1
Smadar Cohen, Carmen Bano, Karyn B Visscher, Marie Chow, Harry R Allcock, Robert S Langer: Ionically cross-linked polymeric microcapsules. Massachusetts Institute of Technology, Pennsylvania Research Corporation, Kilpatrick & Cody, September 22, 1992: US05149543 (172 worldwide citation)

A method for encapsulating biologically-labile materials such as proteins, liposomes, bacteria and eucaryotic cells within a synthetic polymeric capsule, and the product thereof, are disclosed. The method is based on the use of a water-soluble polymer with charged side chains that are crosslinked wi ...


2
Michael Fryd, Karyn B Visscher: Particles dispersed w/polymer dispersant having liquid soluble and cross-linkable insoluble segments. E I du Pont de Nemours and Company, Joseph A Tessari, July 17, 2001: US06262152 (54 worldwide citation)

Dispersions containing a liquid vehicle (which can be aqueous, semi-aqueous or non-aqueous), organic or inorganic particles (or mixtures) that are insoluble in the liquid vehicle and a polymeric dispersant, preferably a structured polymeric dispersant, having one or more segments soluble in the liqu ...


3
Smadar Cohen, Carmen Bano, Karyn B Visscher, Marie Chow, Harry R Allcock, Robert S Langer: Ionically cross-linked polymeric microcapsules. Massachusetts Institute of Technology, The Penn State Research Foundation, Arnall Golden & Gregory, February 27, 1996: US05494682 (54 worldwide citation)

A method for encapsulating biologically-labile materials such as proteins, liposomes, bacteria and eucaryotic cells within a synthetic polymeric capsule, and the product thereof, are disclosed. The method is based on the use of a water-soluble polymer with charged side chains that are crosslinked wi ...


4
Harry R Allcock, Alexander K Andrianov, Robert S Langer, Karyn B Visscher: Phosphazene polyelectrolytes as immunoadjuvants. Massachusetts Institute of Technology, Virus Research Institute, The Penn State Research Foundation, Arnall Golden & Gregory, October 8, 1996: US05562909 (50 worldwide citation)

A immunoadjuvant soluble phosphazene polyelectrolyte is disclosed. In one embodiment, the polymeric adjuvant is an poly(organophosphazene) with (i) ionized or ionizable pendant groups that contain, for example, carboxylic acid, sulfonic acid, or hydroxyl moieties, and (ii) pendant groups that are su ...


5
Smadar Cohen, Carmen Bano, Karyn B Visscher, Marie B Chow, Harry R Allcock, Robert S Langer: Ionically cross-linked polymeric microcapsules. May 3, 1994: US05308701 (46 worldwide citation)

A method for encapsulating biologically-labile materials such as proteins, liposomes, bacteria and eucaryotic cells within a synthetic polymeric capsule, and the product thereof, are disclosed. The method is based on the use of a water-soluble polymer with charged side chains that are crosslinked wi ...


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Patrick F McIntyre, Karyn B Visscher, Kenneth S Kirshenbaum: Aqueous coating compositions having improved transparency. E I du Pont de Nemours and Company, Steven C Benjamin, December 9, 2003: US06660793 (10 worldwide citation)

Transparent iron oxide pigment dispersions which produce waterborne coating compositions having excellent transparency and reduced haze are provided. The dispersions contain dispersed pigment, an aqueous carrier, and a mixture of water-dispersible acrylic copolymer dispersants, the mixture containin ...


8
Karyn B Visscher, Patrick F Mc Intyre: Aqueous graft copolymer pigment dispersants. E I du Pont de Nemours and Company, Steven C Benjamin, July 29, 2003: US06599973 (10 worldwide citation)

A polymeric dispersant for pigments based on an acrylic graft copolymer wherein the graft copolymer has a weight average molecular weight of about 5,000-100,000 and comprises a hydrophobic polymeric backbone and discrete anionic and nonionic hydrophilic side chains attached to the backbone. These gr ...


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Graciela Beatriz Blanchet Fincher, Karyn B Visscher: Methods for forming patterns on a filled dielectric material on substrates. E I du Pont de Nemours and Company, August 21, 2007: US07259443 (4 worldwide citation)

Methods of forming a pattern of filled dielectric material on a substrate by thermal transfer processes are disclosed comprising exposing to heat a thermally imageable donor element comprising a substrate and a transfer layer of dielectric material. The exposure pattern is the image of the desired p ...