Abstract: The present invention relates to an aqueous-based coating composition for forming strippable, protective coating for protecting surfaces, such as glass, metal, ceramic, plastic or other materials of construction. More specifically, the compositions and coatings formed therefrom of this invention are particularly useful in connection with protecting precision surfaces, such as optical lenses, including but not limited to ophthalmic lenses, telescopic lenses, microscopic lenses, and the like, which protection is desirably only of a temporary nature.

Abstract: A photoactivatable reagent useful as a chain transfer reagent for providing a semitelechelic polymer having one or more terminal photoactivatable groups. The reagent provides one or more photoactivatable groups and one or more sulfhydryl (or other chain transfer) groups, the photoactivatable and chain transfer groups optionally being joined together by a spacer group. The reagent can be used to prepare a polymer by serving to initiate the polymerization of ethylenically unsaturated monomers. The reagent itself becomes an integral part of the resultant polymer, thereby providing the polymer with a terminal photoactivatable nature. The method provides a number of benefits, including the ability to provide homogeneous photoactivatable polymer compositions, e.g., in terms of the uniform location of the photogroup(s) on the terminal portion of each polymer molecule and the ability to build a desired nonpolar quality, and in turn improved surfactancy, into otherwise polar polymers.

Abstract: Opaquely pigmented or thick filmed powder coatings for heat sensitive substrates, such as wood, wood composites, for example, medium density fiber board, and plastics, that can be fully cured, especially near the substrate, through the incorporation of a dual cure system in the powder comprising a thermal initiator, such as a peroxide, along with a UV initiator. The UV initiator cures the surface, while the thermal initiator cures at the substrate. Surprisingly, virtually no pregelation occurs during the heated melt and flow out step prior to UV curing. Consequently, the hardened film finish formed on the surface exhibits exceptional smoothness which is comparable to that of traditional UV curable powders. The hardened film finish is also fully cured throughout and exhibits exceptional adhesion to the substrate which cannot be achieved with traditional UV curable powders that have been pigmented.

Abstract: Free-radically polymerizable release coating compositions containing conductivity enhancers, which are capable of being electrosprayed onto a substrate. The compositions comprise (a) about 100 parts by weight of one or more free-radically polymerizable vinyl monomer(s), (b) from about 0.05 to about 250 parts by weight of one or more polydiorganosiloxane polymer(s) copolymerizable with the vinyl monomer(s), and (c) from about 0.10 to about 10 parts by weight, based on 100 parts by weight of (a) and (b), of one or more non-volatile conductivity enhancer(s), which are soluble in the monomer(s) and which do not interfere with polymerization, wherein the composition may be electrosprayed.The composition may further comprise from about 0.1 to about 5 parts by weight of one or more initiator(s) based on 100 parts by weight of monomer(s) and polydiorganosiloxane polymer(s).Another embodiment of the present invention further comprises at least 0.

Abstract: A process for the preparation of a radiation-curable acrylate composition, wherein to compounds A containing at least 2 acrylic groups there are added benzophenone derivatives which are not copolymerizable by free-radical copolymerization and which contain at least one primary or secondary amino group or a hydroxyl group or a mercapto group.

Abstract: The present invention describes a prepolymer of an aliphatic polyoxaester having a polymerizable end group that may be used to produce hydrogels, surgical devices such as sutures, sutures with attached needles, molded devices, and the like.

Abstract: The present invention describes a prepolymer of aliphatic polyoxaesters containing amines and/or amido groups having polymerizable end groups that may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like.

Abstract: This invention relates to dicyclopentyl-oxyethyl methacrylate acrylic copolymer latices forming photocurable coalesced films and prepared by adding a photoinitiator to the latex, and which are useful for preparing lacquers and paints, particularly for building facades.

Abstract: A method for hydrophilizing a hydrophobic plastic surface which exhibits a hydrophobic polymer that has hydrogens that bind to sp.sup.3 -hybridized carbon atoms, characterized by the steps of: (i) contacting the plastic surface with a liquid having dissolved therein (a) a hydrogen-abstracting UV-initiator and (b) a hydrophilic polymer which has one or more alkene groups; and (ii) irradiating the solution with UV light which activates the initiator.

