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31.发明专利
公开(公告)号：AU685331B2
公开(公告)日：1998-01-15
申请号：AU3947195
申请日：1995-10-04
Applicant: DOW CHEMICAL CO
Inventor： DEGROOT JACQUELYN A , HAZLITT LONNIE G , JAIN PRADEEP , KARANDE SEEMA V , MERGENHAGEN LAURA K , MOLDOVAN DAN G , STEWART KENNETH B , WHITEMAN NICOLE F
IPC: B65D81/34 , B29C47/00 , B29K23/00 , B29L9/00 , B32B27/32 , B65D1/00 , B65D65/40 , C08F110/02 , C08F210/08 , C08F210/16 , C08J5/18 , C08L23/04 , C08L23/06 , C08L23/08 , C08L23/16 , C09J123/08
Abstract: The subject invention provides a polymer mixture having high heat resistivity, low hexane extractive and controllably lower or higher modulus. The mixture is comprised of at least one first substantially linear ethylene polymer, Component (A), and at least one second ethylene polymer which is a homogeneously branched polymer, heterogeneously branched linear polymer or a non-short chain branched linear polymer. When fabricated into film, the mixture is characterized by a heat seal initiation temperature which is substantially lower than its Vicat softening point as well as a high ultimate hot tack strength. When fabricated as a molded article, the mixture is characterized by high microwave warp distortion while maintaining a lower modulus. The polymer mixture is particularly well-suited for use in multilayer film structures as a sealant layer for such applications as cook-in packages, hot-fill packages, and barrier shrink films. In molding applications, the mixture is well-suited as freezer-to-microwave food storage containers and lids which maintain good flexibility at low temperature to allow easy openability of such containers.
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公开(公告)号：FI972169A0
公开(公告)日：1997-05-21
申请号：FI972169
申请日：1997-05-21
Applicant: DOW CHEMICAL CO
Inventor： DEGROOT JACQUELYN A , HAZLITT LONNIE G , JAIN PRADEEP , KARANDE SEEMA V , MERGENHAGEN LAURA K , MOLDOVAN DAN G , STEWART KENNETH B , WHITEMAN NICOLE F
IPC: B65D81/34 , B29C47/00 , B29K23/00 , B29L9/00 , B32B27/32 , B65D1/00 , B65D65/40 , C08F110/02 , C08F210/08 , C08F210/16 , C08J5/18 , C08L23/04 , C08L23/06 , C08L23/08 , C08L23/16 , C09J123/08 , C08L
Abstract: The subject invention provides a polymer mixture having high heat resistivity, low hexane extractive and controllably lower or higher modulus. The mixture is comprised of at least one first substantially linear ethylene polymer, Component (A), and at least one second ethylene polymer which is a homogeneously branched polymer, heterogeneously branched linear polymer or a non-short chain branched linear polymer. When fabricated into film, the mixture is characterized by a heat seal initiation temperature which is substantially lower than its Vicat softening point as well as a high ultimate hot tack strength. When fabricated as a molded article, the mixture is characterized by high microwave warp distortion while maintaining a lower modulus. The polymer mixture is particularly well-suited for use in multilayer film structures as a sealant layer for such applications as cook-in packages, hot-fill packages, and barrier shrink films. In molding applications, the mixture is well-suited as freezer-to-microwave food storage containers and lids which maintain good flexibility at low temperature to allow easy openability of such containers.
