Patents by Inventor Seema Karande

Seema Karande 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).

  • Patent number: 8475933
    Abstract: The present invention relates to compositions and processes of making and using interpolymers having a controlled molecular weight distribution. Multilayer films and film layers derived from novel ethylene/?-olefin interpolymers are also disclosed.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: July 2, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Rajen M. Patel, David W. Fuchs, Pradeep Jain, Seema Karande, Mehmet Demirors, Mark Grant Spencer, Kim L. Walton, Angela N. Taha, Phillip D. Hustad, Roger L. Kuhlman, Anthony J. Castelluccio
  • Publication number: 20120231287
    Abstract: The present invention relates to compositions and processes of making and using interpolymers having a controlled molecular weight distribution. Multilayer films and film layers derived from novel ethylene/?-olefin interpolymers are also disclosed.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 13, 2012
    Inventors: Rajen M. Patel, David W. Fuchs, Pradeep Jain, Seema Karande, Mehmet Demirors, Mark Grant Spencer, Kim L. Walton, Angela N. Taha, Phillip D. Hustad, Roger L. Kuhlman, Anthony J. Castelluccio
  • Patent number: 8153243
    Abstract: The present invention relates to compositions and processes of making and using interpolymers having a controlled molecular weight distribution. Multilayer films and film layers derived from novel ethylene/?-olefin interpolymers are also disclosed.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: April 10, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Rajen M. Patel, David W. Fuchs, Pradeep Jain, Seema Karande, Mehmet Demirors, Mark Grant Spencer, Kim L. Walton, Angela N. Taha, Phillip D. Hustad, Roger L. Kuhlman, Anthony J. Castelluccio
  • Publication number: 20070275219
    Abstract: The present invention relates to compositions and processes of making and using interpolymers having a controlled molecular weight distribution. Multilayer films and film layers derived from novel ethylene/?-olefin interpolymers are also disclosed.
    Type: Application
    Filed: June 13, 2007
    Publication date: November 29, 2007
    Applicant: Dow Global Technologies Inc.
    Inventors: Rajen Patel, David Fuchs, Pradeep Jain, Seema Karande, Mehmet Demirors, Mark Spencer, Kim Walton, Angela Taha, Phillip Hustad, Roger Kuhlman, Anthony Castelluccio
  • Publication number: 20070092704
    Abstract: The invention is an article comprising at least two layers, a low crystallinity layer and a high crystallinity layer. One or both layers is capable of being elongated so that a pre-stretched article is capable of being formed.
    Type: Application
    Filed: October 25, 2006
    Publication date: April 26, 2007
    Applicant: Dow Global Technologies Inc.
    Inventors: Rajen Patel, Andy Chang, Hong Peng, Seema Karande, Benjamin Poon, Yunwa Cheung
  • Patent number: 7041765
    Abstract: Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising: (A) at least 50 weight percent (wt%) propylene; and (B) at least 5 wt % ethylene and/or one or more unsaturated comonomers. Representative of component (B) unsatuarated comonomers are the C4-20 ?-olefins, C4-20 dienes, styrenic compounds, and the like. Preferably, the film has at least one of a (i) haze value of less than about 10, (ii) 45 degree gloss of greater than about 65, and (iii) dart value of greater than about 100 g/mil. In one preferred embodiment, the layer comprises a compolymer characterized as having at least one of the following properties: (i) 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity, (ii) a B-value greater than about 1.4 when the comonomer content, i.e.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: May 9, 2006
    Assignee: Dow Global Technologies Inc.
    Inventors: Li-Min Tau, Pak-Wing S. Chum, Seema Karande, Clive Bosnyak
  • Publication number: 20060004167
    Abstract: Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising: (A) at least 50 weight percent (wt %) propylene; and (B) at least 5 wt % ethylene and/or one or more unsaturated comonomers. Representative of component (B) unsatuarated comonomers are the C4-20 ?-olefins, C4-20 dienes, styrenic compounds, and the like. Preferably, the film has at least one of a (i) haze value of less than about 10, (ii) 45 degree gloss of greater than about 65, and (iii) dart value of greater than about 100 g/mil. In one preferred embodiment, the layer comprises a compolymer characterized as having at least one of the following properties: (i) 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity, (ii) a B-value greater than about 1.4 when the comonomer content, i.e.
