Patents by Inventor Manisha Sarkar
Manisha Sarkar 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: 20130221654Abstract: A method for imaging laser printable media and media for use in such method.Type: ApplicationFiled: August 26, 2011Publication date: August 29, 2013Applicant: 3M INNOVATIVE PROPERITES COMPANYInventors: Jonathan P. Kitchin, Manisha Sarkar
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Publication number: 20090075070Abstract: An adhesive-backed photographic print is provided. The photographic print includes an adhesive composite sandwiched between a photographic print and a differential release liner. The liner has opposing first and second surfaces, the first surface having a higher release value compared to the second surface. The adhesive composite includes a repositionable adhesive, a support layer disposed on the repositionable adhesive, the support layer having a stiffness of less than about 50,000 Newton per meter in its cross-web direction, as measured according to ASTM 882-02, and a permanent pressure sensitive adhesive disposed on the support layer. The adhesive composite is disposed on the liner such that the repositionable adhesive is in contact with the first surface of the liner. The photograph print has opposing first and second surfaces, the first surface containing an image and the second surface disposed on the permanent adhesive.Type: ApplicationFiled: September 13, 2007Publication date: March 19, 2009Inventors: Jonathan P. Kitchin, Manisha Sarkar
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Publication number: 20090075007Abstract: An adhesive composite is provided. The adhesive composite includes a support layer sandwiched between a repositionable adhesive and a permanent adhesive. The support layer has a stiffness of less than about 50,000 Newton per meter in its cross-web direction, as measured according to ASTM 882-02. The repositionable adhesive has an adhesion to polyester greater than about 200 gram per inch.Type: ApplicationFiled: September 13, 2007Publication date: March 19, 2009Inventors: Jonathan P. Kitchin, Manisha Sarkar
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Publication number: 20080087376Abstract: A method for making a photographic print having an adhesive is provided. The method includes the steps of (a) providing a roll of dual coated adhesive tape, (b) providing a roll of photographic print having two substantially parallel edges and having opposing first and second surfaces, the first surface containing an image; and (c) laminating the tape and the photographic print. The dual adhesive coated tape includes a differential release liner having opposing first and second surfaces, the first surface having a higher release value than the second surface; a repositionable adhesive disposed on the first side of the liner; a support layer disposed on the repositionable adhesive, the support layer having a stiffness of less than about 50,000 Newton per meter in its cross-web direction, as measured according to ASTM 882-02; and a permanent pressure sensitive adhesive disposed on the support layer.Type: ApplicationFiled: September 13, 2007Publication date: April 17, 2008Inventors: Jonathan P. Kitchin, Manisha Sarkar
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Publication number: 20080087379Abstract: A method of making a repositionable adhesive backed photo media is provided. The method includes the steps of (a) providing an imageable substrate or providing a photograph; (b) providing an attachment mechanism having a carrier film with opposing first and second surfaces; a thermally activating adhesive disposed on the first surface; a repositionable adhesive disposed on the second surface; and a liner disposed on the repositionable adhesive; (c) stacking the imageable substrate or stacking the photograph with the attachment mechanism; and (4) exposing the stack to heat causing the thermally activating adhesive to bond to the imageable substrate or the photograph.Type: ApplicationFiled: September 13, 2007Publication date: April 17, 2008Inventors: Jonathan P. Kitchin, Manisha Sarkar, Timothy J. O'Leary
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Publication number: 20060188710Abstract: The inventive pad has a plurality of sheets stacked on top of one another. Each sheet having opposing, writeable first and second surfaces, opposing upper and lower edges, and opposing first and second side edges. A securing mechanism is disposed on the second surface and proximate to the upper edge of the sheet. The securing mechanism includes (a) first and second raised elements and (b) a pressure sensitive adhesive. Each element has an application surface and is aligned generally parallel to and spaced apart from one another. The adhesive has an exposed surface and is disposed between the first and second raised element. The height of the adhesive, as measured from its exposed surface to the second surface is shorter than the height of either raised element, as measure from its application surface to the second surface. The sheets are attached together forming the pad.Type: ApplicationFiled: February 17, 2006Publication date: August 24, 2006Inventors: David Windorski, Ashish Khandpur, Manisha Sarkar, Lori Bilski
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Publication number: 20060134363Abstract: The present invention relates to a composition composed of a crosslinkable resin containing lactam groups; a DMAPMA/HEMA copolymer copolymer; and a cellulose based water absorbent polymer. The invention also relates to a printable substrate composed of a substrate, optionally, a layer serving as a base layer; and at least one layer derived from a composition as defined in the present invention. Process for preparing such a printable substrate is also provided.Type: ApplicationFiled: November 15, 2005Publication date: June 22, 2006Inventors: Lawrence Nadeau, William Waddell, David Hood, Edward Johnson, Jonathan Kitchin, Manisha Sarkar, Dwight Evans, Richard Gratton