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33.发明专利
公开(公告)号：CO4440533A1
公开(公告)日：1997-05-07
申请号：CO95049448
申请日：1995-10-20
Applicant: DOW CHEMICAL CO
Inventor： DEGROOT JACQUELYN A , LONNIE G HAZLITT , PRADEEP JAIN , SEEMA V KARANDE , MERGENHAGEN LAURA K , MOLDOVAN DAN G , STEWART KENNETH B , WHITEMAN NICOLE F
IPC: B65D81/34 , B29C47/00 , B29K23/00 , B29L9/00 , B32B27/32 , B65D1/00 , B65D65/40 , C08F110/00 , C08F110/02 , C08F210/08 , C08F210/16 , C08J5/18 , C08L23/04 , C08L23/06 , C08L23/08 , C08L23/16 , C09J123/08
Abstract: 1. UNA MEZCLA DE POLIMERO QUE COMPRENDE (A) DE 15 A 60 POR CIENTO EN PESO, BASADO EN UN PESO TOTAL DE LA MEZCLA, DE AL MENOS UN PRIMER PO- LIMERO DE ETILENO QUE ES UN POLIMERO DE ETILENO SUSTANCIALMENTE LINEAL QUE TIENE UNA DENSIDAD EN EL RANGO DE 0.850 A 9.920 g/cc EN DONDE EL POLIME- RO DE ETILENO SUSTANCIALMENTE LINEAL SE CARACTERI- ZA ADICIONALMENTE COMO TENIENDO (i) UNA PROPORCION DE FLUJO DE FUSION I[sub 10]/I2 MAYOR O IGUAL 5.63, (ii) UNA DISTRIBUCION DE PESO MOLECULAR, Mw/m[sub n], COMO SE DETERMINO POR LA CROMATOGRA- FIA DE PERMEANCIA DE GEL Y SE DEFINIO POR LA ECUACION: (iii) UNA REOLOGIA DE EXTRUSION DE GAS TAL QUE LA PROPORCION DE DESGARRAMIENTO CRITICO DE LUGAR DE FRACTURA DE FUSION SUPERFICIAL PARA EL POLIMERO DE ETILENO SUSTANCIALMENTE LINEAL ES AL MENOS 50 POR CIENTO MAYOR QUE LA PROPORCION DE DESGARRAMIENTO CRITICO EN LUGAR DE LA FRACTURA DE FUSION DE LA SUPERFICIE PARA UN POLIMERO DE ETILENO LINEAL, EN DONDE EL POLIMERO DE ETILENO SUSTANCIALMENTE LI- NEAL Y EL POLIMERO DE ETILENO LINEAL COMPRENDEN EL MISMO COMONOMERO O COMONOMEROS, EL POLIMERO DE ETILENO LINEAL TIENE UN I2, Mw/Mn Y DENSIDAD DEN- TRO DEL 10 POR CIENTO DEL POLIMERO DE ETILENO SUSTANCIALMENTE LINEAL Y EN DONDE LAS PROPIEDADES DE DESGARRAMIENTO CRITICAS RESPECTIVAS DEL POLIME- RO DE ETILENO SUSTANCIALMENTE LINEAL Y EL POLIMERO ETILENO LINEAL SE MIDEN A LA MISMA TEMPERATURA DE FUSION USANDO UN REOMETRO DE EXTRUSION POR GAS, Y iv. UNA CALORIMETRIA POR BARRIDO DIFERENCIAL, UNI- CA DSC, PICO DE FUSION ENTRE -30 GRADOS Y -150 GRADOS CENTIGRADOS, Y B) DE 40 A 85 POR CIENTO EN PESO, BASADO EN EL PE- SO TOTAL DE LA MEZCLA, DE AL MENOS UN SEGUNDO PO- LIMERO DE ETILENO QUE ES UN POLIMERO DE ETILENO DE ALTA DENSIDAD HOMOGENEAMENTE RAMIFICADO, HETEREO- GENEAMENTE RAMIFICADO LINEAL QUE TIENE UNA DENSI- DAD EN EL RANGO DE 0.890 A 0.965 g/cc; EN DONDE LA MEZCLA DEL POLIMERO SE CARACTERIZA PORQUE TIENE UNA DENSIDAD ENTRE 0.890 Y 0.930 g/cc, UNA DIFERENCIAL ENTRE LAS DENSIDADES DEL PRIMER POLIMERO DE ETILENO Y EL SEGUNDO POLIMERO DE ETILENO DE AL MENOS 0.015 g/cc, Y UN PORCENTAJE DE CRISTALINIDAD RESIDUAL PRC, SEGUN SE DEFINIO POR LA ECUACION: PCR MENOR O IGUAL 5.0195 x 10 [exp 4] (p) - 2/7062 x 10 [exp 4] (P)2 - 2.3246 x 10 [exp 4] EN DONDE p ES LA DENSIDAD DE LA MEZCLA DEL POLIME- RO EN gramos.cm. cubicos.
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34.发明专利
公开(公告)号：ZA958897B
公开(公告)日：1997-04-21
申请号：ZA958897
申请日：1995-10-20
Applicant: DOW CHEMICAL CO
Inventor： DEGROOT JACQUELYN A , HAZLIT LONNIE G , JAIN PRADEEP , KARANDE SEEMA V , MERGENHAGEN LAURA K , MOLDOVAN DAN G , STEWART KENNETH B , WHITEMAN NICOLE F
IPC: B29C47/00 , B29K23/00 , B65D81/34 , B29L9/00 , B32B27/32 , B65D1/00 , B65D65/40 , C08F110/02 , C08F210/08 , C08F210/16 , C08J5/18 , C08L23/04 , C08L23/06 , C08L23/08 , C08L23/16 , C09J123/08 , C08L , C08J
Abstract: The subject invention provides a polymer mixture having high heat resistivity, low hexane extractive and controllably lower or higher modulus. The mixture is comprised of at least one first substantially linear ethylene polymer, Component (A), and at least one second ethylene polymer which is a homogeneously branched polymer, heterogeneously branched linear polymer or a non-short chain branched linear polymer. When fabricated into film, the mixture is characterized by a heat seal initiation temperature which is substantially lower than its Vicat softening point as well as a high ultimate hot tack strength. When fabricated as a molded article, the mixture is characterized by high microwave warp distortion while maintaining a lower modulus. The polymer mixture is particularly well-suited for use in multilayer film structures as a sealant layer for such applications as cook-in packages, hot-fill packages, and barrier shrink films. In molding applications, the mixture is well-suited as freezer-to-microwave food storage containers and lids which maintain good flexibility at low temperature to allow easy openability of such containers.
