Abstract: In various embodiments, the present invention is directed to new low cost initiator compositions for use with the production of well-defined telechelic PIBs (by LC+P of isobutylene). In various other embodiments, the present invention is directed to methods for using these novel compositions as initiators for isobutylene (IB) and other cationically polymerizable monomers, such as styrene and its derivatives. In still other embodiments, the present invention is directed to structurally new, allyl (and chlorine) telechelic PIBs formed from these new initiator compositions and their derivatives (in particular, hydroxyl telechelic PIB and amine telechelic PIB). In yet other embodiments, the present invention is directed to structurally new polyurethanes, polyureas, and polyurethane ureas made using telechelic PIBs formed from these new initiator compositions.

Abstract: In various embodiments, the present invention is directed to new low cost initiator compositions for use with the production of well-defined telechelic PIBs (by LC+P of isobutylene). In various other embodiments, the present invention is directed to methods for using these novel compositions as initiators for isobutylene (IB) and other cationically polymerizable monomers, such as styrene and its derivatives. In still other embodiments, the present invention is directed to structurally new, allyl (and chlorine) telechelic PIBs formed from these new initiator compositions and their derivatives (in particular, hydroxyl telechelic PIB and amine telechelic PIB). In yet other embodiments, the present invention is directed to structurally new polyurethanes, polyureas, and polyurethane ureas made using telechelic PIBs formed from these new initiator compositions.

Abstract: A coating composition for a metal thin film for coating a vapor-deposited film or sputtered film provided on the surface of a base material, comprising: a coating film forming component containing 50% by weight or more of urethane(meth)acrylate that is a reaction product of hydrogenated xylene diisocyanate and/or hydrogenated diphenylmethane diisocyanate, polyol, and (meth)acrylate having a hydroxyl group.

Abstract: This invention relates to a durable layer for in-mold decoration. The durable layer is formed from a composition comprising (i) a thermally crosslinkable and photochemically or radically graftable polymer, (ii) a non-ethylenical thermal crosslinker, and (iii) a radiation curable multifunctional monomer or oligomer. The durable layer of the present invention has excellent surface quality with a wider geometric tolerance and can be formed at low cost.

Abstract: Disclosed is a radiation-crosslinkable thermoplastic polymer composition, a process for the preparation thereof, an angioplasty balloon and a medical catheter made using such a composition. The composition contains a reactive monomer cross-linker facilitates cross-linking of the reaction product upon contact of the cross-linker-containing composition with energy from a radiation source.

Abstract: The invention provides a photosensitive resin which can readily form, through photo-crosslinking, a surface coating which has hydrophilicity and high bioadaptability; a photosensitive composition containing the photosensitive resin; and a photo-crosslinked structure obtained from the photosensitive composition.

Abstract: A description is given of radiation-sensitive compositions composed of a binder component and low-odor polymeric reaction products composed of the reaction product of aldehydes and ketones.

Abstract: A photoimagable composition suitable for use as a negative photoresist comprising: (A) at least one epoxidized polyfunctional bisphenol A formaldehyde novolak resin; (B) at least one polycaprolactone polyol reactive diluent, wherein the amount of component (A) is from about 95% to about 75% by weight of the sum of (A) and (B) and the amount of component (B) is from about 5% to about 25% by weight of the sum of (A) and (B); (C) at least one photoacid generator in an amount from about 2.5 to about 12.5 parts per hundred parts of resin and reactive diluent, which initiates polymerization upon exposure to actinic radiation; and (D) a sufficient amount of solvent to dissolve (A), (B) and (C); wherein the solvent comprises 2-pentanone, 3-pentanone, and 1,3-dioxolane and mixtures thereof.

Abstract: To provide a coating composition which forms a coating film having excellent fingerprint removability and having favorable abrasion resistance and transparency, and a molded product having a coating film made of a cured product of the composition. An active energy ray curable coating composition comprising an active energy ray curable polymerizable monomer (A), a water and oil repellency-imparting agent (B) and an active energy ray polymerization initiator (C), wherein the water and oil repellency-imparting agent (B) contains a water and oil repellency-imparting agent (B-T) having a moiety (b-1) exerting water and oil repellency, an active energy ray curable functional group (b-2) and a moiety (b-3) excellent in compatibility with the polymerizable monomer (A) and a molded product having a coating film made of a cured product of the composition.

