Abstract: An electroconductive composition including (A) silver oxide; and (B) a secondary aliphatic acid silver salt produced by using a secondary aliphatic acid having a boiling point of not higher than 200° C. will be capable of forming an excellent electroconductive film in a short time on a substrate having a low heat resistance. An electroconductive composition including (A) silver oxide; (B?) a secondary aliphatic acid silver salt whose secondary aliphatic acid contains up to 7 carbon atoms; (C1) a aliphatic acid containing at least 8 carbon atoms and/or (C2) a aliphatic acid silver salt whose aliphatic acid contains at least 8 carbon atoms; and (D) a solvent and/or a plasticizer has an excellent thixotropy and can be formed into an electroconductive film having a low electric resistance even after having been heated for a short time.

Abstract: An electroconductive composition including (A) silver oxide; and (B) a secondary aliphatic acid silver salt produced by using a secondary aliphatic acid having a boiling point of not higher than 200° C. will be capable of forming an excellent electroconductive film in a short time on a substrate having a low heat resistance. An electroconductive composition including (A) silver oxide; (B?) a secondary aliphatic acid silver salt whose secondary aliphatic acid contains up to 7 carbon atoms; (C1) a aliphatic acid containing at least 8 carbon atoms and/or (C2) a aliphatic acid silver salt whose aliphatic acid contains at least 8 carbon atoms; and (D) a solvent and/or a plasticizer has an excellent thixotropy and can be formed into an electroconductive film having a low electric resistance even after having been heated for a short time.

Abstract: A golf club set consisting of a plurality of golf clubs having a series of continuous club numbers, characterized in that an angle of centroid defined as an angle described between an extension line of a face of a club head and a perpendicular passing through a center axis of a club shaft when the club shaft of each of the golf clubs is placed on a horizontal table with the club head thereof being suspended freely, is smaller for the golf clubs having higher club numbers and progressively larger in the order of decreasing club numbers among a plurality of the golf clubs.

Abstract: A golf club head having a main body made of synthetic resin as a main material and a sole plate of metal material molded integrally with the club head main body. The sole plate has an its bottom surface at least one projection formed independently of the sole plate and fixed thereto so that it extends in a back and forth direction relative to the direction of swing of the club.

Abstract: A wood type golf club head comprising a head body consisting mainly of a synthetic resin, and a metallic sole plate bonded to the lower surface of the head body. The sole plate has on its surface to be bonded to the head body various members formed integrally therewith which include a hosel on the heel side, weights on the toe side and rear side, and a beam connecting the weights and the hosel.