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公开(公告)号：AU1400495A
公开(公告)日：1995-06-27
申请号：AU1400495
申请日：1994-12-07
Applicant: DOW CHEMICAL CO
Inventor： RAMSEY DAVID B , STEWART KENNETH B
Abstract: Multilayer thermoplastic stretch wrap film having substantial one-sided cling properties is made without the use of polymers with high levels of n-hexane extractables, dissimilar polymer chemistries, or low molecular weight tackifiers. The reverse or cling layer comprises at least one homogeneously branched ethylene polymer composition having a density of about 0.90 g/cc or less and the obverse or non-cling layer comprises an propylene or ethylene polymer composition having a density greater than 0.90 g/cc. The multilayer film is particularly useful for load palletization end-use applications.
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Patent Agency Ranking
公开(公告)号：CA2177377A1
公开(公告)日：1995-06-15
申请号：CA2177377
申请日：1994-12-07
Applicant: DOW CHEMICAL CO
Inventor： RAMSEY DAVID B , STEWART KENNETH B
Abstract: Multilayer thermoplastic stretch wrap film having substantial one-sided cling properties is made without the use of polymers with high levels of n-hexane extractables, dissimilar polymer chemistries, or low molecular weight tackifiers. The reverse or cling layer comprises at least one homogeneously branched ethylene polymer composition having a density of about 0.90 g/cc or less and the obverse or non-cling layer comprises a propylene or ethylene polymer composition having a density greater than 0.90 g/cc. The multilayer film is particularly useful for load palletization end-use applications.
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公开(公告)号：BR9916964A
公开(公告)日：2002-05-28
申请号：BR9916964
申请日：1999-12-08
Applicant: DOW CHEMICAL CO
Inventor： MAUGANS REXFORD A , KNICKERBOCKER EDWARD N , STEWART KENNETH B
Abstract: The subject invention is directed to fibers and polymer blend compositions having improved bonding performance. In particular, the subject invention pertains to a multiconstituent fiber comprising a blend of a polypropylene polymer and a high molecular weight (i.e. low melt index or melt flow) ethylene polymer. The subject invention further pertains to the use of the fiber and polymer blend composition which has improved bonding performance in various end-use applications, especially woven and nonwoven fabrics such as, for example, disposable incontinence garments and diapers. The fibers have good spinnability and provide fabrics having improved bond strength and elongation.
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公开(公告)号：AU8080001A
公开(公告)日：2002-02-13
申请号：AU8080001
申请日：2001-07-26
Applicant: DOW CHEMICAL CO
Inventor： KLIER JOHN , FISK THOMAS E , STEWART KENNETH B
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公开(公告)号：AU6690701A
公开(公告)日：2002-01-08
申请号：AU6690701
申请日：2001-06-14
Applicant: DOW CHEMICAL CO
Inventor： PYZIK ALEKSANDER J , STEWART KENNETH B , REDDY HARI P , YANG KWANHO , ALLEN SHARON M , MORGAN TED A
Abstract: A concrete article comprised of concrete having therein a reinforcing fiber, where at least about 50 percent of the reinforcing fibers are frayed only at an end or ends of the reinforcing fibers, may be made by mixing concrete, water and a reinforcing fiber for a sufficient time to fray the ends of at least 50 percent of the fibers and curing the mixture to form the concrete article. The fiber may be a reinforcing fiber comprised of at least two filaments bonded together and the filaments being comprised of a polymeric core and a polymeric sheath comprised of a fusing-fraying polymer, such that the reinforcing fiber, when mixed with inorganic particulates, frays predominately only at an end or ends of the fiber.
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公开(公告)号：NO20004500A
公开(公告)日：2000-10-31
申请号：NO20004500
申请日：2000-09-08
Applicant: DOW CHEMICAL CO
Inventor： TURLEY ROBERT R , STEWART KENNETH B
CPC classification number: D01F8/06 , D01F6/30 , D01F6/42 , D01F6/46 , D01F6/56 , Y10T428/2913 , Y10T428/2929 , Y10T442/3146 , Y10T442/637
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