Patent classifications
C08G14/00
Polymer of fluorine-containing sulfonated poly(arylene ether)s and method of manufacturing the same
A polymer of fluorine-containing sulfonated poly(arylene ether)s and a manufacturing method thereof are provided. The polymer is formed by processing a nucleophilic polycondensation between a fluorine-containing monomer having an electron-withdrawing group and a multi-phenyl monomer. A main structure of the polymer of fluorine-containing sulfonated poly(arylene ether)s has a first portion with fluoro or trifluoromethyl substituted phenyl groups, and a second portion with sulfonated phenyl groups.
Polymer of fluorine-containing sulfonated poly(arylene ether)s and method of manufacturing the same
A polymer of fluorine-containing sulfonated poly(arylene ether)s and a manufacturing method thereof are provided. The polymer is formed by processing a nucleophilic polycondensation between a fluorine-containing monomer having an electron-withdrawing group and a multi-phenyl monomer. A main structure of the polymer of fluorine-containing sulfonated poly(arylene ether)s has a first portion with fluoro or trifluoromethyl substituted phenyl groups, and a second portion with sulfonated phenyl groups.
Polyarylene ether sulfone (PAES) compositions
A poly(arylether sulfone) polymeric material comprising polymer molecules wherein more than 50% moles of the recurring units of said polymer molecules are recurring units (Rt), equal to or different from each other, complying with formula (S.sub.t): -E-Ar.sup.1S0.sub.2-[Ar.sup.2-(T-Ar.sup.3).sub.nS0.sub.2].sub.m-Ar.sup.4 (formula S.sub.t) wherein: n and m, equal to or different from each other, are independently zero or an integer of 1 to 5, each of Ar.sup.1, Ar.sup.2, Ar.sup.3 and Ar.sup.4 equal to or different from each other and at each occurrence, is an aromatic moiety, T is a bond or a divalent group optionally comprising one or more than one heteroatomE is of formula (E.sub.t): wherein each of R, equal to or different from each other, is selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; j is zero or is an integer from 1 to 4; and wherein the fraction of polymer molecules having a molecular weight of below 5 000 [% fraction M.sup.<5000, hereinafter] with respect to all the polymer molecules in said polymeric material is of at most 10% weight, and wherein said % fraction M.sup.<5000 is of at least [3.02-PDI] % when the polymeric material possesses a polydispersity index (PDI) of below 3.02. ##STR00001##
CARBOHYDRATE POLYAMINE BINDERS AND MATERIALS MADE THEREWITH
A binder comprising the products of a carbohydrate reactant and polyamine is disclosed. The binder is useful for consolidating loosely assembled matter, such as fibers. uncured fibrous products comprising fibers in contact with a carbohydrate reactant and a polyamine are also disclosed. The binder composition may be cured to yield a fibrous product comprising fibers bound by a cross-linked polymer. Further disclosed are methods for binding fibers with the carbohydrate reactant and polyamine based binder.
CARBOHYDRATE BINDERS AND MATERIALS MADE THEREWITH
A binder comprising a polymeric binder comprising the products of a carbohydrate reactant and nucleophile is disclosed. The binder is useful for consolidating loosely assembled matter, such as fibers. Fibrous products comprising fibers in contact with a carbohydrate reactant and a nucleophile are also disclosed. The binder composition may be cured to yield a fibrous product comprising fibers bound by a cross-linked polymer. Further disclosed are methods for binding fibers with the carbohydrate reactant and polyamine based binder.
CARBOHYDRATE POLYAMINE BINDERS AND MATERIALS MADE THEREWITH
A binder comprising the products of a carbohydrate reactant and polyamine is disclosed. The binder is useful for consolidating loosely assembled matter, such as fibers. Uncured fibrous products comprising fibers in contact with a carbohydrate reactant and a polyamine are also disclosed. The binder composition may be cured to yield a fibrous product comprising fibers bound by a cross-linked polymer. Further disclosed are methods for binding fibers with the carbohydrate reactant and polyamine based binder.
CARBOHYDRATE POLYAMINE BINDERS AND MATERIALS MADE THEREWITH
A binder comprising the products of a carbohydrate reactant and polyamine is disclosed. The binder is useful for consolidating loosely assembled matter, such as fibers. Uncured fibrous products comprising fibers in contact with a carbohydrate reactant and a polyamine are also disclosed. The binder composition may be cured to yield a fibrous product comprising fibers bound by a cross-linked polymer. Further disclosed are methods for binding fibers with the carbohydrate reactant and polyamine based binder.