A flame-retardant rubber composition is provided which is excellent in flame retardancy and rubber properties and reduces environmental load. The flame-retardant rubber composition comprises an ethylene/α-olefin/non-conjugated diene copolymer, a hydrated metal oxide, a silane coupling agent, a plasticizer, and a cross-linking agent, wherein a carbon number of the α-olefin of the ethylene/α-olefin/non-conjugated diene copolymer is three and more, and 180 to 350 parts by mass of the hydrated metal oxide and 10 to 60 parts by mass of the plasticizer are included per 100 parts by mass of the ethylene/α-olefin/non-conjugated diene copolymer.

Provided is a rubber composition for sealing material which contains 100 parts by mass of a rubber component, 50 to 140 parts by mass of silica, 1 to 20 parts by mass of a silane coupling agent, and 15 to 35 parts by mass of carbon black. The rubber component is preferably an ethylene-propylene-diene rubber.

[Object] An object of the present invention is to provide a thermoplastic elastomer composition with excellent heat aging resistance and also excellent hardness and mechanical properties as well as excellent moldability.

[Solution] A thermoplastic elastomer composition (I) including a cross-linked product of an ethylene.α-olefin.nonconjugated polyene copolymer (A) with a phenolic resin cross-linking agent (E), and 360 to 460 parts by mass of a crystalline polyolefin (B), 70 to 140 parts by mass of a softener (C), and 2 to 6 parts by mass of a lubricant (D) (provided that the amount of the copolymer (A) is 100 parts by mass).

Described is a method for the production of a moisture curable composition whereby the reactive end groups of a reactive polymer are reacted with a cross-linking agent for forming a prepolymer, whereby the method is operated in batch mode and the production of the prepolymer occurs in a mixing vessel, characterized in that the reactive polymer and the cross-linking agent, as well as the additional ingredients necessary for the production step in the mixing vessel, are introduced into the closed mixing vessel and react without opening the mixing vessel, and the mixing takes place without opening the mixing vessel, and the product is removed from the mixing vessel without opening the mixing vessel.

The invention is a method for manufacturing an organic electronic device sealing body, adhesively integrating an organic electronic device with a sheet-like sealant made of a modified hydrocarbon-based soft resin having an alkoxysilyl group, the method comprising steps of: step [1]: laminating the organic electronic device and the sheet-like sealant to obtain a laminate; step [2]: putting the resulting laminate into a resin bag, degassing the bag, and then sealing the bag containing the laminate; and step [3]: placing the sealed bag under a pressure of 0.1 MPa or higher to adhesively integrate the laminate. One aspect of the invention provides a method for manufacturing an organic electronic device sealing body which allows industrially-advantageous sealing of the organic electronic device including organic functional elements such as an organic EL element and an organic semiconductor element.

A method for producing a sealing material is provided. The method includes the steps of: molding a resin for forming the sealing material to obtain a resin film; and processing a surface of the resin film to form a bonding surface having an arithmetic average roughness of 10 nm or more and 1,000 nm or less. There is also provided a method for producing a light-emitting device, comprising the steps of: bonding the bonding surface of the sealing material thus produced to a light-emitting element; and bonding a barrier member to a surface of the sealing material on a side opposite to the bonding surface.

A thermoset polymer product comprising 4,4-(((3-oxo-isoindoline-1,1-diyl)bis(4,1-arylene))bis(oxy))dibenzonitrile units of formula (2)

##STR00001##

wherein the units are derived from a 4,4-(((3-oxo-isoindoline-1,1-diyl)bis(4,1-arylene))bis(oxy))diphthalonitrile monomer of formula (1)

##STR00002##

wherein R is a C.sub.1-25 hydrocarbyl, preferably a C.sub.1-6 alkyl, a phenyl, or a phenyl substituted with up to five C.sub.1-6 alkyl groups, more preferably a C.sub.1-3 alkyl or a phenyl; each occurrence of R.sup.2 and R.sup.3 is independently a hydrogen, a halogen, or a C.sub.1-25 hydrocarbyl, preferably a hydrogen, a halogen, or a C.sub.1-6 alkyl, more preferably a hydrogen or a C.sub.1-3 alkyl; p and q are each independently 0 to 4, preferably 0 or 1, more preferably 0; and G is a residue of a cyano group, and is a C.sub.1-25 hydrocarbyl linking group having a valence of at least 2.

Described is a method for the production of a moisture curable composition whereby the reactive end groups of a reactive polymer are reacted with a cross-linking agent for forming a prepolymer, whereby the method is operated in batch mode and the production of the prepolymer occurs in a mixing vessel, characterized in that the reactive polymer and the cross-linking agent, as well as the additional ingredients necessary for the production step in the mixing vessel, are introduced into the closed mixing vessel and react without opening the mixing vessel, and the mixing takes place without opening the mixing vessel, and the product is removed from the mixing vessel without opening the mixing vessel.

The invention is a method for manufacturing an organic electronic device sealing body, adhesively integrating an organic electronic device with a sheet-like sealant made of a modified hydrocarbon-based soft resin having an alkoxysilyl group, the method comprising steps of: step [1]: laminating the organic electronic device and the sheet-like sealant to obtain a laminate; step [2]: putting the resulting laminate into a resin bag, degassing the bag, and then sealing the bag containing the laminate; and step [3]: placing the sealed bag under a pressure of 0.1 MPa or higher to adhesively integrate the laminate. One aspect of the invention provides a method for manufacturing an organic electronic device sealing body which allows industrially-advantageous sealing of the organic electronic device including organic functional elements such as an organic EL element and an organic semiconductor element.

Disclosed is a lip seal for water pump made of a rubber-like elastic material, fixed to a housing as a fixed side and in sliding contact with a shaft rotating relative to the housing; the lip seal having sliding surface with a surface roughness Ra (according to JIS B0601 corresponding to ISO 4287) of 1 to 30 m, being obtained by vulcanization-molding of a rubber composition comprising 100 parts by weight of the rubber-like elastic material, 1 to 150 parts by weight of a reinforcing filler, 5 to 90 parts by weight of a non-reinforcing filler having an average particle diameter of 1 m or more, 0.1 to 5 parts by weight of a coupling agent, 1 to 15 parts by weight of a co-crosslinking agent, and 0.5 to 10 parts by weight of an organic peroxide. The lip seal effects to prevent softening and volume swelling of the rubber-like elastic material and furthermore the generation of deposits in the rotating shaft, which are problematic for rotation torque and LLC resistance.