Process for producing carbon fibers
    72.
    发明授权
    Process for producing carbon fibers 失效
    生产碳纤维的方法

    公开(公告)号:US4534950A

    公开(公告)日:1985-08-13

    申请号:US520157

    申请日:1983-08-04

    CPC分类号: D01F9/145

    摘要: A process for producing carbon fibers, comprising melt spinning a carbonaceous pitch to obtain pitch fibers, contacting the thus obtained pitch fibers with hydrobromic acid, making the thus contacted fibers infusible in an oxidizing atmosphere and then carbonizing and, if desirable, graphitizing the thus treated pitch fibers to obtain the carbon fibers.

    摘要翻译: 一种生产碳纤维的方法,包括将碳质沥青熔融纺丝以获得沥青纤维,使由此获得的沥青纤维与氢溴酸接触,使得这样接触的纤维在氧化气氛中不可渗入,然后碳化,如果需要,将如此处理的石墨化 沥青纤维以获得碳纤维。

    Starting pitches for carbon fibers
    73.
    发明授权
    Starting pitches for carbon fibers 失效
    碳纤维的起始间距

    公开(公告)号:US4533535A

    公开(公告)日:1985-08-06

    申请号:US579206

    申请日:1984-02-10

    CPC分类号: D01F9/322 D01F9/155

    摘要: A starting pitch for carbon fibers is obtained by mixing (1) 100 parts by volume of a heavy fraction oil boiling at not lower than 200.degree. C. and obtained at the time of fluidized catalytic cracking of petroleum with (2) 10 to 200 parts by volume of a fraction boiling in the range of 250.degree. to 550.degree. C. obtained by distilling under reduced pressure an oil produced at the time of heat treating a starting pitch and then heat treating the resulting mixture at a temperature of from 370.degree. C. to 480.degree. C. under a pressure of from 2 to 50 Kg/cm.sup.2.G thereby to obtain the starting pitch for carbon fibers. The thus obtained starting pitch is heat treated to obtain a precursor pitch which is melt spun, infusibilized, carbonized or graphitized to obtain the carbon fibers.

    摘要翻译: 通过混合(1)100体积份沸点不低于200℃并在石油流化催化裂化时获得的(2)10〜200份的重馏分油获得碳纤维起始沥青 通过在减压下蒸馏在热处理起始沥青时产生的油,然后在370℃的温度下热处理所得混合物而获得的在250〜550℃范围内沸腾的馏分 至480℃,压力为2至50Kg / cm 2 G.由此得到碳纤维的起始间距。 将由此获得的起始间距进行热处理以获得熔融纺丝,不熔化,碳化或石墨化以获得碳纤维的前体沥青。

    Process for polyolefins production
    74.
    发明授权
    Process for polyolefins production 失效
    聚烯烃生产工艺

    公开(公告)号:US4518752A

    公开(公告)日:1985-05-21

    申请号:US551516

    申请日:1983-11-15

    摘要: A process for the homopolymerization or copolymerization of olefins is disclosed, which is carried out in the presence of an improved catalyst comprising a solid catalyst component and an organometal compound, said solid catalyst component being obtained by the reaction of: (a) a magnesium halide, (b) a compound represented by the formula: Me(OR).sub.n X.sub.z-n where Me is any of the Group I-VIII elements of the Periodic Table, excluding Al, Si, Ti and V, R is a hydrocarbon residual group having 1-24 carbon atoms, X is a halogen atom, z represents the valence of Me and n is 0

    摘要翻译: 公开了一种烯烃均聚或共聚合的方法,该方法在包含固体催化剂组分和有机金属化合物的改进催化剂存在下进行,所述固体催化剂组分通过以下反应获得:(a)卤化镁 ,(b)由Me(OR)n X z-n表示的化合物,其中Me是元素周期表中的I-VIII族元素中的任何一种,不包括Al,Si,Ti和V,R是具有 1-24个碳原子,X是卤素原子,z代表Me的价数,n是0

