A tire dressing composition is provided that includes petroleum distillates in which a polybutene or isobutene/butene copolymer is dissolved to form a clear solution. In the water-based approach, the polybutene or isobutene/butene copolymer was emulsified by a surfactant. A wetting agent is also present in the composition to render the composition self-levelling. The sprayable tire dressing composition provides a high gloss and good wettability to a tire surface that develops a uniform coating on the treated tire surface.

A tire dressing composition is provided that includes petroleum distillates in which a polybutene or isobutene/butene copolymer is dissolved to form a clear solution. In the water-based approach, the polybutene or isobutene/butene copolymer was emulsified by a surfactant. A wetting agent is also present in the composition to render the composition self-levelling. The sprayable tire dressing composition provides a high gloss and good wettability to a tire surface that develops a uniform coating on the treated tire surface.

A peroxide-curable ethylene copolymer composition comprising (A) a crosslinkable ethylene/alpha-olefin copolymer, (B) an effective amount of triallyl phosphate (TAP), (C) an organic peroxide, and, optionally, (D) a supplemental polymer; wherein the (A) crosslinkable ethylene/alpha-olefin copolymer is made by copolymerizing ethylene and an olefin-functional comonomer in the presence of a molecular catalyst useful therefor. Also provided are a cured product made from the composition, methods of making and using same, and articles containing same.

A peroxide-curable ethylene copolymer composition comprising (A) a crosslinkable ethylene/alpha-olefin copolymer, (B) an effective amount of triallyl phosphate (TAP), (C) an organic peroxide, and, optionally, (D) a supplemental polymer; wherein the (A) crosslinkable ethylene/alpha-olefin copolymer is made by copolymerizing ethylene and an olefin-functional comonomer in the presence of a molecular catalyst useful therefor. Also provided are a cured product made from the composition, methods of making and using same, and articles containing same.

To provide a 4-methyl-1-pentene polymer being excellent in storage stability when dissolved in a solvent and solubility, and being excellent in at least one of heat resistance, and a coating appearance when a coating film is stretched, for example, when such a film is bended or used in a flexible application.

A 4-methyl-1-pentene polymer (A) being a copolymer of 4-methyl-1-pentene and at least one selected from linear -olefins having 6 to 20 carbon atoms, the 4-methyl-1-pentene polymer (A) satisfying the following requirements (I) and (II): (I) an endotherm end temperature (TmE) in a melting (endothermic) curve measured by DSC is 230 C. or lower; and (II) an exotherm start temperature (TcS) in a crystallization (exothermic) curve measured by DSC is 210 C. or lower.

To provide a 4-methyl-1-pentene polymer being excellent in storage stability when dissolved in a solvent and solubility, and being excellent in at least one of heat resistance, and a coating appearance when a coating film is stretched, for example, when such a film is bended or used in a flexible application.

A 4-methyl-1-pentene polymer (A) being a copolymer of 4-methyl-1-pentene and at least one selected from linear -olefins having 6 to 20 carbon atoms, the 4-methyl-1-pentene polymer (A) satisfying the following requirements (I) and (II): (I) an endotherm end temperature (TmE) in a melting (endothermic) curve measured by DSC is 230 C. or lower; and (II) an exotherm start temperature (TcS) in a crystallization (exothermic) curve measured by DSC is 210 C. or lower.

A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The cyclic olefin polymer (A) may comprise a cyclic olefin copolymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.

A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The cyclic olefin polymer (A) may comprise a cyclic olefin copolymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.

A resin composition for sealing an electronic device and other things being capable of suppressing the permeation of water vapor is provided. The present invention includes a polybutadiene polymer represented by chemical formula (1) and having a (meth)acryloyl group at a terminal end; and a photopolymerization initiator, and does not include a thermoplastic resin having a mass-average molecular weight of 50,000 or more: ##STR00001##
wherein R.sup.1 and R.sup.2 each represent a hydroxyl group or H.sub.2C?C(R.sup.7)COO; R.sup.3 and R.sup.4 each represent a C1-C16 substituted or unsubstituted divalent organic group; R.sup.5, R.sup.6 and R.sup.7 each represent a hydrogen atom or a C1-C10 alkyl group, and at least one organic group represented by chemical formula (2) is included within chemical formula (1); l and m each represent 0 or 1; n represents an integer of 15-150; and x:y=0 to 100:100 to 0; R.sup.1 and R.sup.2 are never both a hydroxyl group. ##STR00002##

A resin composition for sealing an electronic device and other things being capable of suppressing the permeation of water vapor is provided. The present invention includes a polybutadiene polymer represented by chemical formula (1) and having a (meth)acryloyl group at a terminal end; and a photopolymerization initiator, and does not include a thermoplastic resin having a mass-average molecular weight of 50,000 or more: ##STR00001##
wherein R.sup.1 and R.sup.2 each represent a hydroxyl group or H.sub.2C?C(R.sup.7)COO; R.sup.3 and R.sup.4 each represent a C1-C16 substituted or unsubstituted divalent organic group; R.sup.5, R.sup.6 and R.sup.7 each represent a hydrogen atom or a C1-C10 alkyl group, and at least one organic group represented by chemical formula (2) is included within chemical formula (1); l and m each represent 0 or 1; n represents an integer of 15-150; and x:y=0 to 100:100 to 0; R.sup.1 and R.sup.2 are never both a hydroxyl group. ##STR00002##