Process for producing .alpha.-olefin polymers
    11.
    发明授权
    Process for producing .alpha.-olefin polymers 失效
    制备α-烯烃聚合物的方法

    公开(公告)号:US4363901A

    公开(公告)日:1982-12-14

    申请号:US233778

    申请日:1981-02-12

    摘要: A process for producing high-quality .alpha.-olefin polymers with a higher yield in a long lasting stabilized manner even in the case of gas phase polymerization is provided. In the production process of .alpha.-olefin polymers which comprises reacting a trivalent metal halide with a divalent metal compound to obtain a solid product (I); reacting this product with at least one electron donor (ED) and at least one electron acceptor (EA), once to 10 times, and at that time, using TiCl.sub.4 at least once as the (EA) to obtain a solid product (II); combining this product with an organoaluminum compound (OAl) and an (ED) (these three being referred to as catalyst components), the improvement which comprises subjecting a part or the whole of the catalyst components to polymerization treatment with a small amount of an .alpha.-olefin, at least in the coexistence of the solid product (II) and (OAl), in the combination of the catalyst components to obtain a preactivated catalyst, and subjecting .alpha.-olefin(s) to gas phase polymerization or bulk or slurry polymerization followed by gas phase polymerization, using the catalyst.

    摘要翻译: 提供了即使在气相聚合的情况下也以长时间稳定的方式生产具有较高产率的高品质α-烯烃聚合物的方法。 在α-烯烃聚合物的制造方法中,包括使三价金属卤化物与二价金属化合物反应得到固体产物(I); 使该产物与至少一种电子给体(ED)和至少一种电子受体(EA)反应一次至10次,此时使用TiCl 4至少一次作为(EA)获得固体产物(II) ; 将该产物与有机铝化合物(OAl)和(ED)(这三种被称为催化剂组分)组合,其改进包括使部分或全部催化剂组分用少量的α进行聚合处理 至少在固体产物(II)和(OAl)共存的情况下,在催化剂组分的组合中获得预活化的催化剂,并使α-烯烃进行气相聚合或本体或淤浆聚合 然后使用催化剂进行气相聚合。

    Process for producing .alpha.-olefin polymers
    12.
    发明授权
    Process for producing .alpha.-olefin polymers 失效
    制备α-烯烃聚合物的方法

    公开(公告)号:US4309521A

    公开(公告)日:1982-01-05

    申请号:US149684

    申请日:1980-05-14

    摘要: A process for producing .alpha.-olefin polymers is provided which comprises:reacting an organoaluminum compound (A.sub.1) with an electron donor (B.sub.1) to obtain a reaction product (I);reacting (I) with TiCl.sub.4 to obtain a solid product (II);reacting (II) with an electron donor (B.sub.2) and an electron acceptor to obtain a solid product (III);combining (III) with an organoaluminum compound (A.sub.2) and a reaction product (G) of an organoaluminum (A.sub.3) with an electron donor (B.sub.3) ((III), (A.sub.2) and (G) being referred to as catalyst components), and in this combination, subjecting a part or the whole of the catalyst components to polymerization treatment with an .alpha.-olefin at least in the presence of (III) and said (A.sub.2) to obtain a preliminarily activated catalyst;andpolymerizing an .alpha.-olefin in the presence of the catalyst. According to this process, even in the case of gas phase polymerization, the resulting polymer has a uniform particle size; the catalyst employed has not only a high stability but also a high activity whereby the advantages of gas phase polymerization can be fully exhibited; and further it is possible to easily control the stereoregularity of polymer.

