Abstract: Covalently-bound, hydrophilic copolymer coatings for implants are disclosed. The copolymer coatings comprise a hydrophobic aryl acrylic monomer, a hydrophilic monomer selected from the group consisting of hydroxyalkyl (meth)acrylates, n-vinyl pyrrolidone and acrylamides, and a reactive plasticizer.

Abstract: Foldable intraocular lenses having a reduced risk of posterior capsule opacification are disclosed. The foldable intraocular lenses have optics that are prepared such that their surface is glassy and their bulk is rubbery.

Abstract: Highly cross-linked, maroporous/mesoporous polymer monoliths are prepard using supercritical carbon dioxide (scCO2) as the solvent and porogen for the polymerisation of monomers having more than one polymerisable group, at a monomer concentration in CO2 of more than 40 vol %. The procedure allows the direct formation of dry, solvent-free, macroporous/mesoporous cross-linked monoliths with large surface area and well-controlled pore size distribution.

Abstract: The invention relates to dental materials which contain a thermochromic dye and which display a reversible change of colour in the event of changes in temperature, so that they can be distinguished from the natural dentin.

Abstract: An improved process for manufacturing a dual cure anaerobic/ultraviolet adhesive. The process includes the first step of mixing a polymerizable (meth)acrylate ester monomer, such as methacrylic acid, a chelating agent and an accelerator. The second step is heating the mixture sufficiently to provide anaerobic curing properties. Next, one or more photoinitiators are added to the composition. No chelating agent is added during the addition of the photoinitiators.

Abstract: A polymer composition for use in forming a stent is described. The composition includes a monomer of an aliphatic ester of acrylic acid which has a glass transition temperature less than 25° C. and a second monomer that copolymerizes with the first monomer and which has a glass transition temperature greater than 25° C. The components in the composition are mixed in amounts suitable to give a copolymer having a glass transition temperature less than 25° C., or in case of block copolymers, having at least one glass transition temperature less than 25° C. A stent including polymer members formed from the described composition is also disclosed.

Abstract: Disclosed are soft, high refractive index, acrylic materials having an elongation of at least 150%. These materials, especially useful as intraocular lens materials, contain an aryl acrylic hydrophobic monomer as the single principal device-forming monomer. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

Abstract: Covalently-bound, hydrophilic copolymer coatings for implants are disclosed. The copolymer coatings comprise 2-phenylethyl (meth)acrylate, a hydrophilic monomer selected from the group consisting of hydroxyalkyl (meth)acrylates and acrylamides, and a reactive plasticizer.

Abstract: The use of methylpropane-1,3-diol mono(meth)-acrylate to prepare oxidatively and/or thermally curable coating compositions, adhesives, and sealing compounds.

Abstract: The present invention relates to a process for synthesis of polymer compositions with reduced catalyst content, wherein ethylenically unsaturated monomers containing less than 0.5 wt % of ethylenically unsaturated monomers with at least one carboxylic group, sulfonic acid group and/or at least one phosphonic acid group relative to the total weight of the ethylenically unsaturated monomers are polymerized by means of initiators containing a transferable group of atoms and of one or more catalysts comprising at least one transition metal in the presence of ligands which can form a coordination compound with the metal catalyst or catalysts and, after the polymerization, the catalyst contained in the polymer is at least partly separated. For this purpose, the polymer composition is filtered, after the polymerization, in the presence of at least one filter aid which contains at least 0.

Abstract: A polymer composition for use in forming a stent is described. The composition includes a monomer of an aliphatic ester of acrylic acid which has a glass transition temperature less than 25° C. and a second monomer that copolymerizes with the first monomer and which has a glass transition temperature greater than 25° C. The components in the composition are mixed in amounts suitable to give a copolymer having a glass transition temperature less than 25° C., or in case of block copolymers, having at least one glass transition temperature less than 25° C. A stent including polymer members formed from the described composition is also disclosed.

Abstract: A packing material for solid phase extraction, which is a particle having an exclusion limit molecular weight of 1×103 to 1.5×104 in gel permeation chromatography using a standard polystyrene as the sample. A column for solid phase extraction and a cartridge for solid phase extraction, a method of using the packing material; and a process for treating a sample using the column or cartridge are also disclosed.

