Source: http://www.google.com/patents/US8101687?dq=6,123,819
Timestamp: 2015-04-01 06:18:54
Document Index: 240691406

Matched Legal Cases: ['Application No. 02759487', 'Application No. 02759487', 'Application No. 02', 'Application No. 02', 'Application No. 02', 'Application No. 02']

Patent US8101687 - Multimodal polyethylene material - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe present invention relates to a polyethylene resin having a multimodal molecular weight distribution, said resin being further characterized in that it has a density in the range of from about 0.925 g/ccm to about 0.950 g/ccm, a melt index (I2) In the range of from about 0.05 g/10 min to about 5 g/10...http://www.google.com/patents/US8101687?utm_source=gb-gplus-sharePatent US8101687 - Multimodal polyethylene materialAdvanced Patent SearchPublication numberUS8101687 B2Publication typeGrantApplication numberUS 11/634,503Publication dateJan 24, 2012Filing dateDec 6, 2006Priority dateAug 31, 2001Also published asCA2457430A1, CA2457430C, CN1545536A, CN100362049C, CN101230161A, CN101230161B, DE60202780D1, DE60202780T2, EP1425344A1, EP1425344B1, US7250473, US20040266966, US20070112160, WO2003020821A1Publication number11634503, 634503, US 8101687 B2, US 8101687B2, US-B2-8101687, US8101687 B2, US8101687B2InventorsDetlef Schramm, Wolfgang Quack, Julien Damen, Pak-Meng ChamOriginal AssigneeDow Global Technologies LlcExport CitationBiBTeX, EndNote, RefManPatent Citations (89), Non-Patent Citations (46), Classifications (17) External Links: USPTO, USPTO Assignment, EspacenetMultimodal polyethylene material
US 8101687 B2Abstract
Melt indices are expressed as I2 (determined according to ASTM D-1238, condition E, 190� C./2.16 kg). The ratio of I10 (measured according to ASTM D-1238, Condition N, 190� C./10 kg) to I2 is the melt flow ratio and designated as I10/I2.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3645992Feb 15, 1968Feb 29, 1972Du Pont CanadaProcess for preparation of homogenous random partly crystalline copolymers of ethylene with other alpha-olefinsUS3914342Jun 10, 1974Oct 21, 1975Dow Chemical CoEthylene polymer blend and polymerization process for preparation thereofUS4438238Jan 25, 1982Mar 20, 1984Sumitomo Chemical Company, LimitedMolecular weight distributionUS4461873Jun 22, 1982Jul 24, 1984Phillips Petroleum CompanyEthylene polymer blendsUS4547551Jun 25, 1984Oct 15, 1985Phillips Petroleum CompanyHigh and low molecular weight blends; stress resistanceUS4798081Dec 22, 1987Jan 17, 1989The Dow Chemical CompanyHigh temperature continuous viscometry coupled with analytic temperature rising elution fractionation for evaluating crystalline and semi-crystalline polymersUS4859749Jul 13, 1988Aug 22, 1989Hoechst AktiengesellschaftProcess for the preparation of a polyolefin with a wide molecular mass distributionUS4937299Feb 1, 1985Jun 26, 1990Exxon Research & Engineering CompanyCoordination catalyst containing metallocene and alumoxaneUS5055438Jun 4, 1990Oct 8, 1991Exxon Chemical Patents, Inc.Olefin polymerization catalystsUS5064802Jul 3, 1990Nov 12, 1991The Dow Chemical CompanyCyclopentadienyl, polymerization catalystsUS5089321Jan 10, 1991Feb 18, 1992The Dow Chemical CompanyComprising linear ethylene polymers with specific propertiesUS5132380Sep 12, 1991Jul 21, 1992The Dow Chemical CompanyMetallocene catalysts for olefin polymerizationUS5189192Jan 16, 1991Feb 23, 1993The Dow Chemical CompanyCoordination catalystsUS5218071Jun 22, 1992Jun 8, 1993Mitsui Petrochemical Industries, Ltd.Ethylene random copolymersUS5272236Oct 15, 1991Dec 21, 1993The Dow Chemical CompanyElastic substantially linear olefin polymersUS5278272Sep 2, 1992Jan 11, 1994The Dow Chemical CompanyElastic substantialy linear olefin polymersUS5374696Jan 21, 1993Dec 20, 1994The Dow Chemical