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公开(公告)号:US5306787A
公开(公告)日:1994-04-26
申请号:US797033
申请日:1991-11-25
CPC分类号: C08G63/16 , C08G18/4211 , C08G18/4238
摘要: A method for producing a high molecular weight saturated polyester comprising adding to a saturated polyester with the terminal group being substantially hydroxyl group, having a number average molecular weight of 5,000 or more and being in the molten state, diisocyanate containing isocyanate group the amount of which corresponds to 1/10 to 2 equivalents of the amount of the hydroxyl group.
摘要翻译: 一种高分子量饱和聚酯的制造方法,其特征在于,向饱和聚酯中加入数均分子量为5000以上且处于熔融状态的端基基本上为羟基的饱和聚酯,其含有异氰酸酯基的二异氰酸酯的量为 相当于羟基量的1/10〜2当量。
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公开(公告)号:US5371172A
公开(公告)日:1994-12-06
申请号:US856727
申请日:1992-03-24
申请人: Eiichiro Takiyama , Isamu Niikura , Takao Hokari
发明人: Eiichiro Takiyama , Isamu Niikura , Takao Hokari
IPC分类号: C08G63/52
CPC分类号: C08G63/52
摘要: An unsaturated alkyd having a number-average molecular weight of at least 5000 and having terminal carboxyl groups is provided by esterification and then deglycolization reaction of an .alpha.,.beta.-unsaturated polybasic acid or an polyhydroxy alcohol followed by reaction with polybasic acid anhydride to substitute more than 10 mole % of terminal hydroxyl groups with carboxyl groups. High molecular weight unsaturated polyester resin is also provided by formulating the unsaturated alkyd with a copolymerizable monomer such as styrene. The polyester resin can be widely used in a various applications by employing the excellent physical properties thereof.
摘要翻译: 具有数均分子量至少为5000并具有末端羧基的不饱和醇酸树脂通过酯化反应提供,然后通过α,β-不饱和多元酸或多羟基醇的脱醇反应,随后与多元酸酐反应以代替更多 具有10摩尔%以上具有羧基的末端羟基。 高分子量不饱和聚酯树脂还通过配制不饱和醇酸树脂与可共聚单体如苯乙烯来提供。 聚酯树脂可以通过使用其优异的物理性质而广泛用于各种应用中。
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公开(公告)号:US4820176A
公开(公告)日:1989-04-11
申请号:US129778
申请日:1987-12-07
申请人: Isamu Niikura
发明人: Isamu Niikura
IPC分类号: H01R13/635 , H01R31/06
CPC分类号: H01R13/635 , H01R31/06
摘要: An electric power supply connector such as a plug or a plug adapter for supplying a power source voltage to an electrical appliance. The connector has conductive connecting legs of a metallic material having high electrical conductivity and formed to be projected from or recessed into the surface of a main part of the connector. An actuating member is resiliently urged to extend from the inside to the outside of the connector so as to be able to project from a surface of the main part of the connector. The connector also includes a locking mechanism including a locking groove formed in a wall of the actuating means and a portion of an interlocking member which is movable in the direction perpendicular to the actuating member and urged by a spring, the portion of the interlocking member being engageable with the locking groove by the force of the spring then the, the locking means being adapted to lock, through the engagement between the portion of the interlocking member and the locking groove, the actuating member in a retracted state where the end of the actuating member is held near the surface of the main body of the connector. The connector further has an unlocking mechanism for unlocking the actuating member from the retracted state by urging the interlocking member against the force of the spring, by a manual force or by an electromagnetic force.
摘要翻译: 诸如插头或插头适配器的电源连接器,用于向电器提供电源电压。 连接器具有导电连接腿,金属材料具有高导电性,并且形成为从连接器的主要部分的表面突出或凹入其中。 致动构件被弹性地推动以从连接器的内部延伸到外部,以便能够从连接器的主要部分的表面突出。 连接器还包括锁定机构,其包括形成在致动装置的壁中的锁定槽和互锁构件的一部分,其可在垂直于致动构件的方向上移动并由弹簧推动,所述互锁构件的部分为 通过弹簧的力与锁定槽接合,锁定装置适于通过互锁构件的部分和锁定槽之间的接合来锁定致动构件处于缩回状态,其中致动器的端部 构件被保持在连接器主体的表面附近。 连接器还具有解锁机构,用于通过手动力或电磁力推动互锁构件抵抗弹簧的力而使致动构件从缩回状态解锁。
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