Abstract: Disclosed are soft, high refractive index, acrylic materials having an elongation of at least 150%. These materials, especially useful as intraocular lens materials, contain an aryl acrylic hydrophobic monomer as the single principal device-forming monomer. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

Abstract: Disclosed is an organic anti-reflective film composition suitable for use in submicrolithography, comprising a compound of Formula 13 and a compound of Formula 14 . The organic anti-reflective film effectively absorbs the light penetrating through the photoresist film coated on top of the anti-reflective film, thereby greatly reducing the standing wave effect. Use of organic anti-reflective films of the present invention allows patterns to be formed in a well-defined, ultrafine configuration, providing a great contribution to the high integration of semiconductor devices.

Abstract: Acrylic polymer compositions with crystalline side chains are disclosed. Solution polymerization, aqueous suspension polymerization, and aqueous dispersion polymerization processes for the preparation of the acrylic polymer compositions with crystalline side chains are also disclosed. Methods of use for the acrylic polymer compositions with crystalline side chains, including dry powder coatings; wax replacements in floor polishes and wood coatings; nonwoven and textile coatings; adhesives; and hot melt adhesives are also disclosed.

Abstract: Acrylic polymer compositions with crystalline side chains are disclosed. Solution polymerization, aqueous suspension polymerization, and aqueous dispersion polymerization processes for the preparation of the acrylic polymer compositions with crystalline side chains are also disclosed. Methods of use for the acrylic polymer compositions with crystalline side chains, including dry powder coatings; wax replacements in floor polishes and wood coatings; nonwoven and textile coatings; adhesives; and hot melt adhesives are also disclosed.

Abstract: An ambient oxidative cure composition based on an acrylate functionalized alkyd resin is described. A method of preparing an ambient oxidative cure composition based on an acrylate functionalized alkyd resin is also described. Such ambient oxidative cure compositions may be used in, for example, fast drying, high solid paint or enamel compositions or formulations.

Abstract: A non-aqueous coating composition based on an oxidatively drying alkyd resin and a photo-initiator. An acid or latent acid and one or more compounds of the group of vinyl ethers, acetals, and alkoxysilanes which are reactive in the presence of an acid are incorporated into the coating composition. The vinyl ethers, acetals, and alkoxysilanes preferably are covalently bounded to the alkyd resin. The ratio of the number of oxidatively drying groups present in the alkyd resin to the number of groups reactive in the presence of an acid preferably is in the range of 1/10 to 15/1. The acid preferably is the phosphoric acid dibutyl ester.

Abstract: A stent for insertion into a lumen, having rigid regions and flexible regions along its length, and one or more polymer members coaxially disposed about the outer surface of the stent The polymer members are positioned over the rigid regions of the support stent, while the flexible regions are uncovered and free of polymer members, wherein the polymer members are radially expandable with the support stent.

Abstract: Disclosed is a method of preparing a stable composition of radically copolymerizable monomers, said composition containing firstly at least one monomer which has at least one urea function in its formula and secondly at least one monomer which does not have an isocyanate function in its formula, said method comprising preparing said monomer(s) having urea function(s) by reaction of two types of reagent: at least one radically copolymerizable monomer which has at least one isocyanate function in its formula with at least one amine selected from primary and secondary amines, and incorporating said monomer(s) which does(do) not have an isocyanate function in its(their) formula, prior to said reaction, together with one of said reagents, before adding the other of said reagents, and/or during the addition of said reagents, and/or after said reaction.

Abstract: Disclosed are soft, high refractive index, acrylic materials having an elongation of at least 150%. These materials, especially useful as intraocular lens materials, contain an aryl acrylic hydrophobic monomer as the single principal device-forming monomer. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

Abstract: Structured polyacrylates obtainable by crosslinking, induced by UV irradiation, of a polymer mixture comprising the following components: a) polyacrylate copolymers of the following monomers a1) acrylic acid and/or acrylic esters of the following formula CH2=CH(R1)(COOR2),  where R1=H or CH3 and R2 is an alkyl chain having 1-20 carbon atoms, at 70-99% by weight, based on component (a), a2) olefinically unsaturated monomers containing functional groups, at 0-15% by weight, based on component (a), a3) tert-butyl acrylate, at 1-15% by weight, based on component (a), and b) a photocationic initiator at 0.01-25% by weight, based on the overall polymer mixture, the structuring of the polyacrylates comprising the presence in the polyacrylates of regions of high crosslinking alongside regions of low crosslinking and/or noncrosslinked regions.