CompanyCatalyzing the addition polymerization in presence of titanium metal complexes with cocatalystsUS5453410Dec 1, 1992Sep 26, 1995The Dow Chemical CompanyCatalyst compositionUS5470993May 12, 1994Nov 28, 1995The Dow Chemical CompanyTitanium(II) or zirconium(II) complexes and addition polymerization catalysts therefromUS5494874Aug 23, 1994Feb 27, 1996The Dow Chemical CompanyTitanium complexes with a cocatalyst as polymerization catalystsUS5532394Mar 19, 1993Jul 2, 1996The Dow Chemical CompanyContaining titanium, divalent moiety, linking group, monovalent anionic stabilizing groupUS5539076Feb 15, 1995Jul 23, 1996Mobil Oil CorporationBimodal molecular weight distribution polyolefinsUS5582923Nov 23, 1994Dec 10, 1996The Dow Chemical CompanyExtrusion compositions having high drawdown and substantially reduced neck-inUS5631069May 9, 1995May 20, 1997The Dow Chemical CompanyMedium modulus molded material comprising substantially linear polyethlene and fabrication methodUS5665800Oct 16, 1996Sep 9, 1997The Dow Chemical CompanyUseful in fibers, films, moldingsUS5674945Apr 26, 1995Oct 7, 1997Mitsui Petrochemical Industries, Ltd.Ethylene copolymer compositionUS5773155Jun 7, 1995Jun 30, 1998The Dow Chemical CompanyExtrusion compositions having high drawdown and substantially reduced neck-inUS5844045Nov 12, 1996Dec 1, 1998The Dow Chemical CompanyEthylene interpolymerizationsUS5858491Aug 22, 1997Jan 12, 1999Dow BelgiumA blow-molded container comprising a high density polymer of ethylene homo- or copolymer and a low density ethylene copolymer; improving gloss and impact strengthUS5863665Apr 21, 1997Jan 26, 1999The Dow Chemical CompanyHigh melt strength ethylene polymer; sealants, adhesives, abuse resistance layersUS5908679Oct 6, 1997Jun 1, 1999Hoechst AktiengesellschaftPipe of polyethylene having improved mechanical propertiesUS6136924Dec 13, 1995Oct 24, 2000Solvay (Societe Anonyme)Catalysis with transition metal compound and cocatalyst; molecular weight controlUS6194520Jun 28, 1993Feb 27, 2001Mobil Oil CorporationHigh density ethylene (co)polymer blend used in bottlesUS6225421Aug 20, 1998May 1, 2001Solvay Polyolefins Europe-Belgium (Societe Anonyme)Suspension polymerizing ethylene in polymerization reactor; withdrawing, degassing, subjecting mixture with ethylene, 1-hexene and optionally one alpha-olefin to suspension polymerizationUS6403717 *Jul 12, 2000Jun 11, 2002Univation Technologies, LlcMetallocene polymer with narrow to medium molecular weight distribution, narrow comonomer composition and controlled branching; second linear low density polyethylene; lower melt viscosity, improved optics, toughness; rsi, ccldi, pdi andUS6462135Jul 14, 1999Oct 8, 2002Basell Polyolefine GmbhPressure pipes for drinking water; hollow moldings for food and drink storage; high molecular weight copolymer and low molecular weight homopolymer; low residual aluminum content; stiff; stress cracking resistance; impact strengthUS6545093Oct 14, 1999Apr 8, 2003Basell Polyolefine GmbhBlend of a high molecular weight ethylene copolymer and a low molecular weight ethylene homo- or copolymer; environmental-stress-cracking resistance ESCR greater-than 150 hUS6787608Aug 16, 2002Sep 7, 2004Dow Global Technologies, Inc.Bimodal polyethylene composition and articles made therefromUS7250473Aug 28, 2002Jul 31, 2007Dow Global Technologies, Inc.polyethylene resin having multimodal molecular weight distribution, used as hot water conduitsUS7411023Oct 15, 2002Aug 12, 2008Borealis Technology OyPipe for hot fluidsUS20050228139Apr 7, 2005Oct 13, 2005Lee Ki SDoes not give off an odor, does not increase a load of an extruder, does not generate heat and die gum from polyethylene residue, keeps the characteristics of a thermoplastic resin to be recycled, is inexpensive, and can be molded