A cellulose acetate resin composition may include a cellulose acetate (A) having a total degree of acetyl substitution of 2.60 or less; a filler (B); and a plasticizer (C). The filler (B) may be selected from the group consisting of (b1) a predetermined inorganic compound, (b2) a predetermined metal salt, (b3) cellulose or hemicellulose, and (b4) wood flour. The plasticizer (C) may he selected from (c1) a glycerin ester-based plasticizer, (c2) an ether-based plasticizer, and (c3) a glycol ester-based plasticizer. A content of the component (A) may he from 4.5 to 90 mass %. A total content of the component (B) may be from 5 to 50 mass %. A total content of the component (C) may be from 5 to 35 mass %.

An aspect of the present invention relates to a resin composition, which contains a modified polyphenylene ether compound of which a terminal is modified with a substituent having a carbon-carbon unsaturated double bond and a free radical compound, in which the free radical compound has at least one free radical group selected from the group consisting of structures represented by Formulas (1), (2), (3) and (4) in a molecule.

An aspect of the present invention relates to a resin composition, which contains a modified polyphenylene ether compound of which a terminal is modified with a substituent having a carbon-carbon unsaturated double bond and a free radical compound, in which the free radical compound has at least one free radical group selected from the group consisting of structures represented by Formulas (1), (2), (3) and (4) in a molecule.

An aspect of the present invention relates to a resin composition, which contains a modified polyphenylene ether compound of which a terminal is modified with a substituent having a carbon-carbon unsaturated double bond and a free radical compound, in which the free radical compound has at least one free radical group selected from the group consisting of structures represented by Formulas (1), (2), (3) and (4) in a molecule.

An object of the present invention is to provide an organic EL display device which causes neither decrease in emission luminance nor pixel shrinkage and is excellent in long-term reliability. The present invention is directed to an organic EL display device including an insulating layer formed on a first electrode of the organic EL display device and constituted of a cured film obtained from a positive type photosensitive resin composition containing (A) an alkali-soluble resin, (B) an o-quinonediazide compound and (C) an organic solvent, wherein the mole ratio S/C obtained when a section of the cured film is measured is greater than or equal to 0.003 and less than or equal to 0.008.

An object of the present invention is to provide an organic EL display device which causes neither decrease in emission luminance nor pixel shrinkage and is excellent in long-term reliability. The present invention is directed to an organic EL display device including an insulating layer formed on a first electrode of the organic EL display device and constituted of a cured film obtained from a positive type photosensitive resin composition containing (A) an alkali-soluble resin, (B) an o-quinonediazide compound and (C) an organic solvent, wherein the mole ratio S/C obtained when a section of the cured film is measured is greater than or equal to 0.003 and less than or equal to 0.008.

The invention relates to a polymer composition, which contains or consists of a matrix of at least one thermoplastic polymer capable of crystallization and, incorporated therein, at least one azine dye and at least mono-, di-, tri-, and/or tetravalent metal salt. Said polymer composition is characterized in that the crystallization point thereof is considerably reduced in comparison with polymer compositions having no additives or a composition containing only an azine dye or a metal salt as an additive. The invention further relates to a corresponding additive composition for the crystallization and/or for the lowering of the crystallization point of thermoplastic polymers or polymer compositions capable of crystallization.

The present invention is directed to a vulcanizable rubber composition comprising, based on parts by weight per 100 parts by weight elastomer (phr): 100 phr of at least one diene-based elastomer; from 1 to 80 phr of carbon black; from 40 to 120 phr of silica; from 1 to 20 parts by weight of a sulfur-containing organosilane per 100 parts by weight of the silica; from 0.1 to 10 phr of a tetrazine compound of formula 1

##STR00001##

where X.sup.1 and X.sup.2 each represent a heterocyclic group; and from 0.5 to 10 phr of a zinc complex compound of formula 2

##STR00002##

where R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen atoms, alkyl groups, alkylene groups, hydroxyl-substituted alkyl or alkylene groups, amine-substituted alkyl or alkylene groups, and thiol-substituted alkyl or alkylene groups.

The present invention is directed to a vulcanizable rubber composition comprising, based on parts by weight per 100 parts by weight elastomer (phr): 100 phr of at least one diene-based elastomer; from 1 to 80 phr of carbon black; from 40 to 120 phr of silica; from 1 to 20 parts by weight of a sulfur-containing organosilane per 100 parts by weight of the silica; from 0.1 to 10 phr of a tetrazine compound of formula 1

##STR00001##

where X.sup.1 and X.sup.2 each represent a heterocyclic group; and from 0.5 to 10 phr of a zinc complex compound of formula 2

##STR00002##

where R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen atoms, alkyl groups, alkylene groups, hydroxyl-substituted alkyl or alkylene groups, amine-substituted alkyl or alkylene groups, and thiol-substituted alkyl or alkylene groups.

Crosslinking fluids and methods configured for delaying gel crosslinking of the crosslinking fluid are provided. The crosslinking fluids and methods comprise mixtures of at least one crosslinking polymer, at least one crosslinker configured for crosslinking the at least one crosslinking polymer, at least one crosslink delay trigger configured for initiating crosslinking at a predetermined pH value and comprising at least one low reactivity magnesium oxide, and polar protic solvent. The at least one low reactivity magnesium oxide is produced by calcination of magnesium carbonate ore or magnesium hydroxide ore at a calcining temperature of at least 1,000° C.