摘要:
The invention relates to a process for preparing a flame-resistant polymer-modified polyol having a solids content of 1 to 65 wt.% wherein (i) at least one polyisocyanate and (ii) an olamine are reacted in (iii) a base polyol having at least two active hydrogen containing groups of which more than 50% are primary active hydrogen containing groups and wherein the olamine has at least one phosphonic ester group attached to a tertiary nitrogen atom and contains at least two hydroxyl groups. The invention further relates to a flame-resistant polymer-modified polyol obtainable with the process of the invention, to a process for preparing optionally foamed plastics using the polymer-modified polyol of the invention, and to the use of a polymer-modified polyol for the preparation of flexible polyurethane foams.
摘要:
The invention relates to a process for the preparation of a triaryl phosphate ester composition comprising a. reacting a phosphorous oxyhalide with a (C 1 -C 15 -alkyl)phenol to obtain a first product; b. reacting the first product with phenol to obtain a triaryl phosphate ester composition; wherein in step a., for every mol of phosphorous oxyhalide 1.3 to 1.6 mols of (C 1 -C 15 -alkyl)phenol are used. The invention also relates to a triaryl phosphate ester composition obtainable according to the process of the invention.
摘要:
The invention relates to a method of making a polymer-modified polyol having a solid content from 13 to 55 wt.% wherein an olamine is reacted with an organic polyisocyanate in the presence of a base polyol and at least one catalyst, wherein said at least one catalyst is a zinc carboxylate, and wherein the base polyol has hydroxyl functions wherein more than 20 % of said hydroxyl functions are primary hydroxyl functions. The invention further relates to a polymer-modified polyol obtainable with the method of the invention, the use of the polymer-modified polyol for the preparation of optionally foamed plastics, and to a method for the preparation of optionally foamed plastics using the polymer-modified polyol of the invention.
摘要:
The invention relates to a process for preparing a flame-resistant polymer-modified polyol having a solids content of 1 to 65 wt.% wherein (i) at least one polyisocyanate and (ii) an olamine are reacted in (iii) a base polyol having at least two active hydrogen containing groups of which more than 50% are primary active hydrogen containing groups and wherein the olamine has at least one phosphonic ester group attached to a tertiary nitrogen atom and contains at least two hydroxyl groups. The invention further relates to a flame-resistant polymer-modified polyol obtainable with the process of the invention, to a process for preparing optionally foamed plastics using the polymer-modified polyol of the invention, and to the use of a polymer-modified polyol for the preparation of flexible polyurethane foams.
摘要:
A method is described for the synthesis of a polyether diol product manufactured by DMC-catalyzed continuous addition of starter using water as the continuously added starter. The amount of continuously added water is adjusted depending on the initial starter employed and the desired hydroxyl number of the polyether diol product.
摘要:
The invention relates to a process for the preparation of a triaryl phosphate ester composition comprising a. reacting a phosphorous oxyhalide with a (C 1 -C 15 -alkyl)phenol to obtain a first product; b. reacting the first product with phenol to obtain a triaryl phosphate ester composition; wherein in step a., for every mol of phosphorous oxyhalide 1.3 to 1.6 mols of (C 1 -C 15 -alkyl)phenol are used. The invention also relates to a triaryl phosphate ester composition obtainable according to the process of the invention.