Abstract:
L'invention concerne une composition à base d'au moins un polymère insaturé et d'un composé polysulfuré de formule générale (I) dans laquelle : A et B forment ensemble une liaison covalente ou alors A représente un atome d'hydrogène et B représente un groupement -S-R 1 - (S) m -R 2 - SH ou un atome d'hydrogène; m est un nombre compris dans un domaine allant de 1 à 3; - n est un nombre supérieur ou égal à 3; - p est un nombre supérieur ou égal à 1; R 1 et R 2 , représentent, indépendamment l'un de l'autre, des groupements identiques ou différents hydrocarbonés divalents comportant de 1 à 18 atomes de carbone, éventuellement interrompus par un hétéroatome. L'invention concerne également un procédé de fabrication de cette composition ainsi que l'utilisation d'un composé polysulfuré de formule générale (I) comme agent de réticulation de polymères insaturés.
Abstract:
A coating composition that exhibits high cure speed is described. The coating composition includes one or more monomers, one or more oligomers, and a photoinitiator. The coating composition further includes a photosensitizer that acts in cooperation with a photoinitiator to increase cure speed.
Abstract:
A poly(arylene sulfide) polymer composition comprising a neat poly(arylene sulfide) polymer and a cyclic oligomer nucleating agent, wherein the cyclic oligomer nucleating agent is contacted with the neat poly(arylene sulfide) polymer in an amount of from about 0.25 wt.% to about 1 wt.% cyclic oligomer nucleating agent, based on the total weight of the poly(arylene sulfide) polymer composition, and wherein the poly(arylene sulfide) polymer composition is characterized by a melt crystallization temperature (Tmc) that is greater by at least about 5 °C than a Tmc of the neat poly(arylene sulfide) polymer.
Abstract:
A thermoplastic polymer composition comprises a thermoplastic polymer and a compatibilizing agent comprising a fulvene moiety or a fulvene-derived moiety. A heterophasic polymer composition comprises a propylene polymer phase, an ethylene polymer phase, and a compatibilizing agent comprising a fulvene moiety or a fulvene-derived moiety.
Abstract:
Stabilized composition comprising: -at least one homopolymer or copolymer of ethylene; -at least one tocotrienol or at least a mixture of tocotrienol isomers.
Abstract:
A hybrid pigment composition and method of producing the hybrid pigment composition is provided. The hybrid pigment composition includes a purified dye, purified pigment, purified dye intermediate, or purified pigment intermediate and a fibrous clay. The fibrous clay is palygorskite, sepiolite, or a combination thereof. The hybrid pigment composition is produced by reacting the purified dye, purified pigment, purified dye intermediate, or purified pigment intermediate with the fibrous clay.