into a flexible pipe that is convenient to be installedEP0036660A1Mar 23, 1981Sep 30, 1981Phillips Petroleum CompanyMethod for producing an olefin polymerization catalyst, catalyst and polymerization processEP0046537A2Aug 11, 1981Mar 3, 1982Phillips Petroleum CompanyA method of preparing a catalyst for the polymerization of olefinsEP0100843A1Jun 21, 1983Feb 22, 1984Phillips Petroleum CompanyEthylene polymer blendEP0100843B1Jun 21, 1983Apr 29, 1987Phillips Petroleum CompanyEthylene polymer blendEP0302242A1Jul 5, 1988Feb 8, 1989Hoechst AktiengesellschaftProcess for preparing a polyolefin with a large molecular weight distributionEP0308088A2Aug 24, 1988Mar 22, 1989Mobil Oil CorporationTerblends and films of LLDPE, LMW-HDPE and HMW-HDPEEP0416815A2Aug 30, 1990Mar 13, 1991The Dow Chemical CompanyConstrained geometry addition polymerization catalysts, processes for their preparation, precursors therefor, methods of use, and novel polymers formed therewithEP0423962A2Sep 28, 1990Apr 24, 1991Nippon Petrochemicals Company, LimitedEthylene polymer compositionsEP0492656A1Dec 27, 1991Jul 1, 1992Nippon Petrochemicals Company, LimitedPolyethylene compositionEP0503791A1Feb 24, 1992Sep 16, 1992Mobil Oil CorporationProcess for producing bimodal ethylene polymers in tandem reactorsEP0528523A1Jun 29, 1992Feb 24, 1993Mobil Oil CorporationImproved ethylene polymer film resinsEP0533154A1Sep 17, 1992Mar 24, 1993Phillips Petroleum CompanyEthylene polymersEP0603935A1Dec 13, 1993Jun 29, 1994SOLVAY (Soci�t� Anonyme)Process for producing an ethylene polymer composition, ethylene polymer composition and its useEP0739937A2Apr 15, 1996Oct 30, 1996Hoechst AktiengesellschaftTube made from polyethylene having improved mechanical propertiesEP0773258A2Nov 6, 1996May 14, 1997UNION CARBIDE CHEMICALS &amp; PLASTICS TECHNOLOGY CORPORATIONFilm extruded from a blend of ethylene copolymersEP0778289A1Feb 24, 1992Jun 11, 1997Mobil Oil CorporationProcess for producing bimodal ethylene polymers in tandem reactorsEP0783022A1Jul 24, 1996Jul 9, 1997Mitsui Petrochemical Industries, Ltd.Ethylenic polymer compositionEP0794200A2Mar 4, 1997Sep 10, 1997UNION CARBIDE CHEMICALS &amp; PLASTICS TECHNOLOGY CORPORATIONStaged reactor polymerisation processEP0881237A1May 26, 1997Dec 2, 1998Fina Research S.A.Process to produce bimodal polyolefins with metallocene catalysts using two reaction zonesEP0897934A1Aug 18, 1998Feb 24, 1999SOLVAY POLYOLEFINS EUROPE - BELGIUM (Soci�t� Anonyme)Process for the preparation of an ethylen polymer compositionEP0905153A1Sep 25, 1998Mar 31, 1999Fina Research S.A.Production of polyethylene having a broad molecular weight distributionEP1041090A1Mar 29, 1999Oct 4, 2000Fina Research S.A.Production of polyethylene having a broad molecular weight distributionEP1201711A1Oct 27, 2000May 2, 2002ATOFINA ResearchPolyethylene pipe resins and production thereofEP1448702A1Oct 15, 2002Aug 25, 2004Borealis Technology OyPipe for hot fluidsJPH09194643A Title not availableJPH10237235A Title not availableJPH11106574A Title not availableWO1993007187A1Sep 25, 1992Apr 15, 1993Du Pont CanadaCatalyst for ethylene polymerization at high temperaturesWO1993007188A1Sep 25, 1992Apr 15, 1993Du Pont CanadaActivation of catalyst in ethylene polymerization at high temperaturesWO1993007189A1Sep 25, 1992Apr 15, 1993Du Pont CanadaControl of a solution process for polymerization of ethyleneWO1994025523A1Apr 19, 1994Nov 10, 1994Dow Chemical CoFabricated articles made from ethylene polymer blendsWO1995005419A1Aug 8, 1994Feb 23, 1995Dow Chemical CoPolyolefin blends and their solid state processingWO1995030713A1May 9, 1995Nov 16, 1995Dow Chemical CoMedium modulus film comprising substantially linear polyethylene and fabrication methodWO1996018662A1Dec 8, 1995Jun 20, 1996Borealis Polymers OyProcess for preparing