E.i. Dupont De Nemours and Company

Manfred A Sondergeld

Mario Grossa

Richard Douglas Bauer

Ursula Annerose Kraska

Ronald John Convers

Udo Dietrich Bode

Karl-Heinz Wiedenmann

Ashok Kamalaksha Kudva

Steven Max Kalo

Dietmar Dudek

Volker Struewe

Jonathan W Goodin

Klaus Hossner

An ink receptor sheet for ink jet printing, an ink jet printing system including an ink receptor sheet and a transfer element, a process for preparing an image on permanent support by ink jet printing, and an imaged article made by such process. By incorporation of a photopolymerizable layer into an ink receptor sheet, the handling latitude during lamination and peeling steps of ink jet printing processes was enhanced and durable and resistant images made by such ink jet printing processes were provided.

Ink receptor sheet and it's process of use

A tonable, photosensitive composition, the adhesion properties of which are controlled by a polycaprolactone having an average molecular weight of at least 50,000 and a process for preparing polychromatic images by means of such a composition are described.

Tonable, photosensitive composition and process for making polychromatic images

This invention makes available a photopolymerizable material containing at least one polymeric binder, photopolymerizable monomer and, at least one photoinitiator, and having a special shear modulus and a specific thickness. These photopolymerizable materials are used in processes for preparing images, especially multiple color proofs. Temporary supports and pigmented transfer materials specifically designed for the preparation of multiple color proofs are described. A pigmented element having a pigmented transfer layer with a polymeric component of polycaprolactone, polytetrahydrofuran and mixtures thereof is disclosed.

Multiple color proof temporary supports, photopolymerizable materials and pigmented transfer materials

Photopolymerizable mixtures containing a polymeric binder mixture with salt-forming groups, a photopolymerizable monomer, a photoinitiator and at least 10% by weight of a vinyl acetate homopolymer or a vinyl acetate copolymer, and photopolymerizable recording materials made of such mixtures. They exhibit less oxygen sensitivity during the production of color proofs.

Photopolymerizable mixture exhibiting low oxygen sensitivity for the

This invention makes available processes for preparing images, especially color proofs. A layer with imagewise tacky and nontacky areas is toned. Toner adhering to the tacky areas is transferred first onto a temporary support and from there onto an image receptor.

Process for preparing multiple color proofs

The process of the invention produces tapes for automatic mounting of electronic components. These mounting tapes have metallic conductive tabs with metallic bumps on at least one of their ends. The metallic bumps can be thermally welded or soldered, have well-defined areas and heights, and adhere well to the conductive tabs.

Process for preparing mounting tapes for automatic mounting of

Photopolymerizable compositions for image recording, containing, among other components, addition-polymerizable, ethylenically unsaturated compounds and polymeric binders, wherein at least one of these binders is a copolymer of the formula (I) containing 5 to 50 percent by weight of one or more different structural units C1, C2, or combinations thereof containing carboxyl groups. ##STR1##

Photopolymerizable compositions with binders containing carboxyl groups

A positively working, tonable, photohardenable mixture, as well as image-forming material prepared therefrom are described, which as essential components, contains a binder or mixture of binders, a photohardenable compound, a photoinitiator or an initiator system and a multivalent metal compound to improve the toning properties of the material.

Process of forming imaged photohardened material

Positive working tonable film having a photohardenable layer

Process for lowering the viscosity of coating solutions containing a thixotropy-causing filler for the production of light-sensitive reproduction materials by adding at least one compound corresponding to one of the following formulas: ##STR1## wherein R is a linear saturated or unsaturated hydrocarbon chain having 2 to 12 carbon atoms, optionally substituted in which one or more carbon atoms can be replaced by N(R.sub.5), O, S, and/or an aromatic radial, or a 5 to 8 membered aliphatic ring.

Process to lower the viscosity of coating solutions for the production

A photopolymerizable mixture is described which contains the following: a binding agent which is soluble or at least capable of swelling in aqueous-alkaline solutions, a photoinitiator or a photoinitiator system and at least one ethylenically unsaturated monomer, whereby at least one monomer contains an aromatic hydroxyl-, mercapto-, sulfonamide- or a mono-N-substituted sulfonamide group, or combinations thereof.

Photopolymerizable mixture and recording material produced from it

Etching solution for dot etching photopolymerized materials which comprises an organic polymeric binder having alkali soluble groups, monomer and photoinitiator, the material having an optical density in the actinic region of at least 1.0, wherein a water-soluble salt of a water-insoluble polymeric polycarboxylic acid whose acid strength is the same or less than that of the binder is present as the etching agent.

Growing community of inventors

Mulheim/Main, Germany

Manfred A Sondergeld