Abstract: The present invention relates to a hardenable organopolysiloxane composition having a viscosity of less than 30,000 Poise at 25.degree. C. comprising (A) 30 to 75 wt % of a silicone resin, (B) 70 to 25 wt % of a mercapto functional organopolysiloxane, (C) 0.1 to 10 parts by weight per 100 parts by weight of (A)+(B) of a mercapto functional organosilane, and (D) 0.01 to 10 parts by weight per 100 parts by weight of (A)+(B) of a condensation catalyst. The present invention also relates to an article of manufacture obtained by applying the hardenable organopolysiloxane composition to a substrate, exposing the composition and substrate to high energy radiation, and then applying a solid support to the coated substrate.

Abstract: A method of generating reactive species which includes exposing a photoreactor composition to radiation, in which the photoreactor composition comprises a wavelength-specific sensitizer associated with a reactive species-generating photoinitiator. Also described are methods of polymerizing unsaturated monomers and curing an unsaturated oligomer/monomer mixture.

Abstract: A method for decorating a substrate with hot stamping foil comprising the steps of:a) applying an ink composition comprised of a cationically radiation cured cycloaliphatic epoxide to the substrate in a predetermined design, said ink being operable when cured to bond to the substrate,b) curing the ink on the substrate by exposing to the radiation by which it is curable, thereby bonding the ink composition to the substrate,c) pressing a sheet of hot stamping foil against the substrate with a die heated to a temperature sufficient to cause a portion of the hot stamping foil to adhere to the heated, cured ink design but not to the ink-free areas of the substrate, andd) removing the die, thereby leaving behind a portion of the foil adhered to the ink design.

Abstract: Pressure sensitive adhesives that cure to a high cohesive strength at room and elevated temperatures, and a method for making such adhesives, are provided. The adhesives comprise an acrylic copolymer compounded with a pigment and a hydrogen-abstracting photoinitiator. A tackifier and/or multifunctional acrylate or methacrylate can also be added. The acrylic copolymer is prepared from a substantially acid-free monomer mixture of at least one alkyl acrylate and a tertiary amine-containing monomer, such as DMAPMA. Other monomers, including polar vinylic monomers and diesters of ethylenically unsaturated dicarboxylic acids are, preferably, also included. Despite the presence of titanium dioxide or other pigments, the compounded copolymers are UV-cured to a high cohesive strength through the combination of tertiary amine functional groups and hydrogen-abstracting photoinitiators, which form synergistic pairs when irradiated, leading to free radical formation and polymer cross-linking.

Abstract: The present invention relates to a process for preparing an alkoxy silyl-terminated material, which has at least two alkoxy groups on both terminal ends, said process comprising reacting in the presence of a catalytically effective amount of an organo-lithium reagent an alkoxysilyl-terminated first reactant with a second reactant having both ends of its chain terminating in a silanol. The alkoxy silyl-terminated material may have a variety of polymer backbone types such as silicone, polyurethane, polyamide and the like. These materials are intended to cure by either moisture or photo cure or by dual moisture and photo cure mechanisms. The alkoxy silyl-terminated material is preferably an organopoly-siloxane having at least two alkoxy groups at both terminal ends.

Abstract: A polymer composite is described having a bicontinuous structure of two substantially nonporous phases, one being a hydrophilic polymer and the other being a hydrophobic polymer. The bulk properties of both polymers are retained in the polymer composite. The composite is prepared from a microemulsion comprising a free-radically ethylenically unsaturated polar species in the aqueous phase, a free-radically ethylenically unsaturated hydrophobic monomer in the oil phase, and surfactant.

Abstract: Compounds of formula I: ##STR1## are disclosed. The compounds are photoinitiators which can be functionalized by means of ethylenic groups or can be bonded to H-active substances, in order, for example, to modify surfaces by means of photopolymerizable substances. The compounds are especially useful in the manufacture of contact lenses.

