ABA type block copolymers
    1.
    发明授权
    ABA type block copolymers 失效
    ABA型嵌段共聚物

    公开(公告)号:US5314962A

    公开(公告)日:1994-05-24

    申请号:US83326

    申请日:1993-06-29

    CPC分类号: C08F293/00

    摘要: An acrylate is polymerized by the photo-decomposition of ##STR1## to make a polymeric intermediate containing dithiocarbamate groups at both its ends, and a hard polymer-forming monomer is polymerized by the photo-decomposition of this dithiocarbamate group-containing polymeric intermediate to form blocks of a polymer of said hard polymer-forming monomer on both sides of said polymeric intermediate, thereby forming an ABA type block copolymer.

    摘要翻译: 通过的光分解使丙烯酸酯聚合以制备在其两端含有二硫代氨基甲酸酯基团的聚合物中间体,并且形成硬聚合物的单体通过该含二硫代氨基甲酸酯基团的聚合物中间体的光分解聚合以形成 在所述聚合物中间体的两侧上形成所述硬聚合物形成单体的聚合物嵌段,由此形成ABA型嵌段共聚物。

    Contact lens article made of silicon- and fluorine-containing resin
    2.
    发明授权
    Contact lens article made of silicon- and fluorine-containing resin 失效
    由含硅和含氟树脂制成的隐形眼镜制品

    公开(公告)号:US4933406A

    公开(公告)日:1990-06-12

    申请号:US403484

    申请日:1989-09-06

    IPC分类号: C08F230/08 G02B1/04

    CPC分类号: G02B1/043 C08F230/08

    摘要: A contact lens article comprises a resin obtained by copolymerizing starting monomer components containing a silicon-containing compound (A) represented by the formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, X.sub.1 and X.sub.2 each represent a methyl group or ##STR2## l represents 0 or 1, m represents an integer of 1 to 3 and n and p each represent an integer of 0 to 3; a fluorine-containing compound (B) represented by the formula (II) of: ##STR3## wherein at least one of R.sub.2 and R.sub.3 represents a straight chain or branched chain fluoroalkyl group represented by --C.sub.h H.sub.k F.sub.2h+l-k in which h represents an integer of 2 to 18, k represents an integer of 1 to 2 multiplied by h and when one of R.sub.2 and R.sub.3 is --C.sub.h H.sub.k F.sub.2h+l-k, the other of R.sub.2 and R.sub.3 represents an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms; and a radical polymerizable vinyl monomer.

    摘要翻译: 隐形眼镜制品包括通过共聚包含由式表示的含硅化合物(A)的起始单体成分得到的树脂,其中R 1表示氢原子或甲基,X 1和X 2各自表示甲基 组或 l表示0或1,m表示1至3的整数,n和p各自表示0至3的整数; 由式(II)表示的含氟化合物(B):其中R 2和R 3中的至少一个表示由-ChHkF 2h + lk表示的直链或支链氟烷基,其中h表示 2〜18,k表示1〜2的整数乘以h,当R2和R3之一为-ChHkF2h + lk时,R2和R3中的另一个为碳原子数1〜12的烷基,烯基为2 至12个碳原子或具有3至12个碳原子的环烷基; 和可自由基聚合的乙烯基单体。

    Method of preparing a low density, nonflammable polyvinyl foam
composition
    3.
    发明授权
    Method of preparing a low density, nonflammable polyvinyl foam composition 失效
    制备低密度,不可燃聚乙烯泡沫组合物的方法

    公开(公告)号:US4477599A

    公开(公告)日:1984-10-16

    申请号:US439981

    申请日:1982-11-08

    摘要: A method of preparing a foamable polyvinyl system resin composition which renders a non-flammable, high strength to weight ratio foam product comprises, reacting at least 0.05 parts by weight of an organic radical initiator per 1 part by weight of polyvinyl system resin with the components consisting essentially of (a) at least one polyvinyl system resin (b) 2-100 parts by weight of at least one inorganic filler per 1 part by weight of polyvinyl system resin (c) an effective amount of at least one blowing agent.

    摘要翻译: 一种制备可发泡聚乙烯系树脂组合物的方法,其使得不燃的高强度重量比的泡沫产品包括:使每1重量份聚乙烯基系树脂与至少0.05重量份的有机自由基引发剂与组分 基本上由(a)至少一种聚乙烯基系树脂(b)每1重量份聚乙烯基系树脂(c)2-100重量份的至少一种无机填料,有效量的至少一种发泡剂。