polyethyleneWO1997003124A1Jul 3, 1996Jan 30, 1997Borealis Polymers OyCable-sheathing compositionWO1997029152A2Feb 4, 1997Aug 14, 1997Buna Sow Leuna Olefinverb GmbhPolyethylene blendWO1999014271A1Sep 18, 1998Mar 25, 1999Dow Chemical CoNarrow mwd, compositionally optimized ethylene interpolymer composition, process for making the same and article made therefromWO1999035652A1Dec 22, 1998Jul 15, 1999Borealis Polymers OyAn insulating composition for an electric power cableWO2000001765A1Jul 1, 1999Jan 13, 2000Borealis Polymers OyPolymer composition for pipesWO2000006646A1Jul 14, 1999Feb 10, 2000Elenac GmbhLow odor polyethylene blendsWO2000018814A1Sep 24, 1999Apr 6, 2000Guy DebrasProduction of multimodal polyethyleneWO2000022040A1Sep 24, 1999Apr 20, 2000Borealis Polymers OyPolymer composition for pipesWO2000024821A1Oct 14, 1999May 4, 2000Thomas BluemelHigh mixture-quality bi-modal polyethylene blendsWO2000040620A1Jan 4, 2000Jul 13, 2000Borealis Polymers OyPolymer composition, a process for the production thereof and films prepared thereofWO2001002480A1Jun 20, 2000Jan 11, 2001Elenac GmbhPolyethylene molding material and pipe produced therewith with improved mechanical propertiesWO2001025328A1Sep 26, 2000Apr 12, 2001Stephen John BrownMultimodal polyolefin pipeWO2002036678A1Oct 25, 2001May 10, 2002Atofina ResPolyethylene pipe resins and production thereofWO2003020821A1Aug 28, 2002Mar 13, 2003Dow Global Technologies IncMultimodal polyethylene material* Cited by examinerNon-Patent CitationsReference1Adrian Hayes; Correspondence from Boult Wade Tennant dated Aug. 9, 2006, regarding EP1425344; Application No. 02759487.8-2109 Opposition.2Bengt Hagstrom, Prediction of melt flow rate (MFR) of bimodal polyethylene's based on MFR of their components, Swedish Institute for Fibre and Polymer Reasearch, 1997, p. 4:13, Sweden.3Bengt Hagstr�m, Prediction of melt flow rate (MFR) of bimodal polyethylene's based on MFR of their components, Swedish Institute for Fibre and Polymer Reasearch, 1997, p. 4:13, Sweden.4ELTEX TUB 131 N2010, Compound for pipes and fittings, SOLVAY polyethylene, 1996.5ELTEX TUB 131 N2010. Compound for pipes and fittings, SOLVAY polyethylene .6EP Opposition-Decision on Opposition Feb. 20, 2009; 9 pages.7EP Opposition�Decision on Opposition Feb. 20, 2009; 9 pages.8EP Opposition-Final Sub. from Borealis Tech. Oy before hearing Dec. 11, 2008; 13 pages.9EP Opposition�Final Sub. from Borealis Tech. Oy before hearing Dec. 11, 2008; 13 pages.10EP Opposition-Patent Proprietor's Response Dec. 11, 2008; 16 pages.11EP Opposition�Patent Proprietor's Response Dec. 11, 2008; 16 pages.12EP Opposition-Patentee's Appeal Apr. 30, 2009; 1 page.13EP Opposition�Patentee's Appeal Apr. 30, 2009; 1 page.14EP Opposition-Requests from Patent Proprietor Jan. 29, 2009; 13 pages.15EP Opposition�Requests from Patent Proprietor Jan. 29, 2009; 13 pages.16EP Opposition-Response from Basell Jan. 06, 2010; 4 pages.17EP Opposition�Response from Basell Jan. 06, 2010; 4 pages.18EP Opposition-Summons to Attend Oral Proceedings Nov. 30, 2007; 7 pages.19EP Opposition�Summons to Attend Oral Proceedings Nov. 30, 2007; 7 pages.20EPO Munich, Confirmation dated Aug. 11, 2006 to Adrian Hayes' Correspondence from Boult Wade Tennant dated Aug. 9, 2006, regarding EP1425344; Application No. 02759487.8-2109 Opposition.21EPO-Munich, Confirmation date Mar. 13, 2007 of receiving Hoffmann, Basell Polyolefins, GmbH; Correspondence dated Mar. 12, 2007, regarding EP 1 425 344; Application No. 02 759 487.8.22EPO-Munich, Confirmation dated Oct. 29, 2005 of Receiving Basell Hoffman correspondence and /Dr.Enderle Test Report, dated Oct. 24, 2005 regarding EP 1425344 and opponent Basell Polyolefins, GmbH, Germany.23EPO�Munich, Confirmation dated Oct. 29, 2005 of Receiving Basell Hoffman