    摘要翻译: 提供了一种制备α-烯烃聚合物的方法,其包括:使有机铝化合物(A1)与电子给体(B1)反应得到反应产物(I); (I)与TiCl4反应得到固体产物(II); 使(II)与电子给体(B2)和电子受体反应得到固体产物(III); 将(III)与有机铝化合物(A2)和有机铝(A3)与电子给体(B3)((III),(A2)和(G))的反应产物(G)称为催化剂组分) ,并且在这种组合中,至少在(III)和(A2)的存在下,用α-烯烃使一部分或全部催化剂组分进行聚合处理,得到预活化的催化剂; 并在催化剂存在下聚合α-烯烃。 根据该方法,即使在气相聚合的情况下,所得聚合物也具有均匀的粒径; 所使用的催化剂不仅具有高稳定性,而且具有高活性,从而可充分发挥气相聚合的优点; 并且还可以容易地控制聚合物的立构规整性。

    Metal-clad laminates and method for producing same
    14.
    发明授权
    Metal-clad laminates and method for producing same 失效
    金属覆层压板及其制造方法

    公开(公告)号:US5300364A

    公开(公告)日:1994-04-05

    申请号:US849416

    申请日:1992-04-29

    摘要: The present invention provides a flexible metal-clad laminate obtained by directly applying a polyimide precursor to a metallic conductive foil, and then drying, heating and curing the precursor to form a polyimide film, this flexible metal-clad laminate being characterized in that the polyimide film is composed of two or more polyimide layers, the linear thermal expansion coefficient of at least one of the second and later polyimide layers is larger than that of the first layer brought into contact with the metallic conductive foil, and the requirements of the following formulae are met:3.0 t.sub.n and ##EQU1## wherein t.sub.n is the thickness (.mu.m) of the outermost layer (the nth layer) of the polyimide layers, t.sub.n-1 is the thickness (.mu.m) of the film comprising the first layer to the (n-1)th layer of the polyimide layers, and Q.sub.n-1 is a double value (cm) of the curvature radius of the curl of the film comprising the first layer to the (n-1)th layer of the polyimide layers and Rz is the average surface roughness (.mu.m) of the metallic conductive foil. This board does not curl immediately after curing, and the curl does not occur even after the formation of a circuit by etching.

    摘要翻译: PCT No.PCT / JP91 / 01176 Sec。 一九九二年四月二十九日 102(e)日期1992年4月29日PCT 1991年9月3日PCT PCT。 出版物WO92 / 0481100 本发明提供了一种柔性金属包覆层压板,其通过将聚酰亚胺前体直接施加到金属导电箔上,然后干燥,加热和固化前体以形成聚酰亚胺膜,该柔性金属包层 其特征在于,所述聚酰亚胺膜由两层以上的聚酰亚胺层构成,所述第二层和后述的聚酰亚胺层中的至少一层的线性热膨胀系数大于与所述金属导电箔接触的所述第一层的线性热膨胀系数, 满足以下公式的要求:3.0 tn和tn-1> tn和(*化学结构*)其中tn是((my)m) 聚酰亚胺层的最外层(第n层)tn-1是包含第一层至第(n-1)层聚酰亚胺层的膜的厚度((my)m),Qn-1 是包括第一个1a的膜的卷曲的曲率半径的双重值(cm) 对于第(n-1)层的聚酰亚胺层,Rz是金属导电箔的平均表面粗糙度((my)m)。 该板在固化后不会立即卷曲,即使在通过蚀刻形成电路之后也不会发生卷曲。

    Adhesive polyimide film
    17.
    发明授权
    Adhesive polyimide film 失效
    粘合聚酰亚胺薄膜

    公开(公告)号:US5300627A

    公开(公告)日:1994-04-05

    申请号:US944968

    申请日:1992-09-15

    摘要: A silicon-modified, adhesive polyimide film composed mainly of the repetition units of the formula (I) and a process for producing a polyimide film composite product using the above film are provided, the formula (I) being ##STR1## the above process for producing a polyimide film composite product comprising subjecting the above-silicon-modified polyimide film to contact-bonding on heating to a material to be adhered, at an ultimate curing temperature of 130.degree.-230.degree. C.The above polyimide film is highly adhesive and heat-resistant in spite of heating at a relatively low temperature.

