Process for producing a modified polypropylene and a molded product
    12.
    发明授权
    Process for producing a modified polypropylene and a molded product 失效
    生产改性聚丙烯和模塑制品的方法

    公开(公告)号:US5560886A

    公开(公告)日:1996-10-01

    申请号:US425554

    申请日:1995-04-20

    摘要: A process for producing a modified polypropylene having a very high melt tension and superior stiffness and moldability, and a molded product obtained by using the modified polypropylene are provided.which process includes adding 0.05 to 10 millimols of a cross-linking auxiliary to 100 g of a linear polypropylene, mixing them, irradiating ionizing radiations to the mixture so as to give an absorbed dosage of 1 to 20 kGy, and successively heat-treating the resulting material at 80.degree. to 350.degree. C.,which modified polypropylene has(A) a degree of branching of substantially 1,(B) a relationship between its melt tension (MS) at 230.degree. C. and its intrinsic viscosity (.eta.) measured in tetralin at 230.degree. C. expressed by an inequalitylog (MS)>4.24.times.log [.eta.]-0.915, and(C) a percentage of extraction residue in boiling xylene of 1% by weight or less.

    摘要翻译: 提供了具有非常高的熔融张力和优异的刚度和成型性的改性聚丙烯的制造方法和使用改性聚丙烯得到的成型体。 该方法包括向100g线型聚丙烯中加入0.05-10毫摩尔的交联助剂,混合它们,向混合物中照射电离辐射,以得到1至20kGy的吸收剂量,并依次热处理 该改性聚丙烯具有(A)基本上为1的支化度,(B)230℃下的熔体张力(MS)与其特性粘度(η)之间的关系, 在不饱和度(MS)> 4.24xlogη-0.915表示的230℃下测量的四氢化萘,(C)沸腾二甲苯中提取残余物的百分比为1重量%以下。

    Polypropylene having a high melt-tensile strength, a process for
producing the same and a molded product from the same
    14.
    发明授权
    Polypropylene having a high melt-tensile strength, a process for producing the same and a molded product from the same 失效
    具有高熔体拉伸强度的聚丙烯,其制造方法和来自其的模塑产品

    公开(公告)号:US5416169A

    公开(公告)日:1995-05-16

    申请号:US147582

    申请日:1993-11-05

    摘要: A linear, crystalline polypropylene having a branching coefficient of substantially 1, and a specified relation between melt-tensile strength and intrinsic viscosity, a specified relation between crystallization temperature and melting point, a boiling xylene-extraction residue % of 1 wt. % or less and if necessary, a specified ratio of weight average M.W./number average M.W.; a molded product from the above polypropylene; and a process for producing a polypropylene having the above polypropylene blended with di-2-ethylhexyl peroxydicarbonate, are provided, the above polypropylenes having a very high melt-tensile strength and crystallization temperature and also superior stiffness and moldability, to thereby broaden the restricted application fields of conventional polypropylene.

    摘要翻译: 分支系数基本为1的线性结晶聚丙烯,熔体拉伸强度和特性粘度之间的规定关系,结晶温度和熔点之间的规定关系,沸点二甲苯提取残余物%为1重量% %或更小,如果需要,指定的重量平均比例M.W./number平均M.W。 来自上述聚丙烯的成型体; 提供了具有上述聚丙烯与上述二-2-乙基己基过氧化二碳酸酯共混的聚丙烯的方法,上述聚丙烯具有非常高的熔体拉伸强度和结晶温度,并且还具有优异的刚度和成型性,从而扩大了受限应用 常规聚丙烯的领域。

    Process for making high stereoregular polypropylenes
    17.
    发明授权
    Process for making high stereoregular polypropylenes 失效
    制备高立体规则聚丙烯的方法

