摘要:
The object of the present invention is to provide a molding thermoplastic resin material giving resin mold whose quality and value are substantially equal to original resin mold even in a case where said resin mold is recycled. To attain said object, olefin group rubber and/or acrylic rubber to which monomer(s) being the same or similar monomer as (to) monomer(s) composing said molding thermoplastic resin material is(are) graft-copolymerized to give said rubbers compatibility with said molding thermoplastic resin material is(are) added in said molding thermoplastic resin material to improve said equal quality recycling property (property that quality and value are substantially equal to original thermoplastic resin mold even in a case where said thermoplastic resin mold is recycled). Said olefin group rubber and/or said acrylic rubber has(have) excellent thermal stability, heat-resistance, ozone resistance, oxidation resistance, and durability and has(have) effect on improvement of impact resistance for said thermoplastic resin material which is substantially immutable against heat history affected by repeated recycles and said molding thermoplastic resin material of the present invention can be used as a resin material of equal quality resin mold whose quality and value are substantially equal to resin mold using virgin resin material even in a case where said resin mold is recycled.
摘要:
An ink-jet printer includes a rotary drum 10, having a dielectric peripheral surface 11, for rotating at a constant speed, a sheet loader 90 for loading a sheet to the rotary drum 10, a sheet holding system for causing the sheet to be held on the peripheral surface 11 of the rotary drum 10, and a print head section 200 for printing an image on the sheet held on the peripheral surface 11 of the rotary drum 10 by jetting ink to the sheet while the rotary drum 10 makes a predetermined number of rotations. Particularly, the sheet holding system includes a charging section 20 and a supplementary charger section 26. The charging section 20 charges the peripheral surface 11 of the rotary drum 10 on an upstream side of the loading point where the leading end of the sheet loaded by the sheet loader 90 contacts the peripheral surface 11 of the rotary drum 10. The supplementary charger section 26 charges the sheet to supplement the electrostatic attraction force attenuated during the rotation of the rotary drum 10.
摘要:
An electrode material includes a sulfide compound containing a tetrazole ring as an active substance. The secondary battery using such a material provides an extremely high energy density.
摘要:
There is provided a lead frame including an outer frame, a die pad on which a semiconductor device is to be mounted, a plurality of outer leads extending from the outer frame to the die pad, a dam bar connected at opposite ends thereof to the outer frame for connecting the outer leads to one another for prevention of resin overflow, and a support lead extending obliquely to the dam bar for connecting the die pad to the outer frame. The outer frame is formed beyond an end of the dam bar with an opening extending in a direction making an angle with a direction in which the dam bar longitudinally extends so that there is formed an elastically deformable portion between the opening and an end of the dam bar, the opening having a length covering at least a width of the dam bar. When there is generated a stress because of shrinkage of resin with which a semiconductor device is sealed, the elastically deformable portion is first deformed by absorbing a stress to thereby prevent the stress from spreading further to the dam bar. Thus, it is possible to prevent irregular bending of outer leads connected by the dam bar with each other. As a result, higher accuracy is expected with respect to a position of outer leads after a semiconductor device is sealed with resin.
摘要:
A plurality of slits are formed in a die pad of a lead-frame for mounting a semiconductor chip, and are arranged in such a manner as to nearly equalize the length of peripheral sub-areas of the die pad uncovered with the semiconductor chip, thereby effectively absorbing a shrinkage and an elongation due to a difference in thermal expansion coefficient among the die pad, the semiconductor chip and a plastic package hermetically sealing the semiconductor chip.
摘要:
A polyarylene sulfide resin composition having improved toughness and impact resistance is formed by 100 wt. parts of polyarylene sulfide and 0.5-50 wt. parts of a graft copolymer. The graft copolymer includes an olefin copolymer segment comprising .alpha.-olefin units and .alpha.,.beta.-unsaturated acid glycidyl ester units, and a grafting polymer segment comprising .alpha.,.beta.-unsaturated acid glycidyl ester units and chemically bonded to the olefin copolymer segment. The .alpha.-olefin is preferably ethylene. The .alpha.,.beta.-unsaturated acid glycidyl ester is preferably glycidyl acrylate or glycidyl methacrylate. The grafting polymer segment is preferably in the form of a copolymer of an .alpha.,.beta.-unsaturated acid glycidyl ester and a monoethylenically unsaturated monomer.
摘要:
An optical functional device includes a semiconductor substrate, an optical functional layer provided on said semiconductor substrate and selected from the group consisting of a light emitting layer, a light absorbing layer, and an optical waveguide layer. The optical functional layer has a multi-quantum well layer. Preferably, the semiconductor substrate is a nonplanar semiconductor substrate having a ridge and two grooves adjacent said ridge, said ridge having a ridge width of from 1 to 10 .mu.m, a ridge height of from 1 .mu.m to 5 .mu.m, and a gap distance of from 1 .mu.m to 10 .mu.m. Such an optical functional device can be fabricated by growing, on a nonplanar semiconductor substrate having a specified dimension of the ridge, a strained multi-quantum well layer by metalorganic vapor phase epitaxy. Integrated optical device or circuit preferably includes an optical functional device on the nonplanar semiconductor substrate of a specified range of ridge shape factors. An integrated optical device can be fabricated by combination of a plurality of optical functional devices having slightly different compositions and including a part of a strained multi-quantum well layer monolithically grown on a nonplanar semiconductor substrate.
