Fuji Photo Film Company, Limited

Syunichi Kondo

Hideo Sato

Akira Umehara

Kenji Sano

Seiji Horie

Yasuo Okamoto

Akihiro Matsufuji

Tsuguo Yamaoka

Syu Watarai

Hirotsugu Nomaguchi

Hiroaki Yokoya

Toshinao Ukai

Hiromichi Tachikawa

Yoshimasa Aotani

Akira Sato

Kazuto Kunita

Yasumasa Kawabe

Tsumoru Hirano

Tadahiro Sorori

Satoru Honjo

Tatsuji Higashi

Akira Nagashima

Yasuhiro Noguchi

Masataka Murata

Hiroyuki Nagase

Hisatake Ono

Toshio Uchida

Kazuo Fujita

Yukio Abe

Hiromichi Kurita

Yasuaki Yuyama

A positive-working light-sensitive composition comprising (a) a compound having at least two enol ether groups, represented by the following general formula (I); (b) a linear polymer having acidic groups; and (c) a compound capable of generating an acid through irradiation with actinic light rays or radiant rays, the component (a) and the component (b) being thermally crosslinked:

Positive-working light-sensitive composition

A photopolymerizable composition comprising an addition-polymerizable compound having at least one ethylenic unsaturated double bond, at least one specific sensitizing dye such as the following formula (I), and a titanocene compound: ##STR1## The substituents in formula (I) are defined in the specification.

Photopolymerizable composition containing sensitizing dye and titanocene

Disclosed are a novel photosensitive composition which can form a sharp negative image, a photosensitive composition recordable independently of the emission wavelength of an exposure light source, and particularly, a photosensitive composition recordable in a region from near infrared to infrared (heat rays), a method for producing a novel image recording material which can form a sharp negative image, and a heat mode write type lithographic printing plate for direct plate-making which can directly record digital data of a computer, etc. by use of a solid state laser and a semiconductor laser (heat mode) having an emission region from near infrared to infrared, utilizing a conventional processing device or printing device as it is. The photosensitive composition comprises an acid precursor, a specified hydroxyimide compound, and a hydroxyl group-containing linear polymer.

Negative type photosensitive compositions comprising a hydroxyimide

A photopolymerizable composition is disclosed, comprising at least (i) a compound having an addition-polymerizable ethylenically unsaturated bond, and (ii) an oxime ether compound. The photopolymerizable composition of the present invention shows high sensitivity to active light rays over a wide range of from ultraviolet ray to visible light and at the same time, the photosensitive material using the photopolymerizable composition of the present invention is improved in the storage stability. Further, the development precipitate generated from the developer waste after development of the photosensitive material is restrained.

Photopolymerizable composition

A photopolymerizable composition is disclosed, which comprises an addition-polymerizable compound having at least one ethylenically unsaturated double bond, a sensitizing dye represented by the following formula (I): ##STR1## wherein the all symbols are defined in the disclosure, and a titanocene compound.

Photopolymerizable composition containing a sensitizing dye and a

A photosensitive lithographic printing plate is described, which comprises a photopolymerizable composition containing at least the following components (i) to (iii): (i) a polymerizable compound having an addition-polymerizable unsaturated bond, (ii) a photopolymerization initiator, and (iii) a pigment dispersion, wherein the pigment dispersion is dispersed in the presence of a polymer having an aliphatic double bond in a main chain or a side chain thereof.

Photosensitive lithographic printing plate

A photopolymerizable composition is disclosed, comprising an addition polymerizable compound having at least one ethylenically unsaturated double bond, a sensitizing dye represented by formula (I) and a titanocene compound. The photopolymerizable composition exhibits high sensitivity to active light rays over a wide region of from ultraviolet light to visible light.

An image recording material is disclosed, comprising a radiant ray-absorbing material, a compound having at least two enol ether groups represented by formula (I) and an alkali-soluble resin: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 maybe the same or different, each represents a hydrogen atom, an alkyl group or an aryl group, or any two of them may form a saturated or unsaturated olefinic ring by combining with each other; and a method for preparing the above image recording material is disclosed.

Image recording material

A lithographic printing plate formed by charging a printing original plate which comprises an electroconductive support and provided thereon at least one photosensitive layer containing a photoconductive compound and a positive working photosensitive composition, imagewise exposing the printing original plate to form a latent image, forming a toner image with a liquid developer, exposing the whole surface of the positive working photosensitive composition with an active light, and removing the photosensitive layer in a non-image area other than the toner image area with an eluting solution comprising an alkaline solvent is disclosed. The positive working photosensitive composition contains (a) a compound having at least two enol ether groups represented by formula (I):