Abstract: A radiation-curable release composition is disclosed which comprises:(A) an organopolysiloxane represented by the formulaRSi(CH.sub.3).sub.2 --O--(Si(CH.sub.3).sub.2 O).sub.n (Si(CH.sub.3)(R)O).sub.m Si(CH.sub.3).sub.2 R (I)wherein in Formula (I), each R is --R.sup.1 --O(O)C--C(R.sup.2).dbd.CH.sub.2, --R.sup.1 --O--C(R.sup.2).dbd.CH.sub.2 or is derived from an organic molecule containing both ethylenic unsaturation and epoxide functionality; R.sup.1 is a hydrocarbylene group; each R.sup.2 is independently hydrogen or a methyl or ethyl group; m is a number from about 1 to about 15; and n is a number from about 50 to about 300; and(B) an organosiloxane copolymer represented by the formula(R.sub.3 SiO).sub.x (SiO.sub.4/2).sub.y (II)wherein in Formula (II), each R is independently a hydrocarbon group or a group represented by the formula--O(O)C--C(R*).dbd.CH.sub.2wherein R* is hydrogen or a methyl or ethyl group; x is a number from about 0.

Abstract: The present invention sets forth the incorporation of a substituted 2-phenyl-4,6-bis (trichloromethyl)-1,3,5-triazine in photoresists of lithographic printing plates for the purpose of promoting their shelf-life, room light stability, and developability. The present invention provides a photocurable composition comprising at least a photopolymerizable ethylenically unsaturated monomer having at least one terminal ethylenic group and capable of forming a polymer upon exposure to actinic radiation; and an s-triazine capable of initiating free radical polymerization of the photopolymerizable ethylenically unsaturated monomer and being represented by the following general formula [I]: ##STR1## wherein R.sub.1 is either OR.sub.4 or NR.sub.5 R.sub.6, wherein R.sub.5 and R.sub.6 may or may not be identical with each other, either R.sub.5 or R.sub.6 may represent hydrogen, and wherein R.sub.4 and at least one of R.sub.5 and R.sub.

Abstract: The present invention relates to a permanently removable, low melt viscosity acrylic pressure-sensitive adhesive comprising a lower alkylacrylate, a higher alkylacrylate and a crosslinker.

Abstract: Resin compositions useful for filament winding applications comprising an epoxy component including at least one polyepoxide resin curable by heat, an olefinicially unsaturated monomer component including at least one polyolefinically unsaturated monomer curable by actinic radiation, a cyanate ester component including at least one cyanate ester compound having at least two cyanate functional groups per molecule, at least one organic peroxide, at least one photoinitiator, and a heat activated curing agent for epoxides. The compositions have a viscosity less than about 2000 centipoise (cps) and are capable of retaining this viscosity for at least about 6 months at about ambient temperature. The resins are capable of being immobilized by actinic radiation exposure and further heat cured without substantial resin drip. One or more organic peroxides are employed, selected from the group of organic peroxides having 10 hour decomposition half-lives at temperatures of from about 50.degree. C. to less than about 104.

Abstract: A formulation for a resilient gasket coating which is curable by ultraviolet radiation without emitting fumes into the surrounding environment. Different portions of the coating are cured by successive exposure to two different wavelengths of ultraviolet radiation during a continuous in-line process. The first wavelength cures an inner portion of the coating and bonds the coating to the substrate. The second wavelength cures a coating surface. The formulation permits ultraviolet curing of thicker pigmented coatings than have been previously known.

Abstract: A photopolymerizable composition comprising a crosslinking agent, a UV sensitive photopolymerization initiator and a thioether compound having a vinyl ester or vinyl amide component; wherein the crosslinking agent and the thioether may be the same compound.

Abstract: A polymer composite is described having a bicontinuous structure of two substantially nonporous phases, one being a hydrophilic polymer and the other being a hydrophobic polymer. The bulk properties of both polymers are retained in the polymer composite. The composite is prepared from a microemulsion comprising a free-radically ethylenically unsaturated polar species in the aqueous phase, a free-radically ethylenically unsaturated hydrophobic monomer in the oil phase, and surfactant.

