Patent application number | Description | Published |
20090018274 | METHOD FOR THE MANUFACTURE OF PRESSURE SENSITIVE ADHESIVES - A method for the manufacture of an adhesive id described, comprising: (A) Providing an initial reaction product of a solution polymerization reaction, the initial reaction product comprising polymer, unreacted polymerizable reactant, non-poly-merizable material, and solvent; and (B) Purifying the initial reaction product by adding an oxidizing agent and a reducing agent to the initial reaction product and allowing the unreacted polymerizable reactant in the initial reaction product to further react, thereby providing a second reaction product comprising additional polymer and a lower level of unreacted polymerizable reactant than was present in the initial reaction product. Optionally, the method of the invention may further comprise: Precipitating the polymer from the second reaction product to provide a precipitated polymer, and separating the precipitated polymer from the remainder of the second reaction product, the precipitated polymer comprising a lower level of non-polymerizable material or unreacted polymerizable reactant or both non-polymerizable material and unreacted polymerizable reactant than was present in the second reaction product. | 01-15-2009 |
20100136265 | ANTISTATIC OPTICALLY CLEAR PRESSURE SENSITIVE ADHESIVE - Provided is an optically clear display-grade adhesive comprising (a) a crosslinked acrylic pressure sensitive adhesive, (b) an organic-soluble and dissociable salt, and optionally (c) a non-hydrophilic plasticizer, wherein the adhesive is electrostatically dissipative transmissive to visible light with low haze. Also provided are with methods of making and using the same. | 06-03-2010 |
20100203338 | DUST SUPPRESSANTS - The present application is directed to an article comprising a dusty surface and a coating on the dusty surface comprising a coating polymer having a Tg less −20° C. and a method of reducing dust. In some embodiments, the polymer has a Tg less than −30° C., and in specific embodiments, the polymer has a Tg less than −45° C. The dusty surface may be, for example, crushed stone, coal, iron ore, gravel, sand or other aggregates (e.g. a roofing granule,) or a soil surface. | 08-12-2010 |
20100227969 | AZIRIDINE CROSSLINKING AGENTS FOR ACRYLIC ADHESIVES - A crosslinkable, pre-adhesive composition is described comprising an acid-functional (meth)acrylate copolymer and an aziridine crosslinking agent, which when crosslinked provides a pressure-sensitive adhesive and pressure-sensitive adhesive articles. | 09-09-2010 |
20110104486 | LOW SURFACE ENERGY ADHESIVE - Adhesives suitable for use with low surface energy materials are described. The adhesive contain an acrylic copolymer, a high glass transition temperature tackifier and a low glass transition temperature tackifier. The acrylic copolymer is the reaction product of a first alkyl(meth)acrylate having at least 5 carbon atoms in the alkyl group, a second alkyl(meth)acrylate having 1 to 4 carbon atoms in the alkyl group, and a vinyl carboxylic acid. Both tackifiers have a Tg greater than the Tg of the acrylic copolymer. The high glass transition temperature tackifier has a Tg of at least 20° C. and the low glass transition temperature tackifier has a Tg of less than 0° C. | 05-05-2011 |
20110112457 | MEDICAL ARTICLES AND METHODS OF MAKING USING IMMISCIBLE MATERIAL - Provided are medical articles (e.g., wound dressings) that include a pressure sensitive adhesive layer and methods of making the medical articles using immiscible materials that increase moisture vapor transmission rates. | 05-12-2011 |
20110112458 | MEDICAL ARTICLES AND METHODS OF MAKING USING MISCIBLE COMPOSITION - Provided are methods of improving the moisture vapor transmission rate of a pressure sensitive adhesive layer in a medical article with a miscible composition, as well as medical articles including the improved pressure sensitive adhesive layer. | 05-12-2011 |
20110269865 | THREE-DIMENSIONAL ARTICLES USING NONLINEAR THERMAL POLYMERIZATION - A method for building three-dimensional articles using a thermal polymerization process in provided. The articles are built by using a composition that includes a thermally polymerizable composition, a thermal initiator, and a nonlinear light-to-heat conversion material such as a reverse saturable dye. The article is built by the sequential exposure of adjacent voxels with a laser beam. Microlens arrays can be used to expose more than one voxel at a time. | 11-03-2011 |
20120135240 | DUST SUPPRESSANTS - A surface having dust particles thereon and a coating on the surface comprising a coating polymer having a Tg less than −20° C. A method of reducing dust, the method including providing a surface having dust particles thereon and coating the surface with a coating polymer with a Tg less than −20° C. | 05-31-2012 |
20130303958 | MEDICAL ARTICLES AND METHODS OF MAKING USING IMMISCIBLE MATERIAL - Provided are medical articles (e.g., wound dressings) that include a pressure sensitive adhesive layer and methods of making the medical articles using immiscible materials that increase moisture vapor transmission rates. | 11-14-2013 |
20140323578 | POLYMERIC COLORANT COMPOSITIONS AND METHODS OF USE - A composition is disclosed. The composition comprises at least one polymeric colorant having a polymer component with a colorant component covalently bound thereto, a medicament, and a liquid vehicle. The at least one colorant component does not react directly or indirectly with the medicament. Methods of using the polymeric colorants, including a method for the preparation of skin as a site for a surgical procedure and a method of treating a medical condition, are also provided. | 10-30-2014 |
20150010748 | BASIC COMPOSITIONS INCLUDING INORGANIC OXIDE NANOPARTICLES AND AN ORGANIC BASE, COATED SUBSTRATES, ARTICLES AND METHODS - Basic coating compositions including inorganic oxide nanoparticles and an organic base are described. Methods of coating a substrate with the coating compositions, coated substrates prepared using the methods, and articles that include the coated substrates are also disclosed. | 01-08-2015 |
20150053341 | PROCESSING TAPES FOR PREPARING LAMINATE ARTICLES - Processing tapes have special properties to permit them to be used to prepare laminate articles, such as security articles. The processing tapes include a backing, a pressure sensitive adhesive layer and a release surface covering the pressure sensitive adhesive layer. The backing is a dimensionally stable transparent polymeric film, and the surface on which the pressure sensitive is coated may be a treated surface. The pressure sensitive adhesive is a transparent pressure sensitive adhesive that includes a crosslinked (meth)acrylate-based polymer and has a refractive index in the range of 1.45-1.55. The (meth)acrylate-based polymer includes alkyl (meth)acrylate monomers and may include acidic monomers. | 02-26-2015 |