Phenol-terminated oxyalkylated or (cyclo)aliphatic diglycidyl ethers
    15.
    发明授权
    Phenol-terminated oxyalkylated or (cyclo)aliphatic diglycidyl ethers 失效
    苯酚封端的烷氧基化或(环)脂族二缩水甘油醚

    公开(公告)号:US5276071A

    公开(公告)日:1994-01-04

    申请号:US15505

    申请日:1993-02-09

    CPC classification number: C08G59/14 C08G59/066 C08G59/226 C09D5/4434

    Abstract: Cationic advanced resins are obtained by (I) reacting a composition comprising (A) an advanced epoxy resin composition comprising the product resulting from reacting a composition comprising (1) an aromatic hydroxyl-containing product resulting from reacting a composition comprising (a) at least one diglycidyl ether of (i) an oxyalkylated aromatic diol, or ii) at least one compound having two hydroxyl groups per molecule in which the hydroxyl groups are attached to an aliphatic or cycloaliphatic carbon atom and which compound is free of aromatic rings; or (iii) a combination of (i) and (ii); and (iv) optionally a diglycidyl ether compound different from (i) and (ii); and (b) at least one compound containing two aromatic hydroxyl groups per molecule; (2) at least one diglycidyl ether of a compound containing two aromatic groups per molecule; (3) optionally, one or more compounds containing two aromatic hydroxyl groups per molecule; and (4) optionally, a monofunctional capping agent; with (B) a nucleophilic compound; and (II) adding an organic acid and water at at least one point during the preparation of the cationic resin. The cationic advanced resins are useful in coating compositions.

    Abstract translation: 阳离子高级树脂是通过以下方法获得的:(I)包含(A)包含由下述组分组成的高级环氧树脂组合物的高级环氧树脂组合物的组合物,所述组合物是使包含(1)含芳族羟基的产物与 (i)烷氧基化芳族二醇的一种二缩水甘油醚,或ii)至少一种每分子具有两个羟基的化合物,其中羟基连接到脂族或脂环族碳原子上,该化合物不含芳环; 或(iii)(i)和(ii)的组合; 和(iv)任选的不同于(i)和(ii)的二缩水甘油醚化合物; 和(b)至少一种每分子含有两个芳族羟基的化合物; (2)每分子含有两个芳族基团的化合物的至少一种二缩水甘油醚; (3)任选地,每个分子含有一个或多个含有两个芳族羟基的化合物; 和(4)任选的单官能封端剂; 与(B)亲核化合物; 和(II)在制备阳离子树脂期间至少一点加入有机酸和水。 阳离子高级树脂可用于涂料组合物。

    Cationic, advanced epoxy resin compositions incorporating glycidyl
ethers of oxyalkylated aromatic or cycloaliphatic diols
    16.
    发明授权
    Cationic, advanced epoxy resin compositions incorporating glycidyl ethers of oxyalkylated aromatic or cycloaliphatic diols 失效
    阳离子,先进的环氧树脂组合物,其包含烷氧基化芳族或脂环族二醇的缩水甘油醚

    公开(公告)号:US5248741A

    公开(公告)日:1993-09-28

    申请号:US977591

    申请日:1992-11-17

    CPC classification number: C09D5/4434 C08G59/066 C08G59/14 C08G59/226

    Abstract: An advanced epoxy cationic resin useful as an electrodeposition coating having a charge density of from 0.2 to 0.6 milliequivalent of cationic charge per gram of resin is prepared by reacting in the presence of a suitable catalyst (A) a composition comprising (1) at least one diglycidyl ether of (a) an oxyalkylated aromatic diol or (b) an oxyalkylated cycloaliphatic diol or (c) certain oxyalkylated aliphatic diols and (2) at least one diglycidyl ether of a dihydric phenol with (B) at least one dihydric phenol and optionally (C) a monofunctional capping agent. Components (A-1) and (A-2) are employed in quantities such that from 10 to 75 weight percent of the diglycidyl ethers contained in component (A) are contributed by component (A-1), and from 25 to 90 weight percent of such glycidyl ethers are contributed by component (A-2). Components (A) and (B) are employed in such quantities that the resultant epoxy resin has an average epoxide equivalent weight of from 350 to 10,000. The terminal oxirane groups in the thus formed advanced epoxy resin are converted to cationic groups by reacting the resin with a nucleophilic compound and adding an organic acid and water.

    Abstract translation: 可用作电沉积涂层的先进的环氧阳离子树脂,其电荷密度为每克树脂阳离子电荷的0.2至0.6毫当量,在合适的催化剂(A)存在下,通过使组合物反应,所述组合物包含(1)至少一种 (a)烷氧基化芳族二醇的二缩水甘油醚或(b)烷氧基化脂环族二醇或(c)某些烷氧基化脂族二醇和(2)至少一种二元酚与(B)至少一种二元酚的任选的二缩水甘油醚 (C)单官能封端剂。 组分(A-1)和(A-2)的用量使得组分(A)中包含的10至75重量%的二缩水甘油醚由组分(A-1)和25至90重量份 这种缩水甘油醚的百分比由组分(A-2)贡献。 组分(A)和(B)的用量使所得环氧树脂的平均环氧当量为350至10,000。 如此形成的先进环氧树脂中的末端环氧乙烷基团通过使树脂与亲核化合物反应并加入有机酸和水而转化为阳离子基团。

    Pipe joint compression seal
    18.
    发明授权
    Pipe joint compression seal 失效
    管接头压缩密封

    公开(公告)号:US4909519A

    公开(公告)日:1990-03-20

    申请号:US196286

    申请日:1988-05-20

    CPC classification number: F16L21/035 Y10S277/91

    Abstract: A pressure resistant system for joining concrete pipes in an end to end relationship is disclosed. The first pipe terminates in a bell end and the second pipe terminates in a spigot end with the spigot end surrounded by a seal member and the inner surface of the bell also surrounded by a seal member. Each seal member has internal ribs which extend into and are embedded in the concrete pipe. The spigot end sealing ring includes an internal flap extending substantially perpendicular thereto across an internal offset face of the spigot and a lip extending across a portion of the end face. A rib of reduced length is disposed adjacent the lip and midway between the lip and the flap. In one embodiment the spigot and sealing ring defines a concave groove for receiving an O-ring seal, and in another embodiment the concave groove is replaced by an integral convex seal portion.

    Abstract translation: 公开了一种以端对端关系连接混凝土管的耐压系统。 第一管终止于钟形端,第二管终止于插口端,其端盖由密封构件包围,并且钟的内表面也被密封构件包围。 每个密封件具有延伸到混凝土管中并嵌入在混凝土管中的内部肋。 插口端密封环包括其内部翼片,其基本垂直于其延伸穿过插口的内部偏移面,以及唇缘延伸穿过端面的一部分。 减小长度的肋设置在唇缘附近并且在唇缘和瓣之间的中间。 在一个实施例中,插口和密封环限定用于接收O形环密封件的凹槽,在另一实施例中,凹槽由整体的凸形密封部分代替。

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