Robert R Desjarlais, Age 62100 Parkway Rd UNIT 6C, Bronxville, NY 10708

4775594, Oct 4, 1988

Jun 20, 1986

6/876682

Robert C. Desjarlais - Hadley MA

James River Graphics, Inc. - South Hadley MA

B32B 2708
B32B 2736

428421

An ink jet transparency is provided which exhibits improved wetting properties, thereby resulting in an even surface distribution of ink on the transparency. The ink jet transparency comprises a substantially transparent resinous support, e. g. , a polyester film, and a substantially clear coating thereon which includes a non-volatile organic acid. Glycolic acid, citric acid, malonic acid, tartaric acid, maleic acid, fumaric acid, malic acid and succinic acid are among the preferred non-volatile organic acids employable in the present invention. The presence of the organic acid results in greatly improved wetting of ink jet ink in solid block areas, preventing the ink from coalescing onto itself. Undesired voids and pin holes in those areas where the ink has been applied are therefore avoided.

4642383, Feb 10, 1987

Sep 30, 1982

6/428457

Robert C. Desjarlais - South Hadley MA

James River Graphics, Inc. - South Hadley MA

C07C14800

568 48

Substituted 2,2'-dihydroxydiphenyl sulfide, sulfoxide, and sulfone compounds, and their use as azo coupling components in light-sensitive diazo compositions. The novel compounds couple with rapidly developing diazonium compounds to provide lemon-yellow dyes, and can be used in combination with blue and violet couplers to provide a green-black diazo image in higher density areas with a neutral black in lower density areas.

3976491, Aug 24, 1976

Nov 26, 1974

5/527409

Robert C. Desjarlais - South Hadley MA

Scott Paper Company - Philadelphia PA

G03C 158

96 91R

Light-sensitive diazo compositions which comprise a resorcinol substituted in the 2-position with an alkyl group and in the 4-position with an aralkyl group as the yellow azo coupling component, and diazotype materials prepared therefrom.

4307170, Dec 22, 1981

Jun 18, 1980

6/160649

Robert C. Desjarlais - South Hadley MA

James River Graphics, Inc. - South Hadley MA

G03C 152

430147

Negative-working diazography formulation is comprised of (i) at least one hexafluorophosphate diazonium salt adapted to photolytically cleave into an acid catalyst, (ii) at least one acid labile enolic, preferably arylenolic blocked-coupler adapted to be converted in the presence of acid to an active azo-coupling component, and (iii) an effective amount of an additive, such as p-toluenesulfonyl benzamide, capable of controlling the pH of films prepared from said formulation when subjected to a clearing step as defined herein.

4732786, Mar 22, 1988

Dec 17, 1985

6/809870

Robert Patterson - Neenah WI
David H. Hollenberg - Neenah WI
Robert C. Desjarlais - South Hadley MA
George E. Alderfer - Neenah WI

James River Corporation - Richmond VA

B41M 500

427261

A coated ink jet printing substrate where said coating utilizes an insolubilized hydrophilic polymer.

4590263, May 20, 1986

Sep 30, 1982

6/428455

Robert C. Desjarlais - South Hadley MA
Everett W. Bennett - Longmeadow MA

James River Graphics, Inc. - South Hadley MA

C07C11300
C07C11304
G03C 152
G03C 518

534558

Novel diazonium salts which possess excellent photo speed, good thermal stability, exceptional resistance to discoloration in the D. sub. min areas, rapid development, and allow a wide range of azo dye colors are provided. The diazonium salts are of the following formula: ##STR1## wherein R. sub. 1 is tertiary butyl or tertiary amyl; Y is hydrogen, alkyl, hydroxyalkyl, cyanoalkyl, cycloalkyl, aralkyl, alkoxy, aryloxy, aralkoxy, aralkylthio, arylthio, alkylthio, halogen, allyl, allyloxy, allylthio, cyanoalkoxy, hydroxyalkoxy, methoxyalkoxy, trifluoroalkyl, alkylacetylamino, morpholino, or dialkyl carbonamido; R. sub. 2 and R. sub. 3 are the same or different, and are alkyl, aralkyl, allyl, cyanoalkyl, hydroxyalkyl, hydrogen, acyl, cycloalkyl, beta-chloroalkyl, branched alkyl, or a structure wherein R. sub. 2 and R. sub. 3 may be linked together to form a heterocyclic structure; and X is an anion. The desirable properties are provided at least in part by utilizing a tertiary butyl or tertiary amyl substituted phenoxy group metal to the diazonium group.

4307171, Dec 22, 1981

Jun 18, 1980

6/160650

Robert C. Desjarlais - South Hadley MA

James River Graphics, Inc. - South Hadley MA

G03C 158
G03C 160
G03C 518

430147

Negative-working diazography material is comprised of (i) at least one hexafluorophosphate diazonium salt adapted to photolytically cleave into an acid catalyst, (ii) at least one acid labile enolic, preferably arylenolic blocked-coupler adapted to be converted in the presence of acid to an active azo-coupling component, and (iii) an effective amount of at least one additive such as benzotriazole, urea, thiourea and derivatives thereof. The additives are believed to react with the acid released during imaging to the extent that migration thereof into the areas which have not been exposed to light is reduced or eliminated. The reduction in the migration of the liberated acid improves the D-min and line acuity of the image obtained from the formulation and the presence of the additive provides a means for decreasing the photo speed of the formulation.