1
David A Ley, Laura J Hiscock, Michael T Cooke: Process for the preparation of porous polymer beads. American Cyanamid, Steven Flynn, July 10, 1990: US04940734 (65 worldwide citation)

Isotropic porous polymer beads having controllable surface porosity and large pore diameters from about 0.002 to about 5 microns are produced from solutions of an acrylonitrile polymer or a copolymer by a thermally-induced phase separation process including intensively shearing the polymer solution ...


2
David A Ley, Herbert Burkhard: Low temperature crosslinkable emulsion. American Cyanamid Company, Steven J Hultquist, June 11, 1985: US04522973 (18 worldwide citation)

A low temperature crosslinkable emulsion is provided that includes an emulsified, crosslinkable polymer containing repeating units derived from a certain activated ester-containing vinyl monomer, and further includes a crosslinking agent having a plurality of functional groups each capable at low te ...


3
Lawrence A Flood, Ram B Gupta, Revathi Iyengar, David A Ley, Vankatarao K Pai: Carbamate functional 1,3,5-triazines. Cytec Technology, Pennie & Edmonds, May 16, 2000: US06063922 (6 worldwide citation)

Provided is a novel carbamate functional 1,3,5-triazine of the general formula ##STR1## wherein Z' is selected from the group consisting of hydrogen, hydrocarbyl, and a group represented by the formula NHQ',


4
David A Ley, Susan M Cady: Low temperature, moisture cure coating composition. American Cyanamid Co, Steven Hultquist, Henry C Jeanette, July 9, 1985: US04528320 (6 worldwide citation)

A low temperature, moisture cure coating composition is provided. The coating composition, which is shelf stable, includes a crosslinkable, solvent borne, solution polymer containing certain activated ester groups, and a ketimine. Also provided is a crosslinked coating obtained by curing the composi ...


5
David A Ley, Susan M Cady: Low temperature cure, activated ester coating composition with improved pot life. American Cyanamid Co, Steven Hultquist, Henry C Jeanette, July 23, 1985: US04530960 (6 worldwide citation)

A low temperature cure, two component coating composition having an improved balance between pot life and speed of cure is provided. The coating composition includes a crosslinkable, solvent borne, solution polymer containing certain activated ester groups, and a hemiaminal. Also provided is a cross ...


6
Laurence W Chang, Larry S Anderson, David A Ley: Surface-modified polyacrylonitrile beads. Cytec Technology, F M Van Riet, May 23, 1995: US05418284 (3 worldwide citation)

A bead composition is disclosed herein which comprises a core of a polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.


7
Lawrence A Flood, Ram B Gupta, Revathi Iyengar, David A Ley, Vankatarao K Pai: Process for the preparation of 1,3,5-triazine carbamates from amino-1,3,5-triazines and organic carbonates. Cytec Technology, Bart E Lerman, Claire M Schultz, Michael J Kelly, January 6, 1998: US05705641 (3 worldwide citation)

Provided is a process for preparing an at least bis-carbamate functional 1,3,5-triazine by contacting an at least diamino-1,3,5-triazine, an acyclic organic carbonate and a base, as well as certain novel compositions producible thereby. Also provided are substantially halogen contamination free cros ...


8
Laurence W Chang, Larry S Anderson, David A Ley: Surface-modified polyacrylonitrile fibrous substrates. American Cyanamid Company, Frank M Van Riet, April 26, 1994: US05306782 (3 worldwide citation)

A surface-modified fibrillated fiber composition is disclosed herein which comprises polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.


9
Lawrence A Flood, Ram B Gupta, Revathi Iyengar, David A Ley, Vankatarao K Pai: Process for the preparation of 1,3,5-triazine carbamates from amino 1,3,5-triazines and organic carbonates. Cytec Technology Corporation, Pennie & Edmonds, August 11, 1998: US05792866 (2 worldwide citation)

Provided is a process for preparing an at least bis-carbamate functional 1,3,5-triazine by contacting an at least diamino-1,3,5-triazine, an acyclic organic carbonate and a base, as well as certain novel compositions producible thereby. Also provided are substantially halogen contamination free cros ...


10
Larry S Anderson, Michael T Cooke, David A Ley: Porous acrylonitrile polymer substrate for bonding ligands and separating biologically active substances. Cytec Technology, Frank M Van Riet, April 26, 1994: US05306632 (2 worldwide citation)

A porous shaped substrate such as a porous bead is formed from polyacrylonitrile or a copolymer thereof containing nitrile groups. The substrate has a hydrophilic surface containing amide groups constituting about 1.8 mole percent to less than about 15 mole percent of the total nitrile groups, and c ...