E.i. Dupont De Nemours and Company

Bruce M Monroe

William K Smothers

Dominic M Chan

Gregory A Bodager

Gregory Charles Weed

Torence J Trout

Thomas Eugene Dueber

Willaim K Smothers

A tonable, aqueous-processable, photosensitive element and process for forming a colored image from said element is described. The element comprises a support and a tonable, aqueous-processable photosensitive layer, said photosensitive layer consisting essentially of (a) an aqueous-processable, photoinsolubilizable photosensitive composition comprising a photosensitive material, and (b) a water-soluble plasticizer, wherein said photosensitive material is present in sufficient amount to insolubilize said photosensitive layer on exposure to actinic radiation, said photosensitive composition is present in sufficient amount to form a layer when said photosensitive layer is coated, and said plasticizer is present in sufficient amount to make said photosensitive layer.

Process of forming a colored image utilizing aqueous-processable imaging

Aqueous-processable imaging element tonable at room temperature before

Solid photopolymerizable compositions and photosensitive elements are provided that are useful in preparing optical elements, and especially holograms. The composition contains a polymeric binder, a liquid ethylenically unsaturated monomer, and a photoinitiator system. Typical compositions have a refractive index modulation of at least 0.005 when measured per the specified test.

Photopolymerizable compositions in elements for hologram imaging

This invention relates to initiator systems for photopolymerizable compositions. More particularly, this invention pertains to photopolymerizable compositions in which the initiator system comprises an anionic dye in combination with a borate anion coinitiator.

Borate coinitiators for photopolymerizable compositions

Solid photopolymerizable compositions and photosensitive elements are provided that are useful in preparing optical elements, and especially holograms. The compositions contains a polymeric binder, a liquid ethylenically unsaturated monomer, and a photoinitiator system. Typical compositions have a refractive index modulation of at least 0.005 when measured per the specified test.

Photopolymerizable compositions and elements for refractive index imaging

A new class of sensitizers for photopolymerizable compositions is disclosed derived from cyclic ketones and tricyclic aminoaldehydes. A preferred compound is cyclopentanone, 2.5-bis[(2,3,6,7-tetrahydro-1H, 5H-benzo [i,j]quinolizin-9-yl)methylene]- ##STR1##

Process of forming hologram and polymeric holographic recording medium

Presence of a ring opening monomer polymerizable by free radical sigma-bond cleavage in a photopolymerizable composition improves volume reflection holograms prepared from the composition.

Holographic photopolymer compositions and elements containing a

A new class of sensitizers for photopolymerizable compositions is disclosed derived from cyclic ketones and tricyclic aminoaldehydes. A preferred compound is cyclopentanone, 2,5-bis[2,3,6,7-tetrahydro-1H,5H-benzo[i,j]quinolizin-9-methylene] ##STR1##

Photopolymerization sensitizers active at longer wavelengths

Holographic photopolymer compositions having fluorinated binders are provided that produce excellent reflection holograms when holographically imaged.

Holographic photopolymer compositions and elements for refractive index

Presence of a ring opening monomer in a photopolymerizable composition improves reflection holograms prepared from the composition.

Photopolymerizable composition consisting essentially of (A) at least one ethylenically unsaturated monomeric compound, (B) at least one 2,4,5-triarylimidazolyl dimer, (C) sensitizing amount of at least one polymeric sensitizer, weight average molecular weight 10,000 to 300,000, which is the reaction product of (1) a reactive photosensitizer and (2) a reactive polymer as defined herein, and (D) optionally an organic polymeric binder. The compositions are useful in photoresists, chemical milling, toning films and printing plates.

Growing community of inventors

Wilmington, DE, United States of America

Bruce M Monroe