Fluorinated copolymer and barrier films
    22.
    发明授权
    Fluorinated copolymer and barrier films 失效
    氟化共聚物和阻隔膜

    公开(公告)号:US5173556A

    公开(公告)日:1992-12-22

    申请号:US696414

    申请日:1991-05-06

    CPC classification number: C08F214/186 C08F218/04 C08F8/12 C08J5/18 C08F2810/50

    Abstract: The present invention is directed to a copolymer of a fluoromonomer having the formula R.sub.1 R.sub.2 C.dbd.CR.sub.3 F wherein R.sub.1, R.sub.2 and R.sub.3 are selected from H and F, and R.sub.3 may be Cl when R.sub.1 and R.sub.2 are F; and a vinyl monomer having the formula H.sub.2 C.dbd.CHR.sub.x, wherein R.sub.x is a radical having the formula --O.sub.2 CR.sub.y, wherein R.sub.y is a radical selected from CH.sub.3 and C.sub.2 H.sub.5.The resulting copolymer comprises fluorinated units having the formula (R.sub.1 R.sub.2 C--CR.sub.3 F) wherein R.sub.1, R.sub.2 and R.sub.3 are selected from H and F, and R.sub.3 may be Cl when R.sub.1 and R.sub.2 are F, and corresponding amounts of vinyl units having the formula (H.sub.2 C--CHR.sub.x), wherein R.sub.x is selected from --CH.sub.3 and C.sub.2 H.sub.5. In an alternate and preferred embodiment the copolymer is hydrolyzed so that R.sub.x becomes --OH.

    Abstract translation: 本发明涉及式R1R2C = CR3F的含氟单体的共聚物,其中R 1,R 2和R 3选自H和F,当R 1和R 2为F时,R 3可以为Cl; 和具有式H2C = CHRx的乙烯基单体,其中Rx是具有式-O2CRy的基团,其中Ry是选自CH3和C2H5的基团。 所得共聚物包括具有式(R 1 R 2 C-CR 3 F)的氟化单元,其中R 1,R 2和R 3选自H和F,当R 1和R 2为F时,R 3可为Cl,并且相应量的具有式 -CHRx),其中Rx选自-CH 3和C 2 H 5。 在替代和优选的实施方案中,共聚物被水解,使得Rx变成-OH。

    Corner sanding tool
    23.
    发明授权
    Corner sanding tool 有权
    角磨具

    公开(公告)号:US06439988B1

    公开(公告)日:2002-08-27

    申请号:US09399418

    申请日:1999-09-20

    CPC classification number: B24D3/32 B24D15/04

    Abstract: Sanding tools made from a block of a foamed polymer sponge having two contiguous sides meeting at a right angle that are provided with an abrasive coating and which have in addition a means for grasping the tool formed in the body of the sponge so that the user can simultaneously sand two walls meeting to form a corner.

    Abstract translation: 由具有两个相邻侧面的发泡聚合物海绵块制成的砂光工具,其直角会合,设置有研磨涂层,并且还具有用于抓住形成在海绵体中的工具的装置,使得使用者可以 同时沙两墙会合,形成一个角落。

    Polycyclic pyromellitates and use thereof on polyesters and polyamides
    26.
    发明授权
    Polycyclic pyromellitates and use thereof on polyesters and polyamides 失效
    多环苯并四唑酸酯及其在聚酯和聚酰胺上的应用

    公开(公告)号:US4435294A

    公开(公告)日:1984-03-06

    申请号:US429945

    申请日:1982-09-30

    CPC classification number: D06M13/213 Y10T428/2969

    Abstract: Oligomers containing pyromellitic rings, divalent linking groups, pendant fluoroalkoxy or hydrocarbon alkoxy groups and pendant polar groups of various kinds impart soil repellency to fibers that persists after repeated laundering. An exemplary material is prepared by the reaction of pyromellitic difluoroester/diacid chloride with 1,4-butanediol (the linking group) and 3-chloro-1,2-propanediol (the pendant polar group).

    Abstract translation: 含有均苯四甲酸环,二价连接基团,氟代烷氧基或烃烷氧基侧基和各种侧挂极性基团的低聚物,对反复洗涤后持续存在的纤维赋予疏水性。 通过均苯四甲酸二氟酯/二酰氯与1,4-丁二醇(连接基)和3-氯-1,2-丙二醇(侧极基团)的反应制备示例性材料。

    Fluorinated and non-fluorinated terminally halogenated alkyl
pyromellitates
    29.
    发明授权
    Fluorinated and non-fluorinated terminally halogenated alkyl pyromellitates 失效
    氟化和非氟化的末端卤代烷基苯甲酸酯

    公开(公告)号:US4537728A

    公开(公告)日:1985-08-27

    申请号:US431452

    申请日:1982-09-30

    CPC classification number: C07C69/76

    Abstract: Novel polycarboxy benzene dianhydrides useful as surfactants are disclosed. The novel compounds of this invention are pyromellitate tetraesters wherein two ester moieties characteristically contain fluorinated alkyl groups or saturated hydrocarbon alkyl groups and wherein two ester moieties contain alkylene moieties having a terminal halogen.

    Abstract translation: 公开了可用作表面活性剂的新型多羧基苯二酐。 本发明的新化合物是均苯四酸四丁酯,其中两个酯部分特征地含有氟化烷基或饱和烃烷基,其中两个酯部分含有具有末端卤素的亚烷基部分。

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