In an embodiment, a monolayer, sealable film includes polyethylene; and between about 0.2 wt % and about 10 wt % of a branched cyclic olefin copolymer (bCOC) comprising: between about 50 wt % to about 98 wt % ethylene; and between about 2 wt % and about 50 wt % cyclic olefin derived monomer units. In another embodiment, a receptacle for containing organic material (such as food), gas, and/or fluent material includes a storage zone; a sealing zone extending around at least a portion of the storage zone; and a film structure having an exterior surface and a storage side surface facing the storage zone, wherein the film structure comprises a gas barrier film, comprising: polyethylene; and between about 0.2 wt % and about 10 wt % of a branched cyclic olefin copolymer (bCOC) comprising: between about 50 wt % and about 98 wt % ethylene; and between about 2 wt % and about 50 wt % cyclic olefin derived monomer units.

A polymeric substrate is disclosed. The polymeric substrate comprises a barrier layer including a polymeric material comprising about 50 wt. % or more of at least one polyolefin polymer and 50 wt. % or less of a hydrocarbon resin. The polymeric material exhibits a DTUL of 30 C. or more and a tensile modulus of 500 MPa or more and/or a flexural secant modulus of 500 MPa or more. The barrier layer has a thickness of greater than 200 m to 6,500 m. A shaped polymeric article comprising the polymeric substrate is also disclosed.

There is disclosed a rubber sponge having a foamed part comprising a vulcanized synthetic rubber, wherein a average cell diameter in the foamed part is 10 to 350 m, and a standard deviation of the cell diameters in the foamed part is 10 to 150 m. The content of the synthetic rubber may be 20 to 80% by mass based on a mass of the rubber sponge.

Described is a polyethylene composition comprising at least one polyethylene having a crystallinity of less than 60, or 55, or 50% and within a range from 0.2 wt % to 15 wt % of cyclic-olefin copolymer and within a range from 0.2 wt % to 15 wt % of hydrocarbon resin, by weight of the polyethylene composition. The polyethylene compositions can be formed into useful articles such as films and injection molded and thermoformed articles.

The present invention is directed to solventborne film-forming compositions comprising: a) a non-chlorinated, linear polyolefin polymer prepared from a reaction mixture comprising 0.5 to 5 percent by weight maleic anhydride based on the total weight of monomers in the reaction mixture; b) an aminoplast: and c) a polymer component comprising: i) an addition polymer prepared from a reaction mixture comprising coumarone; and/or ii) an alkyd resin. The present invention is also drawn to methods of improving fuel resistance of a coated article, comprising: (1) applying the solventborne film-forming composition above to a substrate to form a coated substrate; (2) applying a curable film-forming composition to at least a portion of the coated substrate formed in step (1) to form a multi-layer coated substrate; and (3) heating the multi-layer coated substrate formed in step (2) to a temperature and for a time sufficient to cure the film-forming composition.

A release layer of a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell comprises a cyclic olefin polymer comprising an olefin unit having a C.sub.3-10alkyl group as a side chain thereof. The release layer may have a glass transition temperature of about 210 to 350 C. The release layer may have a transition point of a dynamic storage modulus E in a range from 50 to 100 C. An ion exchange layer comprising an ion exchange polymer may be laminated on the release layer of the release film by a roll-to-roll processing to produce a laminate. The release film may be separated from the laminate to give the membrane electrode assembly. The release film achieves improved production of a membrane electrode assembly (an electrolyte membrane and/or an electrode membrane) of a polymer electrolyte fuel cell.

Microporous sheet product and methods of making and using the same. In one embodiment, the microporous sheet product is made by a process that includes melt-extruding a sheet material using an extrusion mixture that includes (i) a cyclic olefin copolymer, (ii) an electrolyte swellable thermoplastic, and (iii) a compatibilizing agent that promotes mixing of the cyclic olefin copolymer and the electrolyte swellable thermoplastic, the compatibilizing agent having a boiling point in the range of 135-300 C. As an example, the cyclic olefin copolymer may be an ethylene-norbornene copolymer, the electrolyte swellable thermoplastic may be polyethylene oxide, and the compatibilizing agent may be mineral spirits. After extrusion, the sheet material may be cooled, and the compatibilizing agent may be removed, forming an ionically-conductive microporous sheet product. The microporous sheet product has high-temperature stability and gels when exposed to a liquid electrolyte, enabling high ionic conductivity when used as a battery separator.

The present invention is directed to film-forming compositions comprising: a) a non-chlorinated, linear polyolefin polymer comprising 0.5 to 10 percent by weight residues of an ethylenically unsaturated anhydride or acid; b) an aminoplast; and c) a component comprising: i) at least one non-chlorinated hydrocarbon having at least 18 carbon atoms and optionally aromatic groups and/or oxygen heteroatoms; and/or ii) an alkyd resin. The present invention is also drawn to methods of improving fuel resistance of a coated article, comprising: (1) applying the film-forming composition to a substrate to form a coated substrate; (2) optionally subjecting the coated substrate to a temperature for a time sufficient to cure the film-forming composition; (3) applying at least one curable film-forming composition to the coated substrate to form a multi-layer coated substrate; and (4) subjecting the multi-layer coated substrate to a temperature and for a time sufficient to cure all of the film-forming compositions.

The present invention is directed to film-forming compositions comprising: a) a non-chlorinated, linear polyolefin polymer comprising 0.5 to 10 percent by weight residues of an ethylenically unsaturated anhydride or acid; b) an aminoplast; and c) a component comprising: i) at least one non-chlorinated hydrocarbon having at least 18 carbon atoms and optionally aromatic groups and/or oxygen heteroatoms; and/or ii) an alkyd resin. The present invention is also drawn to methods of improving fuel resistance of a coated article, comprising: (1) applying the film-forming composition to a substrate to form a coated substrate; (2) optionally subjecting the coated substrate to a temperature for a time sufficient to cure the film-forming composition; (3) applying at least one curable film-forming composition to the coated substrate to form a multi-layer coated substrate; and (4) subjecting the multi-layer coated substrate to a temperature and for a time sufficient to cure all of the film-forming compositions.

A composition for preparing a foam, a foam, and a shoe employing the foam are provided. The composition for preparing a foam includes 3-30 parts by weight of a first polymer and at least one of a second polymer and a third polymer. The first polymer is cyclic olefin polymer (COP), cyclic olefin copolymer (COC), metallocene based cyclic olefin copolymer (mCOC), fully hydrogenated conjugated diene-vinyl aromatic copolymer, or a combination thereof. The total weight of the second polymer and the third polymer is 70-97 parts by weight. The second polymer is polyolefin, olefin copolymer, or a combination thereof. The third polymer is conjugated diene-vinyl aromatic copolymer, partially hydrogenated conjugated diene-vinyl aromatic copolymer, or a combination thereof. The total weight of the first polymer and at least one of the second polymer and the third polymer is 100 parts by weight.