Abstract: The present invention relates to an ultraviolet-curable coating composition comprising: (A) an ultraviolet curable four or more functional groups-containing polyfunctional (meth)acrylate having four or more (meth)acryloyl groups in the molecule and a number average molecular weight of 300 to 2,000, (B) a lactone-modified polymer of polyhydric alcohol mono(meth)acrylate containing 20 to 60 percents by weight of ?-caprolactone ring-opening addition product and having a hydroxyl value derived from the lactone modification of 100 to 180 mgKOH/g, and/or a lactone-modified polyester resin containing 10 to 50 percents by weight of lactone ring-opening addition product and having a hydroxyl value of 50 to 180 mgKOH/g, (C) a non-yellow polyisocyanate compound and/or an amino resin, (D) a light stabilizer and, (E) a photopolymerization initiator, wherein a weight ratio of component (A) against to a total weight of component Components (B) and (C) is 10:90 to 50:50, a weight ratio of component (B) against to component

Abstract: Solvent-based, dual cure coatings incorporating thermally curable blocked polyisocyanates, which also contain unsaturated linkages, and a method for preparing these coatings. The unsaturated linkages, such as acrylate groups, can be crosslinked by free-radical mechanisms such as UV curing.

Abstract: Coating materials curable thermally and with actinic radiation, comprising (A) binder selected from the group consisting of random, alternating and block, linear, branched and comb polyaddition resins, polycondensation resins, and addition (co)polymers of olefinically unsaturated monomers, curable physically, thermally, with actinic radiation and thermally and with actinic radiation; and (B) from 0.2 to 20% by weight, based on the solids of the coating material, of at least one polyisocyanate which is free from blocking agents and by means of internal formation of uretdione groups is blocked up to a reelimination temperature of at least 160° C.; and their use for producing single-coat and multicoat clearcoat systems and multicoat color and/or effect paint systems or as adhesives and sealing compounds.

Abstract: Polyimide precursors contained in resin compositions of the present invention have a polymer structure unit represented by formula (1) below: wherein chemical structure A2 includes an alicyclic compound but not an aromatic compound such as a benzene ring so that they provide excellent light transmission over a wide wavelength range. The polyimide precursors are imidized at 7.5% or more and 36% or less so that they are less soluble in developing solutions and therefore are not dissolved in the developing solutions at unexposed parts. Thus, the resin compositions of the present invention can be used to form a resin film having a precise pattern by exposure and development.

Abstract: The present invention provides a novel photosensitive compound having an azido group suitable for exposure to light of a short wavelength; a photosensitive resin containing the photosensitive compound; and a photosensitive composition containing the photosensitive compound or photosensitive resin. The photosensitive compound containing a photosensitive unit represented by formula (1): wherein R is selected from among the following groups, R: X is selected from among the following groups, X: and each of Y and Z represents a hydrogen atom, an alkyl group, an acetal-group-containing alkyl group, an aryl group, an aralkyl group, or a substituent containing a base-forming nitrogen atom, wherein at least one of R and X contains an azido group.

Abstract: By means of a curing process combining thermal and UV curing it is possible, using compositions comprising (A) a coating system based on a polyacrylate polyol or polyester polyol with melamine, or a polyacrylate polyol and/or polyester polyol with a blocked or unblocked polyisocyanate, or a carboxyl-, anhydride- or amino-functional polyester and/or polyacrylate with an epoxy-functional polyester or polyacrylate, (B) an OH—, NH2—, COOH—, epoxy- or NCO-functional resin containing, in addition, at least one ethylenically unsaturated double bond, which is separated from the functional group by a spacer group, and (C) at least one photoinitiator, to obtain coatings having good surface properties.

Abstract: The invention relates to radiation-curable coating composition containing: a) 10 to 100 wt. % of a urethane (meth)acrylate which contains both (meth)acryloyl groups and free isocyanate groups, b) 0 to 90 wt. % of (meth)acrylates which contain (meth)acryloyl groups but no free isocyanate groups or any isocyanate-reactive groups, the wt. % under a) and b) adding up to 100 wt. %, based on the weight of a)+b), and c) 0 to 10 wt. %, based on the sum of components a) and b) of a UV initiator for free radical polymerization. The invention also relates to metal, plastic, film, wood, leather and mineral substrates coated with the above-mentioned radiation-curable coating composition.

Abstract: These compositions comprise at least one compound (A) and at least one compound (B) containing electron enriched or depleted olefinic double bonds, respectively.

Abstract: A surfacially ultraviolet radiation-crosslinked article formed of a homogeneous composition including an elastoplastic material, a cross-linker component that is cross-linkable by free-radical polymerization, and a free-radical source material generating free radicals in exposure to ultraviolet radiation, wherein the elastoplastic material is surfacially cross-linked by exposure to ultraviolet radiation, wherein the sub-surface bulk volume of the article is non-cross-linked, and the article is resiliently deformable from and resiliently recoverable to a shape of the article when it was exposed to ultraviolet radiation for surfacial cross-linking thereof. The article is particularly amenable to embodiment as a catheter, or other similar medical device for cardiovascular or other medical procedures.

