Abstract: A polyalkylene terephthalate-series resin (e.g., polyethylene terephthalate-series resin, polybutylene terephthalate-series resin) is improved in flame retardancy by using a flame retardant containing a phosphazene compound and a phenolic resin. The phosphazene compound is a compound shown by the following formulae (1) and/ or (2), and/or a compound being the above compound crosslinked with a phenylene group or a crosslinking group shown by the following formula (3a). The proportion of the phosphazene compound to the phenolic resin is the former/the latter=5/95 to 95/5 (weight ratio). By means of the above flame retardant, a polyalkylene terephthalate-series resin can be highly improved in flame retardancy without deteriorating the properties. Further, by adding the other flame retardant (e.g., a nitrogen-containing flame retardant, a phosphate-series flame retardant), and a carbonizable resin, the flame retardancy can be enhanced.

Abstract: A heat-resistant composition contains solvent-soluble polyimide resin (A) and a phosphazene compound (B) in relation to a polyimide resin composition having solubility in a low-boiling solvent, heat resistance, flame resistance, adhesiveness and mechanical properties.

Abstract: A semiconductor device has a semiconductor substrate (1) having a plurality of individual semiconductor device areas (10-1, 10-2), and a scribe area (20) positioned between the individual semiconductor device areas (10-1, 10-2) adjacent to each other so as to extend along peripheral edges of the adjacent individual semiconductor device areas (10-1, 10-2); an interlayer insulating film (2a) formed on the semiconductor substrate (1); a passivation film (6a) formed on the interlayer insulating film (2a); a protection film (7, 7a-1, 7a-2) formed on the passivation film (6a).

Abstract: A semiconductor device has a semiconductor substrate (1) having a plurality of individual semiconductor device areas (10-1,10-2), and a scribe area (20) positioned between the individual semiconductor device areas (10-1,10-2) adjacent to each other so as to extend along peripheral edges of the adjacent individual semiconductor device areas (10-1,10-2); an interlayer insulating film (2a) formed on the semiconductor substrate (1); a passivation film (6a) formed on the interlayer insulating film (2a); a protection film (7,7a-1,7a-2) formed on the passivation film (6a).

Abstract: The present invention provides a lithium secondary battery which comprises a layer of vanadium pentoxide serving as the positive electrode active substance, a substance capable of occluding and releasing lithium ions and serving as the negative electrode active substance, and a polymer represented by the following formula (I) and having a lithium salt dissolved therein to serve as the electrolyte, wherein said formula is ##STR1## and wherein m is the average number of repeating ethyleneoxy units and is a real number of about 5 to about 25, and n is the average number of repetitions and is a real number in the range of 3.ltoreq.n.ltoreq.200000.The lithium secondary battery of the invention comprises two electrode active substances which have a high energy density and an electrolyte which is flame-retardant, nonflowable and safe, and is capable of retaining its characteristics even at low ambient temperatures of up to the ice point.

Abstract: A solid-state battery having a solid electrolyte represented by [A].sub.u.({[=N(Z).sub.2 ].(MX).sub.v }.sub.w), a positive electrode, and a negative electrode. A is a single ionic polymer of at least one of an oligoethylene oxypolyphosphazene compound having a sulfone group and an oligoalkylene oxpolyphosphazene compound having a fluorolakylsulfone group. The respective oxypolyphosphazenes have the structure of one of formulas (I) to (IV): ##STR1## R is at least one of methyl, ethyl and propyl. R' is hydrogen or methyl. h, k, h' and k' are each the average number of repeating ethyleneoxy unite or alkyleneoxy units and are each a real number from 0 to 20. l, n, l' and n' are each an integer of 0 or greater in the range of 3.ltoreq.l+n+l'+n'.ltoreq.200,000. Z is a group represented by Y--(OCH.sub.2 CH.sub.2).sub.y --O--. Y is at least one of methyl, ethyl and propyl. y is a real number from 1 to 30.

Abstract: An all solidstate secondary battery comprising an oxide of layer structure represented by the formula(V.sub.2 O.sub.5)x *(A)y *zH.sub.2 Oserving as a cathode active material, lithim or a lithium alloy serving as a negative electrode active substance, and an oligoalkyleneoxypolyphosphazene polymer serving as an electrolyte, contains no solvent, is excellent in charge-discharge characteristics and usable with safety over a wide temperature range of from low to high temperatures.

Abstract: The present invention provides an all solid-state lithium secondary battery comprising an oxide of layer structure serving as a positive electrode active substance and represented by the formula(V.sub.2 O.sub.5)x.cndot.(A)y.cndot.zH.sub.2 Owherein x+y=1, y=0.03 to 0.5, z=0.1 to 1.6, A is at least one oxide seleced from among GeO.sub.2, SiO.sub.2, B.sub.2 O.sub.3, MoO.sub.3, WO.sub.3, Nb.sub.2 O.sub.5, TeO.sub.2, Bi.sub.2 O.sub.3, Cr.sub.3 O.sub.8 and ZrO.sub.2, lithium or a lithium alloy serving as a negative electrode active substance, and a compound serving as an electrolyte and represented by the formula{[N=P(E).sub.2 ].cndot.(LiX)a}bwhereini) [N=P(E).sub.

Abstract: Polyphosphazenes which can be formed into a membrane having a high affinity for a separated substance and an excellent flexibility and even a thin membrane having a high strength and an excellent permeability, a process for their preparation, and their use. The phosphazenes contain allyl groups and have the structure wherein segments represented by the formulae (I), (II) and (III) are arbitrarily arranged. In said formulae, R represents a single group or a mixture of methyl, ethyl, and propyl groups, h and k each represent an average repeating number of ethyleneoxy units, with 0.ltoreq.h.ltoreq.15 and 0.ltoreq.k.ltoreq.15, l, m, and n each represent 0 or a positive integer satisfying the condition of 3.ltoreq.l+m+n.ltoreq.200000 and n.noteq.0.

Abstract: A fluoroalkoxy cyclic phosphonitrile ester represented by the formula (1)[H(CF.sub.2 CF.sub.2)mCH.sub.2 O].sub.2 n-l[CF.sub.3 CF.sub.2 CH.sub.2 O]lPnNn (1)wherein (CF.sub.2 CF.sub.2)m is a single segment of the unit (CF.sub.2 CF.sub.2) multiplied by an integer or indicates conjoint presence of segments having different chain lengths and each comprising the unit (CF.sub.2 CF.sub.2) multiplied by an integer, m is 2 in the case of the single segment or, in the case of the presence of segments of different chain lengths, represents the average of the chain lengths, means the average number of repeating units (CF.sub.2 CF.sub.2) and is in the range of 1.3.ltoreq.m.ltoreq.2.8, l is in the range of 2n-1.gtoreq.l.gtoreq.1, and n is the number of repeating PN units of the phosphonitrile cyclic skeleton, or represents the average number of repeating PN units and is a real number in the range of 3.ltoreq.n.ltoreq.4.3 when rings of different numbers of repeating units are conjointly present.