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    • 3. 发明授权
    • Aromatic polyamide composition and processes for preparing film and
fiber therefrom
    • 芳族聚酰胺组合物及其制备薄膜和纤维的方法
    • US4529763A
    • 1985-07-16
    • US482817
    • 1983-04-07
    • Yorikazu TamuraAkihiro AokiKeizo Shimada
    • Yorikazu TamuraAkihiro AokiKeizo Shimada
    • C08L77/00C08K3/16C08L77/10C08K5/20
    • C08K3/16C08K3/24C08K5/20
    • There is provided an aromatic polyamide composition, which comprises (a) a polyamide, the recurring structural units of which are substantially totally aromatic, (b) an organic amide solvent, and (c) one or more salts selected from chlorides and bromides of an alkali metal, an alkaline earth metal or ammonium. The amounts of the polyamide and the organic amide solvent are in the ranges of 30 to 50% and 70 to 50% by weight, respectively, based on the total weight of the polyamide and the organic amide solvent. The amount of the salt is defined by the formulae:in the case where 30.ltoreq.x.ltoreq.33.6, y.gtoreq.10, andin the case where 33.6 2.8x-84wherein "x" is the amount in % by weight of the polyamide based on the total weight of the polyamide and the organic amide solvent, and "y" is the amount in % by mole of the salt based on the polyamide. The polyamide composition is useful for melt-shaping films, fibers and other shaped articles.
    • 提供了一种芳族聚酰胺组合物,其包含(a)聚酰胺,其重复结构单元基本上是全芳族的,(b)有机酰胺溶剂,和(c)一种或多种选自氯化物和溴化物的盐 碱金属,碱土金属或铵。 基于聚酰胺和有机酰胺溶剂的总重量,聚酰胺和有机酰胺溶剂的量分别为30-50%和70-50wt%。 盐的量由下式定义:在30 / = 10的情况下,在33.6 2.8×-84 其中“x”是聚酰胺的重量百分比(以聚酰胺和有机酰胺溶剂的总重量计),“y”是以聚酰胺为基准的盐的摩尔%。 聚酰胺组合物可用于熔融成型薄膜,纤维和其它成型制品。
    • 5. 发明授权
    • Stereolithographic resin composition
    • 立体光刻树脂组合物
    • US06203966B1
    • 2001-03-20
    • US09155783
    • 1998-10-02
    • Yorikazu TamuraTsuneo Hagiwara
    • Yorikazu TamuraTsuneo Hagiwara
    • G03F7027
    • G03F7/0037B33Y70/00C08K3/22C08K7/02C08K2201/016G03F7/0047G03F7/027
    • A resin composition for forming a three-dimensional object by optical stereolithography, which contains 5 to 65 vol % of aluminum oxide fine particles having an average particle diameter of 3 to 70 &mgr;m and 5 to 30 vol % of whiskers having a diameter of 0.3 to 1 &mgr;m, a length of 10 to 70 &mgr;m and an aspect ratio of 10 to 100, the total content of the aluminum oxide fine particles and the whiskers being 10 to 70 vol %. According to the resin composition for forming a three-dimensional object by optical stereolithography, a high-quality three-dimensional object by optical stereolithography that has high heat resistance with a high heat distortion temperature and high rigidity with a high flexural modulus and that is free from a dimensional change on account of a low linear thermal expansion coefficient even when temperature varies can be obtained by optical stereolithography with high dimensional accuracy.