Abstract: Dental resin cement materials having unique handling properties are provided that comprise a) filler, b) polymerizable resin, and c) a polymeric handling modifier that is dispersed in the polymerizable resin at 25° C. and that has a molecular weight of between about 500 and 100,000. Components a) b) and c) are present in an amount effective to achieve a Viscosity vs Shear Rate Curve that fits a power law model of F(x)=A xB. The correlation value of the material to this curve is greater than 0.85 for both the increasing and decreasing shear rate curves, and the value of B is less than about −0.01. Resin cements are also provided that comprise acid functionality and water, but which do not comprise an acid reactive filler. Such cements may be self etching, thereby avoiding the need to carry out a separate acid etch step.

Abstract: The invention relates to novel crosslinkable prepolymers comprising structural units of the formula wherein the variables are as defined in the claims, to crosslinked polymers, to either homo-polymers or copolymers prepared from those novel prepolymers, to mouldings produced from the said homo- or co-polymers, and especially to contact lenses produced from those homo- or co-polymers.

Abstract: A copolymer comprising monomers copolymerized in the following percentages by weight: (a) from about 40% to about 75% of a monomer of formula I: Rf—CH2CH2—OC(O)—C(R)═CH2  I (b) from about 15% to about 55% of a monomer of formula II: R2—OC(O)—C(R)═CH2  II (c) from 1.5% to about 5% of a monomer of the formula III: HO—CH2CH2—OC(O)—C(R)═CH2  III (d) from 1.5% to about 5% of a monomer of the formula IV: H—(OCH2CH2)m—O—C(O)—C(R)═CH2  IV (e) from 1% to about 3% of a monomer of the formula V: HO—CH2—NH—C(O)—C(R)═CH2  V (f) from 0% to about to about 9.

Abstract: The present invention is directed to radical-curable adhesive compositions which include a (meth)acrylate component; a thermal resistance-conferring component; and a radical cure-inducing composition. Reaction products of the compositions of this invention exhibit superior resistance of thermal degradation.

Abstract: The present invention is directed to radical-curable adhesive compositions which include a (meth)acrylate component; a thermal resistance-conferring component; and a radical cure-inducing composition. Reaction products of the compositions of the compositions of this invention exhibit superior resistance to thermal degradation.

Abstract: This invention concerns copolymers, which are obtainable by ATRP methods, where a mixture of ethylenically unsaturated monomers consisting of a) 0 to 40% by weight of one or more ethylenically unsaturated ester compounds of formula (I) where R is hydrogen or methyl, R1 means a linear or branched alkyl residue with 1 to 5 carbon atoms, R2 and R3 independently represent hydrogen or a group of the formula —COOR′, where R′ means hydrogen or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98% by weight of one or more ethylenically unsaturated ester compounds of formula (II) where R is hydrogen or methyl, R4 means a linear or branched alkyl residue with 6 to 15 carbon atoms, R5 and R6 independently are hydrogen or a group of the formula —COOR″, where R″ means hydrogen or an alkyl group with 6 to 15 carbon atoms, c) 0 to 80% by weight of one or more ethylenically unsaturated ester compounds of formula (III) where R is hydr

Abstract: High refractive index copolymers suitable for use in ophthalmic devices are disclosed. The copolymers comprise a) two or more monomers of the structure: wherein: X is H or CH3; m is 0-10; Y is nothing, O, S, or NR wherein R is H, CH3, CnH2n+1(n=1-10), iso-OC3H7, C6H5, or CH2C6H5; Ar is any aromatic ring which can be unsubstituted or substituted with H, CH3, C2H5, n-C3H7, iso-C3H7, OCH3, C6H11, Cl, Br, C6H5, or CH2C6H5; a crosslinking monomer having a plurality of polymerizable ethylenically unsaturated groups, and b) a total of about 5 mole % or less of one or more monomers of the structure: wherein: X is H or CH3; W is —CH3 or (CH2═C(—X)—C(═O)—); and n is such that the weight average molecular weight is approximately 600-1000 if W is —CH3 and approximately 400-1000 if W is (CH2═C(—X)—C(═O)—).

