公开(公告)号：US5948478A

公开(公告)日：1999-09-07

申请号：US638135

申请日：1996-04-26

申请人： Daria Lenti ,  Roberta Marchetti ,  Stefano Turri

发明人： Daria Lenti ,  Roberta Marchetti ,  Stefano Turri

IPC分类号： C08G65/00 ,  C09D171/02 ,  B05D3/02

CPC分类号： C08G65/007 ,  C09D171/02

摘要： A method of protecting objects from graffiti using fluorinated polymers based on fluoropolyethers in a dry formulation wherein the fluorinated polymer includes a fluorinated part R.sub.F and optionally an hydrogenated part R.sub.H not containing groups capable of linking to basic acceptors by means of hydrogen bonds, the bonds linking the fluorinated part, derived from (per)fluoropolyethers, to the hydrogenated part being of simple C--O ether type, the T' terminal groups being such as to render the structure bi- or polyfunctional thus making possible the curing reaction, and subsequent curing of the fluorinated polymer.

摘要翻译： 一种在干燥制剂中使用基于氟聚醚的氟化聚合物保护物体免受涂鸦的方法，其中氟化聚合物包括氟化部分RF和任选的氢化部分RH，其不含能够通过氢键连接到碱性受体的基团，所述键连接 衍生自（全）氟代聚醚的氟化部分到氢化部分为简单的CO醚型，T'端基团使结构双官能或多官能化，从而使固化反应成为可能，随后固化 氟化聚合物。

公开(公告)号：US6071564A

公开(公告)日：2000-06-06

申请号：US872454

申请日：1997-06-10

申请人： Roberta Marchetti ,  Massimo Malavasi

发明人： Roberta Marchetti ,  Massimo Malavasi

IPC分类号： B65B33/04 ,  C08G18/08 ,  C08G18/10 ,  C08G18/50 ,  C08G18/79 ,  C08G65/00 ,  C09D171/02 ,  C09D175/04 ,  B05D3/02 ,  C08G18/28

CPC分类号： C08G18/10 ,  C08G18/089 ,  C08G18/5015 ,  C08G18/792 ,  C08G65/007 ,  C09D171/02 ,  C09D175/04 ,  C08G2650/48

摘要： Use for protective coatings of compositions comprising (% by wt.): A) from 10 to 60% of a A1) (per)fluoropolyethereal prepolymer having a polyisocyanic functionality obtainable by reacting a bifunctional having hydroxylic functionality, said fluoropolyethers having --CH.sub.2 OH terminations directly linked to a perfluoroalkylic group CF.sub.2 or CF.sub.2 CFX (X.dbd.Cl, F) or CF(CF.sub.3), with a polyisocyanate containing isocyanurate rings, preferably obtained by cyclotrimerization of HDI, IPDI or other monomeric diisocyanates, by utilizing an excess of isocyanate groups comprised between 10 and 80% by moles; the above fluoropolyether prepolymer can be partially or totally replaced by A2) non fluorinated polyisocyanates containing isocyanurate rings and/or hydrogenated polyisocyanate prepolymers;B) from 0.1 to 50% of a (per)fluoropolyether having bifunctional hydroxylic functionality of the type --CF.sub.2 CH.sub.2 OH, --CF.sub.2 CFXCH.sub.2 OH (X.dbd.Cl, F) or --CF(CF.sub.3)CH.sub.2 OH; or polyfunctional hydroxylic functionality termination but containing at least 5% by weight, preferably 10%, of the same type of termination indicated above for the bifunctional; or (per)fluoropolyethers prepolymers as defined in A) but having a lower prepolymerization degree so to leave free oxydrilyic functions of the type --CF.sub.2 CH.sub.2 OH, --CF.sub.2 CFXCH.sub.2 OH (X.dbd.Cl, F), or --CF(CF.sub.3)CH.sub.2 OH;or the latter prepolymers having free hydroxilic functions can be used alone as a single component, being component A) 0%;C) 10-90%, with respect to the resin of a diluting solvent.

摘要翻译： 用于包含（重量％）的组合物的保护涂层：A）10至60％的具有通过使具有羟基官能团的双官能团反应获得的多异氰酸官能团的A1）（全）氟聚醚聚醚预聚物，所述含氟聚醚具有-CH 2 OH终端直接 与含全氟烷基的CF 2或CF 2 CFX（X = Cl，F）或CF（CF 3）连​​接，与含有异氰脲酸酯环的多异氰酸酯反应，优选通过HDI，IPDI或其它单体二异氰酸酯的环化三聚，通过使用过量的异氰酸酯基团 10和80摩尔％ 上述含氟聚醚预聚物可部分或全部被A2）含有异氰脲酸酯环和/或氢化多异氰酸酯预聚物的非氟化多异氰酸酯代替; B）0.1至50％具有-CF 2 CH 2 OH，-CF 2 CFXCH 2 OH（X = Cl，F）或-CF（CF 3）CH 2 OH的双功能羟基官能团的（全）氟聚醚; 或多官能羟基官能团终止，但含有至少5重量％，优选10重量％的与双官能团相同类型的终止物; 或（A）含氟聚醚预聚物，但是具有较低的预聚合度，以便留下-CF 2 CH 2 OH，-CF 2 CFXCH 2 OH（X = Cl，F）或-CF（CF 3）CH 2 OH的游离氧饱和官能团; 或具有游离羟基功能的后一种预聚物可单独用作单一组分，即组分A）0％; C）10-90％，相对于稀释溶剂的树脂。