    • 一种用于通过光学立体光刻法形成三维物体的树脂组合物,其包含5至65体积%的平均粒径为3至70μm的氧化铝细颗粒和5至30体积%的直径为0.3至 1μm,长度为10〜70μm,长径比为10〜100,氧化铝微粒和晶须的总含量为10〜70体积%。根据用于形成三维物体的树脂组合物 通过光学立体光刻技术,通过光学立体光刻法具有高耐热性,高热变形温度和高刚性,高弯曲模量的高质量三维物体,并且由于低线性热膨胀而没有尺寸变化 即使温度变化,也可以通过高尺寸精度的光学立体光刻法获得。
    • 6. 发明授权
    • Photocurable resin composition
    • 光固化树脂组合物
    • US06200732B1
    • 2001-03-13
    • US08837982
    • 1997-04-14
    • Yorikazu TamuraTsuneo Hagiwara
    • Yorikazu TamuraTsuneo Hagiwara
    • G03F7027
    • G03F7/0037B33Y10/00B33Y70/00G03F7/027
    • There is provided a photocurable resin composition comprising (A) an urethane acrylate having three or four acrylate groups in the molecule, (B) a radical polymerizable compound different from the above urethane acrylate; and (C) a photopolymerization initiator, the weight ratio of the urethane acrylate (A) to the radical polymerizable compound (B) being 80:20 to 10:90; and a production process thereof. The said photocurable resin composition can provide moldings and stereolithographed objects having excellent dimensional accuracy with a small volume shrinkage factor at the time of photo-curing and excellent heat resistance with a high thermal deformation temperature as well as excellent transparency and mechanical properties such as tensile strength.
    • 提供一种光固化树脂组合物,其包含(A)分子中具有三个或四个丙烯酸酯基团的氨基甲酸酯丙烯酸酯基团,(B)与上述氨基甲酸酯丙烯酸酯不同的自由基聚合性化合物; 和(C)光聚合引发剂,氨基甲酸酯丙烯酸酯(A)与自由基聚合性化合物(B)的重量比为80:20〜10:90; 及其制造方法。 所述光固化性树脂组合物可以提供具有优异的尺寸精度的模制品和立体光刻对象,在光固化时具有小的体积收缩率,并且具有优异的耐热性和高的热变形温度,以及优异的透明性和机械性能如拉伸强度 。
    • 8. 发明授权
    • Dimensionally stable poly-m-phenylene isophthalamide film
    • 尺寸稳定的聚 - 间苯二甲酰间苯二胺薄膜
    • US4539393A
    • 1985-09-03
    • US482241
    • 1983-04-05
    • Yorikazu TamuraJiro SadanobuTsutomu Nakamura
    • Yorikazu TamuraJiro SadanobuTsutomu Nakamura
    • C08J5/18C08G69/32
    • C08J5/18C08J2377/10
    • A process for producing an aromatic polyamide film, which comprises drawing an undrawn aromatic polyamide film biaxially at a draw ratio of at least 1.5 in a solvent mixture consisting of (a) 5% to 75% by weight of a good solvent of the aromatic polyamide and (b) 25% to 95% by weight of a non-solvent of the aromatic polyamide, and heat treating the drawn film, which contains at least 1% by weight, based on the weight of the film, of a good solvent of said aromatic polyamide, at a temperature of not lower than 150.degree. C.An m-phenyleneisophthalamide polymer film having extremely excellent dimensional stability under moist conditions, which film has a density d of from 1.35 to 1.41 g/cm.sup.3 and principal refractive indices n.sub..alpha., n.sub..beta. and n.sub..gamma. (n.sub..alpha. >n.sub..beta. >n.sub..gamma.) for D-line of a wavelength of 589 nm satisfying the following formula: ##EQU1##
    • 一种芳族聚酰胺薄膜的制造方法,其特征在于,在由(a)5重量%〜75重量%的芳香族聚酰胺的良溶剂组成的溶剂混合物中,以拉伸比为1.5以下的双轴拉伸未拉伸芳香族聚酰胺薄膜 和(b)25重量%至95重量%的芳族聚酰胺的非溶剂,并且对所述拉伸膜进行热处理,所述拉伸膜基于所述膜的重量,含有至少1重量%的良好溶剂 所述芳族聚酰胺在不低于150℃的温度下进行。在湿润条件下具有非常优异的尺寸稳定性的间苯二甲酰间苯二胺聚合物膜,该密度d为1.35至1.41g / cm 3,主折射率为nα ,对于波长为589nm的D线的nβ和nγ(nα> nβ> n伽马)满足以下公式:
    • 9. 发明授权
    • Liquid coating composition containing vinyl fluoride-hexafluoropropylene
resin
    • 含氟乙烯 - 六氟丙烯树脂的液体涂料组合物
    • US4183837A
    • 1980-01-15
    • US576799
    • 1975-05-12
    • Yorikazu TamuraYasuhisa Shishido
    • Yorikazu TamuraYasuhisa Shishido
    • C09D127/14C09D127/20C08K5/11
    • C09D127/14C09D127/20
    • A liquid coating composition containing vinyl fluoride-hexafluoropropylene resin which has superior storage stability even in high concentrations and can form a coating layer having outstandingly superior mechanical strength properties such as tensile strength, initial Young's modulus or hardness and superior transparency and gloss. The liquid coating composition comprises a vinyl fluoride-hexafluoropropylene copolymer having an inherent viscosity of 0.2 to 2 and composed of 5 to 50 mol % of units derived from hexafluoropropylene, 0 to 10 mol % of units derived from a third component and the remainder being units derived from vinyl fluoride, and specified solvent, the amount of said copolymer being 1 to 50% by weight, as solids content, based on the weight of the composition. A method for preparing the vinyl fluoride-hexafluoropropylene copolymer resin suitable for use in the liquid coating compositions in the presence of an organic peroxide initiator, a fluorine-containing surface active agent, a dispersing agent and/or a molecular-weight regulating agent.
