Patent application number | Description | Published |
20110256338 | FILMS HAVING STRUCTURED SURFACE AND METHODS FOR MAKING THE SAME - A film, and method of producing, wherein the film ( | 10-20-2011 |
20120211918 | METHOD FOR MAKING POLYLACTIDE FILMS - A method for forming a polylactide film includes the steps (a) through (c). In step (a), a treated tool surface is provided with a release coating. The treated tool surface is maintained at a predetermined temperature of about the glass transition temperature of the polylactide or higher. In step (b) the treated tool surface is contacted with a molten polylactide composition to provide a polylactide film The film is at least partially crystalline, and the crystallinity of the polylactide film is enhanced due to exposure of the molten polylactide composition to the treated tool surface at the predetermined temperature. In step (c) the polylactide film is removed from the treated tool surface. Additionally, a film is provided that is made by the foregoing method, and the film may be formed into an article or a part of an article. In some cases, the article is a disposable garment such as a diaper. In other cases, the article may be a tape made with the foregoing film, where the film includes first and second major surfaces and a layer of adhesive on at least one of the major surfaces. | 08-23-2012 |
20120270978 | PLASTICIZED POLYLACTIDE - A composition that includes polylactide resin and plasticizer, the plasticizer having a chemical formula: wherein R may be the same or different and wherein at least one R is a branched alkyl group having a carbon chain length of C | 10-25-2012 |
20130274385 | CONTROLLED DEGRADATION FIBERS - There is provided controlled degradation fibers, and methods of making such controlled degradation fibers. | 10-17-2013 |
20130310491 | DEGRADABLE FIBERS - There is provided self-degrading fibers, and methods of making and methods of using such self-degrading fibers. | 11-21-2013 |
20130338271 | DEGRADABLE MATERIALS - The present disclosure relates to a degradable material comprising (a) from about 60 weight percent to about 97 weight percent of a first material based on the total weight of the degradable material, and (b) from about 3 weight percent to about 40 weight percent of a second material based on the total weight of the degradable material, where the second material is an oligomer comprising lactate and giycolate. In another aspect, the present disclosure provides a degradable material comprising (a) poly lactic acid, and (b) an oligomer comprising lactate and giycolate, wherein the degradable material has a Tg less than 56° C. In still another aspect, the present disclosure provides a degradable material comprising (a) poly lactic acid, and (b) an oligomer comprising lactate and giycolate, wherein the degradable material has a tan delta peak of less than 65° C. It has been surprisingly found that the degradable materials according to the present disclosure provide physical properties that are not inherent to poly lactic acid alone. It has also been surprisingly found that the degradable materials disclosed herein provide improvements with respect to the processability, production costs, flexibility and ductility without decreasing their degradability. | 12-19-2013 |
20150298366 | METHOD OF MAKING PRECISION-MOLDED ARTICLES BY POLYMERIZING ETHYLENICALLY-UNSATURATED MATERIALS IN A MOLD USING IONIZING RADIATION - Methods of (co)polymerizing ethylenically-unsaturated materials, including the steps of providing a mixture of free radically (co)polymerizable ethylenically-unsaturated material in a mold, exposing the mixture in the mold to a source of ionizing radiation for a time sufficient to initiate (co)polymerization of at least a portion of the free radically (co)polymerizable ethylenically-unsaturated material, and allowing the free radically (co)polymerizable ethylenically-unsaturated material to (co)polymerize in the mold while continuing to expose the mixture to the source of ionizing radiation for a time sufficient to yield an at least partially (co)polymerized (co)polymer. The ethylenically-unsaturated materials are selected from vinyl-functional monomers, vinyl-functional oligomers, vinyl-functional macromers, and combinations thereof. The mixture is preferably free of thermally-induced or UV-induced free radical polymerization initiators. The source of ionizing radiation may be a gamma ray source, an x-ray source, an electron beam source with an emission energy greater than 300 keV, and combinations thereof. | 10-22-2015 |
20150299532 | METHOD OF POLYMERIZING ETHYLENICALLY-UNSATURATED MATERIALS USING IONIZING RADIATION - Methods of (co)polymerizing ethylenically-unsaturated materials, including the steps of providing a non-deaerated mixture of free radically (co)polymerizable ethylenically-unsaturated material in a batch reactor, exposing the non-deaerated mixture to a source of ionizing radiation for a time sufficient to initiate (co)polymerization of at least a portion of the free radically (co)polymerizable ethylenically-unsaturated material, and allowing the free radically (co)polymerizable ethylenically-unsaturated material to (co)polymerize under essentially adiabatic conditions while continuing to expose the mixture to the source of ionizing radiation for a time sufficient to yield an at least partially (co)polymerized (co)polymer. The ethylenically-unsaturated materials are selected from vinyl-functional monomers, vinyl-functional oligomers, vinyl-functional macromers, and combinations thereof. The mixture is preferably free of thermally-induced or UV-induced free radical polymerization initiators. The source of ionizing radiation may be a gamma ray source, an x ray source, an electron beam source with an emission energy greater than 300 keV, and combinations thereof. | 10-22-2015 |