American Dye Source, Inc.

Mylan Group

Kodak Polychrome Graphics, Gmbh

Ipagsa Industrial, S.l.

My T Nguyen

Marc-Andre Locas

S Peter Pappas

Robert W Hallman

Ajay Shah

Celin M Savariar-Hauck

Hans-Joachim Timpe

Shashikant Saraiya

Ken-ichi Shimazu

Steven Xiao

Loc Vinh Bui

Omkar J Natu

Philippe Gaudreault

Marc-André Locas

Gerhard Hauck

Jayanti Patel

Frederic E Mikell

Nishith Merchant

Jerome Philip Kesselman

Ken-Ichi Shimazu

Vadym Nazarov

Francois Raymond

Viet-Thu Nguyen-Truong

Chuanyong Ji

Jean-François Fortin

Pierre Louis Brunner

Duc-Huy Giang

Brian D Nguyen

Marc Andre Locas

Peter Jonathan Bentley

Quoc Khoi Nguyen

A Kha Phan

Jean-Philippe Tremblay-Morin

Jean-Philipe Tremblay-Morin

Akha Phan

Marc André Locas

There is provided a copolymer having the general structure below, wherein a, b, and d are molar ratios varying between about 0.01 and about 0.90 and c is a molar ratio varying between about 0.01 and about 0.90; A1 represents monomer units comprising a cyano-containing pendant group in which the cyano is not directly attached to the backbone of the copolymer; A2 represents monomer units comprising two or more hydrogen bonding sites; A3 represents monomer units that increase solubility in organic solvents; and A4 represents monomer units that increase solubility in aqueous alkaline solutions. There is also provided a near-infrared radiation-sensitive coating composition comprising this copolymer as well as a positive-working thermal lithographic printing plate comprising a near-infrared radiation-sensitive coating comprising this copolymer, a method of producing such a printing plate, and finally a method of printing using such a printing plate. Formula (I).

Copolymers for near-infrared radiation-sensitive coating compositions for positive-working thermal lithographic printing plates

There is provided a copolymer and polymeric particle comprising the copolymer, a method of producing a polymeric particle, a copolymeric binder, a method of producing a copolymeric binder, a near infrared radiation-sensitive coating composition, a negative working lithographic offset printing plate, a method of producing a negative working lithographic offset printing plate and methods of imaging the plate and printing with the imaged plate.

Copolymers, polymeric particles comprising said copolymers and copolymeric binders for radiation-sensitive coating compositions for negative-working radiation-sensitive lithographic printing plates

A dry adhesive comprising a micro-featured and nano-featured surface, and a compliant surface having a hardness of about 60 Shore A or less, the micro-featured and nano-featured surface and the compliant surface being capable of forming upon contact a dry adhesive bond with each other.

Dry adhesives

There are provided compounds comprising optionally substituted (FORMULA I) fused with one or two optionally substituted (FORMULA II), wherein A and E each independently represent &#x2014;CH&#x2014;, &#x2014;NH&#x2014;, -0-, &#x2014;S&#x2014;, or &#x2014;C(&#x2550;O)&#x2014; and B represents a bond, &#x2014;CH&#x2014;, &#x2014;NH&#x2014;, -0-, &#x2014;S&#x2014;, or &#x2014;C(&#x2550;O)&#x2014;, said compound having directly or indirectly attached thereto at least one acyl and/or oxime ester group. Such compounds are useful inter alias as photoinitiators.

Compounds with oxime ester and/or acyl groups

There is provided a lithographic printing plate substrate comprising (a) a base layer, (b) a layer of a first adhesive covering one side of the base layer except for at least two opposite edges thereof, and (c) an aluminum layer laminated onto the layer of first adhesive and said opposite edges of the base layer, the aluminum layer thereby being sealed with the base layer at said opposite edges of the base layer. There is also provided a method of manufacture thereof as well as a method of processing in view of recycling. Finally, there is provided a lithographic printing plate comprising the above substrate.

Substrate for lithographic printing plate

A dry adhesive comprising a microporous and nanoporous surface, and a compliant surface having a hardness of about 60 Shore A or less, the microporous and nanoporous surface and the compliant surface being capable of forming upon contact a dry adhesive bond with each other, wherein the microporous and nanoporous surface has Rbetween about 0.2-3.0 &#x3bc;m and Rbetween about 20-2,000 nm.