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Publication number: 20050276953Abstract: The disclosure is a gift wrap material affixable to a target surface. The gift wrap material comprises a linerless opaque first substrate. The first substrate has a first major surface and a second major surface. A selective adhesion mechanism is disposed on the first major surface. The selective adhesion mechanism includes a pressure sensitive adhesive and is configured so as to provide a first adhesion force to the target surface before activation of the mechanism and a second adhesion force to the substrate after activation of the mechanism. The first adhesion force is at a level so as to allow the sheet to be positionable on the target surface. The invention also is a method for wrapping a gift. A linerless opaque first substrate is provided. The substrate has a first major surface, a second major surface and a selective adhesion mechanism disposed on the first major surface. The first major surface is positioned against the gift with substantially no adhesion of the first substrate to the gift.Type: ApplicationFiled: June 14, 2004Publication date: December 15, 2005Inventors: Jonathan Kitchin, Manisha Sarkar
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Publication number: 20050276971Abstract: The disclosure is a gift wrap material affixable to a target surface. The gift wrap material comprises a linerless opaque first substrate. The first substrate has a first major surface and a second major surface. A selective adhesion mechanism is disposed on the first major surface. The selective adhesion mechanism includes a pressure sensitive adhesive and is configured so as to provide a first adhesion force to the target surface before activation of the mechanism and a second adhesion force to the substrate after activation of the mechanism. The first adhesion force is at a level so as to allow the sheet to be positionable on the target surface. The invention also is a method for wrapping a gift. A linerless opaque first substrate is provided. The substrate has a first major surface, a second major surface and a selective adhesion mechanism disposed on the first major surface. The first major surface is positioned against the gift with substantially no adhesion of the first substrate to the gift.Type: ApplicationFiled: June 14, 2004Publication date: December 15, 2005Inventors: Jonathan Kitchin, Manisha Sarkar
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Publication number: 20040059045Abstract: An inkjet printable article is provided. The article includes a substrate with an image receptor layer disposed thereon. The receptor layer comprises (a) a water-soluble alkyl cellulose polymer, (b) a water dispersible cationic urethane polymer, and (c) a material selected from the group consisting of alkoxysilanes and polydimethylaminoethyl methacrylate salts.Type: ApplicationFiled: September 25, 2002Publication date: March 25, 2004Applicant: 3M Innovative Properties CompanyInventors: Jonathan P. Kitchin, Manisha Sarkar, Shaohua Li
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Publication number: 20020150732Abstract: An image receiving layer comprising an ink receptive crosslinked polymer comprising the reaction product of a multifunctional aziridine crosslinking agent and a polymer containing protonated pyridine substituents. Image receiving layers may also contain at least one swellable polymer and additives such as particulates, mordants, fillers and the like.Type: ApplicationFiled: February 9, 2001Publication date: October 17, 2002Inventors: Manisha Sarkar, Mahfuza B. Ali, Alan G. Miller
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Patent number: 6465081Abstract: A liquid ink repellent coating adapted to prevent transfer of fluid image forming ink droplets between imaged sheets in a stack of multiple printed impressions. The repellent coating comprises a polymeric composition having a surface energy less than about 30 mJ/m2 and an insoluble particulate filler as a matting agent.Type: GrantFiled: April 16, 2001Date of Patent: October 15, 2002Assignee: 3M Innovative Properties CompanyInventors: Manisha Sarkar, James P. DiZio, David J. Kinning, John W. Vanderzanden
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Publication number: 20020022118Abstract: A liquid ink repellent coating adapted to prevent transfer of fluid image forming ink droplets between imaged sheets in a stack of multiple printed impressions. The repellent coating comprises a polymeric composition having a surface energy less than about 30 mJ/m2 and an insoluble particulate filler as a matting agent.Type: ApplicationFiled: April 16, 2001Publication date: February 21, 2002Applicant: 3M Innovative Properties CompanyInventors: Manisha Sarkar, James P. DiZio, David J. Kinning, John W. Vanderzanden
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Patent number: 5624747Abstract: A water-based toner-receptive composition suitable for electrophotographic or xerographic imaging, comprising:a) from about 65 to about 99 parts of a transparent film-forming core/shell latex polymer, wherein the ratio of core to shell of said core/shell latex polymer ranges from about 10/90 to about 90/10, with the core having a lower T.sub.g than the shell;b) from about 1 to about 15 parts polymeric particles; andc) from 0 to about 20 parts of an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents.Type: GrantFiled: October 10, 1995Date of Patent: April 29, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Manisha Sarkar, Ying-Yuh Lu
