Abstract: A bicycle derailleur comprises a unit mounting portion, a battery mounting portion, a wireless communicator, an electrical connector, and a battery. The wireless communicator is detachably disposed at the unit mounting portion. The electrical connector receiving portion is configured to receive a connector. The battery is configured to be disposed at the battery mounting portion.

Abstract: A bicycle derailleur comprises a unit mounting portion, a wireless communicator, an electrical connector receiving portion, and a power supply portion. The wireless communicator is disposed at the unit mounting portion. The electrical connector receiving portion is configured to receive a connector. The power supply portion is configured to receive electricity from a battery disposed at a location apart from the bicycle derailleur.

Abstract: A bicycle derailleur comprises a unit mounting portion, a wireless communicator, an electrical connector receiving portion, and a power supply portion. The wireless communicator is disposed at the unit mounting portion. The electrical connector receiving portion is configured to receive a connector. The power supply portion is configured to receive electricity from a battery disposed at a location apart from the bicycle derailleur.

Abstract: The present invention provides a flexible polyurethane foam having good resistance to wet heat aging and resistance to ozone deterioration and a speaker edge having an excellent waterproofness comprising such a flexible polyurethane foam. As a polyol, a polyol component obtained by mixing a polyester polyol having an excellent compatibility with polyether polyol such as adipate of a long-chain alkylene glycol having at least 5 carbon atoms with a foaming agent, a catalyst, a foam stabilizer, etc. is reacted with a polyisocyanate to obtain a flexible polyurethane foam having good resistance to wet heat aging and resistance to ozone deterioration. Further, the incorporation of a specific aromatic secondary amine compound, a monofunctionally-terminated compound and an ultraviolet absorbent in the foam composition makes it possible to obtain a flexible foam having better resistance to ozone deterioration and weather resistance.

Abstract: The present invention provides a flexible polyurethane foam having good resistance to wet heat aging and resistance to ozone deterioration and a speaker edge having an excellent waterproofness comprising such a flexible polyurethane foam. As a polyol, a polyol component obtained by mixing a polyester polyol having an excellent compatibility with polyether polyol such as adipate of a long-chain alkylene glycol having at least 5 carbon atoms with a foaming agent, a catalyst, a foam stabilizer, etc. is reacted with a polyisocyanate to obtain a flexible polyurethane foam having good resistance to wet heat aging and resistance to ozone deterioration. Further, the incorporation of a specific aromatic secondary amine compound, a monofunctionally-terminated compound and an ultraviolet absorbent in the foam composition makes it possible to obtain a flexible foam having better resistance to ozone deterioration and weather resistance.

Abstract: The present invention provides a waterproof plastic foam such as waterproof polyurethane foam which can keep the inherent properties of the foam and exhibit low gas permeability and water absorption, excellent water-sealing properties and hence a stable waterproofness.

Abstract: Disclosed are a porous molded product comprising a foam having a three-dimensional cell-membrane-free network skeletal structure, which has been extended to make long the shape of the mesh pores thereof in a given direction, and having deposited onto the skeleton thereof a cured resin without clogging the mesh pores and a process for preparing said porous molded product. The porous molded product according to this invention can be used as a filter material or used when a porous ceramic structural body is sinter molded.