Abstract: A clear, photocurable coating composition to be applied over wet nail polish on a nail for binding with the wet nail polish upon exposure to ultraviolet light, consisting of: between 5% and 50% by weight of a film-forming polymer selected from the group consisting of:i) cellulose estersii) acrylic polymers,between 2% and 15% by weight of a photoinitiator selected from the group consisting of:i) benzophenoneii) alkylphenyl ketone, andiii) cyclohexylphenyl ketone;and between 40% and 85% by weight of a photoreactive monomer selected from the group consisting of methacrylic acid esters.

Abstract: A radiation and moisture curable silicone conformal coating composition comprises a silicone fluid of a monovalent ethylenically unsaturated functional group endcapped silicone and at least one (meth)acryl-functionalized silicone; and a photoinitiator effective for radiation curing of the silicone composition. The encapped silicone is the product of a reaction between a silanol terminated silicone and a silane cross linker having joined directly to a silicon atom thereof a monovalent ethylenically unsaturated functional group and at least 2 hydrolyzable groups.

Abstract: A radiation surface-curable RTV silicone composition which subsequent to radiation surface curing thereof, is interiorly moisture-curable in character. Such radiation surface-curable, interiorly moisture-curable RTV silicone composition comprises: a silanol-containing silicone; a silane cross-linker for the silicone, such cross-linker having joined directly to a silicon atom thereof an ethylenically unsaturated functional group and at least two hydrolyzable functional groups; and a photoinitiator effective for radiation surface curing of the silicone composition. Also disclosed is a "liquid potting system" formulation, which is irradiated subsequent to dispensing thereof at the potting locus, so that the radiation surface-cured skin layer overlies and contains (cooperatively with the associated bounding surface(s) of the potting locus) the uncured liquid, so that the potted structure or material is encapsulated in a liquid (damping) medium.

Abstract: A radiation curable functionalized polymer is disclosed. 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 an acrylate or a mixture of acrylates and/or a photosensitizer and/or other functional groups at the para-alkyl groups of the para-alkylstyrene.

Abstract: Proposed is an improved radiation-curable organopolysiloxane composition capable of giving a cured surface film on a substrate surface which exhibits excellent releasability against sticky substances. The composition is obtained by combining two kinds of (meth)acryloxyalkyl-containing organopolysiloxanes in a specified weight proportion, of which one has a relatively large degree of polymerization but contains only a relatively small amount of the silicon-bonded (meth)acryloxyalkyl groups while the other has a relatively small degree of polymerization but contains a relatively large amount of the silicon-bonded (meth)acryloxyalkyl groups.

Abstract: The present invention provides a photo-setting conductive coating composition which is used as an antistatic material constituting articles wherein static electrification must be avoided, such as storage vessels for semi-conductor wafers, electronic/electric parts, floor/wall coverings for a production factory of semi-conductors, etc.The photo-setting conductive coating composition comprising 100 parts by weight of an antimony oxide-containing tin oxide powder (a) having a particle size of 0.01 to 0.4 .mu.m, 10 to 100 parts by weight of a (meth)acrylate compound (b) having at least two (meth)acryloyl groups in a molecule, 10 to 100 parts by weight of an acetal resin (c) having a residual hydroxyl group of 20 to 80 molar %, 0.1 to 10 parts by weight of a photopolymerization initiator (d) and 100 to 1000 parts by weight of an organic solvent (e).

Abstract: A method for the crosslinking of polymeric electrolytes is presented. The method achieves crosslinking by means of ultraviolet radiation. The resulting crosslinked polymers are stable and useful as solid state battery electrolytes.

Abstract: The invention relates to adhesive compositions comprising terpolymers C.sub.6 to C.sub.10 unsaturated .alpha.-olefin monomers, C.sub.2 to C.sub.5 .alpha.-olefin monomers and polyene monomers and an effective amount of photoactive cross-linking agent to cross-link composition upon radiation from a source of active radiation.

