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    • 2. 发明授权
    • Readily soluble, amorphous polyimide, and preparation process of same
    • 易溶,无定形聚酰亚胺及其制备方法相同
    • US5480965A
    • 1996-01-02
    • US280551
    • 1994-07-26
    • Wataru YamashitaYuichi OkawaHideaki OikawaTadashi AsanumaYuko IshiharaMitsunori MatsuoKeizaburo YamaguchiAkihiro YamaguchiShoji Tamai
    • Wataru YamashitaYuichi OkawaHideaki OikawaTadashi AsanumaYuko IshiharaMitsunori MatsuoKeizaburo YamaguchiAkihiro YamaguchiShoji Tamai
    • C07C201/12C07C205/45C07C221/00C07C225/22C08G73/10C08G73/12C08J5/18C08L79/08C08G69/26C08L77/00
    • C08G73/10C08G73/1007C08G73/1014C08G73/1017C08G73/1067Y10T428/31504Y10T428/31721
    • This invention relates to a novel thermoplastic and amorphous polyimide which is readily soluble in organic solvent, a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising the thermoplastic polyimide and a fibrous reinforcement, a process for preparing the resin composition, an injection molded article of the resin composition, a polyimide-based composite obtained by molding the above soluble and thermoplastic polyimide in combination with a fibrous reinforcement, and a fibrous reinforcement having a surface modified with the above polyimide.The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: ##STR1## wherein m and n are individually an integer of 0 or 1, and R is ##STR2## The polyimide of the invention is essentially amorphous, excellent in melt flow stability in the decreased temperature as compared with conventionally known polyimide and has greatly improved processability.The polyimide of the invention obtained by using a novel aromatic diamino compound as a monomer can control various properties such as melt flow ability and solubility in solvents by side chains and not by principal chain of polyimide. Thus, excellent melt flow property and solubility in solvents can be obtained while maintaining high heat resistance and adhesive property which are derived from benzophenone structure of the diamino compound of the the invention.
    • 本发明涉及易溶于有机溶剂的新型热塑性和无定形聚酰亚胺,用于聚酰亚胺的新型芳族二氨基化合物及其制备方法,包含热塑性聚酰亚胺和纤维增强剂的聚酰亚胺基树脂组合物, 用于制备树脂组合物的树脂组合物的注塑制品,通过将上述可溶性和热塑性聚酰亚胺与纤维增强剂组合成型而获得的聚酰亚胺类复合材料和具有用上述聚酰亚胺改性的表面的纤维增强剂。 聚酰亚胺包含必需的结构单元,其具有一个或多个下式的重复结构单元:其中m和n分别为0或1的整数,R为本发明的聚酰亚胺基本上为 与常规已知的聚酰亚胺相比,在降低的温度下的熔体流动稳定性优异并且具有极大的改进的加工性。 通过使用新颖的芳族二氨基化合物作为单体获得的本发明的聚酰亚胺可以通过侧链而不是聚酰亚胺的主链来控制各种性能如熔体流动性和在溶剂中的溶解度。 因此,在保持由本发明的二氨基化合物的二苯甲酮结构得到的高耐热性和粘合性的同时,可以获得优异的熔体流动性和溶剂中的溶解性。
    • 4. 发明授权
    • Polyimide composition
    • 聚酰亚胺组合物
    • US5321096A
    • 1994-06-14
    • US35043
    • 1993-03-22
    • Yuichi OkawaNobuhito KogaHideaki OikawaTadashi AsanumaAkihiro Yamaguchi
    • Yuichi OkawaNobuhito KogaHideaki OikawaTadashi AsanumaAkihiro Yamaguchi
    • C08G73/10C08L71/00C08L79/08C08L81/06C08F283/04C08G69/48
    • C08L71/00C08G73/101C08L79/08C08L81/06
    • A thermoplastic resin composition comprise 99.9.about.50 parts by weight of one or more thermoplastic resin selected from the group consisting of aromatic polyimide, aromatic polyetherimide, aromatic polyamideimide, aromatic polyethersulfone and aromatic polyether ketone and 0.1.about.50 parts by weight of one or more liquid crystal type aromatic polyimide having recurring structural units represented by the formula (1): ##STR1## wherein R.sub.1 .about.R.sub.5 is a hydrogen atom, fluorine atom, trifluoromethyl, methyl, ethyl or cyano and may be the same or different, and R is a tetravalent radical having 6.about.27 carbon atoms and being selected from the group consisting of a monoaromatic radical, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member.The present invention can provide thermoplastic resin compositions which have remarkably good processability and excellent thermal stability in addition to essentially excellent properties of each resin.
