are disclosed. The polymer blends include a metallocene-catalyzed VLDPE polymer having a density of less than 0.916 g/cm3, the VLDPE polymer preferably being linear and without long chain branching, and a HDPE polymer having a density of greater than 0.940 g/cm3. The polymer blends are particularly suitable in blown and cast film applications.Type: GrantFiled: June 22, 2001Date of Patent: November 14, 2006Assignee: Univation Technologies, LLCInventors: James M. Farley, Richard W. Halle, George Panagopoulos, Jerry M. Johnson
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Patent number: 7125933Abstract: Blends of very low density polyethylene produced using metallocene catalysts (mVLDPE) and linear low density polyethylene (LLDPE) are disclosed. The polymer blends include a metallocene-catalyzed VLDPE polymer having a density of less than 0.916 g/cm3, the VLDPE polymer preferably being linear and without long chain branching, and a LLDPE polymer having a density of from 0.916 to 0.940 g/cm3. The polymer blends are particularly suitable in blown and cast film applications.Type: GrantFiled: June 22, 2001Date of Patent: October 24, 2006Assignee: Univation Technologies, LLCInventors: Paul Masten German, James McLeod Farley, Richard W. Halle, George Panagopoulos
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Patent number: 6932592Abstract: A very low density polyethylene having a density of 0.890 to 0.915 and a Dart Drop value of at least about 450 g/mil or above is disclosed. Gas phase polymerization methods are also disclosed for making very low density linear polyolefins utilizing a metallocene catalyst, and the resulting polyolefin products. In a specific embodiment, a gas phase polymerization process is disclosed relating to the formation of a linear polyethylene having a very low density, e.g., ranging from 0.890 to 0.915, but with improved toughness.Type: GrantFiled: June 22, 2001Date of Patent: August 23, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: James M. Farley, Richard W. Halle, George Panagopoulos, Jerry M. Johnson, Douglas J. Laurent, Alan M. Malakoff
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Publication number: 20040072005Abstract: Blends of very low density polyethylene produced using metallocene catalysts (mVLDPE) and linear low density polyethylene (LLDPE) are disclosed. The polymer blends include a metallocene-catalyzed VLDPE polymer having a density of less than 0.916 g/cm3, the VLDPE polymer preferably being linear and without long chain branching, and a LLDPE polymer having a density of from 0.916 to 0.940 g/cm3. The polymer blends are particularly suitable in blown and cast film applications.Type: ApplicationFiled: October 28, 2003Publication date: April 15, 2004Inventors: Paul Masten German, Hames McLeod Farley, Richard W. Halle, George Panagopoulos
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Publication number: 20040014895Abstract: Blends of very low density polyethylene produced using metallocene catalysts (mVLDPE) and high density polyethylene (HDPE) are disclosed. The polymer blends include a metallocene-catalyzed VLDPE polymer having a density of less than 0.916 g/cm3, the VLDPE polymer preferably being linear and without long chain branching, and a HDPE polymer having a density of greater than 0.940 g/cm3. The polymer blends are particularly suitable in blown and cast film applications.Type: ApplicationFiled: May 21, 2003Publication date: January 22, 2004Inventors: James M Farley, Richard W Halle, Geeorge Panagopoulos, Jerry M Johnson
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Publication number: 20030213938Abstract: A very low density polyethylene having a density of 0.890 to 0.915 and a Dart Drop value of at least about 450 g/mil or above is disclosed. Gas phase polymerization methods are also disclosed for making very low density linear polyolefins utilizing a metallocene catalyst, and the resulting polyolefin products. In a specific embodiment, a gas phase polymerization process is disclosed relating to the formation of a linear polyethylene having a very low density, e.g., ranging from 0.890 to 0.915, but with improved toughness.Type: ApplicationFiled: December 13, 2002Publication date: November 20, 2003Inventors: James M. Farley, Richard W. Halle, George Panagopoulos, Jerry M. Johnson, Douglas J. Laurent, Alan M. Malakoff
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Patent number: 5500260Abstract: Bales of unvulcanized rubber, or compounding ingredients for unvulcanized rubber are packaged in film or bags made from an ethylene .alpha.-olefin copolymer having a Vicat softening point below 90.degree. C. and a melting point below 100.degree. C., and optionally a second ethylene copolymer is added to improve processability of the first ethylene copolymer. The second ethylene copolymer will contain more long-chain branches than the first ethylene copolymer. Such films may be included in a rubber compounding operation.Type: GrantFiled: June 17, 1994Date of Patent: March 19, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Richard W. Halle, Dirk J. Michiels, Jeffrey A. Middlesworth
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Patent number: 5462807Abstract: The invention concerns a certain class of polymers, their production into films and applications for their use. These polymers have unique properties which make them particularly well suited for use in polymeric films. These films are very useful in applications requiring heat sealability, particularly those applications containing an ionomer film.It has been discovered that polymers derived from metallocene catalyst systems surprisingly heat seal extremely well, as compared to polymer produced by conventional Ziegler-Natta catalysts, to a class of polymers known as ionomers.Type: GrantFiled: August 20, 1993Date of Patent: October 31, 1995Assignee: Exxon Chemical Patents Inc.Inventors: Richard W. Halle, Donna S. Davis, Charles R. Harris, Jr.
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Patent number: 5415905Abstract: Bales of unvulcanized rubber, or compounding ingredients for unvulcanized rubber are packaged in film or bags made from an ethylene .alpha.-olefin copolymer having a Vicat softening point below 90.degree. C. end a melting point below 100.degree. C., and optionally a second ethylene copolymer is added to improve processability of the first ethylene copolymer. The second ethylene copolymer will contain more long-chain branches than the first ethylene copolymer. Such films may be included in a rubber compounding operation.Type: GrantFiled: September 29, 1993Date of Patent: May 16, 1995Assignee: Exxon Chemical Patents Inc.Inventors: Jeffrey A. Middlesworth, Richard W. Halle, Dirk J. Michiels
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Patent number: 5376439Abstract: The present invention provides for a polymer composition comprising a blend of from about 25 to about 90% by weight of a very low density ethylene polymer having a density on the range of from about 0.88 to 0.925 g/cm.sup.3, a melt index of from about 0.5 to about 7.5 dg/min, a molecular weight distribution not greater than about 3.5 and a compositional distribution breadth index greater than about 70%, and from about 10 to about 75% by weight of a low to medium density ethylene polymer having a density of from about 0.910 to about 0.935, a melt index of from about 0.5 to about 20, a molecular weight distribution greater than about 3.5 and a compositional breadth index less than about 70%.The invention also provides for films prepared from this blend having single layer construction or having laminar ABA construction wherein the A or skin layers comprise the blend of this invention and the B or core layer comprises a different olefin polymer such as high density polyethylene.Type: GrantFiled: March 29, 1994Date of Patent: December 27, 1994Assignee: Exxon Chemical Patents Inc.Inventors: William J. Hodgson, Richard W. Halle, Charles L. Pierce