Fluorinated oligourethanes
    1.
    发明授权
    Fluorinated oligourethanes 失效
    氟化低聚氨酯

    公开(公告)号:US07323435B1

    公开(公告)日:2008-01-29

    申请号:US09592254

    申请日:2000-06-12

    摘要: Fluorinated oligourethanes, having number average molecular weight lower than or equal to 9,000, having a branched structure, formed of the following monomers and macromers: a) aliphatic, cycloaliphatic or aromatic polyisocyanates, b) heterofunctional hydrogenated monomers having general formula: X0—(CR1AR2A)b—Y0   (Ib) one or more of the following compounds: c) bifunctional hydroxyl (per)fluoropolyethers (PFPE diols) having number average molecular weight in the range 400-3,000, e) monofunctional hydroxyl (per)fluoropolyethers or monofunctional hydroxyl (per)fluoroalkanes (e′), having number average molecular weight in the range 300-1,000, and optionally the following compounds: d) heterofunctional monomers, dI) hydrogen-active compounds, capable to form bonds with the NCO functions stable at the hydrolysis but weak at heat.

    摘要翻译: 数均分子量低于或等于9,000的氟化低聚氨酯具有分支结构,由以下单体和大分子单体形成:a)脂族,脂环族或芳族多异氰酸酯,b)具有以下通式的异型官能氢化单体: line-formula description =“In-line Formulas”end =“lead”?> X - (CR <1>

    Methods for paper sizing with fluorinated polymers
    4.
    发明授权
    Methods for paper sizing with fluorinated polymers 有权
    用氟化聚合物进行纸张施胶的方法

    公开(公告)号:US07323084B2

    公开(公告)日:2008-01-29

    申请号:US10183350

    申请日:2002-06-28

    IPC分类号: D21H21/16 D21H17/57 D21H17/08

    摘要: Use for the paper sizing of aqueous polyurethane dispersions from (per)fluoropolyethers obtainable by reaction among the following compounds: a) (per)fluoropolyether diols having a number average molecular weight from 400 to 5,000; b) diisocyanates having formula: OCN—R—NCO  (VIa)  wherein R is an aliphatic, cycloaliphatic bifunctional radical; or an aromatic bifunctional radical; c) diols containing one carboxylic function and optionally one or both the following components: d) hydrazine and/or aliphatic diamines; e) monofunctional hydroxylic (per)fluoropolyethers having a number average molecular weight in the range 300-1,000.

    摘要翻译: 用于通过以下化合物之间的反应可得到的(全)氟聚醚的水性聚氨酯分散体的纸张尺寸:a)数均分子量为400至5,000的(全)氟聚醚二醇; b)具有式的二异氰酸酯:<?in-line-formula description =“In-line formula”end =“lead”?> OCN-R-NCO(VIa)<?in-line-formula description =“In-line Formulas “end =”tail“?>其中R是脂族,脂环族双功能基团; 或芳族双功能基团; c)含有一个羧基官能团的二醇和任选的一种或两种以下组分:d)肼和/或脂族二胺; e)数均分子量在300-1,000范围内的单官能羟基(全)氟聚醚。

    Polyurethanes having a low friction coefficient
    5.
    发明授权
    Polyurethanes having a low friction coefficient 失效
    具有低摩擦系数的聚氨酯

    公开(公告)号:US06579835B2

    公开(公告)日:2003-06-17

    申请号:US09875980

    申请日:2001-06-08

    IPC分类号: C10M14912

    摘要: Use of fluorinated polyurethanes thermally crosslinkable for obtaining coatings having an improved friction coefficient for the dry lubrication of rubbers, plastics, metals, glass, said polyurethanes obtainable from aqueous dispersions of cationic oligourethanes having a molecular weight≦9,000, formed by: a) polyisocyanates, having NCO functionality higher than 2, b) bifunctional hydrogenated monomers, c) bifunctional hydroxylated (per)fluoropolyethers, e) monofunctional hydroxyl or carboxylic (per)fluoropolyethers or monofunctional hydroxyl (per)fluoroalkanes optionally: d) hydrogenated monomers by which it is possible to insert a crosslinkable chemical function in the oligourethane; dI) hydrogen-active compounds, able to form with the NCO functions thermolabile bonds.

    摘要翻译: 使用可热交联的氟化聚氨酯,用于获得具有改进的摩擦系数的涂层,用于橡胶,塑料,金属,玻璃的干燥润滑,所述聚氨酯可从具有分子量为= 9,000的阳离子低聚氨酯的水性分散体获得,所述聚氨酯由以下形成:a)多异氰酸酯 具有高于2的NCO官能团,b)双功能氢化单体,c)双功能羟基化(全)氟聚醚,e)单官能羟基或羧基(全)氟聚醚或单官能羟基(全)氟烷烃,任选地:d)氢化单体, 可能在低聚氨酯中插入可交联的化学功能; dI)能够与NCO形成的氢活性化合物具有热不稳定性键。

    Fluorine-containing compounds having polyacetalic structure, and process
for preparing them
    10.
    发明授权
    Fluorine-containing compounds having polyacetalic structure, and process for preparing them 失效
    具有聚缩醛结构的含氟化合物及其制备方法

    公开(公告)号:US5637671A

    公开(公告)日:1997-06-10

    申请号:US542443

    申请日:1995-10-12

    摘要: 1) Disclosed herein are new fluorine-containing compounds having polyacetalic structure, of general formula:[Rf.sub.m --CH.sub.2 O(CH.sub.2 O).sub.c --CH.sub.2 --.brket close-st..sub.n (I)where:Rf=a perfluorooxyalkylene chain having Mn from 500 to 5,000;m=4-25;c=1-10;n=2-100.2) A process for preparing them which comprises carrying out the polycondensation of diols having formula:HORfOH (II)with formaldehyde, in mass or in the presence of solvents, in an acid medium. The compounds of formula (I) can be oligomeric compounds (polymerization degree x.sub.n from 2 to about 20) or polymeric compounds (x.sub.n from about 20 to about 100). They exhibit a high stability to heat and to chemical agents, and Tg values slightly different from the ones of the diols utilized for preparing them.

    摘要翻译: 1)本文公开了具有以下通式的具有聚缩醛结构的新的含氟化合物:[Rfm-CH2O(CH2O)c-CH2- + 548n(I))其中:Rf =具有+ E的全氟氧化烯链,ovs M + EE n从500到5,000; m = 4-25; c = 1-10; n = 2-100。 2)一种制备它们的方法,其包括在酸性介质中,以质量或在溶剂存在下,将具有式:HORFOH(II)的二醇与甲醛缩聚。 式(I)化合物可以是低聚化合物(聚合度+ E,ovs x + EE n从2至约20)或聚合化合物(+ E,ovs x + EE n约20至约100)。 它们对热和化学试剂表现出高稳定性,并且Tg值与用于制备它们的二醇的那些略有不同。