Abstract: The present invention relates to a process for producing insulating products based on mineral fibers, in particular on mineral wool, comprising providing a first binder composition containing (a) from 50% to 85% by weight of water, preferably from 70 to 82% of water (b) from 10% to 45% by weight, preferably 15 to 35% by weight of a saccharide component containing sucrose, (c) from 3% to 15% by weight, preferably from 5 to 12% by weight of one or more ammonium salts or primary amine salts of an acid, preparing a second binder composition comprising the dilution of the first aqueous binder composition with water to a solids content of between 3 and 7% by weight, applying the second binder composition to mineral fibers, forming an assembly of mineral fibers coated with the second binder composition, and heating the assembly of coated mineral fibers so as to form an assembly of mineral fibers bound by an insoluble binder, said process being characterized in that the first aqueous binder composition has a p

Abstract: A method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I): with excess aminobenzene according to structure (II): wherein: each R1, R2, R3, R4, R12, and R13 is independently a group that is inert in the polymerization of epoxy compounds, and R11 is H or (C1-C6)alkyl, in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and from which the di(aminoaryl)fluorene compound is crystallizable, to form a crude product mixture comprising the di(aminoaryl)fluorene compound, (b) crystallizing di(aminoaryl)fluorene compound in the product mixture, and (c) separating the product mixture into crystallized di(aminoaryl)fluorene compound and a filtrate.

Abstract: The present invention is directed to a method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I) with excess aminobenzene according to structure (II) wherein: each R1, R2, R3, R4, R12, and R13 is independently a group that is inert in the polymerization of epoxy compounds, and R11 is H or (C1-C6)alkyl, in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C.

Abstract: The present invention is directed to a method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I) with excess aminobenzene according to structure (II) wherein: each R1, R2, R3, R4, R12, and R13 is independently a group that is inert in the polymerization each R1, of epoxy compounds, and R11 is H or (C1-C6)alkyl, in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C.

Abstract: The present invention relates to a process for producing insulating products based on mineral fibers, in particular on mineral wool, comprising providing a first binder composition containing (a) from 50% to 85% by weight of water, preferably from 70 to 82% of water (b) from 10% to 45% by weight, preferably 15 to 35% by weight of a saccharide component containing sucrose, (c) from 3% to 15% by weight, preferably from 5 to 12% by weight of one or more ammonium salts or primary amine salts of an acid, preparing a second binder composition comprising the dilution of the first aqueous binder composition with water to a solids content of between 3 and 7% by weight, applying the second binder composition to mineral fibers, forming an assembly of mineral fibers coated with the second binder composition, and heating the assembly of coated mineral fibers so as to form an assembly of mineral fibers bound by an insoluble binder, said process being characterized in that the first aqueous binder composition has a p