摘要:
A compound comprising Formula I, or a mixture thereof, Rf—OCFHCF2O—[CH2CH2O]x—[C3H7O]y-A Formula I wherein Rf is CnF2n+1, n is 1 to about 6, x is a mixture of positive integers and is 4 or greater, y is 0 to about 4, provided that the ratio of y to x is equal to or less than 0.25, A is RfOCHFCF2 or CmH2m+1, and m is 0 to about 24 and its use in lowering surface tension and imparting improved surface effects is disclosed.
摘要翻译:包含式I或其混合物的化合物<?在线公式描述=“在线式”末端=“铅”→Rf-OCFHCF 2 O- [CH 2 CH 2 O] x - [C 3 H 7 O] y A式I < in-line-formula description =“In-line Formulas”end =“tail”?>其中Rf为CnF2n + 1,n为1至约6,x为正整数的混合物,为4或更大,y为0 至约4,条件是y与x的比例等于或小于0.25,A为RfOCHFCF2或CmH2m + 1,m为0至约24,并且其用于降低表面张力并赋予改善的表面效果。
摘要:
A compound comprising Formula I, or a mixture thereof, wherein Y is a bond or CmH2m−p(OA)p wherein m is 0 to 4, and p is 0 or 1, X′ is X or H, X is CH2CH2OA, CH(CH2OA)2, C(CH2OA)3, or X and X′ combine to form (CH2CH2)2NCH2CH2OA or (CH2CH2)2O, provided that when X and X′ combine to form (CH2CH2)2O then Y is CH2CH(OA)CH2, A is CF2CFHO—Rf or H, Rf is CnF2n+1 wherein n is an integer of 1 to about 6, M is a cation having a charge equal to a, and a is a positive integer equal to 1 or 2, provided that at least one of X, X′, or Y contains A equal to CF2CFHO—Rf, and its use in lowering surface tension and imparting improved surface effects.
摘要翻译:包含式I或其混合物的化合物,其中Y是键或C m H 2 m-p(OA)p p其中m 为0〜4,p为0或1,X'为X或H,X为CH 2 CH 2 OA,CH(CH 2) C(CH 2 OA)3,或X和X'结合形成(CH 2)2, 2/2个2或2个或2个或更多个(CH 2)2 其中X和X'组合形成(CH 2 CH 2 CH 2)2 O, )2 O,则Y是CH 2 CH(OA)CH 2,A是CF 2 CO 2 -OR 2 或H,R f是C n H 2n + 1,其中n是1至约的整数 如图6所示,M是电荷等于a的阳离子,a是等于1或2的正整数,条件是X,X'或Y中的至少一个包含等于CF 2 CFHO-R f的A, / SUB>,其用于降低表面张力并赋予改善的表面效果。
摘要:
Current methods for making polyfluorosulfonamido amines, which involve the use of a diamine reactant, provide low yields and produce an undesirable fluorine containing bis-sulfonamide by-product representing an economic loss. The bis-sulfonamide by-product is particularly undesirable because it shares very similar physical properties with the desired monoamine product thus making isolation of the desired polyfluorosulfonamido amine product difficult and costly. Furthermore, instead of the efficient incorporation of fluorine to make the desired polyfluorosulfonamido amine product, the bis-sulfonamide by-product constitutes a substantial loss of costly fluorinated starting material. The bis-sulfonamide by-product also constitutes an undesirable impurity that can worsen surfactancy, repellency, or other performance characteristics of the desired polyfluorosulfonamido amine product. The present invention provides a method of making a polyfluorosulfonamido amine without the production of a bis-sulfonamide by-product by reacting a polyfluoroalkylsulfonic compound with a monoamino amide rather than with a diamine reactant as in previously known methods.
摘要:
This invention relates to a protected organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.
摘要:
Certain olefins such as ethylene, .alpha.-olefins and cyclopentene can be polymerized by using catalyst system containing a nickel or palladium .alpha.-diimine complex, a metal containing hydrocarbylation compound, and a selected Lewis acid, or a catalyst system containing certain nickel[II] or palladium[II] compounds, an .alpha.-diimine, a metal containing hydrocarbylation compound, and optionally a selected Lewis acid. The process advantageously produces polyolefins useful for molding resins, films, elastomers and other uses.
摘要:
The molecular weight of polyolefins produced using selected late transition metal complexes of bidentate ligands may be lowered by carrying out the polymerization in the presence of hydrogen, a selected silane, or CBr4.
摘要:
Certain olefins such as ethylene, .alpha.-olefins and cyclopentene can be polymerized by using catalyst system containing a nickel or palladium .alpha.-diimine complex, a metal containing hydrocarbylation compound, and a selected Lewis acid, or a catalyst system containing certain nickel �II! or palladium �II! compounds, an .alpha.-diimine, a metal containing hydrocarbylation compound, and optionally a selected Lewis acid. The process advantageously produces polyolefins useful for molding resins, films, elastomers and other uses.