correspondence and /Dr.Enderle Test Report, dated Oct. 24, 2005 regarding EP 1425344 and opponent Basell Polyolefins, GmbH, Germany.24EPO-Munich, Confirmation dated Oct. 31, 2005 of Receiving J.P.H. Smith's GA No. 49650, correspondence dated Oct. 25, 2005, regarding EP 14253448; Dow Global Technologies, Inc. Opposition, OP008.25EPO-Munich, Confirmation on Apr. 28, 2007 of Receiving Micheline Roufosse's Total Petrochemcials, Correspondence dated Apr. 17, 2007, regarding MCR/OPP-50 EP; EP Application No. 02 759 487.8; EP 1425344 B1.26EPO-Munich, Confirmation on Oct. 31, 2005, of Receiving Francis Leyder's,Total Petrochemcials, Correspondence dated Oct. 21, 2005, regarding KS/OPP-50 EP; EP 1425344 B1; Multimodal polyethylene material.27Francis Leyder's,Total Petrochemcials, Correspondence dated Oct. 26, 2005, regarding KS/OPP-50 EP; EP 14253441; "Multimodal polyethylene material" including Opposition by Total Petrochemicals Research Feluy.28Hoffman correspondence and /Dr.Enderle Test Report, dated Oct. 24, 2005 regarding EP 1425344 and opponent Basell Polyolefins, GmbH, Germany.29Hoffman correspondence and /Dr.Enderle Test Report, dated Oct. 24, 2005 regarding EP 1425344 and opponent Basell Polyolefins, GmbH, Germany. (English Translation).30Hoffmann, Basell Polyolefins, GmbH; Correspondence dated Mar. 12, 2007, regarding EP 1 425 344; Application No. 02 759 487.8 (English Translation).31Interim Austalian Standard PE pipe compounds; AS 4131(int)-1993.32Interim Australian Standard, PE pipe compounds, AS 4131 (Int)-1993, Standards Association of Australia.33Interim Australian Standard, PE pipe compounds, AS 4131 (Int)�1993, Standards Association of Australia.34ISO/FDIS 10508:1995, Plastics piping systems for hot and cold water installations-Guidance for classification and design.35ISO/FDIS 10508:1995, Plastics piping systems for hot and cold water installations�Guidance for classification and design.36J.P.H. Smith's GA No. 49650, correspondence dated Oct. 25, 2005, regarding EP 1425344B; Dow Global Technologies, Inc. Opposition, OP008.37Micheline Roufosse, Total Petrochemcials, Correspondence dated Apr. 17, 2007, regarding MCR/OPP-50 EP; EP Application No. 02 759 487.8; EP 1425344 B1.38Niel Campbell; Notice of Opposition to European Patent; EPO Form 2300.404.93(int.ad.Dec. 1997) p. 4; dated Oct. 19, 2005 which includes Notice of Opposition regarding EP No. 1425344.39Non Patent Lit submitted in EP Opposition; ELTEX; Solvay polyetheylene; Compound for pipes and fittings. ELTEXTUB 131 N2010, 1996.40Non Patent Lit submitted in EP Opposition-ISO(International Organization of Standardization; ISO/FDIS;Plastic piping systems for hot and cold water installations-Guidance for classification and design, 2005.41Non Patent Lit submitted in EP Opposition�ISO(International Organization of Standardization; ISO/FDIS;Plastic piping systems for hot and cold water installations�Guidance for classification and design, 2005.42Scheirs et al, PE100 resins for pipe applications: continuing the development into the 21st century, Trends in Polymer Science, 4, 12, 408-415, Dec. 1996.43Scheirs et al., PE100 Resins for Pipe Applications, TRIP, Dec. 1996, pp. 408-415.44U.S. Appl. No. 60/316,401.45Wild et al, Journal of Polymer Science, Poly. Phys. Ed., vol. 20, p. 441 (1982).46Wild et al., Determination of Branching Distributions in Polyethylene and Ethylene Copolymers, J. of Polymer Sci., 1982, pp. 441-455, vol. 20.Classifications U.S. Classification525/240, 526/348, 526/348.1, 526/348.2International ClassificationC08L23/04, C08L23/12, C08L23/08, F16L11/04, C08F10/02Cooperative ClassificationC08L23/0815, C08L2205/02, C08L2308/00, C08L2205/025, C08L23/12, C08L2314/06European ClassificationC08L23/08A1, C08L23/12RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services