会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 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。
    • 3. 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。
    • 9. 发明授权
    • Polyimide resin-fluoropolymer compositions
    • 聚酰亚胺树脂 - 含氟聚合物组合物
    • US4816516A
    • 1989-03-28
    • US63962
    • 1987-06-19
    • Norimasa YamayaNobuhito KogaKenichi Baba
    • Norimasa YamayaNobuhito KogaKenichi Baba
    • C08L27/12C08L79/08C08L87/00
    • C08L79/08C08L27/12Y10S525/928
    • This invention is a polyimide resin composition containing 100 parts by weight of polyimide having recurring units of the following formula: ##STR1## wherein Y is a bond, divalent hydrocarbon radical having from 1 to 10 carbons, hexafluorinated isopropylidene radical, carbonyl radical, thio radical, sulfinyl radical, sulfonyl radical or oxide, and R is a tetravalent radical of aliphatic radical having at least 2 carbons, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, or noncondensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function and from 5 to 100 parts by weight of fluororesin. The resin composition can provide molded products which are excellent in high-temperature stability, dimensional stability and mechanical strength and moreover have a low friction coefficient and good wear resistance. Therefore, the composition is useful as the material for electric and electronic devices, precision instrument parts etc.Polyimide of this invention can be prepared from aromatic diamines and tetracarboxylic acid dianydrides. Suitable aromatic diamines are 4,4'-bis(3-aminophenoxy)biphenyl, 2,2-bis[4-(3-aminophenoxy)phenyl]propane, bis[4-(3aminophenoxy)phenyl] sulfide etc. Suitable tetracarboxylic acid dianhydrides are pyromellitic dianhydride and 3,3', 4,4'-benzophenonetetracarboxylic dianhydride.Representative fluororesin which can be used in this invention is polytetrafluoroethylene.
    • 本发明是一种聚酰亚胺树脂组合物,其含有100重量份具有下式重复单元的聚酰亚胺:其中Y为键,具有1至10个碳的二价烃基,六氟化异丙叉基, 羰基,硫基,亚磺酰基,磺酰基或氧化物,R是具有至少2个碳的脂族基团的四价基团,脂环族基团,单芳族基团,缩合多芳族基团或非缩合多芳族基团,其中芳族基团与 键或交联功能和5至100重量份的氟树脂。 树脂组合物可以提供高温稳定性,尺寸稳定性和机械强度优异的成型体,并且摩擦系数低,耐磨性好。 因此,该组合物可用作电气和电子设备的材料,精密仪器部件等。本发明的聚酰亚胺可以由芳族二胺和四羧酸二酐制备。 合适的芳族二胺是4,4'-双(3-氨基苯氧基)联苯,2,2-双[4-(3-氨基苯氧基)苯基]丙烷,双[4-(3-氨基苯氧基)苯基]硫醚等。适用的四羧酸二酐 是均苯四酸二酐和3,3',4,4'-二苯甲酮四羧酸二酐。 可用于本发明的代表性氟树脂是聚四氟乙烯。