E.i. Dupont De Nemours and Company

Sterling Diagnostic Imaging, Inc.

Other

Sterling Diagnsotic Imaging, Inc.

Rolf Thomas Weberg

Ludovic Fodor

Timothy D Weatherill

Lawrence J Simmons

Richard Roy Jones

Shitong Zhu

Richard Reid Gleason

Carl P Beitelshees

Elizabeth R Walter

Timothy J Sanford

William P Paplham

Marie Neiss

Marc Koester

Allan R Overholt

Reinhold R Uger

Ludovic U Fodor

Timothy James Sanford

A decorative surface appearance in an acrylic material is obtained by applying a flowable crosslinkable acrylic material containing anisotropic particles having an aspect ratio of 3 to a shrinkable support followed by crosslinking to form a solid article.

Process for preparing decorative surface appearance in acrylic material employing anisotropic particles

A protective surface modification system employs two separate formulations to enhance visual appearance and in many instances provide abrasion resistance on a surface such as a countertop.

Protective surface modification system and application to substrates

A series of three-dimensional burls are formed in a filled-acrylic solid surface material by curing partially mixed steams of acrylic resin casting compositions with defined parameters of viscosity, density and surface tension.

Continuous method for formation of three dimensional burls in a solid surface material

A molding composition including reactive high-volatility monomeric groups, such as acrylics, at least one primary thermal initiator and at least one secondary thermal initiator is described. Molding process using molding compositions including reactive high-volatility monomeric groups are also described.

Thermoset volatile monomer molding compositions and method for molding

Decorative surface material having a decorative pattern in which a combination of domains of varying sizes and colors are defined by shading variations at the interfaces of adjoining domains, the decorative pattern being provided by a process in which a flowable thermosettable molding formulation having orientable particles mixed therein is divided into fragments which are mixed together, the mixture is fed into a hot mold and pressure is applied to form the solid surface material.

Process for preparing decorative surface materials having a decorative pattern

A series of three-dimensional burls are formed in a filled acrylic solid surface material by curing two partially mixed casting compositions with defined parameters of viscosity, density and surface tension.

Formation of three dimensional burls in a filled acrylic solid surface material

A molding composition including reactive high-volatility monomeric groups, such as acrylics, at least one primary thermal initiator and at least one secondary thermal initiator is described. Molding processs using molding compositions including reactive high-volatility monomeric groups are also described.

Thermoset volatile monomer molding compositions

An improved method for increaseing the hardening in a photographic element is described. The hardener is an imidazolium compound of formula: ##STR1## and the imidazolium is used in conjunction with a hardening accelerator defined by: ##STR2## the substituents are listed in the specification.

Hardening of hydrophilic colloids

An improved method of hardening a hydrophilic colloid is detailed. The hardening results in a stronger matrix and less water pickup. These and other advantages are obtained by hardening with a combination of at least one hardener chosen from Formula I either alone or in combination with at least one hardener chosen from Formula II: ##STR1## The substituents are defined.

Hardening of hydrophilic colloids with imidazolium and triazine

This invention is related to improved hardeners for proteinaceous materials. More specifically this invention is related to improved imidazolium hardeners for crosslinking a proteinaceous material for use in a photographic film. The improved hardeners are defined by the formula: ##STR1##

Imidazolium hardeners for hydrophilic colloids

An improved hardener and a photographic element comprising same defined by ##STR1## wherein: the substituent groups are as defined in the specification.

Imidazolium hardeners

Hardeners for hydrophilic colloid defined by the formula: ##STR1## The hardeners are for crosslinking proteinaceous materials for use in photographic films.

Imidazolium hardeners for hydrophilic colloid

An improved imidazolium hardener is described. These novel hardners are specifically advantageous for hardening, or crosslinking, a hydrophilic colloid in a photographic element. The advance in the art is realized in A hardening agent chosen from the set consisting of: ##STR1## wherein: Y.sup.1 represents an alkyl of 6-24 carbons, aryl of 6-24 carbons, aralkyl of 7 to 25 carbons, the atoms chosen from C, N, O, and S necessary to form a 5- or 6-membered ring, or --L.sup.1 CR.sup.13 CH.sub.2 ;

Photographic element hardened with imidazolium hardeners

An improved imidazolium hardener is described. These novel hardeners are specifically advantageous for hardening, or crosslinking, a hydrophilic colloid in a photographic element. The advance in the art is realized in A hardening agent chosen from the set consisting of: ##STR1##

Growing community of inventors

East Aurora, NY, United States of America

Rolf Thomas Weberg