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Inventor:
Vanderhoff; John W.
Address:
Bethlehem, PA
No. of patents:
11
Patents:












Patent Number Title Of Patent Date Issued
6544503 Process for the preparation of aqueous dispersions of particles of water-soluble polymers and th April 8, 2003
The invention is a process for the preparation of crosslinked water-swellable polymer particles. First, an aqueous polymer solution containing a water-soluble polymer having at least one functional group or charge, is combined with aqueous medium. The aqueous polymer solution is then
6214331 Process for the preparation of aqueous dispersions of particles of water-soluble polymers and th April 10, 2001
The invention is a process for the preparation of crosslinked water-swellable polymer particles. First, an aqueous polymer solution containing a water-soluble polymer having at least one functional group or charge, is combined with aqueous medium. The aqueous polymer solution is then
6140386 Aqueous coating compositions, methods for making same and uses thereof October 31, 2000
An aqueous unpigmented coating and printing composition useful for gravure and flexographic printing on plastic and metal substrates is provided by preparing an aqueous emulsion of a hydrophobic UV curable oligomer and a photoinitiator and adding about 1 to 10% by weight of the compositi
5830927 Printing ink compositions, methods for making same and uses thereof November 3, 1998
Aqueous based printing ink compositions adapted for use in gravure and flexographic printing on hydrophobic substrates are prepared by combining a low-viscosity resin emulsion having an average particle diameter of less than about 0.5 microns and comprised of hydrophobic, moisture resist
5106903 Preparation of large particle size monodisperse latexes April 21, 1992
Monodisperse latexes of at least 2-30 microns particle size are prepared from an emulsion recipe comprising a monodisperse seed latex polymer on the order of 2 microns or less particle size, a polymerizable monomer, an initiator, at least one inhibitor, and a water-soluble polymeric
4935456 Process for preparing microencapsulated particles and the resultant products and uses thereof June 19, 1990
A method comprising forming a water-in-oil emulsion of an aqueous phase comprising discrete water-insoluble particles an an aqueous solution of a water-soluble polymerizable monomer, polymerizing said monomer, phase-inverting the water-in-oil emulsion to an oil-in-water emulsion, rem
4791162 Preparation of large particle size monodisperse latexes December 13, 1988
Monodisperse latexes of at least 2-30 microns particle size are prepared from an emulsion recipe comprising a monodisperse seed latex polymer on the order of 2 microns or less particle size, a polymerizable monomer, an initiator, at least one inhibitor, and a water-soluble polymeric emul
4487855 Colored latexes; methods for making same and colored finely divided products December 11, 1984
The present invention relates to colored latex products, and especially to colored synthetic polymer emulsions, the finely divided colored polymers obtainable therefrom, and methods for making the colored polymer emulsions as well as the polymers as colored, finely divided solids.
4247434 Process for preparation of large-particle-size monodisperse January 27, 1981
Monodisperse latexes having a particle size in the range of 2 to 40 microns are prepared by seeded emulsion polymerization in microgravity. A reaction mixture containing smaller monodisperse latex seed particles, predetermined amounts of monomer, emulsifier, initiator, inhibitor and
4177177 Polymer emulsification process December 4, 1979
A polymer emulsification process comprising intimately dispersing a liquified water insoluble polymer phase in an aqueous liquid medium phase containing at least one nonionic, anionic or cationic oil-in-water functioning emulsifying agent, in the presence of a compound selected from
4070323 Aqueous polyurethane emulsions January 24, 1978
A method comprisingI. reacting isocyanate groups in an organic polyisocyanate by anhydrous reaction with a chemically equivalent amount of primary hydroxyl-containing material, at least about 50 mole % of which material is one or a mixture ofA. allyl alcohol, orB. at least one C.sub.2-4










 
 
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