    Starting pitches for carbon fibers
    78.
    发明授权
    Starting pitches for carbon fibers 失效
    碳纤维的起始间距

    公开(公告)号:US4397830A

    公开(公告)日:1983-08-09

    申请号:US366917

    申请日:1982-04-09

    CPC分类号: D01F9/155 C10C3/00 D01F9/322

    摘要: A starting pitch for carbon fibers, obtained by (A) mixing (1) a heavy fraction oil boiling at not lower than 200.degree. C. obtained at the time of steam cracking of petroleum with (2) a hydrogenated oil selected from aromatic hydrocarbons of 2-10 rings in which the nuclei have been hydrogenated and specific fractions boiling at 160.degree.-650.degree. C. and containing such nuclei-hydrogenated hydrocarbons and then (B) heat treating the resulting mixed oil at 370.degree.-480.degree. C. and 2-50 Kg/cm.sup.2.G to obtain the starting pitch for carbon fibers.

    摘要翻译: 通过(A)混合(1)在石油蒸汽裂解时获得的沸点不低于200℃的重馏分油,(2)氢化油,所述氢化油选自: 其中核被氢化的2-10环,在160-65℃沸腾的特定馏分并含有这些核氢化烃,然后(B)在370-480℃下热处理所得混合油, 2-50kg / cm 2 G.以获得碳纤维的起始间距。

    Process for the production of polyolefins
    79.
    发明授权
    Process for the production of polyolefins 失效
    生产聚烯烃的方法

    公开(公告)号:US4324876A

    公开(公告)日:1982-04-13

    申请号:US209318

    申请日:1980-11-24

    CPC分类号: C08F10/00

    摘要: A process for the homopolymerization or copolymerization of olefins is disclosed. The process is carried out in the presence of a catalyst system comprising the combination of an organometallic compound with a component resulting from the mutual contact of (i) an inorganic magnesium compound of a spherical shape having an average particle size of from 1 to 100 microns; (ii) a compound represented by the formula AlX.sub.3.OR'R" (where X represents a halogen atom, and R' and R" represent a hydrocarbon residual group having 1 to 20 carbon atoms; and (iii) a titanium compound represented by the formula Ti(OR).sub.4 (where R represents a hydrocarbon residual group having 1 to 20 carbon atoms). The resulting polymers are provided with a spherical particle shape.

    摘要翻译: 公开了一种烯烃均聚或共聚合的方法。 该方法在催化剂体系的存在下进行,所述催化剂体系包含有机金属化合物与由(i)平均粒度为1至100微米的球形的无机镁化合物的相互接触所形成的组分的组合 ; (ii)由式AlX3.OR'R“表示的化合物(其中X表示卤素原子,R'和R”表示碳原子数为1〜20的烃残基;(iii)钛化合物 由式Ti(OR)4(其中R表示具有1至20个碳原子的烃残基)表示,所得聚合物具有球形颗粒形状。

    Curable resin composition
    80.
    发明授权
    Curable resin composition 失效
    可固化树脂组合物

    公开(公告)号:US4317754A

    公开(公告)日:1982-03-02

    申请号:US210303

    申请日:1980-11-25

    摘要: A curable resin composition is disclosed for use in the manufacture of laminates applied to electronics equipment. The composition essentially comprises a resol type phenolic resin which is obtained from the reaction of an amidated drying oil and a phenol-formal dehyde in the presence of an alkali catalyst. Another form of the composition includes an amidated butadiene polymer to provide improved flexibility and chemicals resistance.

    摘要翻译: 公开了用于制造应用于电子设备的层压板的可固化树脂组合物。 所述组合物基本上包含在碱催化剂存在下由酰胺化干燥油和苯酚 - 甲醛脱水反应获得的甲阶酚醛树脂型酚醛树脂。 组合物的另一种形式包括酰胺化的丁二烯聚合物,以提供改善的柔韧性和耐化学性。