Dry adhesives comprised of micropores and nanopores

There are provided compounds comprising optionally substituted (FORMULA I) fused with one or two optionally substituted (FORMULA II), wherein A and E each independently represent &#x2014;CH&#x2014;, &#x2014;NH&#x2014;, &#x2014;O&#x2014;, &#x2014;S&#x2014;, or &#x2014;C(&#x2550;O)&#x2014; and B represents a bond, &#x2014;CH&#x2014;, &#x2014;NH&#x2014;, &#x2014;O&#x2014;, &#x2014;S&#x2014;, or &#x2014;C(&#x2550;O)&#x2014;, said compound having directly or indirectly attached thereto at least one acyl and/or oxime ester group. Such compounds are useful inter alias as photoinitiators. 

There is provided a gallotannic compound, a method of producing a gallotannic compound, a lithographic printing plate coating composition, a lithographic printing plate, a method of producing a lithographic printing plate and a method of printing.

Gallotannic compounds for lithographic printing plate coating compositions

The invention provides a near infrared absorption polymer comprising at least two different pendent infra-red chromophoric moieties covalently bonded to the backbone of an alkali-soluble resin, at least one of which is an indole cyanine dye and the other of which is a benz[e]-indole cyanine dye. When used in the coating of a heat sensitive positive working lithographic printing plate precursor the stabilization time needed after manufacture is significantly reduced, avoiding further conditioning processes before use. The precursors are preferably imagewise exposed with a near-infrared laser emitting at between 780 nm and 850 nm.

Thermally reactive infrared absorption polymers and their use in a heat sensitive lithographic printing plate

A thermal lithographic printing plate overcoat composition comprising (a) a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm; and (b) micro-particles or nano-particles is provided. A negative-working thermal lithographic printing plate comprising (a) a hydrophilic substrate; (b) a near infrared imaging layer disposed on the hydrophilic substrate; and (c) an overcoat layer disposed on the imaging layer, said overcoat layer comprising a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm; and micro-particles or nano-particles is also provided. Finally, a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm is provided.

Polymeric dyes, overcoat compositions and thermal lithographic printing plates

This invention relates to iodonium salts, acetal copolymers and polymer binders comprising functional groups capable of undergoing cationic or radical polymerization, their method of preparation and their use in the preparation of coating solutions and coatings. This invention also relates to coatings containing the iodonium salts, acetal copolymers and/or polymer binders and to negative working lithographic printing plates comprising these coatings.

Materials for lithographic plates coatings, lithographic plates and coatings containing same, methods of preparation and use

There is provided polymeric particles having a particle size between about 60 nm and about 1000 nm and comprising a polymer, the polymer comprising a hydrophobic backbone, a near infrared absorbing segment having attached thereto a near infrared absorbing chromophore having an absorption peak between about 700 nm and about 1100 nm; and a near infrared transparent segment. Method of manufacture these particles are also provided. A coating composition comprising the above-polymeric particles and a reactive iodonium oligomer is also provided. Finally, a negative-working lithographic offset printing plate comprising a substrate; a hydrophilic under layer; and a laser imageable upper layer, wherein the laser imageable upper layer comprises the above polymeric particle is also provided.

Reactive near infrared absorbing polymeric particles, methods of preparation and uses thereof

Described herein are novel thermally reactive near-infrared absorbing acetal copolymers that undergo chemical and physical changes upon exposure to near-infrared radiation. Also described are the methods of preparation of the novel acetal copolymers starting either with vinyl-alcohol polymers or with acetal copolymers. Also described are the methods of use of the new near-infrared absorbing acetal copolymers in coatings used in lithographic offset printing plates that can be directly imaged with near-infrared laser imaging devices in computer-to-plate and digital offset printing technologies. The novel acetal copolymers are also useful in photoresist applications, rapid prototyping of printed circuit boards and chemical sensor development.

Thermally reactive near-infrared absorbing acetal copolymers, methods of preparation and methods of use

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Kirkland, Canada

My T Nguyen