    • 热塑性树脂组合物包含99.9重量份的一种或多种选自芳族聚酰亚胺,芳族聚醚酰亚胺,芳族聚酰胺酰亚胺,芳族聚醚砜和芳族聚醚酮的热塑性树脂和0.1重量份的一种或多种液体 具有由式(1)表示的重复结构单元的结晶型芳族聚酰亚胺:(1)n原子,氟原子,三氟甲基,甲基,乙基或氰基,可以相同或不同,R是具有 6个碳原子,并且选自由直链或桥构件相互连接的单芳族基团,缩合多芳族基团和非缩合芳族基团组成的组。 本发明可以提供具有非常好的加工性和优异的热稳定性的热塑性树脂组合物,除了每种树脂的基本上优异的性能。
    • 8. 发明授权
    • Olefin polymerization catalyst system
    • 烯烃聚合催化剂体系
    • US6063725A
    • 2000-05-16
    • US743374
    • 1996-11-04
    • Tadahiro SunagaYukio IshiiTadashi Asanuma
    • Tadahiro SunagaYukio IshiiTadashi Asanuma
    • C08F4/02C08F4/602C08F4/642C08F4/659C08F4/6592C08F10/00C08F110/06B01J31/00
    • C08F10/00C08F110/06C08F4/65912C08F4/65916C08F4/65922
    • An olefin polymerization catalyst system comprising an organic transition metal compound and a support, wherein an organic transition metal compound is soluble in an inert organic solvent and a support which is insoluble in the inert organic solvent, and the support comprises an organic high molecular weight compound which contains a specific carbonyl-containing group. The catalyst system can polymerize an olefin in a high activity, provides polymer with high stereoregularity, prevents adhesion or fouling of the polymer generated in the course of polymerization or an organic aluminum oxy compound on the inner wall of the reactor, leads to high bulk density of the polymer and very reduced level of fisheye and/or gel generation on the processed item, can maintain high productivity, can manufacture high quality product, and thus provides extremely high contribution in industry.
    • 一种包含有机过渡金属化合物和载体的烯烃聚合催化剂体系,其中有机过渡金属化合物可溶于惰性有机溶剂和不溶于惰性有机溶剂的载体,载体包含有机高分子量化合物 其含有特定的含羰基。 催化剂体系可以以高活性聚合烯烃,提供具有高立构规整性的聚合物,防止在聚合过程中产生的聚合物的粘附或结垢或反应器内壁上的有机铝氧化合物导致高堆积密度 的聚合物,并且处理物品上的鱼眼和/或凝胶生成水平非常降低,可以保持高生产率,可以制造高品质的产品,从而在工业中提供极高的贡献。
    • 9. 发明授权
    • Syndiotactic propylene copolymer, preparation of the same, and resin
composition containing the same
    • 间同立构丙烯共聚物,其制备方法和含有它们的树脂组合物
    • US5534595A
    • 1996-07-09
    • US468316
    • 1995-06-06
    • Tadashi AsanumaHiroshi MatsuzawaTateyo SasakiKaoru Kawanishi
    • Tadashi AsanumaHiroshi MatsuzawaTateyo SasakiKaoru Kawanishi
    • C08F8/00C08F4/642C08F210/06
    • C08F8/00
    • Disclosed is a syndiotactic propylene copolymer containing 0.01 to 40 mol % of olefin units containing --OH group in the side chain. Of absorption peaks attributed to the methyl groups of the propylene units on an absorption spectrum by .sup.13 C-NMR of the copolymer, the intensity of an absorption peak observed at about 20.2 ppm is 0.3 or more of the intensity of absorption peaks of all the methyl groups attributed to the propylene units. The copolymer is produced by copolymerizing propylene and an alkenylsilane or alkenylborane compound in the presence of a catalyst system comprising an asymmetric ligands-having transition metal compound and an aluminoxane, followed by heat-treating the resulting propylene-alkenylsilane copolymer in the presence of a trialkylamine oxide and KF.HF or oxidizing and decomposing the resulting propylene-alkenylborane compound copolymer. Also disclosed is a resin composition comprising the copolymer and other polyolefin(s).
    • 公开了含侧链中含有-OH基的烯烃单元为0.01〜40摩尔%的间同立构丙烯共聚物。 归因于丙烯单元的甲基的吸收峰在共聚物的13 C-NMR吸收光谱上,在约20.2ppm处观察到的吸收峰的强度为所有甲基的吸收峰的强度的0.3以上 归因于丙烯单元。 共聚物通过在包含不对称配体的过渡金属化合物和铝氧烷的催化剂体系的存在下共聚丙烯和烯基硅烷或烯基硼烷化合物,然后在三烷基胺存在下热处理所得的丙烯 - 链烯基硅烷共聚物 氧化物和KF.HF,或氧化和分解得到的丙烯 - 烯基硼烷化合物共聚物。 还公开了包含共聚物和其它聚烯烃的树脂组合物。