Abstract: The present invention relates to a low-odor, polymerizable, cold-curing (meth)acrylate composition for floor coatings exhibiting low health hazards during application and consisting of (A) 50-100 wt % a (meth)acrylate; (B) 0-2 parts by weight per 1 part by weight of (A) of a pre-polymer that dissolves or swells in (A); (C) 2-5 parts by weight per 100 parts by weight of (A+B) of at least one paraffin and/or wax; (D) a redox system, containing an accelerator and a peroxide catalyst or initiator in an amount that is adequate for cold-curing of Component A; and (E) a conventional additive.

Abstract: The present invention provides a macroporous hyperhydroxy polymer formed from a monomer mixture of substantially similar fractions of functional acrylic monomers which are combined to form a compound having a polymer skeleton which provides a high number of hydroxyl sites. The result is a material which, when hydrated, has a pore size relative to oxygen and water which provides a high ratio of free water to bound water. When formed into contact lenses, the material exhibits oxygen permeability approaching that of a static layer of tears of equal thickness and water contents of 95% or greater. The polymer is also suitable for use as burn dressings, bandages, soil hydratants, surface treatments, lubricants and coatings, absorbents, transport membranes and the like.

Abstract: The present invention discloses the synthesis of a novel crosslinker having the following structure: R1 is C(R8) (R9) wherein (R8) is H, or an alkyl group having 1-5 carbon atoms, and (R9) is H, or an alkyl group having 1-5 carbon atoms. R2 is H, or an alkyl group having 1-5 carbon atoms. R3 is H or an alkyl group having 1-5 carbon atoms. R4 is an alkyl group having 1-5 carbon atoms. R5 is H or an alkyl group having 1-5 carbon atoms. R6 is H or an alkyl group having 1-5 carbon atoms. R7 is C(R10) (R11) wherein (R10) is H, or an alkyl group having 1-5 carbon atoms, and (R11) is H, or an alkyl group having 1-5 carbon atoms. The crosslinker is stable in a basic environment, but decomposable in an acidic environment.

Abstract: The present invention is directed to an acrylic resin composition obtained by adding a non-crosslinked polymer powder having a bulk density within the range from 0.1 to 0.7 g/ml, an oil absorption based on linseed oil within the range from 60 to 200 ml/100 g and a degree of swelling by methyl methacrylate of 16-fold or more as a thickening agent to acrylic syrup; and acrylic premix obtained by mixing an inorganic filler with this composition; and acrylic premix obtained by extruding constituent components by a kneading extruder to continuously form the mixture; and a method for producing an acrylic artificial marble in which these acrylic premixes are cured.

Abstract: A methyacryloyl or acryloyl derivative of an ester of cyanoacetic acid may be of the formula: CN—CH2—COOR2OCOCR1═CH2. R1 may be H or CH3, and R2 may be one of the group of moieties including alkyl, alkenyl, alkynyl, alkoxyalkyl, poly (oxyalkyl), aryl, cycloalkyl, and heterocyclyc radical, or substitited combinations thereof. Further, R2 may include between 1 and 16 carbon atoms or heteroatom ring members.

Abstract: The present invention provides a macroporous hyperhydroxy polymer formed from a monomer mixture of substantially similar fractions of functional acrylic monomers which are combined to form a compound having a polymer skeleton which provides a high number of hydroxyl sites. The result is a material which, when hydrated, has a pore size relative to oxygen and water which provides a high ratio of free water to bound water. When formed into contact lenses, the material exhibits oxygen permeability approaching that of a static layer of tears of equal thickness and water contents of 95% or greater. The polymer is also suitable for use as burn dressings, bandages, soil hydratants, surface treatments, lubricants and coatings, absorbents, transport membranes and the like.

Abstract: An aqueous dispersion comprising a copolymer which is the polymerization product of a mixture of vinylic monomers wherein from about 5% to about 90% by weight of the vinylic monomers are selected from co-esters of a drying oil acid and an unsaturated &agr;, &bgr;-polymerizable unsaturated carboxylic acid, contains from about 0.5% to about 50% by weight based on the weight of the copolymer of a hydrophobic ester or partial ester of a drying oil acid and a polyol. The copolymer polymerized in the presence of the hydrophobic ester or partial ester is characterized by a relatively low gel content, and by a relatively broad, multi-nodal, molecular weight distribution, including a low molecular weight component which acts as a transient plasticizer and coalescing agent. The aqueous dispersions can be formulated into quick drying coating compositions which form smooth protective films on various substrates, without requiring volatile coalescing agents.