Abstract: Disclosed are radiation-crosslinkable elastomeric compositions containing:(a) an elastomeric polymer containing abstractable hydrogen atoms in an amount sufficient to enable the elastomeric polymer to undergo crosslinking in the presence of a suitable radiation-activatable crosslinking agent; and(b) a radiation-activatable crosslinking agent of the formula: ##STR1## wherein: W represents --O--, --N--, or --S--;X represents CH.sub.3 -- or ##STR2## Y represents a ketone, ester, or amide functionality; Z represents an organic spacer which does not contain hydrogen atoms that are more photoabstractable than hydrogen atoms of the elastomeric polymer;m represents an integer of 0 to 6;a represents 0 or 1; andn represents an integer of 2 or greater.Radiation-crosslinked elastomers are prepared by exposing the radiation-crosslinkable elastomeric compositions to radiation (e.g., UV light) to abstract hydrogen atoms from the elastomeric polymer by the resulting radiation-activated crosslinking agent.

Abstract: A UV and moisture-curable organopolysiloxane composition comprising (i) an organopolysiloxane terminated with a radical of formula (1): ##STR1## wherein R.sup.1 is a hydrogen atom or monovalent hydrocarbon radical, each of R.sup.2 and R.sup.3 is a divalent hydrocarbon radical which may contain a NH bond or ether bond, each of R.sup.4 and R.sup.5 is a monovalent hydrocarbon radical which may contain an ether bond, and a is equal to 0 or 1, (ii) a photo-polymerization initiator, and (iii) a curing catalyst. The composition readily cures either upon exposure to UV radiation or upon contact with moisture and from the surface to the deep interior within a short time, yielding cured products having satisfactory physical properties.

Abstract: Vulcanizable organopolysiloxane compositions comprise a hydroxy-terminated organopolysiloxane, an acrylic or methacryllc functional alkoxy silane, a divalent tin compound, an alkoxy-.alpha.-silyl ester, a photopolymerization initiator, and a curing catalyst whereby the composition is cured by UV irradiation and/or by the action of moisture in air. The composition has good shelf stability and can yield rubber elastomers having good physical properties.

Abstract: A process is described for photoinitiated control of inorganic network fotion in the sol-gel process, which comprises eitherA) subjecting one or more hydrolytically polycondensable compounds of constituent elements of glass or ceramic, excluding silicon compounds containing polymerizable organic groups, to hydrolytic polycondensation in a liquid reaction medium to form a sol andirradiating the resulting sol in a structured or unstructured manner in the presence of a photoinitiator which can change the pH of the reaction medium on irradiation, using radiation of a wavelength range in which the photoinitiator absorbs;orB) liberating water in an anhydrous reaction medium which contains an alcohol, one or more hydrolytically polycondensable compounds of constituent elements of glass or ceramic and a photoinitiator which can liberate water by a photochemical reaction or a secondary reaction when irradiated, by structured or non-structured irradiation using radiation of a wavelength range in which the photoinitiato

Abstract: A keto arene-cyclopentadienyl iron complex salt of the formula:[(R.sup.2 CO)(R.sup.1).sub.m C.sub.6 H.sub.5--m Fe.sup.II Cp].sup.+1 A.sup.-1wherein R.sup.1 is an alkyl group, R.sup.2 is an alkyl group or phenyl group, m is an integer of 1 to 5, Cp is an .eta..sup.5 -cyclopentadienyl group and A.sup.-1 is a non-nucleophilic anion, e.g. pentamethylacetophenone-Fe(II)-Cp.sup.+ PF.sub.6.sup.-1 salt or pentamethylbenzophenone-Fe(II)-Cp.sup.+ PF.sub.6.sup.-1 salt, which is useful as a photoinitiator for cationically polymerizable compounds, especially for epoxy resins, and has an improved environmental safety and a high absorptivity, and which can be easily produced by a direct replacement reaction between dicarbonyl-.eta..sup.5 -(2,4-cyclopentadien-1-yl)iron(II) halide and an alkyl substituted keto arene to be replaced for the carbonyl ligands.

