摘要:
A polyester composition comprises poly(alkylene furandicarboxylate) and a color- stabilizing agent. The poly(alkylene furandicarboxylate) may be poly(ethylene 2,5- furandicarboxylate). Suitable examples of the color-stabilizing agent in such a composition include the compounds selected from the group consisting of a sterically hindered phenolic compound, a phosphonite compound, a phosphite and combinations thereof. In particular the color-stabilizing agent is a phosphite containing at least one tri-substituted phenyl moiety.
摘要:
Provided is a stretched film stretched stretchable to a high draw ratio a method for manufacturing the stretched film, and, a polyamide resin composition used for manufacturing the stretched film. The stretched film containing 0.5 to 15 parts by weight of a compound represented by Formula (1) per 100 parts by weight of a polyamide resin, wherein the polyamide resin is composed of a structural unit derived from diamine and a structural unit derived from dicarboxylic acid; 50% by mole or more of the structural unit derived from diamine is derived from xylylenediamine, and 50% by mole or more of the structural unit derived from dicarboxylic acid is derived from a straight-chain aliphatic α,ω-dicarboxylic acid having 4 to 20 carbon atoms: wherein R 1 represents an alkyl group having 1 to 10 carbon atoms, R 2 represents an alkyl group having 2 to 12 carbon atoms, and n represents an integer of 1 to 3.
摘要:
There is provided a polyamide composition for an LED reflection plate, including a polyamide (A), a titanium oxide (B), a magnesium oxide (C), a phenolic antioxidant (D), and a phosphorus-containing antioxidant (E), wherein the polyamide (A) is a polyamide having a dicarboxylic acid unit comprising 50% by mol or more of terephthalic acid unit and a diamine unit and having a melting point of 280°C or higher; the phenolic antioxidant (D) does not have 4 or more phenol structures in its molecule; wherein the content of the titanium oxide (B) is 10 to 100 parts by mass, the content of the magnesium oxide (C) is 0.50 to 15.0 parts by mass, and the content of the phenolic antioxidant (D) is 0.10 to 0.80 part by mass, with respect to 100 parts by mass of the polyamide (A); and the content of the phosphorus-containing antioxidant (E) satisfies the following expression (I): 0.25 ≤ mass ratio D component / E component ≤ 3.0 There are also provided a reflection plate obtained by molding the composition, and a light-emitting device having the reflection plate.
摘要:
The present invention provides a resin additive masterbatch which not only is capable of containing a resin additive having a low melting point at a high concentration, but also can be continuously produced without strand breakage and has an improved surface tackiness. The resin additive masterbatch comprises, with respect to 100 parts by mass of (A) a crystalline resin, 100 to 900 parts by mass of (B) a resin additive, 0.1 to 10 parts by mass of (C) a metal salt of an organic acid other than fatty acid and 0.1 to 10 parts by mass of (D) a gelling agent, the resin additive masterbatch being characterized in that the above-described (B) resin additive retains a liquid state when melted with heating to 250°C and then cooled to 80°C and kept for 30 minutes.
摘要:
An object is to provide a crosslinkable resin composition which does not easily cause an increase in the pressure and a discharge variation in an extruder charged with the crosslinkable resin composition, with which an insulating coating layer can be continuously and stably formed by extrusion molding for a long time, thereby realizing an increase in the production unit of an electric wire/cable. A crosslinkable resin composition of the present invention contains 100 parts by mass of an ethylene-based resin (A), a stabilizer (B) containing 0.001 to 0.5 parts by mass of a hindered amine light stabilizer (B3), and 0.5 to 3.0 parts by mass of an organic peroxide (C). The hindered amine light stabilizer (B3) is a mixture of a low-molecular-weight hindered amine compound having a molecular weight of 100 to 1,000 and a high-molecular-weight hindered amine compound having a molecular weight of 1,500 to 5,000. The hindered amine light stabilizer (B3) has a reduced viscosity of 3.5 to 5.5 cm 3 /g (40°C) and a reduced viscosity of 2.0 to 3.5 cm 3 /g (110°C).
摘要:
Provided is a polyacetal resin composition that makes it possible, when formed into a molded article, to minimize deterioration during contact with sulfur-containing fuel. This polyacetal resin composition contains (A) 100 parts by weight of polyacetal resin, (B) 0.1-1.0 parts by weight of hindered phenolic antioxidant, (C) 0.1-2.0 parts by weight of alkaline earth metal oxide, (D) 0.5-3.0 parts by weight of polyalkylene glycol, and (E) 0.01-1.0 parts by weight of polyvalent fatty acid full ester. This polyacetal resin composition minimizes reductions in the weight of a molded article even after the molded article has been immersed in sulfur-containing fuel.
摘要:
Novel rubbers are provided which are stabilized by a specific combination of at least three different anti ageing compounds. Said rubbers dispose of an increase storage stability as well as an improved colour stability over the short term as well as over the long term. The invention also relates a process for producing said novel rubbers, vulcanizable mixtures based thereon, a process for producing vulcanizates from those mixtures and the vulcanizates obtained.
摘要:
Provided is an additive masterbatch comprising a low-melting-point resin additive at a high concentration, which additive masterbatch can be continuously produced without strand breakage, shows excellent clumping resistance to inhibit bleeding from a pellet thereof and thus has few use restrictions for potential application. The resin additive masterbatch is characterized by comprising, with respect to 100 parts by mass of (A) a polyolefin resin: 50 to 200 parts by mass of (B) a resin additive having a melting point of not higher than 65°C; and 10 to 20 parts by mass of (C) an inorganic layered compound.
摘要:
Polyarylene compositions including one or more organic substances. The organic substances can be selected from the group consisting of a paraffin, an olefin, an olefin oligomer, an alkoxylated acyclic carboxylic acid, an alkoxylated acyclic carboxylic acid amide, an acyclic carboxylic acid, an acyclic carboxylic acid ester, an acyclic carboxylic acid alkali metal salt, an acyclic carboxylic acid amide, an alkoxylated acyclic alcohol, an acyclic alcohol, an alkoxylated alkyl phenol and an alkyl phenol. The organic substances provide improved processability. Further inclusion of a sterically hindered phenol provides tougher polyarylene compositions.