摘要:
A photosensitive resin composition for CTP flexographic printing original plate containing at least a hydrophobic polymer obtained from water-dispersible latex (A), a hydrophilic polymer (B), a photopolymerizable unsaturated compound (C), a photopolymerization initiator (D), and if necessary, rubber (E), characterized in that, the photopolymerizable unsaturated compound (C) comprises a photopolymerizable oligomer containing no hydroxyl group (C-1), a hydroxyl group-containing photopolymerizable monomer having a pentaerythritol skeleton, a dipentaerythritol skeleton or a glycerol skeleton (C-2) and, optionally, a photopolymerizable monomer containing no hydroxyl group (C-3). The content of the hydroxyl group-containing photopolymerizable monomer (C-2) is 1 to 20% by mass of the photosensitive resin composition. The content of the rubber (E) is preferably 0.5 to 15% by mass of the photosensitive resin composition.
摘要:
A polylactic polyester resin having a chemical structure represented by Formula (1), an acid value of 300 to 2,500 eq/106 g, a number average molecular weight of 2,000 to 50,000, and a lactic acid content percentage of not less than 40 weight %, Z—(O—(CH2CH2O)p—(CO—Y—O)q—X)r (1) wherein Z is an r-valent organic group, Y is —CH(CH3)—, or a mixture of —CH(CH3)— and C2-10 linear or branched alkylene group, and X is a residue of a polybasic acid having 2 or more carboxyl groups, or hydrogen; each of X, Y, and Z may be one kind or a mixture of a plurality of different kinds; and p, q, and r are 0 or a positive integer, p has an average value of not less than 0.5, q has an average value of not less than 5, and r has an average value of not less than 3 and not more than 15. An aqueous dispersion, an aqueous resin composition, an aqueous adhesive, an aqueous paint, aqueous ink, a laminate made of an aqueous adhesive or aqueous ink, a packaging material, a sustained-release biodegradable coating agent, and a sustained-release biodegradable coated body comprising the sustained-release biodegradable coating agent, which contain the polyester resin.
摘要:
The present invention provides a polyamide resin composition containing 1 to 10 part (s) by mass of swellable layered silicate and 0.01 to 0.3 part by mass of a phosphorus-containing compound having 3 or less phosphorus oxidation number to 100 parts by mass of polyamide resins, characterized in that, the polyamide resins comprise a polyamide resin A1 having relative viscosity of from 3.0 to 4.0 and a polyamide resin A2 having relative viscosity of from 1.5 to less than 3.0, that their mixing rate A1/A2 (in terms of ratio by mass) is from 98/2 to 5/95, and that tensile elongation at break of the polyamide resin composition is 3.0% or more. The polyamide resin composition has tenacity which has not been achieved in the conventional nano-composite and has excellent strength, rigidity and hot rigidity in spite of small content of inorganic filler and specific gravity.
摘要:
The present invention is a polyester composition for a masterbatch, which comprises a polyester, a magnesium compound, an alkali metal compound and a phosphorus compound, wherein magnesium atoms, alkali metal atoms and phosphorus atoms are contained in amounts of 400 to 2700 ppm by mass, 40 to 270 ppm by mass and 200 to 1700 ppm by mass, respectively, in the polyester composition, the melt resistivity of the polyester composition is 0.005×108 to 0.05×108 Ω·cm, and few contaminant particles are observed in the polyester composition under specified conditions. The polyester composition for a masterbatch has a satisfactorily low melt resistivity, contains few contaminant particles, and has an excellent color hue and excellent thermal stability.
摘要:
The present invention provides a polyamide resin composition reinforced with glass fiber which can produce a molded product having high anti-vibration property or, in other words, having very high resonance frequency and having, upon necessity, excellent weather-resisting color fastness. A polyamide resin composition reinforced with glass fiber, comprising a polyamide resin (A) constituted from aliphatic polyamide (a1) and aromatic component-containing polyamide (a2), and glass fibers (B) having a cross-sectional area of 1.5 to 5.0×10−6 cm2, wherein ratio by weight of the polyamide resin (A) to the glass fibers (B) [(A):(B)] is from 20:80 to 35:65 and ratio by weight of the aliphatic polyamide (a1) to the aromatic component-containing polyamide (a2) [(a1):(a2)] is from 5:95 to 95:5. The polyamide resin composition reinforced with glass fibers of the present invention can further comprise carbon black (C) in an amount of at most 5% by weight.
