Abstract: An electrically conductive complex obtained by reacting a thia-and/or selenafulvalenyl group-containing compound as an electron donor with an electron acceptor, and having an electron donar/electron acceptor molar ratio of 1/0.1 to 1/10, the thia-and/or selenafulvalenyl group-containing compound having the formula (I), ##STR1## wherein each of X.sub.1, X.sub.2, X.sub.3, X.sub.4, X'.sub.1, X'.sub.2, X'.sub.3 and X'.sub.4 is independently S or Se, Y is an electron donating or electron accepting group having a size which is not so large as to prevent molecular overlapping, m is an integer of 0 to 4, each of Z.sub.1, Z.sub.2, Z'.sub.1 and Z'.sub.2 is independently a hydrogen atom, C.sub.n H.sub.2n+1 in which n is an integer of 1 to 5, or alternatively, a combination of Z.sub.1 with Z.sub.2 or Z'.sub.2 and is C.sub.n H.sub.2n in which n is an integer of 1 to 5, or X(C.sub.n H.sub.2n).sub.n' X in which X is S or Se and n' is an integer of 1 to 3, and each of R.sub.1, R.sub.2, R.sub.3, R'.sub.1, R'.sub.2 and R'.sub.

Abstract: A multi-layered polymer having (a) a core layer of an aromatic vinyl polymer, (b) an intermediate layer of a butadienic rubbery polymer and (c) an outer layer of an aromatic vinyl glassy polymer, the amount of the components (a), (b) and (c) being 12 to 42 weight %, 48 to 78 weight % and 10 to 40 weight %, respectively, provides a thermoplastic resin composition excellent not only in impact strength, especially in impact strength at low temperatures, but also in, in the case of containing a coloring agent, color-stability including less mottlings, and giving a molded article improved in preventing occurrence of delamination around the gate region.

Abstract: A polycarbonate resin composition comprising (a) an aromatic polycarbonate resin, (b) a rubber-polyester block copolymer comprising an aliphatic diene-based rubber having at one or both ends thereof a polyester structural unit formed by ring-opening polymerization of an aliphatic lactone with the aliphatic diene-based rubber, and (c) an inorganic filler.

Abstract: A fiber-reinforced resin composition having surface smoothness, which comprises(1) 100 parts by weight of a thermoplastic resin composition comprising an aromatic polycarbonate resin and a thermoplastic polyester resin in a weight ratio of from 10/90 to 90/10,(2) from 50 to 100 parts by weight of glass fiber sheet chips having an almost rectangular shape, each side having a length of from 1 to 30 mm, the glass fiber sheet chips being obtained by forming E-glass fibers having an average fiber diameter of 2 .mu.m or less which have been surface-treated with a silane coupling agent, into a sheet by a paper making process and then cutting the resulting sheet, and(3) from 0 to 40 parts by weight of a thermoplastic elastomeric polymer,and an exterior automotive part showing excellent image clarity, obtained by shaping the fiber-reinforced resin composition.

Abstract: A thia- and/or selenafulvalenyl group-containing compound of the formula (I), ##STR1## wherein each of X.sub.1, X.sub.2, X.sub.3, X.sub.4, X'.sub.1, X'.sub.2, X'.sub.3 and X'.sub.4 is independently S or Se, Y is an electron donating or electron accepting group having a size which is not so large as to prevent molecular overlapping, m is an integer of 0 to 4, each of Z.sub.1, Z.sub.2, Z'.sub.1 and Z'.sub.2 is independently a hydrogen atom, C.sub.n H.sub.2n+1 in which n is an integer of 1 to 5, or alternatively, a combination of Z.sub.1 with Z.sub.2 and Z'.sub.1 with Z'.sub.2 is C.sub.n H.sub.2n in which n is an integer of 1 to 5, or X(C.sub.n H.sub.2n).sub.n', X in which X is S or Se and n' is an integer of 1 to 3, and each of R.sub.1, R.sub.2, R.sub.3, R'.sub.1, R'.sub.2 and R'.sub.3 is independently a hydrogen atom or C.sub.n H.sub.2n+1 in which n is an integer of 1 to 5. The compound has an electron donating nature and can be used to make electrically conductive complexes.

Abstract: A polycarbonate resin composition for radiation sterilization, comprising an aromatic polycarbonate resin having structural units derived from a halogenated bisphenol, and a polyalkylene compound selected from poly(alkylene glycol), its ether, silyl ether or ester. Molded articles produced from the composition do not substantially undergo yellowing when exposed to radiation in air or under a substantially oxygen-free atmosphere, and can be advantageously employed in medical appliances.

Abstract: Disclosed herein is a percussive tool having a piston and a ram slidably mounted within a cylinder which is axially displaceable. An air chamber is defined in front of the ram, and the cylinder has exhaust openings formed therein. With the cylinder in its retracted position, the exhaust openings communicate with the front air chamber so that the air cushion therein is vented during forward movement of the ram, and with the cylinder in its advanced position, the exhaust openings are closed to seal the air chamber so that the ram is limited in its rearward movements.

Abstract: A laminated material comprising an aluminum or polypropylene substrate and a resin composition layer coated on the substrate is described, wherein the composition layer comprises from 60 to 99.9% by weight of an ethylene-based copolymer and from 40 to 0.1% by weight of polypropylene modified with unsaturated carboxylic acid or its anhydride, and the composition layer is coated on the substrate by an extrusion lamination method. This laminated material has excellent physical and chemical properties, and is very useful as a wrapping material, particularly for use in automatic wrapping of foods, drinks, tools, and so forth.

Abstract: A process for stabilizing trioxane, characterized by adding thereto a specific trivalent organic phosphorus compound is disclosed.

Abstract: A process for preparing oxymethylene polymers which comprises polymerizing trioxane or both trioxane and a specific cyclic ether in the presence of a catalytic amount of a boron fluoride-type catalyst, stopping the polymerization, and then subjecting the resulting polymer to a terminal stabilizing treatment, wherein the polymerization is stopped by adding a specific trivalent organic phosphorus compound and then the terminal stabilizing treatment is performed without removing the catalyst from the polymer.