A nozzle cap (1) is provided, which is formed from a rubber composition containing a rubber component including a diene rubber and a non-diene rubber, wherein the diene rubber is present in a proportion of 20 to 70 parts by mass based on 100 parts by mass of the total of the rubbers in the rubber composition. The nozzle cap (1) has a moderate gas transmission property and, hence, can be quickly sterilized by EOG sterilization and steam sterilization, quickly removed of residues by deaeration, and quickly dried in a shorter period after the steam sterilization. In addition, the nozzle cap (1) is less liable to be loosened due to increase in internal pressure and compression set and detached from the nozzle, and has a reduced leaching substance amount before and after the sterilization.

A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative, zinc oxide, and a eutectic solvent; and (ii) heating the vulcanizable composition to thereby effect vulcanization.

A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative, zinc oxide, and a eutectic solvent; and (ii) heating the vulcanizable composition to thereby effect vulcanization.

Compositions and articles comprising a stress and crack resistant component comprising a thermoplastic component and an elongation component. In some examples, the invention is directed to a stress and crack resistant component comprising a thermoplastic component, an elongation modifier component and an elongation temperer; in preferred examples the thermoplastic component comprises a polyethylene terephthalate glycol-modified (PETG) copolyester, the elongation modifier component comprises a halogenated polyolefin having a heat of fusion of 1 J/g or less, and the elongation temperer comprises a poly(styrene acrylonitrile) (SAN).

In preferred examples the stress-resistant component is comprised as an coating component covering at least one surface of a substrate, such as one comprising a medium density fiberboard (MDF), a particle board, an oriented strand board, fiberglass, a natural wood, a composite wood product, and a synthetic substrate. The stress-resistant component is preferably, though not invariably, produced by extrusion. The invention is also directed to articles, such as extrusion profiles, comprising the stress-resistant component, and methods of making such articles.

Compositions and articles comprising a stress and crack resistant component comprising a thermoplastic component and an elongation component. In some examples, the invention is directed to a stress and crack resistant component comprising a thermoplastic component, an elongation modifier component and an elongation temperer; in preferred examples the thermoplastic component comprises a polyethylene terephthalate glycol-modified (PETG) copolyester, the elongation modifier component comprises a halogenated polyolefin having a heat of fusion of 1 J/g or less, and the elongation temperer comprises a poly(styrene acrylonitrile) (SAN).

In preferred examples the stress-resistant component is comprised as an coating component covering at least one surface of a substrate, such as one comprising a medium density fiberboard (MDF), a particle board, an oriented strand board, fiberglass, a natural wood, a composite wood product, and a synthetic substrate. The stress-resistant component is preferably, though not invariably, produced by extrusion. The invention is also directed to articles, such as extrusion profiles, comprising the stress-resistant component, and methods of making such articles.

A production method comprising: (a) a step of melt-mixing a base resin containing a chlorinated polyethylene; an organic peroxide, an inorganic filler, and a silane coupling agent, in specific ratios, at a temperature equal to or higher than a decomposition temperature of the organic peroxide, to prepare a silane master batch; (b) a step of mixing the silane master batch obtained in the step (a) with a silanol condensation catalyst, and then forming the resultant mixture; and conducting at least one of the melt-mixing in the step (a) and the mixing in the step (b) is performed in the coexistence of a chloroprene rubber or a polyvinyl chloride; a heat-resistant chlorine-containing crosslinked resin formed body produced by the method, a silane master batch, a mixture and formed body thereof, and a heat-resistant product.

A production method comprising: (a) a step of melt-mixing a base resin containing a chlorinated polyethylene; an organic peroxide, an inorganic filler, and a silane coupling agent, in specific ratios, at a temperature equal to or higher than a decomposition temperature of the organic peroxide, to prepare a silane master batch; (b) a step of mixing the silane master batch obtained in the step (a) with a silanol condensation catalyst, and then forming the resultant mixture; and conducting at least one of the melt-mixing in the step (a) and the mixing in the step (b) is performed in the coexistence of a chloroprene rubber or a polyvinyl chloride; a heat-resistant chlorine-containing crosslinked resin formed body produced by the method, a silane master batch, a mixture and formed body thereof, and a heat-resistant product.

A production method comprising: (a) a step of melt-mixing a base resin containing a chlorinated polyethylene; an organic peroxide, an inorganic filler, and a silane coupling agent, in specific ratios, at a temperature equal to or higher than a decomposition temperature of the organic peroxide, to prepare a silane master batch; (b) a step of mixing the silane master batch obtained in the step (a) with a silanol condensation catalyst, and then forming the resultant mixture; and conducting at least one of the melt-mixing in the step (a) and the mixing in the step (b) is performed in the coexistence of a chloroprene rubber or a polyvinyl chloride; a heat-resistant chlorine-containing crosslinked resin formed body produced by the method, a silane master batch, a mixture and formed body thereof, and a heat-resistant product.

Embodiments of the invention provide an electrically conductive resin composition which enables the formation of a film that has high electrical conductivity and excellent tensile elongation, bending resistance and flexibility, and is suitable for an electrode member for a storage battery. At least one embodiment provides a resin composition including (A) 100 parts by mass of a thermoplastic resin, (B) 1 to 60 parts by mass of carbon nanotubes, and (C) 1 to 60 parts by mass of acethylene black, wherein the thermoplastic resin (A) includes (A1) 30 to 80% by mass of a chlorinated polyethylene having a chlorine content of 20 to 45% by mass and (A2) 70 to 20% by mass of a polyethylene that is different from the component (A1). According to another embodiment, the thermoplastic resin (A) is (A3) a polyethylene that satisfies the following properties (p) and (q): (p) the peak top melting point on the highest temperature side in a DSC melting curve is 120° C. or higher; and (q) the ratio of melting enthalpy in a temperature range of 110° C. or lower relative to the total melting enthalpy in the DSC melting curve is 50 to 80%.

Provided is a composition for a heat-shrinkable tube, comprising: a base resin; and a flame retardant, wherein the base resin comprises chlorinated polyolefin resin and polyolefin elastomer, wherein the chlorinated polyolefin resin comprises chlorine in an amount of 30 to 40% by weight based on the total weight thereof, and the polyolefin elastomer has a melting point of 95 to 120° C., and an amount of the chlorinated polyolefin resin is 40 to 60 parts by weight and an amount of the polyolefin elastomer is 20 to 40 parts by weight, based on 100 parts by weight of the base resin.