    Type: Application
    Filed: August 31, 2005
    Publication date: January 5, 2006
    Inventors: Li-Min Tau, Pak-Wing Chum, Seema Karande, Clive Bosnyak
  • Patent number: 6946535
    Abstract: Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising: (A) at least 50 weight percent (wt %) propylene; and (B) at least 5 wt % ethylene and/or one or more unsaturated comonomers. Representative of component (B) unsatuarated comonomers are the C4-20 ?-olefins, C4-20 dienes, styrenic compounds, and the like. Preferably, the film has at least one of a (i) haze value of less than about 10, (ii) 45 degree gloss of greater than about 65, and (iii) dart value of greater than about 100 g/mil. In one preferred embodiment, the layer comprises a compolymer characterized as having at least one of the following properties: (i) 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity, (ii) a B-value greater than about 1.4 when the comonomer content, i.e.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: September 20, 2005
    Assignee: Dow Global Technologies Inc.
    Inventors: Li-Min Tau, Pak-Wing S. Chum, Seema Karande, Clive Bosnyak
  • Patent number: 6919407
    Abstract: Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising: (A) at least 50 weight percent (wt %) propylene; and (B) at least 5 wt % ethylene and/or one or more unsaturated comonomers. Representative of component (B) unsatuarated comonomers are the C4-20 ?-olefins, C4-20 dienes, styrenic compounds, and the like. Preferably, the film has at least one of a (i) haze value of less than about 10, (ii) 45 degree gloss of greater than about 65, and (iii) dart value of greater than about 100 g/mil. In one preferred embodiment, the layer comprises a compolymer characterized as having at least one of the following properties: (i) 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity, (ii) a B-value greater than about 1.4 when the comonomer content, i.e.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: July 19, 2005
    Assignee: Dow Global Technologies Inc.
    Inventors: Li-Min Tau, Pak-Wing S. Chum, Seema Karande, Clive Bosnyak
  • Publication number: 20050054800
    Abstract: Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising: (A) at least 50 weight percent (wt %) propylene; and (B) at least 5 wt % ethylene and/or one or more unsaturated comonomers. Representative of component (B) unsatuarated comonomers are the C4-20 ? -olefins, C4-20 dienes, styrenic compounds, and the like. Preferably, the film has at least one of a (i) haze value of less than about 10, (ii) 45 degree gloss of greater than about 65, and (iii) dart value of greater than about 100 g/mil. In one preferred embodiment, the layer comprises a compolymer characterized as having at least one of the following properties: (i) 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity, (ii) a B-value greater than about 1.4 when the comonomer content, i.e.
    Type: Application
    Filed: October 18, 2004
    Publication date: March 10, 2005
    Inventors: Li-Min Tau, Pak-Wing Chum, Seema Karande, Clive Bosnyak
  • Publication number: 20040082750
    Abstract: Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising:
    Type: Application
    Filed: August 15, 2003
    Publication date: April 29, 2004
    Inventors: Li-Min Tau, Pak-Wing S. Chum, Seema Karande, Clive Bosnyak
  • Publication number: 20030194575
    Abstract: Films with excellent machine direction (MD) tear properties comprise at least one layer made from a polymer comprising:
    Type: Application
    Filed: November 5, 2002
    Publication date: October 16, 2003
    Inventors: Li-Min Tau, Pak-Wing S. Chum, Seema Karande, Clive Bosnyak
  • Publication number: 20010002075
    Abstract: The invention includes a process comprising (a) forming a polymeric admixture including at least one polyolefin which has been prepared using a single site catalyst and at least a crosslinking amount of at least one poly(sulfonyl azide) crosslinking agent; (b) shaping the resulting admixture; and (c) heating the resulting shaped admixture to a temperature at least the decomposition temperature of the crosslinking agent. The steps take place in any sequence and optionally include substeps. The single site catalyst is preferably a constrained geometry or metallocene catalyst, but optionally another transition metal catalyst which is not a traditional Ziegler Natta Ti/MgCl2 catalyst such as a vanadium catalyst.
    Type: Application
    Filed: August 26, 1998
    Publication date: May 31, 2001
    Inventors: BHARAT CHAUDHARY, THOI H. HO, SEEMA KARANDE, CHE-I KAO, ROBERT H. TERBRUEGGEN, DAVID A. BABB, CLARK H. CUMMINS, MICHAEL J. MULLINS, H. CRAIG SILVIS