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Patent number: 5518809Abstract: An image recording sheet comprising a substrate having an imaging surface and an opposing surface, the opposing surface having coated thereon a feed facilitation layer comprising a copolymer formed from at least one monomer selected from the group consisting of bicyclic alkyl (meth) acrylates, aliphatic alkyl (meth)acrylates having from one to 12 carbon atoms, aromatic (meth)acrylates, and a polar monomer having the formula: ##STR1## wherein R is hydrogen or methyl, R.sub.1 and R.sub.2 may be hydrogen, identical or differing alkyl groups having up to 8 carbon atoms, preferably up to 2 carbon atoms, or the quaternary cationic salts thereof, at least one long chain polymeric particle having good antifriction characteristics and optionally, an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents.Type: GrantFiled: January 25, 1994Date of Patent: May 21, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert M. Henry, Dwight L. Evans, Manisha Sarkar
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Patent number: 5500457Abstract: A water-based toner-receptive composition suitable for electrophotographic or xerographic imaging, comprising:a) from about 65 to about 99 parts of a transparent film-forming core/shell latex polymer, wherein the ratio of core to shell of said core/shell latex polymer ranges from about 10/90 to about 90/10, with the core having a lower T.sub.g than the shell;b) from about 1 to about 15 parts polymeric particles; andc) from 0 to about 20 parts of an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents.Type: GrantFiled: November 18, 1994Date of Patent: March 19, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Manisha Sarkar, Ying-Yuh Lu
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Patent number: 5445866Abstract: A transparent recording sheet coated with a transparent water-based image-receptive coating composition of (1) from about 5 parts by weight to about 95 parts by weight of an oligomer incorporating at least one addition product having at least two reactants wherein one reactant is 3-glycidoxypropylalkoxysilane and the second reactant is at least one secondary amine; (2) from about 5 parts by weight to 95 parts by weight of a colloidal dispersion; (3) optionally, one or more anti-blocking agents; and (4) optionally, one or more surfactants.Type: GrantFiled: October 19, 1993Date of Patent: August 29, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert E. Martinson, John J. Stofko, Manisha Sarkar, Steven T. Hedrick, Wayne K. Larson
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Patent number: 5310591Abstract: A transparent image-recording sheet suitable for use in a plain paper copier, comprising a transparent backing having two major surfaces, said sheet having a machine direction, and a transverse direction, at least one of the major surfaces having coated thereon, a transparent water-based toner-receptive coating comprising:a) from about 65 to about 99.9 parts of an imageable polymer;b) from about 0.1 to about 15 parts of at least one polymeric particle having a mean particle size ranging from about 1 .mu.m to about 15 .mu.m, andc) from 0 to about 20 parts of an antistatic agent,the toner-receptive coating being coated onto the transparent backing at a time during manufacture of the backing selected from the group consisting ofa) before any orientation of said film, andb) after uniaxial orientation in the machine direction.Type: GrantFiled: March 12, 1993Date of Patent: May 10, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Bill H. Dodge, William H. Hughes, Steven J. McMan, Sharon L. Perry, Manisha Sarkar
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Patent number: 5310595Abstract: An image recording sheet and a transparent water-based toner receptive coating therefore comprising an imaging copolymer formed from at least one monomer selected from the group consisting of bicyclic alkyl (meth) acrylates, aliphatic alkyl (meth)acrylates having from about one to about 12 carbon atoms, aromatic (meth)acrylates, and a polar monomer having the formula: ##STR1## wherein R is hydrogen or methyl, R.sub.1 and R2 may be hydrogen, identical or differing alkyl groups having up to about 8 carbon atoms, preferably up to about 2 carbon atoms, or the quaternary cationic salts thereof, at least one novel long chain polymeric particle having good antifriction characteristics and optionally, an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents.Type: GrantFiled: September 18, 1992Date of Patent: May 10, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mahfuza B. Ali, Bill H. Dodge, William H. Hughes, Mohammed Iqbal, Ying-Yuh Lu, Steven J. McMan, Manisha Sarkar, Chi-Ming Tseng
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Patent number: 5286815Abstract: The present invention relates to a release coating composition comprising (a) about 1 to about 100 percent by weight of a particular polysiloxane polymer (I), (b) about 0 to about 99 percent by weight of a silane of a particular formula (II) or hydrolyzates thereof, and (c) about 1 to about 15 percent by weight of a component selected from the group consisting of acids, anhydrides of acids, ammonium and lower alkyl salts of acids and mixtures thereof wherein the acids each have pKas of less than about 3.Type: GrantFiled: February 7, 1992Date of Patent: February 15, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Charles M. Leir, Audrey A. Sherman, Manisha Sarkar