Lithographic printing plate

A photopolymerizable composition is disclosed, comprising (i) a compound having at least one addition-polymerizable, ethylenically unsaturated bond; (ii) a compound represented by formula (IA) or (IB): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.9, R.sup.10, R.sup.11 and R.sup.12 each independently represents a hydrogen atom, a halogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a hydroxyl group, a substituted oxy group, a mercapto group, a substituted thio group, an amino group, a substituted amino group, a substituted carbonyl group, a sulfo group, a sulfonato group, a substituted sulfinyl group, a substituted sulfonyl group, a phosphono group, a substituted phosphono group, a phosphonato group, a substituted phosphonato group, a cyano group or a nitro group or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4, R.sup.9 and R.sup.10, R.sup.10 and R.sup.11 or R.sup.11 and R.sup.12 may be combined with each other to form an aliphatic or aromatic ring; R.sup.5 represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group; R.sup.6 represents a substituted or unsubstituted alkenylalkyl group, a substituted or unsubstituted alkynylalkyl group, a substituted or unsubstituted alkenyl group or a substituted or unsubstituted alkynyl group; and R.sup.7 and R.sup.8 each independently represents a hydrogen atom, a halogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group or a substituted carbonyl group, ##STR2## wherein A.dbd. represents a substituted or unsubstituted 2(1H)-pyridylidene group or a substituted or unsubstituted 4(1H)-pyridylidene group; --X-- represents --O--, --S--, --NR.sup.2' -- or --CONR.sup.3' --; R.sup.1', R.sup.2' and R.sup.3' each independently represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, an alkenyl group, a substituted alkenyl group, an alkynyl group or a substituted alkynyl group; and .dbd.E represents a substituted or unsubstituted 1,3-dihydro-1-oxo-2H-indene-2-ylidene; and (iii) a compound which generates an active radical upon light irradiation when in the presence of component (ii).

A photopolymerizable composition comprises: (i) a polymerizable compound carrying an addition-polymerizable unsaturated bond; (ii) a methine compound; (iii) at least one compound selected from the group consisting of: (a) compounds having carbon-halogen bonds, (b) aromatic onium salts, (c) organic peroxides, (d) thio compounds, (e) hexaaryl-biimidazoles, (f) ketooxime esters, and (g) compounds represented by the following general formula (III): ##STR1## wherein R.sup.6, R.sup.7, R.sup.8 and R.sup.9 may be the same or different and each represents a substituted or unsubstituted alkyl, aryl, alkenyl, alkynyl or heterocyclic group, provided that at least two of R.sup.6, R.sup.7, R.sup.8 and R.sup.9 may be bonded together to form a ring structure and that at least one of them represents an alkyl group; and Z.sup.+ represents an alkali metal cation or a quaternary ammonium cation. The composition has a high sensitivity to a wide range of actinic light rays extending from ultraviolet to visible light.

A photopolymerizable composition comprises a polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator, wherein the photopolymerization initiator comprises an onium compound and an acridine derivative represented by the following general formula (I): ##STR1## wherein R.sup.1 represents an unsubstituted or substituted phenyl, alkyl or alkoxy group. The composition has high sensitivity to actinic rays over a wide range of wavelength extending from ultraviolet to visible region and thus can be used for preparing a lithographic printing plate, a resin-letterpress plate, a resist or photomask for making a printed board, a monochromatic and colored sheet for transfer or color-development and a color-developing sheet.

A PS plate comprises a surface-grained and anodized aluminum plate provided thereon with a light-sensitive layer of a composition comprising a light-sensitive substance and an alkali-soluble resin wherein the light-sensitive substance is a 1,2-naphthoquinonediazide-5- (or -4-) sulfonic acid ester of a polyhydroxy compound of formula (I): ##STR1## wherein substituents R.sub.1 to R.sub.4 may be same or different and each represents a hydrogen atom, a hydroxyl group, a halogen atom, an alkyl group, an alkoxy group or an alkenyl group; R.sub.5 and R.sub.6 each represents a hydrogen atom, an alkyl group or a group: ##STR2## a and c each represents 0-1 and b represents 0-4. The PS plate permits the complete removal of any pasting mark and has a high development latitude.

Presensitized plate having surface-grained and anodized aluminum

A photopolymerizable composition comprising: (a) a compound obtained by reacting one mole of a polyamine represented by the following general formula (I) with at least 2 moles of a compound having a group capable of reacting with the polyamine and a polymerizable ethylenically unsaturated group: ##STR1## wherein n is an integer of not less than 1 and (b) a photopolymerization initiator. A dry PS plate comprises a substrate provided thereon with, in order, a light-sensitive resin layer and a silicone rubber layer wherein the light-sensitive resin layer comprises the photopolymerizable composition and a polymeric compound having film-forming ability. The photopolymerizable composition and the dry PS plate have very high sensitivity.

Photopolymerizable composition and dry PS plate

A positive working light-sensitive composition comprising (a) a compound capable of generating acids through irradiation of actinic rays or radiant rays, (b) an organic base and (c) an alkali-soluble polymer. The composition is highly sensitive to light in wider wavelength region and highly resistant to aging. It can easily be produced and can hence be easily available.

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Shizuoka, Japan

Syunichi Kondo