    摘要翻译: 提供主要由式(I)的重复单元组成的硅改性粘合聚酰亚胺膜和使用上述膜制备聚酰亚胺膜复合产品的方法,式(I)为(*化学结构*)( (II)(*化学结构*)(III) - (CH2)s- + BL,4或(IV)(*化学结构(I)其中L 1为-O-或-CO-R 3表示(* CHEMICAL STRUCTURE *) *)(V)(S:1-4),(SILO)为TR,29(*化学结构*)(VI)(R5:1-6C烷基,苯基或烷基取代的苯基醚7-12C; m:1 (II)可以与R 1相同,R 3可以相同或不同,R 3可以相同或不同, (*化学结构*)(VIII)(*化学结构*)(Ⅸ)上述过程为 制备聚酰亚胺膜复合产品,其包括在最终固化温度为130℃下对上述硅改性的聚酰亚胺膜在加热时对待粘合材料进行接触接触 -200℃。上述聚酰亚胺膜尽管在相对低的温度下加热而具有高粘合性和耐热性。

    Polyamide having a low elastic modulus and a process for producing the
same
    18.
    发明授权
    Polyamide having a low elastic modulus and a process for producing the same 失效
    具有低弹性模量的聚酰胺及其制造方法

    公开(公告)号:US4981940A

    公开(公告)日:1991-01-01

    申请号:US432434

    申请日:1989-11-06

    IPC分类号: C08G73/10 C08G77/455

    摘要: A polyimide having a low elastic modulus and also superior heat resistance and mechanical characteristics and soluble in solvents and a process for producing the same are provided,which polyimide comprises as main components, 60 to 99% by mol of repetition units of the formula (I) and 1 to 40% by mol of repetition units of the formula (II) ##STR1## wherein Ar is a tetravalent aromatic group; X and Y are at least one group bonded to phenyl group at o-position relative to N atom and selected from 1-4C alkyl, CO group or OH group; R.sup.1 is a 3-5C divalent alkyl or phenylene; R.sup.2 is 4 or less C alkyl or phenyl; l and m are each 1 to 4; and n is 20 to 300, andwhich polyimide is produced by reacting diamino compounds consisting of 60 to 99% by mol of an aromatic diamine of the formula (V) and 1 to 40% by mol of a silicone diamine of the formula (VI), with an aromatic tetracarboxylic acid dianhydride of the formula (IV) in an organic polar solvent at 20.degree.-250.degree. C., ##STR2## wherein Ar, X, Y, R.sup.1, l, m and n are each as defined above.

    Process for producing molded articles of polyimide precursor
    19.
    发明授权
    Process for producing molded articles of polyimide precursor 失效
    生产聚酰亚胺前体成型体的方法

    公开(公告)号:US5290497A

    公开(公告)日:1994-03-01

    申请号:US969976

    申请日:1992-11-02

    IPC分类号: C08G73/10 C08J3/09 B29C47/78

    摘要: The present invention provides a process for producing molded articles of a polyimide precursor by a use of a usual extrusion technique, and physical properties of polyimide products prepared by the heat treatment of the molded articles of the polyimide precursor at 400.degree. C. are excellent. This process is characterized by drying a solid obtained by pouring a dilute solution of a polyimide precursor including an aromatic tetracarboxylic acid component and an aromatic diamine component 1 into a liquid in which the precursor is only poorly soluble to obtain a dry solid having a polyimide precursor concentration of 50-70% by weight, and then extruding this dry solid at 80.degree.-130.degree. C.

    摘要翻译: 本发明提供了通过使用通常的挤出技术制造聚酰亚胺前体的模制品的方法,并且通过聚酰亚胺前体的模塑制品在400℃下热处理制备的聚酰亚胺产品的物理性能是优异的。 该方法的特征在于将通过将包含芳族四羧酸组分和芳族二胺组分1的聚酰亚胺前体的稀溶液倒入其中前体仅溶解性差的液体得到的固体,得到具有聚酰亚胺前体的干固体 浓度为50-70重量%,然后将该干燥固体在80℃-130℃下挤出。