    公开(公告)号:US6096843A

    公开(公告)日:2000-08-01

    申请号:US858498

    申请日:1997-05-19

    摘要: A process for the production of a high stereoregular polypropylene wherein(a) an isotactic pentad (m m m m) is 0.950 to 0.995,(b) a syndiotactic pentad (r r r r) is 0 to 0.01,(c) a different bond due to 2,1- and 1,3-insertions of propylene monomer is 0 to 0.3 mol %,(d) an absence of a terminal double bond is confirmed,(e) a weight average molecular weight (Mw) is 50,000 to 1,000,000 and(f) a ratio (Mw/Mn) of the weight average molecular weight (Mw) to a number average molecular weight (Mn) is 1.5 to 3.8, (a) to (d) being determined from .sup.13 C NMR spectra, comprising polymerizing propylene in the presence of hydrogen using a catalyst comprising a chiral transition metal compound and an aluminoxane, the transition metal compound being represented by the formula of Q(C.sub.5 H.sub.4-m R.sup.1.sub.m) (C.sub.5 H.sub.4-n R.sup.2.sub.n)MXY wherein (C.sub.5 H.sub.4-m R.sup.1.sub.m) and (C.sub.5 H.sub.4-n R.sup.2.sub.n) represent a substituted cyclopentadienyl group; m and n are an integer of 1 to 3; R.sup.1 and R.sup.2 may be the same or different and each represents an alkyl group of 1 to 20 carbons; Q is a group capable of crosslinking (C.sub.5 H.sub.4-m R.sup.1.sub.m) and (C.sub.5 H.sub.4-n R.sup.2.sub.n) and represents a divalent, hydrocarbyl radical, an unsubstituted silylene group or a hydrocarbyl-substituted silylene group; M represents a transition metal selected from the group consisting of titanium, zirconium, and hafnium; X and Y may be the same or different and each represents a hydrogen, a halogen or a hydrocarbyl radical, and wherein said polymerization is performed by a slurry polymerization using an aliphatic hydrocarbon as a solvent or by a bulk polymerization using propylene as a solvent.

    摘要翻译: 一种制备高立构规则聚丙烯的方法,其中(a)全同立构五单元组(mmmm)为0.950-0.995,(b)间同立构五单元组(rrrr)为0至0.01,(c)由于2,1 - 和丙烯单体的1,3-插入为0〜0.3摩尔%,(d)不存在末端双键,(e)重均分子量(Mw)为50,000〜1,000,000,(f)a 重均分子量(Mw)与数均分子量(Mn)之比(Mw / Mn)为1.5至3.8,(a)至(d)由13 C NMR谱确定,包括在存在下聚合丙烯 使用包含手性过渡金属化合物和铝氧烷的催化剂的氢,所述过渡金属化合物由下式Q(C5H4-mR1m)(C5H4-nR2n)MXY表示,其中(C5H4-mR1m)和(C5H4-nR2n)表示 取代的环戊二烯基; m和n为1〜3的整数, R 1和R 2可以相同或不同,各自表示1〜20个碳的烷基; Q是能够交联的基团(C5H4-mR1m)和(C5H4-nR2n),代表二价烃基,未取代的亚甲硅烷基或烃基取代的亚甲硅烷基; M表示选自钛,锆和铪的过渡金属; X和Y可以相同或不同,各自表示氢,卤素或烃基,并且其中所述聚合通过使用脂族烃作为溶剂的淤浆聚合或通过使用丙烯作为溶剂的本体聚合进行。

    Propylene-ethylene copolymers processes for the production thereof and
molded articles made therefrom
    18.
    发明授权
    Propylene-ethylene copolymers processes for the production thereof and molded articles made therefrom 失效
    丙烯 - 乙烯共聚物的制备方法和由其制成的模塑制品

    公开(公告)号:US6156856A

    公开(公告)日:2000-12-05

    申请号:US142033

    申请日:1998-09-01

    摘要: There are provided propylene-ethylene copolymers from which there are made molded articles having excellent heat resistance and films having both low temperature heat-sealing characteristics and stiffness, processes for the production thereof and molded articles. The propylene-ethylene copolymers contain 0.01-15 mol % of an ethylene unit and are characterized by that in the chain structure determined by NMR, triad (PEP), triad (EEE) and a ratio (N.sub..alpha..beta.) of all .alpha., .beta.-methylene carbons to all propylene units are in the specified range, a weight average molecular weight is 50,000-1,500,000 and a molecular weight distribution (Mw/Mn) is 1.2-3.8. The copolymers can be produced by copolymerizing ethylene and propylene in the presence of a catalyst in which the specified chiral transition metal compound (metallocene) and aluminoxane are combined.