摘要:
The disclosure describes a flame-resisting resin composition comprising:(A) 90 to 99.5% by weight of a polyarylene sulfide; and(B) 0.5 to 10% by weight of a graft copolymer composed of an olefinic copolymer (a) having 30 to 59% by weight (based on the weight of said graft copolymer) of an .alpha.-olefin repeating unit and a glycidyl ester residue repeating unit of an .alpha.,.beta.-unsaturated mono-carboxylic acid, and at least one of polymers (b) having the repeating unit represented by the following formula (I):said olefinic copolymer (a) being branched or crosslinked with at least one of the polymers (b), ##STR1## wherein R represents a hydrogen atom or a lower alkyl group having from 1 to about 6 carbon atoms, X represents a benzyl group, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --COOC.sub.4 H.sub.9, --COOCH.sub.2 CH(C.sub.2 H.sub.5)C.sub.4 H.sub.9, --CN, a phenyl group or a maleimide group.
摘要翻译:本发明描述了一种阻燃树脂组合物,其包含:(A)90至99.5重量%的聚芳硫醚; 和(B)0.5〜10重量%的由α-烯烃重复单元和缩水甘油酯的30〜59重量%(以所述接枝共聚物的重量计)的烯烃共聚物(a)组成的接枝共聚物 α,β-不饱和单羧酸的残基重复单元,以及具有由下式(I)表示的重复单元的聚合物(b)中的至少一种:所述烯烃共聚物(a)至少是支化或交联的 聚合物(b),其中R表示氢原子或具有1至约6个碳原子的低级烷基的聚合物(b),(I)之一,X表示苄基,-COOCH 3,-COOC 2 H 5,-COOC 4 H 9, COOCH 2 CH(C 2 H 5)C 4 H 9,-CN,苯基或马来酰亚胺基。
摘要:
A webbed bevel gear in which webs are formed of a minimal size so that the gear can be downsized, while also improving the mechanical strength of the gear. The webbed bevel gear is made so as to be capable of avoiding losses from the webs and so that the strength of the dedendum can be maintained by the webs, while the strength and the wear resistance of the dedendum and the tooth surface is further improved. The webbed bevel gears (2, 2a-2c) are constructed as follows: each of the webs is formed with a concave curved surface defined by the base cone so that it can connect the two adjacent teeth at the dedendum between the teeth at the radial end of the gear, the value obtained by dividing the height (h) of the webs in relation to the module (m) of the gear meets the equation 0.2.ltoreq.h/m.ltoreq.0.6, and the value obtained by dividing the width (w) of the webs along the generating line of the base cone by the width (W) of the gear along the generating line of the base pitch cone meets the equation 0.04.ltoreq.w/W.ltoreq.0.20. A surface treatment, such as carburizing and/or nitriding is performed in a state in which the webs are coated with a surface treatment inhibitor, or alternatively, the tooth surface and the dedendum, except for the webs, are coated with a hard layer formed of a super hard material.
摘要翻译:一种网状伞齿轮,其中腹板由最小尺寸形成,使得齿轮可以小型化,同时还提高齿轮的机械强度。 网状锥齿轮被制造成能够避免从腹板的损失,并且能够通过腹板来维持齿根的强度,同时进一步提高齿根和牙齿表面的强度和耐磨性。 网状锥齿轮(2,2a-2c)的构造如下:每个腹板形成有由基底锥体限定的凹形曲面,使得其能够在径向上的齿之间的齿根处连接两个相邻的齿 齿轮的端部,通过将腹板的高度(h)相对于齿轮的模块(m)分开而获得的值满足等式0.2 h / m 0.6,并且通过分割获得的值 沿着基底锥体的生成线的幅材的宽度(w)与齿轮沿着基座螺距锥的生成线的宽度(W)相符,满足公式0.04 / W /W≤0.20。 在网状物被表面处理抑制剂涂覆的状态下进行渗碳和/或氮化等表面处理,或者除了网状物之外,齿面和齿根也可以形成有硬质层 的超硬材料。
摘要:
Disclosed herein are a poly(arylene thioether-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone) segment having predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other, and (B) at least one poly(arylene thioether) segment having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone) segment (A) ranging from 0.05 to 5 by weight, (b) the number-average polymerization degree of the poly(arylene thioether) segment (B) being higher than 1 but lower than 10, and (c) said copolymer having a melt viscosity of 2-100,000 poises as measured at 350.degree. C. and a shear rate of 1,200/sec as well as a production process of the poly(arylene thioether-ketone) copolymer.