摘要:
The present invention provides a composition which is useful for promoting hair growth and methods for using the same. The hair growth promoter composition comprises a compound of the formula: wherein X, R1, R2, Z1, and Z2 are those described herein. Preferably, the compound comprises at least two saccharide moieties.
摘要:
A fiber-reinforced lightweight resin molded article with pores has a portion having a porosity lower than that of other general portions. Such a low-porosity portion serves as a rib in the resultant molded articles, to thereby enables to provide a fiber-reinforced lightweight resin molded article having excellent rigidity, bending strength, impact strength, uniformity of strength, resistance to local stress and torsion. The present invention also provides an efficient method for manufacturing the fiber-reinforced lightweight resin molded article.
摘要:
The present invention relates to a novel class of glycoside indoles. More specifically, the present invention relates to a novel class of glycoside indoles isolated from Calanthe discolor Lindl. and derivatives thereof.
摘要:
The present invention is directed to a method of obtaining a gas-introduced fiber-reinforced resin injection molding and to a molding obtained by the method. According to the present invention, there can be obtained a lightweight gas-introduced fiber-reinforced resin injection molding containing glass fibers or like fibers having excellent rigidity and strength and improved surface properties. The method includes the steps of: injecting into a die a molten resin obtained through the plasticization of a molding material; and introducing gas into the molten resin, the molding material comprising fiber-containing thermoplastic resin pellets which contain reinforcing fibers having a length of 2 mm to 100 mm, the reinforcing fibers accounting for 5% to 70% by weight of the molding material, the die including a movable die capable of advancing into and retracting from the internal cavity of the die, wherein after the injection of the molten resin into the die cavity is started, the movable die is retracted to a position where the die cavity assumes a volume corresponding to the molding, and gas is introduced into the molten resin filling the die cavity.
摘要:
Disclosed is a method of molding a fiber-reinforced resin laminate which can manufacture a lightweight laminated molding having excellent mechanical characteristics regardless of the shape of a molding, which can readily unite a surface coat material and a molding while the surface coat material is held in good condition, and which can impart excellent appearance to a laminated molding. Also disclosed is a laminated molding manufactured by the method. The method uses a molding material which contains fiber-containing thermoplastic resin pellets which, in turn, contain reinforcing fibers having a length of 2 mm to 100 mm. The reinforcing fibers account for 5% to 70% by weight of the molding material. A molten resin obtained through the plasticization of the molding material is injected into a die, onto which a surface coat material for covering the surface of a molding is previously attached. After injection of the molten resin into the die cavity is started, a movable die is advanced so as to compress the molten resin contained in the die cavity, followed by expansion of the volume of the die cavity to that of an intended molding.
摘要:
Disclosed is a glass fiber reinforced polyolefin resin composition comprising 15-80% by weight of polypropylene, 20-60% by weight of polybutene-1 and 5-60% by weight of glass fiber. This resin composition is excellent in the balance of impact strength, stiffness, heat distortion temperature, surface hardness and processability. When this composition is molded, the molded products have no surface roughness and no color shade and have good appearance. The properties are further improved when a modified polyolefin alone or together with a crystal nucleating agent are added.
摘要:
A polyolefin composition is disclosed, which comprises a polyolefin and an inorganic filler, wherein the polyolefin composition comprising (A) 75 to 97% by weight of a polyolefin component comprising (a) 90-65 parts by weight of a polymer composition comprising a crystalline polypropylene component and an ethylene-propylene random copolymer component and having an ethylene content of 7% by weight or less and/or a propylene homopolymer and (b) 10 to 35 parts by weight of a polyethylene having a melt index of not lower than 10 g/10 min., said melt index being from 1.0 to 50 times that of the polymer (a), and (B) 25 to 3% by weight of a fibrous inorganic filler having an average fiber diameter of 0.1 to 0.8 micrometer and an aspect ratio of 20 to 60.The polyolefin composition is capable of providing, upon molding, articles having good surface appearance, in particular glossiness and improved mechanical strengths with less warping and deformation.
摘要翻译:公开了一种聚烯烃组合物,其包含聚烯烃和无机填料,其中所述聚烯烃组合物包含(A)75至97重量%的聚烯烃组分,其包含(a)90-65重量份的包含结晶 聚丙烯组分和乙烯 - 丙烯无规共聚物组分,乙烯含量为7重量%以下,和/或丙烯均聚物,和(b)10-35重量份熔体指数不低于10的聚乙烯 g / 10分钟,所述熔体指数为聚合物(a)的1.0〜50倍,(B)为平均纤维直径为0.1〜0.8微米的纤维状无机填料的25〜3重量% 长宽比为20至60.聚烯烃组合物能够在模制时提供具有良好表面外观,特别是光泽度和改进的机械强度并且具有较少翘曲和变形的制品。