    摘要翻译: PCT No.PCT / JP97 / 00038 Sec。 371日期:1998年9月1日 102(e)1998年9月1日PCT PCT 1997年1月10日PCT公布。 出版物WO98 / 30614 PCT 日期1998年7月16日提供丙烯 - 乙烯共聚物,其中制备具有优异耐热性的模制品和具有低温热封特性和刚度的薄膜,其制备方法和模塑制品。 丙烯 - 乙烯共聚物含有0.01-15mol%的乙烯单元,其特征在于在通过NMR,三单元组(PEP),三单元组(EEE)和所有α,β的比率(Nαβ)测定的链结构中 所有丙烯单元的亚甲基碳数均在规定范围内,重均分子量为50,000-1,500,000,分子量分布(Mw / Mn)为1.2-3.8。 共聚物可以通过在其中组合指定的手性过渡金属化合物(金属茂)和铝氧烷的催化剂存在下共聚合乙烯和丙烯来制备。

    IGBT AND METHOD OF MANUFACTURING THE SAME
    19.
    发明申请
    IGBT AND METHOD OF MANUFACTURING THE SAME 有权
    IGBT及其制造方法

    公开(公告)号:US20140231866A1

    公开(公告)日:2014-08-21

    申请号:US14347897

    申请日:2011-09-28

    IPC分类号: H01L29/739 H01L29/66

    摘要: An IGBT has an emitter region, a top body region that is formed below the emitter region, a floating region that is formed below the top body region, a bottom body region that is formed below the floating region, a trench, a gate insulating film that covers an inner face of the trench, and a gate electrode that is arranged inside the trench. When a distribution of a concentration of p-type impurities in the top body region and the floating region, which are located below the emitter region, is viewed along a thickness direction of a semiconductor substrate, the concentration of the p-type impurities decreases as a downward distance increases from an upper end of the top body region that is located below the emitter region, and assumes a local minimum value at a predetermined depth in the floating region.

    摘要翻译: IGBT具有发射极区域,形成在发射极区域下方的顶部主体区域,形成在顶部主体区域下方的浮动区域,形成在浮动区域下方的底部区域,沟槽,栅极绝缘膜 覆盖沟槽的内表面和布置在沟槽内的栅电极。 当沿着半导体衬底的厚度方向观察位于发射极区域下方的顶体区域和浮动区域中的p型杂质浓度的分布时,p型杂质的浓度随着 向下的距离从位于发射极区域下方的顶部主体区域的上端增加,并且在浮动区域中在预定深度处呈现局部最小值。

    Liquid sealed vibration isolating device
    20.
    发明授权
    Liquid sealed vibration isolating device 有权
    液体密封隔振装置

    公开(公告)号:US08794606B2

    公开(公告)日:2014-08-05

    申请号:US12673689

    申请日:2008-08-26

    IPC分类号: F16F5/00

    CPC分类号: F16F13/106

    摘要: A liquid sealed vibration isolating device has an elastically movable diaphragm capable of preventing elastic deformation of a relief valve to realize high damping while preventing a cavitation phenomenon. The relief valve is provided in the elastic movable diaphragm arranged in a partition member in order to open and close a leak passage so as to prevent occurrence of the cavitation phenomenon. The relief valve is integrally formed with a fixing portion of the elastic movable diaphragm. There is provided an upwardly open concavity that the relief valve faces. The relief valve is made thicker and provided with an opening and closing adjustment groove at a basal portion of its inclined wall. The opening and closing adjustment groove is formed with a locally thin bending portion functioning as a starting point of bending in an opening and closing operation of the relief valve.

    摘要翻译: 液体密封隔振装置具有能够防止安全阀的弹性变形以防止气蚀现象而实现高阻尼的弹性移动隔膜。 安全阀设置在布置在分隔构件中的弹性可动隔膜中,以便打开和关闭泄漏通道,以防止发生气蚀现象。 安全阀与弹性活动隔膜的固定部分整体形成。 提供了安全阀面对的向上开口的凹陷。 安全阀制成较厚,并在其倾斜壁的基部设置有开闭调节槽。 开关调节槽形成有局部薄的弯曲部,其作为安全阀的打开和关闭操作中的弯曲起点。