Screen printing methods, processes, apparatuses, and techniques using nanoporous polymeric membranes, and electrical components, such as traces, transistors, circuits, assemblies, and the like additively printed utilizing nanoporous membranes. In one embodiment, the invention includes creating a nanoporous membrane through a chemical process. The membrane is patterned and pores are etched according to a desired pattern. The membrane may then be used to pattern conductive traces on a substrate according to a screen printing or other suitable printing technique.
Compositions Comprising Polyether-Urethane-Urea Additives For Block Resistance And Open Time
- Collegeville PA, US - Midland MI, US Jonathan DeRocher - Coopersburg PA, US John J. Rabasco - Allentown PA, US Antony K. Van Dyk - Blue Bell PA, US Kimy Yeung - Phoenixville PA, US
Assignee:
Rohm and Haas Company - Collegeville PA Dow Global Technologies LLC - Midland MI
A composition comprising: (a) a hydrophilic polyurethane comprising polymerized units of: (i) a water-soluble polyol having hydroxyl functionality from two to four and a weight-average molecular weight from 800 to 16,000; and (ii) an aliphatic polyisocyanate having isocyanate functionality from two to six; wherein polymerized ethylene oxide units comprise at least 85 wt % of said hydrophilic polyurethane; and at least one of: (b) a saccharide having at least 5 hydroxyl groups and Mfrom 300 to 4,000; (c) a dispersant polymer having Mfrom 700 to 50,000 and from 10 to 55 wt % polymerized residues of C-Ccarboxylic acid monomer and (d) a surfactant having HLB>11 and 12 to 100 polymerized units of ethylene oxide.
- Midland MI, US - Collegeville PA, US Jonathan DeRocher - Coopersburg PA, US Antony K. Van Dyk - Blue Bell PA, US Kimy Yeung - Phoenixville PA, US
International Classification:
C09D 121/02 C09D 7/65
Abstract:
The present invention relates to a coating composition which is a stable aqueous dispersion of polymer particles and a phenyl glycidyl ether adduct of maltodextrin. The composition of the present invention is useful for improving open time in coatings formulations.
Polyether-Urethane-Urea Additives For Block Resistance And Open Time
- Midland MI, US - Philadelphia PA, US Jonathan DeRocher - Coopersburg PA, US Steven Arturo - Wyncote PA, US John J. Rabasco - Allentown PA, US
International Classification:
C09D 175/08 C08G 18/48 C08G 18/22 C08G 18/79
Abstract:
A hydrophilic polyurethane comprising polymerized units of: (a) a water-soluble polyol having hydroxyl functionality from two to four and a weight-average molecular weight from 800 to 16,000; and (b) an aliphatic polyisocyanate having isocyanate functionality from two to six; wherein polymerized ethylene oxide units comprise at least 85 wt % of said hydrophilic polyurethane; and wherein a product of weight fraction of polymerized ethylene oxide units and polyethylene oxide mean molecular weight is from 4,200 to 16,000.
Di- Or Tristyrylphenol Monogycidyl Ether Adduct Of Maltodextrin
- Midland MI, US - Philadelphia PA, US Jonathan DeRocher - Coopersburg PA, US Antony K. Van Dyk - Blue Bell PA, US Tianlan Zhang - Garnet Valley PA, US
International Classification:
C08B 31/14 C09D 7/12
Abstract:
The present invention relates to a compound which is a di- and/or a tristyrylphenol monoglycidyl ether adduct of the compound of Formula I:where m is from 1 to 60. The compound of the present invention is useful as an open time additive in coatings formulations.
- Philadelphia PA, US Jonathan DeRocher - Coopersburg PA, US Antony K. Van Dyk - Blue Bell PA, US Tianlan Zhang - Garnet Valley PA, US
International Classification:
C08B 31/14 C09D 7/12
Abstract:
The present invention relates to a compound which is a phenyl glycidyl ether adduct of maltodextrin and its method of preparation. The compound of the present invention is useful as an open time additive in paint formulations.
Pigmented Coating Composition With A Phosphorus Acid Functionalized Binder
- Philadelphia PA, US Jonathan DeRocher - Coopersburg PA, US Kevin J. Henderson - Phoenixville PA, US Antony K. Van Dyk - Blue Bell PA, US
International Classification:
C09D 133/08 C08J 3/20
Abstract:
The present invention is a composition comprising a) a stable aqueous dispersion of polymer particles functionalized with structural units of a phosphorus acid monomer or a salt thereof and; b) a water-soluble polymer functionalized with structural units of a sulfonic acid monomer or a salt thereof as well as a method comprising mixing the stable aqueous dispersion of the phosphorus acid functionalized polymer particles with the sulfonic acid functionalized polymer, and TiO. The composition of the present invention is useful as a coatings formulation that provides improved hiding over phosphorus acid functionalized binders that do not include the water-soluble polymer. Alternatively, the same hiding benefit is seen at lower phosphorus acid concentration when the sulfonic acid functionalized polymer is present.
The Dow Chemical Company
Associate Research Scientist
Massachusetts Institute of Technology (Mit)
Graduate Student
Education:
Massachusetts Institute of Technology 2006 - 2011
Doctorates, Doctor of Philosophy, Chemical Engineering
University of Minnesota 2001 - 2005
Bachelors, Bachelor of Science, Chemical Engineering