Abstract: A radiation-curable mixture is disclosed which contains a compound which forms an acid under the action of high-energy radiation, and contains an acid-curable compound, wherein the compound which forms an acid contains aliphatically bound halogen (chlorine or bromine) and has a pK.sub.a value of less than about 12. A radiation-curable recording material and a process for recording high-energy radiation using the material are also disclosed. The mixture, and in particular the recording material produced therefrom, has relatively high sensitivity and improved resolution and, in addition, does not exhibit image fogging after development.

Abstract: The invention relates to N,N-disubstituted sulfonamides of the formulae R.sup.1 [--N(CO--OR.sup.2)--SO.sub.2 --R.sup.3 ].sub.n (I) and R.sup.1 [--SO.sub.2 --N(CO--OR.sup.2)--R.sup.3 ].sub.n (II), in which R.sup.1 --for n=1--is a (C.sub.1 -C.sub.20)alkyl, (C.sub.3 -C.sub.10)cycloalkyl, (C.sub.6 -C.sub.14) aryl or (C.sub.7 -C.sub.20)aralkyl radial, for n>1--the 2-, 3- or 4-valent radical of a (C.sub.1 -C.sub.20)alkane or (C.sub.6 -C.sub.7)cycloalkane, a non-condensed or condensed mono- or polynuclear (C.sub.6 -C.sub.18)aromatic compound, R.sup.2 is a (C.sub.3 -C.sub.11)alkyl, (C.sub.3 -C.sub.11)alkenyl or (C.sub.7 -C.sub.11)aralkyl radical, R.sup.3 is an unsubstituted or substituted (C.sub.1 -C.sub.6)alkyl, (C.sub.3 -C.sub.6)cycloalkyl, (C.sub.6 -C.sub.14)aryl or (C.sub.7 -C.sub.20)aralkyl radical.

Abstract: An electrophotographic photosensitive element for use in offset printing masters comprises an electrically conductive support having an photosensitive layer formed thereon where said layer comprises titanium dioxide and zinc oxide in a specific amount of zinc oxide based on the total amount of titanium dioxide and zinc oxide and a method for manufacturing the masters from the elments by subjecting the same to charging, exposure, development and lipophobicating treatment.

Abstract: A photoimageable composition, useful as a photoresist for forming a printed circuit board, is both alkaline aqueous developable but, subsequent to exposure and development, is processable in highly alkaline environments, such as additive plating baths and ammoniacal etchants. The photoimageable composition is tack-free and is resistance to polymerization inhibition by oxygen, and is therefore particularly suitable for contact printing. The photoimageable composition comprises A) between about 25 and about 75 wt % of a binder polymer, B) between about 20 and about 60 wt % of a photopolymerizeable material which is a multifunctional photopolymerizeable monomer or short chain oligomer, and C) between about 2 and about 20 wt % of a photoimageable chemical system, the weight percentages being based on the total weight of components A)-C).

Abstract: An electronograph developing agent containing polymerized particles of non-uniformly-shaped aggregated materials obtained by aggregated of colloidal oil drops, each having a developing-agent core made of a polymerized substantially spherical resin fine particle and a coloring agent adhered onto the resin fine particle by a static force, and a monomer for swelling the developing-agent core.

Abstract: The present invention provides a lithographic printing plate comprising a substrate and a photocurable polymeric photoresist, such as those based on free-radical initiated photocuring mechanisms. To constrain detrimental and undesired activity of excess free radicals, an embodiment of the printing plate is further provided with a free-radical regulating system. In a particular embodiment, the free-radical regulating system is provided as an overcoat, the overcoat being a light-transmissive overcoat and comprising a polymer having a pendant free-radical trapping group. A particular polymer for the overcoat has the formula ##STR1## wherein, m is from approximately 20% by weight to approximately 95% by weight, and n is from approximately 0% by weight to approximately 75% by weight. Capable of deactivating free-radicals actinically generated in the photoresist subsequent to exposure, the polymer is soluble in fountain or ink solution and incompatible with the photoresist.

Abstract: Pressure sensitive adhesives (PSA) having a reduced volatile fraction content are provided by a process which comprises extracting a cured PSA with a fluid in or near its supercritical state. The process provides PSAs and articles containing PSAs which meet the volatility requirements of ASTM E-595. A silicone PSA transfer film having utility in outer space is obtained.

Abstract: An electrodepositable photoresist composition comprising an aqueous dispersion of: (a) a water-dispersible neutralized cationic polymeric material having a pendant unsaturation, (b) a nonionic unsaturated material and (c) a photoinitiator; characterized in that it can form smooth, thin and pinhole free coatings and further characterized in that the film is capable of being selectively insolubilized by patterned radiation exposure such that the unexposed portion of the film is soluble in dilute aqueous acid and the exposed portion is insoluble in said aqueous acid.

Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.

Abstract: The present invention provides a photosensitive resin composition into which a photosensitive group can be easily given and introduced and which is excellent in conservation, stability, heat resistance, practical physical properties and sensitivity and which can inhibit cracks from occurring at the time of development.The photosensitive resin composition of the present invention comprises 100 parts by weight of a polyimide, 10-100 parts by weight of an isocyanurate having a (meth)acrylic group, 10-100 parts by weight of a polyalkylene glycol di(meth)acrylate, and 0.5-20 parts by weight of a photopolymerization initiator. This composition can be utilized to obtain a patterned polyimide film having heat resistance.This composition can be applied to uses of electronic materials such as interlayer films of multi-layer boards of printed-wiring boards, and the like.

Abstract: Disclosed is a positive type resist composition which can form a good pattern by subjecting a resist layer to plural exposures and developments, which results in excellent adhesion between the resist layer and a substrate. The composition comprises:(a) a polymer having an acid value of 2 to 200, prepared from 20 to 94% by weight of a t-butyl ester of a .alpha.,.beta.-ethylenically unsaturated carboxylic acid, 5 to 79% by weight of a (meth)acrylate of the formula:CH.sub.2 .dbd.C(R.sub.1)--COO--(R.sub.2 --O).sub.n --R.sub.3 Iwherein R.sub.1 is hydrogen or a methyl group, R.sub.2 represents ##STR1## wherein R.sub.4 represents hydrogen or an alkyl group, R.sub.5 represents hydrogen or an alkyl group, R.sub.6 represents a branched or straight chain alkylene group, provided that a total carbon number of R.sub.4, R.sub.5 and R.sub.6 is 1 to 5, R.sub.3 is an alkyl group, an aryl group or an aralkyl group having 1 to 6 carbon atoms, and n is an integer of 1 to 10 and 1 to 75% by weight of another .alpha.,.beta.

Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.

Abstract: An electrophotographic photosensitive member having a photosensitive layer formed on a supporting member and a protective layer formed on the photosensitive layer if necessary. At least one of the photosensitive layer and the protective layer is formed of a material containing a cured resin obtained by end-reactive curing of a polycarbonate having glycidyl end groups.

Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.

Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.

Abstract: A method of producing an aperture grill of a CRT display device is disclosed. The aperture grill is of a small thickness of the order of 20 to 100 .mu.m. To a metal plate with front and rear surface resin layers are applied front slit pattern mask with a single broad slit pattern and a rear slit pattern mask with two adjacent, narrow slit patterns. With these two masks disposed in opposition, the slit patterns are printed and developed on the resist layers. Thereafter, etching is carried out on the rear surface of the metal plate via the rear resist layer, and rear cavities are formed in the metal plate. Then, a reinforcing, etchant-proof film is attached to the rear resist layer to cover the rear cavities, and thereafter etching is carried out on the front surface of the metal plate via the front resist layer, to thereby form a front cavity.

Abstract: A developing machine and a developer carrier therefor, for visualizing an electrostatic latent image formed on an electrostatic latent image carrier by adhesion of a developer which is carried while adhering on the surface of the developer carrier and given electric charge by triboelectricity. The developer carrier has a resin surface layer containing a charge-imparting agent selected from the group consisting of an iron complex, a basic amino acid, a polyamide fine powder, and a stearic acid salt.

Abstract: A negative or positive photoresist composition which comprises an alkali soluble resin containing at least one resin selected from the group consisting of a partially alkyletherified polyvinylphenol and a partially alkyletherified hydrogenated polyvinylphenol, a photo-induced acid precursor containing at least a kind of sulfonic acid ester of N-hydroxyimide compounds and crosslinking agent or dissolution inhibitor, and this photoresist composition is excellent in various properties such as heat resistance, film thickness retention, coating property, profile and the like, and further exhibits high sensitivity and high resolution when far ultraviolet rays including excimer laser is used as the light source. It also hardly cause a scam during the developing process.

Abstract: A process for preparing a photohardenable elastomeric element having increased exposure latitude, said element having a support and a photohardenable layer wherein at least (a) a thermoplastic-elastomeric polymeric binder comprising a copolymer of isoprene, (b) a liquid plasticizer, and (c) a petroleum wax, are premixed is described.

Abstract: A color image forming method which comprises forming a mono-color or multi-color toner image on an electrophotographic photoreceptor having a releasing surface by an electrophotographic process; forming a releasable transfer layer on the photoreceptor having the toner image formed thereon; transferring the toner image together with the transfer layer onto a primary receptor; and transferring the toner image together with the transfer layer from the primary receptor onto the final receiving material, and an apparatus for carrying out the image forming method.