摘要:
A novel diaphorase; a method for producing the diaphorase; and use of the diaphorase are provided. The diaphorase comprises any one of the following polypeptides (a) to (c): (a) a polypeptide having the amino acid sequence of SEQ ID NO: 1, (b) a polypeptide having the amino acid sequence of SEQ ID NO: 1 in which one or several amino acid residues are substituted, deleted, inserted, added, and/or inverted, and having diaphorase activity, and (c) a polypeptide having an amino acid sequence with 80% or more identity to the amino acid sequence of SEQ ID NO: 1, and having diaphorase activity.
摘要翻译:一种新颖的心电图 一种生产心肌黄酶的方法; 并提供使用心肌黄酶。 心肌黄酶包含以下多肽(a)至(c)中的任一种:(a)具有SEQ ID NO:1的氨基酸序列的多肽,(b)具有SEQ ID NO:1的氨基酸序列的多肽 其中一个或几个氨基酸残基被取代,缺失,插入,添加和/或倒转,并且具有心肌黄酶活性,和(c)具有与氨基酸序列具有80%或更高同一性的氨基酸序列的多肽 SEQ ID NO:1,并具有心肌黄酶活性。
摘要:
Provided is a polyamide resin composition which can provide an expanded molding being superior in heat resistance and sufficiently reduced in weight and having high load resistance by a simple molding process. The polyamide resin composition is characterized by comprising a polyamide resin (A), a glycidyl-group-containing styrene copolymer (B) having two or more glycidyl groups per molecule, a weight average molecular weight of 4000 to 25000 and an epoxy value of 400 to 2500 Eq/1×106 g and an inorganic reinforcing material (C) in a proportion such that the content of the glycidyl-group-containing styrene copolymer (B) is 0.2 to 25 parts by mass and the content of the inorganic reinforcing material (C) is 0 to 350 parts by mass relative to 100 parts by mass of the polyamide resin (A).
摘要:
It is provided that a polyester film containing a polyester resin obtained by recycling PET bottles and having high lamination strength and slight unevenness in thickness. A biaxially stretched polyester film comprising 50 wt. % or more and 95 wt. % or less of a polyester resin obtained by recycling PET bottles, wherein the content of an isophthalic acid component in all dicarboxylic acid components in the entire polyester resin composing the polyester film is 0.5 mol % or more and 5.0 mol % or less, and the polyester satisfy the specific intrinsic viscosity, the specific thermal shrinkage rate, the specific refractive index in the thickness direction, and the specific unevenness in thickness.
摘要:
The present invention is directed to a heat-resistant polyester blow-molded article made of a polyester resin composition containing 0.035 to 1.75 equivalent/ton of a hindered phenol structural unit and containing at least one selected from the group consisting of antimony compounds as a polymerization catalyst, the cyclic trimer content thereof being less than or equal to 0.5% by mass, the acetaldehyde content thereof being less than or equal to 50 ppm and the intrinsic viscosity thereof being 0.68 to 0.90 dL/g. The present invention enables efficient production of a molded article excellent in transparency and heat-resistant dimensional stability, in particular a heat-resistant blow-molded article. Moreover, according to the present invention, there are provided a polyester resin composition which is excellent in long-term continuous moldability and hardly stains a mold and a molded article prepared therewith, and a method for molding a polyester blow-molded article using the polyester resin composition.
摘要:
The present invention provides a composite separation membrane having a separation layer formed of sulfonated polyarylene ether (SPAE) copolymer on a surface of a porous support membrane wherein both high separation property and high water permeation property are achieved. A composite separation membrane wherein a surface of a porous support membrane containing polyphenylene ether is coated with a thin film of a sulfonated polyarylene ether copolymer constituted from a repeating structure of a hydrophobic segment and a hydrophilic segment, characterized in that when proton nuclear magnetic resonance spectrum is measured at −10° C., chemical shift of a spectral peak top derived from water contained in the membrane satisfies from 4.15 ppm to less than 5.00 ppm.