Abstract: A nanofiber is formed by combining one or more natural or synthetic polymeric materials and one or more than one cross-linking agents having at least two latent reactive activatable groups. The latent reactive activatable nanofiber may be used to modify the surface of a substrate by activating at least one of the latent reactive activatable groups to bond the nanofiber to the surface by the formation of a covalent bond between the surface of the substrate and the latent reactive activatable group. Some of the remaining latent reactive activatable group(s) are left accessible on the surface of the substrate, and may be used for further surface modification of the substrate. Biologically active materials may be immobilized on the nanofiber modified surface by reacting with the latent reactive groups that are accessible on the surface of the substrate.
Abstract: The invention provides compositions that include crosslinking agents having multiple photoactivatable groups, such as diaryl ketones, or a diaryl ketone, such as benzophenone, and at least one polymerizable monomer, such as a zwitterionic monomer. The compositions are useful as surface coating agents that provide brush type polymeric coatings. These polymeric coatings can be used on medical devices, such as artificial joints, to reduce wear and tear between the components of the joint and thus reduce or eliminate debris generated by friction between the joint components.
Type:
Grant
Filed:
March 1, 2010
Date of Patent:
April 8, 2014
Assignee:
Innovative Surface Technologies, Inc.
Inventors:
Jie Wen, Laurie R. Lawin, Patrick Guire
Abstract: The present invention is directed to compositions, baths, and methods for composite plating including polytetrafluoroethylene (PTFE), and more particularly, to compositions, baths, and methods of composite plating with PTFE in a metal or alloy matrix where the materials used in the process contain no or essentially no PFOS (perfluorooctane sulfonate) and/or no PFOA (perfluorooctanoic acid).
Type:
Grant
Filed:
February 22, 2011
Date of Patent:
December 3, 2013
Assignee:
Surface Technology, Inc.
Inventors:
Michael David Feldstein, Thomas S. Lancsek
Abstract: The invention describes novel compositions that include a cross linking compound, a polymer and a 1 nm to about a 25 micron sized particle optionally with an oxide layer. In particular, the particle is a silica and one which has been pretreated with a silane.
Type:
Grant
Filed:
June 23, 2011
Date of Patent:
July 30, 2013
Assignee:
Innovative Surface Technologies, Inc.
Inventors:
Patrick E. Guire, Kristin Taton, Jie Wen, Laurie R. Lawin
Abstract: This invention is directed to a process for electrolessly metallizing an article, as well as to a plating bath and the subsequent plated substrate. The process comprises contacting the surface of an article with an electroless metallizing bath which may be essentially free of toxic and/or heavy metals.
Type:
Grant
Filed:
December 7, 2010
Date of Patent:
April 3, 2012
Assignee:
Surface Technology, Inc.
Inventors:
Michael Feldstein, Thomas Stephen Lancsek, Jijeesh Jose Thottathil
Abstract: The invention describes compositions that include a polymer having a water contact angle of between about 120° and about 150° or greater adhered to a 1 nm to about a 25 micron diameter sized particle optionally with an oxide layer. In particular, the particle is a silica and one which has been pretreated with a silane.
Type:
Grant
Filed:
February 26, 2008
Date of Patent:
May 17, 2011
Assignee:
Innovative Surface Technology, Inc.
Inventors:
Laurie R. Lawin, Patrick Guire, Jie Wen, Kristin Taton
Abstract: A nanofiber is formed by combining one or more natural or synthetic polymeric materials and one or more than one cross-linking agents having at least two latent reactive activatable groups. The latent reactive activatable nanofiber may be used to modify the surface of a substrate by activating at least one of the latent reactive activatable groups to bond the nanofiber to the surface by the formation of a covalent bond between the surface of the substrate and the latent reactive activatable group. Some of the remaining latent reactive activatable group(s) are left accessible on the surface of the substrate, and may be used for further surface modification of the substrate. Biologically active materials may be immobilized on the nanofiber modified surface by reacting with the latent reactive groups that are accessible on the surface of the substrate.
Abstract: The invention describes novel crosslinking compounds that include photoactivatable moieties. Several families of compounds are disclosed that can include one or more hydrophilic moieties that help to solubilize the compounds in aqueous environments.
Abstract: A stimuli responsive nanofiber that includes a stimuli responsive polymer, such as a thermally responsive polymer, and a cross-linking agent having at least two latent reactive activatable groups. The nanofiber may also include a biologically active material or a functional polymer. The stimuli responsive nanofiber can be used to modify the surface of a substrate. When the nanofiber includes a thermally responsive polymer, the physical properties of the surface can be controlled by controlling the temperature of the system, thus controlling the ability of the surface to bind to a biologically active material of interest.
Abstract: The invention describes novel crosslinking compounds that include photoactivatable moieties. Several families of compounds are disclosed that can include one or more hydrophilic moieties that help to solubilize the compounds in aqueous environments.
Abstract: This invention is directed to a process for electrolessly metallizing an article, as well as to a plating bath and the subsequent plated substrate. The process comprises contacting the surface of an article with an electroless metallizing bath which may be essentially free of toxic and/or heavy metals.
Type:
Grant
Filed:
September 23, 2008
Date of Patent:
June 29, 2010
Assignee:
Surface Technology, Inc.
Inventors:
Thomas Steven Lancsek, Michael David Feldstein
Abstract: A micropattern grip surface for use on a grip, and particularly a grip for a golf club, wherein the pattern includes alternating upstanding ridges and grooves between the ridges. In a preferred embodiment, the ridges extend with a generally longitudinal direction of extension component on the grip with a generally circumferential direction of extension component and also may be parallel. The ridges in an embodiment zigzag along the longitudinal direction. In an embodiment, at intersections or bends between the zig and the zag line elements, additional free end barbs extend from the intersections. The density, width and height of the line elements of the ridges are selected to provide drag on the hand or object gripping the grip, preferably in both the longitudinal and circumferential directions, and to give the grip a velvety feel. Alternatively, each of the ridges is comprised of some line elements.
Abstract: Disclosed is a method for the coating of textile machinery parts with a composite coating bearing finely divided particles dispersed within a metallic matrix.
Abstract: The present invention relates to composite electroless coatings with varying densities of codeposited particles in the plated layer along the surface of the substrate where said variation of densities is directed by the angle of rotation of the substrate during the coating process.
Type:
Grant
Filed:
August 5, 1999
Date of Patent:
January 14, 2003
Assignee:
Surface Technology, Inc.
Inventors:
Michael David Feldstein, Thomas Stephen Lancsek
Abstract: Textured surfaces comprised of peaks which have been electrochemically deposited on a substrate are prepared using a pulsed direct current process. Typical substrates are machine components such as a machine roll. Improved textured surfaces are made according to the invention by controlling the density, uniformity and size of the peaks using a pulsed direct current process. Accordingly, the peak characteristics are predetermined by selecting a pulse wave form having specific current density and pulse interval parameters as well as a total deposition time which will deposit peaks having desired characteristics on the substrate.