Abstract: Photocurable silicone compositions based on capping of a silicone with a silyl diacrylate capper of the formula ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, and R .sub.10 are independently selected from hydrogen, halo, and organo radicals; and n is an integer having a value of from 1 to 4.In specific embodiments, the compositions include a polymodal-cure resin composition comprising an acryloxy-functional capped silicone, and a photocurable silicone gel composition and precursor thereof.

Abstract: A composition useful as a liquid gasket, having high working efficiency and high initial pressure resistance, is provided. The composition, characterized by being curable by ultraviolet light and by moisture, includes (a) a polysiloxane containing, on at least one molecular end, at least one group selected from the group consisting of (meth)acryl, glycidyl, propenyloxysilyl and thiol; (b) a polyorganosiloxane having silanol groups at both molecular ends; (c) a polyorganosiloxane having, on at least one molecular end, a hydrolyzable group; (d) a photopolymerization catalyst; and (e) a condensation catalyst.

Abstract: The instant invention pertains to an organopolysiloxane composition for the formation of a cured release film wherein said organopolysiloxane composition cures rapidly under exposure to ultraviolet radiation to form a cured film that tightly adheres to various types of supports or base materials.The organopolysiloxane composition for the formation of a cured release film of the instant invention is comprised of (A) an organopolysiloxane that contains in each molecule at least 2 higher alkenyl groups as represented by the general formulaH.sub.2 C.dbd.CH--(CH.sub.2).sub.n --wherein n has a value of 2 to 8, (B) an organopolysiloxane that contains at least 2 mercaptoalkyl groups in each molecule, (C) an organopolysiloxane selected from the group consisting of organopolysiloxanes that contain in each molecule 1 higher alkenyl group with the general formulaC.sub.2 C.dbd.CH--(CH.sub.2).sub.n -wherein n=2 to 8 and organopolysiloxanes that contain 1 mercaptoalkyl group in each molecule, and (D) a photosensitizer.

Abstract: The present invention provides a silicone/acrylic based pressure-sensitive adhesive composition, adhesive, and adhesive tapes prepared therefrom.

Abstract: An infinite network polymer containing fluorine as a coating or cladding material for optical fibers. Fluoropolymers, such as silicone amine C.sub.0 -C.sub.16 fluoroepoxy resin and cis-trans fluoropolyol polyacrylate, reduce water permeability because of the bonding between the fluoropolymer and the substrate. The fluoropolymers exhibit substantially increased moisture resistance when compared to conventional fiber coating materials. Variations in chemical structure effect physical properties of the polymer and different compounds can be chosen for their desired physical properties, such as moisture resistance or abrasion resistance. Incorporation of fluorine into the polymer structure lowers the index of refraction such that the polymer can be used as a cladding for silica glass in an optical fiber. One fluoropolymer formulation allows in-line coating of the optical fiber in a oxygen environment.

Abstract: Liquid highly active photoinitiators are obtained by dissolving a solid photoinitiator of the titanocene type in liquid photoinitiators of the acetal or ketal type. The liquid mixtures have a long dark storage stability.

Abstract: Radiation-reactive mixtures suitable for producing insulating layers and printed circuits are composed of certain precursors for preparing polyimides polyisoindoloquinazolinediones, polyoxazinediones, polyquinazolinediones or polyquinazolones and aryl-containing carbonyl compounds which when excited by UV radiation are capable of hydrogen abstraction, these mixtures undergoing solubility differentiation on irradiation with actinic light.

Abstract: A photopolymerizable rubber being obtained by copolymerizing four compounds consisting of a dienic liquid rubber having hydroxyl groups, an ethylenically unsaturated monomer having hydroxyl groups, a dihydric alcohol having a molecular weight of less than 2,000 and a diisocyanate compound. The photocured product of this composition has higher tensile strength and elongation than that of the prior photopolymerizable rubbers.

