摘要:
A crosslinked block copolymer concentrate includes at least 80 weight percent of a crosslinked block copolymer of an alkenyl aromatic monomer, such as styrene, and a conjugated diene, such as butadiene. The crosslinked block copolymer includes 50 to about 90 weight percent of repeating units derived from the alkenyl aromatic monomer. The concentrate may be blended with a poly(arylene ether) to form a composition with high ductility. Blends of the concentrate and poly(arylene ether) may also be formulated to be translucent or transparent.
摘要:
A composition includes a poly(arylene ether) and a radial block copolymer having particular properties. The composition exhibits an improved balance of ductility and optical clarity, making it useful in packaging applications, among others.
摘要:
A poly(arylene ether) composition exhibiting an improved balance of stiffness, ductility, and heat resistance is prepared by melt-kneading a poly(arylene ether), an acid-functionalized block copolymer, and a polyamine compound.
摘要:
A poly(arylene ether) composition exhibiting an improved balance of stiffness, ductility, and heat resistance is prepared by melt-kneading a poly(arylene ether), an acid-functionalized block copolymer, and an aminosilane compound.
摘要:
A flame retardant additive composition comprising a phosphoric acid salt selected from the group consisting of melamine phosphate, melamine pyrophosphate, melamine orthophosphate, ammonium phosphate, ammonium phosphate amide, phosphoric acid amide, melamine polyphosphate, ammonium polyphosphate, ammonium polyphosphate amide, polyphosphoric acid amide and combinations of two or more of the foregoing; a metal hydroxide; and an organic phosphate. The flame retardant additive is useful in a wide range of thermoplastic compositions.
摘要:
A thermoplastic composition includes a poly(arylene ether), a hydrogenated block copolymer, a pre-blend of a thermoplastic vulcanizate and a hydrogenated block copolymer, an ethylene/alpha-olefin copolymer, and a hydrocarbon resin. Pre-blending the thermoplastic vulcanizate with a portion of the hydrogenated block copolymer was found to markedly improve the flame resistance and physical properties of the composition compared to those of compositions in which the thermoplastic vulcanizate and hydrogenated block copolymer are separately added to the final compounding process. Addition of hydrocarbon resin further improves the balance of flame retardancy and physical properties.
摘要:
A flexible thermoplastic composition comprises poly(arylene ether); a plasticizer having an affinity for polyolefin; a polyolefin and a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, wherein the polyolefin comprises (i) an ethylene/C7-C20 alpha olefin copolymer having an alpha olefin content greater than or equal to about 10%, (ii) a thermoplastic vulcanizate (iii) a combination of linear low density polyethylene and a thermoplastic vulcanizate, (iv) a combination of an ethylene/C7-C20 alpha olefin copolymer having an alpha olefin content greater than or equal to about 10%, a linear low density polyethylene, and a thermoplastic vulcanizate, (v) a combination of an ethylene/C7-C20 alpha olefin copolymer having an alpha olefin content greater than or equal to about 10% and a thermoplastic vulcanizate or (vi) a combination of an ethylene/C7-C20 alpha olefin copolymer having an alpha olefin content greater than or equal to about 10% and linear low density polyethylene.
摘要翻译:柔性热塑性组合物包含聚(亚芳基醚); 对聚烯烃具有亲和性的增塑剂; 烯烃芳族化合物和共轭二烯的聚烯烃和氢化嵌段共聚物,其中所述聚烯烃包含(i)α-烯烃含量大于或等于约10%的乙烯/ C 7 -C 20α-烯烃共聚物,(ii) 热塑性硫化橡胶(iii)线性低密度聚乙烯和热塑性硫化橡胶的组合,(iv)具有大于或等于约10%的α-烯烃含量的乙烯/ C 7 -C 20α-烯烃共聚物的组合,线性低 (v)α-烯烃含量大于或等于约10%的乙烯/ C 7 -C 20α-烯烃共聚物和热塑性硫化橡胶的组合,或(vi)乙烯/ 具有大于或等于约10%的α-烯烃含量的C 7 -C 20α-烯烃共聚物和线性低密度聚乙烯。
摘要:
A flame retardant additive composition comprising a phosphoric acid salt selected from the group consisting of melamine phosphate, melamine pyrophosphate, melamine orthophosphate, diammonium phosphate, monoammonium phosphate, phosphoric acid amide, melamine polyphosphate, ammonium polyphosphate, polyphosphoric acid amide and combinations of two or more of the foregoing; a metal hydroxide; and an organic phosphate. The flame retardant additive is useful in a wide range of thermoplastic compositions.
摘要:
A composition includes a poly(arylene ether) and a crosslinked block copolymer of an alkenyl aromatic monomer, such as styrene, and a conjugated diene, such as butadiene. The crosslinked block copolymer includes 50 to about 90 weight percent of repeating units derived from the alkenyl aromatic monomer. The composition exhibits improved ductility relative to a corresponding composition in which the block copolymer is not crosslinked.
摘要:
A method is disclosed to purify a polymeric material by filtering a melt comprising poly(arylene ether) and poly(alkenyl aromatic) through a melt filtration system. The method provides a filtered polymeric composition having reduced levels of particulate impurities. The filtered polymeric composition prepared is suitable for use in data storage media applications.