    • 一种含氟乙烯 - 六氟丙烯树脂的液体涂料组合物,即使高浓度也具有优异的储存稳定性,并且可以形成具有突出优异的机械强度性能如拉伸强度,初始杨氏模量或硬度以及优异的透明度和光泽的涂层。 液体涂料组合物包含特性粘度为0.2至2的氟代 - 六氟丙烯共聚物,由5-50摩尔%的衍生自六氟丙烯的单元组成,0至10摩尔%的衍生自第三组分的单元,其余为单元 衍生自氟乙烯和特定的溶剂,基于组合物的重量,所述共聚物的量为固体含量为1至50重量%。 一种在有机过氧化物引发剂,含氟表面活性剂,分散剂和/或分子量调节剂存在下适用于液体涂料组合物的氟乙烯 - 六氟丙烯共聚物树脂的制备方法。
    • 10. 发明授权
    • Photocurable resin composition and method of optically forming three-dimensional shape
    • 光固化树脂组合物和光学形成三维形状的方法
    • US06432607B1
    • 2002-08-13
    • US09582974
    • 2000-07-07
    • Yorikazu TamuraTsuneo HagiwaraMakoto Ohtake
    • Yorikazu TamuraTsuneo HagiwaraMakoto Ohtake
    • G03F726
    • C08F2/46B33Y70/00C08F220/36C08F222/22
    • A photocurable resin composition capable of producing a three-dimensional object which has excellent dimensional accuracy with a small volume shrinkage factor and excellent heat resistance with a high heat distortion temperature as well as excellent transparency and mechanical properties. This composition comprises at least one imidated acrylic compound (i) represented by the following formula: wherein R1 is an alicyclic group, an aromatic group or an aliphatic group which may be substituted, R2 is a residual group of amino alcohol, R3 is hydrogen atom or methyl group, and n is 1 or 2; (ii) a radical polymerizable compound and/or a cationic polymerizable compound other than the above imidated acrylic compound; and (iii) a photopolymerization initiator. The weight ratio of the imidated acrylic compound to the radical polymerizable compound and/or cationic polymerizable compound is 80:20 to 10:90.
    • 一种光固化树脂组合物,其能够制造具有小体积收缩率的优异尺寸精度的三维物体和具有高热变形温度的优异​​的耐热性以及优异的透明性和机械性能。该组合物包含至少一种酰亚胺化丙烯酸 由下式表示的化合物(i):其中R1是脂环族基团,芳族基团或可被取代的脂族基团,R2是氨基醇的残基,R3是氢原子或甲基,n是1 或2; (ii)除上述酰亚胺化丙烯酸类化合物以外的自由基聚合性化合物和/或阳离子聚合性化合物; 和(iii)光聚合引发剂。 酰亚胺化丙烯酸类化合物与自由基聚合性化合物和/或阳离子聚合性化合物的重量比为80:20〜10:90。