Abstract: Disclosed is a coating composition comprising (A) 10 to 70 parts by weight of a poly(meth)acrylate of mono- or polypentaerythritol, (B) 5 to 50 parts by weight of a urethane poly(meth)acrylate having at least two unsaturated double bonds in the molecule, (C) 5 to 50 parts by weight of a poly[(meth)acryloyloxyalkyl] (iso)cyanurate, (D) 2 to 30 parts by weight of an ultraviolet absorber, (E) 0.1 to 10 parts by weight of a photopolymerization initiator, and (F) 0.1 to 5 parts by weight of a hindered amine type light stabilizer, provided that the combined amount of components (A) to (F) is 100 parts by weight. This coating composition can form a crosslinked and cured film having excellent abrasion resistance, surface smoothness, thermal resistance, chemical resistance, durability, weather resistance and adhesion to the substrate.

Abstract: Radiation-sensitive, ethylenically unsaturated compounds and a process for their preparation. The ethylenically unsaturated organic compounds are of the general formula ##STR1## where R is alkyl, aryl or a radical R.sup.1 andR.sup.1 is a radical ##STR2## where R.sup.2 to R.sup.6 are each H, alkyl, OH, OAlkyl, SH, SAlkyl, halogen, N (Alkyl).sub.2 or N (Alkyl) (Aryl) and at least one but not more than three of the radicals R.sup.2 to R.sup.6 is or are a radical ##STR3## where X is alkylene, cycloalkylene, oxaalkylene or arylene, Y is H or CH.sub.3 -- and Z is O or NY.The novel radiation-sensitive ethylenically unsaturated compounds are suitable for the preparation of polymeric radiation-sensitive compounds.

Abstract: Photosensitive compositions comprisinga) at least one solid film-forming polyphenol,b) at least one compound of formula I ##STR1## wherein n is 2, 3 or 4, Ar is an n-valent benzene or naphthalene radical or a divalent radical of formula II ##STR2## Q is a direct bond, --O--, --SO--, --SO.sub.2 --, --CH.sub.2 --, --C(CH.sub.3)(phenyl)- or --C(CH.sub.3).sub.2 --, each of R.sub.1 and R.sub.2, independently of the other, is C.sub.1 -C.sub.8 alkyl, or phenyl or naphthyl each of which is unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, or R.sub.1 and R.sub.2 together are 1,2-phenylene or --[C(R')(R")].sub.m --, each of R' and R", independently of the other, is hydrogen, C.sub.1 -C.sub.4 alkyl or phenyl and m is 2, 3 or 4, andc) at least one compound that forms an acid under actinic radiation are described.Those compositions are used as negative resists, especially for producing printing plates, printed circuits and integrated circuits.

Abstract: An optical molding composition is used for casting and does not cause irritation to the skin or possess a bad smell. This composition comprises1. an actinic radiation-curable, radical-polymerizable organic compound comprising(1) one or more polythiol compounds and(2) one or more polyene compounds each having at least two actinic radiation-reactive carbon-to-carbon double bonds in the molecule, and2. an actinic radiation-sensitive radical polymerization initiator.

Abstract: An acryloxy-functional capped silicone formed as a reaction product of:(i) a silyl diacrylate compound of the formula ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, and R.sub.10 are independently selected from hydrogen, halo, and organo radicals; and n is an integer having a value of from 1 to 4; and(ii) a silicone having (A) functionality which is reactive with an acryloxy functionality of the silyl diacrylate compound, and (B) additional functionality imparting (directly or by reaction with a co-reactant) further curability to the silicone by another modality (e.g., moisture curability, heat curability, etc.)The capped polyfunctional silicone may suitably be formulated with (a) an effective amount of a photoinitiator for partial curing of the acryloxy-functional capped silicone under photoinitiating curing conditions, and (b) suitable curatives, initiators, accelerators, etc.

Abstract: A composition which is cured upon exposure to ultraviolet light in the absence of solvent is disclosed. The liquid composition is prepared by combining a liquid maleate polyester and at least one of a vinyl compound and an allyl functional compound. A photoinitiator is then added to the polymerizable liquid composition. A substrate is impregnated with the polymerizable liquid composition and exposed to actinic energy of a sufficient dosage for a sufficient amount of time to polymerize the composition to a sufficient degree to impart useful properties to the substrate. The composition can be used as a binder for fiberglass insulation, in the manufacture of transparent or semi-transparent paper and to manufacture paper for use in photocopy machines.