Abstract: A photo curable resin composition, which comprises (A) an acid-modified, vinyl group-containing epoxy resin, (B) an elastormer, (C) a photopolymerization initiator, (D) a diluent and (E) a curing agent, can gives a high performance cured film having distinguished heat resistance, humidity-heat resistance, adhesibility, mechanical characteristics and electrical characteristics, and a photosensitive element, which comprises a support and a layer of the photo curable resin composition laid on the support, has distinguished heat resistance, humidity-heat resistance, adhesibility, mechanical characteristics and electrical characteristics.

Abstract: A printing sheet having a high gloss and an enhanced ink-setting property has an outermost surface coating layer formed on a substrate sheet from an electron beam-cured resin produced from at least one electron beam-curable unsaturated organic compound selected from (A) unsaturated reaction products obtained by first reacting a long chain alkylene (C15 or more) diol compound having a number average molecular weight of 300 to 10,000, with an aromatic, cycloaliphatic or aliphatic polyisocyanate compound and secondly reacting the first reaction product with a (meth)acrylate of a hydroxyl compound.

Abstract: This invention relates to star-branched polymers containing pendent olefinic groups which have been crosslinked using actinic radiation and the use of these polymers in adhesives and coating applications.

Abstract: A method of modifying the surface of a solid polymer substrate comprising the steps of a) generating radicals on the substrate surface by subjecting it to a gas plasma or by subjecting it to UV light, and b) treating the surface with a vapor of a monomer or a monomer mixture comprising cyano acrylate and/or isocyanate, where step b) starts before step a), simultaneously with step a), under step a), or follows immediately after step a), and a polymer substrate modified accordingly; a method of binding an organic binder material to a surface of a solid polymer substrate comprising the steps of modifying the surface of the substrate by said method, and bringing the organic material in contact with the surface of the substrate, and a polymer bonded to an organic material by the last mentioned method.

Abstract: A printing sheet having a high gloss and an enhanced ink-setting property has an outermost surface coating layer formed on a substrate sheet from an electron beam-cured resin produced from at least one electron beam-curable unsaturated organic compound having a dimer acid structure derived from unsaturated higher fatty acid.

Abstract: A macromonomer of the formula I is described:Q--B(L--B).sub.n T (I)wherein n is zero or at least 1.0;Q is a polymerizable group;B may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 8000 and wherein at least one B is a residue from a difunctional polymer or copolymer wherein B has a molecular weight of 248 to 8000 comprising silicone repeat units of formula II ##STR1## where R.sub.1 and R.sub.2 may be the same or different and are selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, aryl, haloalkyl, haloalkenyl, haloalkynyl, haloaryl, heterocyclyl and haloheterocyclyl;L is a difunctional linking group; andT is a terminal group.The macromonomer may be used preferably in the production of contact lenses.

Abstract: Disclosed is a radiation-crosslinkable thermoplastic polyurethane composition comprising (a) the reaction product of: (i) an aliphatic polyisocyanate, and (ii) a polyahl, and (b) a reactive monomer cross-linker. The reactive monomer cross-linker facilitates cross-linking of the reaction product upon contact of the cross-linker-containing composition with photons from a radiation source. Also disclosed is a process for converting this thermoplastic polyurethane into a thermoset polyurethane by irradiating the thermoplastic polyurethane with a beam of photons.

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: The present invention provides a photosensitive resin composition which comprises, as essential components:(A) a polyamic acid having a recurring unit represented by the following formula [I]: ##STR1## wherein R.sub.1 and R.sub.2 each represents an organic group selected from the group consisting of an aromatic group, an alicyclic group, an aliphatic group, and a heterocyclic group and m is 1 or 2,(B) an amide compound having carbon-carbon double bond, and(C) a photosensitizer.

Abstract: A method of protecting carbon/carbon composites against oxidation at high temperatures is disclosed. This comprises coating the composite with a hybrid metal alkoxide/organosilicon polymer. The hybrid polymer is prepared by a method comprising mixing an organosilicon polymer having a plurality of Si-H functional groups with a sufficient quantity to undergo a hydrosilylation reaction of a metal alkenoxide, wherein the metal alkenoxide comprises a metal, metalloid or silicon alkoxide containing at least one alkenoxy group; and initiating the hydrosilylation reaction to form the hybrid polymer.

Abstract: A method of modifying the surface of a solid polymer substrate comprising the steps of a) generating radicals on the substrate surface by subjecting it to a gas plasma or by subjecting it to UV light, and b) treating the surface with a vapor of a monomer or a monomer mixture comprising cyano acrylate and/or isocyanate, where step b) starts before step a), simultaneously with step a), under step a), or follows immediately after step a), and a polymer substrate modified accordingly; a method of binding an organic binder material to a surface of a solid polymer substrate comprising the steps of modifying the surface of the substrate by said method, and bringing the organic material in contact with the surface of the substrate, and a polymer bonded to an organic material by the last mentioned method.