    Separation membrane
    5.
    发明授权
    Separation membrane 失效
    分离膜

    公开(公告)号:US5104428A

    公开(公告)日:1992-04-14

    申请号:US722471

    申请日:1991-07-02

    CPC分类号: B01D71/40

    摘要: A separation membrane comprising a resin being constituted of the repeating unit represented by the general formula (I) and having a number average molecular weight of not less than 1.times.10.sup.3 in polystyrene equivalent: ##STR1## wherein R.sub.1 denotes an alkyl group of 1-20 carbons, a fluoroalkyl group of 1-20 carbons, or a group represented by the general formula: --(--X--).sub.m --(SiR.sub.2 R.sub.3 --).sub.n --R.sub.4, or --(--X--).sub.m --(--SiR.sub.2 R.sub.3 O--).sub.n --SiR.sub.4 R.sub.5 R.sub.6 (wherein X is an alkylene group of 1-8 carbons or a phenylene group of 6-12 carbons; m is 0 or 1; n is an integer of 1-20; R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are respectively a group, having 1-8 carbons, selected from an alkyl group, a cycloalkyl group, a phenyl group, an alkoxyl group, and a fluoroalkyl group, and may be the same with or different from each other).

    Novel block copolymer of styrene and ethylene
    6.
    发明授权
    Novel block copolymer of styrene and ethylene 失效
    苯乙烯和乙烯的新型嵌段共聚物

    公开(公告)号:US5102957A

    公开(公告)日:1992-04-07

    申请号:US511467

    申请日:1990-04-20

    IPC分类号: C08F297/02

    CPC分类号: C08F297/02

    摘要: A novel method is proposed for the preparation of a block copolymer of styrene and ethylene having a very narrow molecular weight distribution and controlled molar ratio of the styrene moiety to ethylene moiety in a high efficiency. The method comprises the steps of: (a) living-polymerizing styrene by using an organic lithium compound as a polymerization initiator; (b) admixing the polymerization mixture containing the living polymer of styrene with a tertiary diamine compound, such as N,N,N',N'-tetramethyl ethylene diamine; and (c) introducing ethylene monomer into the polymerization mixture to effect polymerization of ethylene on to the living polymer molecules of polystyrene.

    摘要翻译: 提出了一种制备苯乙烯和乙烯的嵌段共聚物的新方法,该嵌段共聚物具有非常窄的分子量分布和高度效率的苯乙烯部分与乙烯部分的受控摩尔比。 该方法包括以下步骤:(a)通过使用有机锂化合物作为聚合引发剂使苯乙烯活性聚合; (b)将包含苯乙烯的活性聚合物的聚合混合物与N,N,N',N'-四甲基乙二胺等叔胺化合物混合; 和(c)将乙烯单体引入到聚合混合物中以使乙烯聚合到聚苯乙烯的活性聚合物分子上。

    Optical resin from diallyl esters
    7.
    发明授权
    Optical resin from diallyl esters 失效
    来自二烯丙酯的光学树脂

    公开(公告)号:US4855374A

    公开(公告)日:1989-08-08

    申请号:US211166

    申请日:1988-06-22

    IPC分类号: C08F22/10 G02B1/04

    CPC分类号: C08F22/10 G02B1/04

    摘要: According to the invention, there are provided an optical resin and a process for preparing such a resin. The optical resin is obtained by polymerizing a feed monomer comprising at least a diester of dicarboxylic acid represented by the general formula (1) of: ##STR1## wherein R.sub.1 and R.sub.2 each represent the same or different groups and stand for an alkyl or alkenyl group having 1 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms or an ester residue having at least one aromatic ring.

    摘要翻译: 根据本发明,提供了一种光学树脂及其制备方法。 光学树脂通过聚合至少包含由以下通式(1)表示的二羧酸的二酯的进料单体获得:其中R 1和R 2各自表示相同或不同的基团,并且代表烷基 或具有1至12个碳原子的烯基,具有3至12个碳原子的环烷基或具有至少一个芳族环的酯残基。

    Method for modifying polyfumaric acid diester
    8.
    发明授权
    Method for modifying polyfumaric acid diester 失效
    聚富马酸二酯改性方法

    公开(公告)号:US4670520A

    公开(公告)日:1987-06-02

    申请号:US823225

    申请日:1986-01-28

    CPC分类号: C08F8/00 C08F8/12

    摘要: According to the invention, a method for modifying a polyfumaric acid diester is provided. The method comprises subjecting the polyfumaric acid diester to thermal treatment to thereby obtain a polyfumarate having carboxyl groups. The polyfumaric acid diester is obtained by polymerizing a fumaric acid diester represented by the following general formula of: ##STR1## wherein R represents an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms or an organic residue having at least one aromatic ring.

    摘要翻译: 根据本发明,提供了一种改性聚富马酸二酯的方法。 该方法包括使聚富马酸二酯进行热处理,从而得到具有羧基的聚富马酸盐。 聚富马酸二酯是通过聚合由以下通式表示的富马酸二酯得到的:其中R表示碳原子数1〜12的烷基,碳原子数3〜12的环烷基或具有碳原子数3〜12的有机残基, 至少一个芳香环。