摘要:
Moldings made with a polyester resin which comprises a cyclic compound represented by a following formula A1-B-A2 (In the formula, A1 and A2 are the same or different and show groups represented by a below-described formula, P shows a benzene ring which may be replaced by a material, and B shows a bivalent hydrocarbon group which may be replaced by a material) and polyester capable of having a crystal structure.
摘要:
A resin composition includes: a polylactic acid resin; an impact-resistant resin which is superior in impact resistance to the polylactic acid resin and is incompatible with or hardly compatible with the polylactic acid resin; and a nucleating agent which promotes crystallization of the polylactic acid resin; the nucleating agent existing at least in the phase of the impact-resistant resin.
摘要:
A reactor comprising a reacting vessel 31 that contains a fluid including high temperature and high pressure water under target reaction temperature and reaction pressure condition and performs a reaction treatment to a reactant by the fluid, a first pipe 25 connected to the reacting vessel 31 to supply the reactant to the reacting vessel 31, and a first partition means 50 for partitioning between first pipe 25 and the reacting vessel 31 so as to prevent a leakage of any one of the fluid, the reactant, and a reaction product from the reacting vessel 31 side to the first pipe 25 side. The first partition means 50 is comprised of for example a valve 51, a shaft 52, a weight 53, a supporting member 54, and a pipe 55, and normally, due to the weight 53, the valve 51 closes an opening of a bottom end of the pipe 55. That is, it isolates the pipe 55 and the inside of the reacting vessel 31. At this time, although the valve 51 does not completely seal up the inside of the reacting vessel 31, it has the ability to prevent a large amount of hot water HW in the reacting vessel 31 from leaking into the pipe 25 due to a convection current thereof.
摘要:
A resin composition includes a polyester capable of forming a crystal structure, and a substance represented by the following general structural formula (1), the substance represented by the following general structural formula (1) has a dehydration-condensed structure of two molecules of natural product-derived α-amino acids or a substitution structure thereof, and the two molecules of α-amino acids are not simultaneously glycine. In the above general structural formula, R1, R2, R3, and R4 indicate groups or substituent groups thereof bonded to the α carbons of the α-amino acids.
摘要:
A resin composition includes: a polylactic acid resin; an impact-resistant resin which is superior in impact resistance to the polylactic acid resin and is incompatible with or hardly compatible with the polylactic acid resin; and a nucleating agent which promotes crystallization of the polylactic acid resin; the nucleating agent existing at least in the phase of the impact-resistant resin.
摘要:
A resin composition that has high mechanical strength properties, has superior chemical characteristics such as chemical resistance and heat resistance, has high degree of freedom of product design, and has a structure considering the impact on environment is provided at low cost. The resin composition composed of a polyamide resin contains a cotton fiber as a natural fiber. The additive amount of the cotton fiber is preferably 1 wt % to 25 wt % both inclusive. The polyamide resin is polyamide 11 using castor oil as a raw material of plant origin. The average fiber diameter of the cotton fiber is 100 μm or less. The polyamide resin and the cotton fiber are melted and kneaded, and then hot-formed, and thereby a shaped article containing a plant fiber can be fabricated. In addition to the cotton fiber, a plant fiber such as a hemp fiber, a bamboo fiber, and wood powder and a biofiber such as a silk fiber may be applied.
摘要:
Disclosed is a biodegradable resin composition containing at least one biodegradable organic high molecular compound, a flame retardant additive containing a phosphorus-containing compound, and a hydrolysis suppressing agent suppressing the hydrolysis of the at least one biodegradable organic high molecular compound. An aliphatic polyester resin is polylactic acid, polycaprolactone, polyhydroxy lactic acid, polyhydroxy valeric acid, polyethylene succinate, polybutylene succinate, polybutylene adipate, polymalic acid, polyesters synthesized by fermentation, or a copolymer containing at least one of them. A polysaccharide is cellulose, starch, chitin, chitosan, dextrane, a derivative of at least one of them, or a copolymer containing at least one of them.
摘要:
Disclosed is a biodegradable resin composition containing at least one biodegradable polysaccharide, a flame retardant additive containing a hydroxide, and a hydrolysis suppressing agent suppressing the hydrolysis of the at least one biodegradable polysaccharide. The hydroxide contains at least a metal hydroxide, which metal hydroxide is at least one of aluminum hydroxide, magnesium hydroxide and calcium hydroxide. The flame retardant additive preferably further contains a nitrogen compound.
摘要:
A material for acoustic apparatus housing, which is advantageous not only in that it prevents the resin from suffering corrosion and is unlikely to impose a burden on the environment, but also in that it has excellent performance as an acoustic apparatus housing. A material for acoustic apparatus housing, characterized in that it comprises a biodegradable polymer compound, an inorganic material, and a hydrolysis inhibitor.
摘要:
An appliance includes a housing-case, a main unit of such appliance and an optional structural member, wherein at least portions of the housing-case and the structural member are made of biodegradable material containing polylactic acid as a major component is provided. Such appliance can achieve durability sufficient for the practical use without causing environmental impact if the housing-case and structural member thereof are disposed as they are.