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    • 1. 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。
    • 4. 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。
    • 6. 发明授权
    • Polyimide
    • 聚酰亚胺
    • US4908409A
    • 1990-03-13
    • US119042
    • 1987-11-10
    • Hideaki OikawaKatsuaki LiyamaNobuhito KogaSaburo KawashimaShoji TamaiMasahiro OhtaAkihiro Yamaguchi
    • Hideaki OikawaKatsuaki LiyamaNobuhito KogaSaburo KawashimaShoji TamaiMasahiro OhtaAkihiro Yamaguchi
    • C08G73/10
    • C08G73/1071C08G73/1046
    • Polyimide of this invention is almost colorless and has remarkably high light transmittance as well as excellent processability and adhesive properties at high temperatures in addition to its substantial high-temperature stability.The polyimide is a novel polyimide capable of being used for space and aeronautical materials, electric and electronic members, automotive parts, and furthermore for high-temperature adhesives.The polyimide has recurring units of the following formula ##STR1## wherein X is a radical selected from the group consisting of a bond, divalent hydrocarbon radical having from 1 to 10 carbons, hexafluorinated isopropylidene radical, carbonyl radical, sulfonyl radical and thio radical, and each nitrogen atom of imide ring is located simultaneously at meta- or para-position to ether linkage.The polyimide of this invention is prepared by reacting 4,4'-(p-phenylenedioxy)diphthalic dianhydride with an ether diamine having the following general formula (V): ##STR2## and successively imidizing the resultant polyamic acid. Examples of the ether diamine used for preparing the polyamide include,2,2-bis[4-(3-aminophenoxy)phenyl]propane,2,2-bis[4-(4-aminophenoxy)phenyl]propane,2,2-bis[4-(3-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropane,2,2-bis[4-(4-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropane,4,4'-bis(3-aminophenoxy)biphenyl,4,4'-bis(4-aminophenoxy)biphenyl,bis[4-(3-aminophenoxy)phenyl] ketone,bis[4-(4-aminophenoxy)phenyl] ketone,bis[4-(3-aminophenoxy)phenyl] sulfide,bis[4-(4-aminophenoxy)phenyl] sulfide,bis[4-(3-aminophenoxy)phenyl] sulfone andbis[4-(4-aminophenoxy)phenyl] sulfone.
    • 本发明的聚酰亚胺除了具有显着的高温稳定性外,几乎是无色的,并且具有非常高的透光率以及优异的加工性和高温下的粘合性。 该聚酰亚胺是一种能用于空间和航空材料,电气和电子部件,汽车部件以及高温粘合剂的新型聚酰亚胺。 聚酰亚胺具有以下结构式的重复单元:其中X是选自键,具有1至10个碳的二价烃基,六氟化异丙叉基,羰基,磺酰基 自由基和硫基,并且酰亚胺环的每个氮原子同时位于醚键或对位至醚键。 本发明的聚酰亚胺通过使4,4' - (对亚苯基二氧基)二邻苯二甲酸二酐与具有以下通式(V)的醚二胺反应:(V)并依次酰亚胺化得到的聚酰胺酸制备。 用于制备聚酰胺的醚二胺的实例包括2,2-双[4-(3-氨基苯氧基)苯基]丙烷,2,2-双[4-(4-氨基苯氧基)苯基]丙烷, 双[4-(3-氨基苯氧基)苯基] -1,1,1,3,3,3-六氟丙烷,2,2-双[4-(4-氨基苯氧基)苯基] -1,1,1,3, 3,3'-六氟丙烷,4,4'-双(3-氨基苯氧基)联苯,4,4'-双(4-氨基苯氧基)联苯,双[4-(3-氨基苯氧基)苯基]酮,双[4-( 双[4-(3-氨基苯氧基)苯基]硫醚,双[4-(4-氨基苯氧基)苯基]硫醚,双[4-(3-氨基苯氧基)苯基]砜和双[4 - (4-氨基苯氧基)苯基]砜。