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US 2010/0137552 A1Published application
Poly(ether-ester) polyols and processes for their production
AssigneeBayer MaterialScience AG
InventorsKlaus Lorenz, Jorg Hofmann, Hartmut Nefzger
Life of this patent
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Abstract
The invention is directed to novel poly(ethcr-ester) polyols, processes for their production from monocarboxylic or polycarboxylic acid esters with one or more bound polyether chain(s). This invention also relates to the production of polyurethane materials in which the isocyanate-reactive component comprises these poly(ether-ester)polyols.
Claims4
A process for producing poly(ether-esters), comprising
- (1) reacting
- a) one or more monocarboxylic or polycarboxylic acid esters containing one or more hydroxyl groups and having the general formula
- wherein:
- R represents a monovalent aryl, alkyl, aralkyl, alkenyl or alkynyl radical,
- R′ represents an at least divalent aryl, alkyl, aralkyl, alkenyl or alkynyl radical,
- wherein:
- m=1 and n=1,
- m≧2 and n=1,
- or
- n≧2 and m=1;
- with
- b) alkylene oxides;
- and, optionally, in the presence of
- c) one or more diols and/or polyols,
- and, optionally,
- d) one or more dicarboxylic acid esters;
- with ring opening to yield the corresponding monocarboxylic or polycarboxylic acid esters with one or more bound polyether chains,
- and
- (2) further reacting the products produced in step (1) by
- (i) transesterifying the products from (1), in which the transesterification is, optionally, performed with addition of
- (a) further diols or polyols;
- or, optionally,
- (b) further diols, and dicarboxylic acids or dicarboxylic acid derivatives;
- or, optionally,
- (c) further diols, or polyols and monocarboxylic acid esters, or monocarboxylic acids containing one or more hydroxyl groups,
- to yield OH-functional poly(ether-esters);
- (ii) transesterifying the products from (1) with
- (a) added monocarboxylic or polycarboxylic acid esters, which may contain a free hydroxyl group,
- to yield poly(ether-esters) having ester terminal groups;
- or
- (iii) hydrolysing the products from (1) to yield the corresponding monocarboxylic or polycarboxylic acids with a bound poly(ether) chain, and esterifying these with optionally added
- (a) monocarboxylic or polycarboxylic acids, which may contain a free hydroxyl group,
- to yield poly(ether-esters) having carboxylic acid terminal groups.
30 more elements
The poly(ether-esters) comprising the transesterification product of
- (1) monocarboxylic or polycarboxylic acid esters with one or more bound polyether chains which are the ring opening reaction products of:
- a) one or more monocarboxylic or polycarboxylic acid esters containing one or more hydroxyl groups and having the general formula
- wherein:
- R represents a monovalent aryl, alkyl, aralkyl, alkenyl or alkenyl radical,
- R′ represents an at least divalent aryl, alkyl, aralkyl, alkenyl or alkynyl radical,
- wherein:
- m=1 and n=1,
- m≧2 and n=1,
- or
- n≧2 and m=1,
- with
- b) alkylene oxides;
- and, optionally, in the presence of
- c) one or more diols and/or polyols,
- and, optionally,
- d) one or more dicarboxylic acid esters;
- and
- (2) a component selected from the group consisting of:
- (a) one or more diols and/or polyols;
- (b) diols, and dicarboxylic acids or dicarboxylic acid derivatives;
- (c) diols, or polyols and monocarboxylic acid esters, or monocarboxylic acids containing one or more hydroxyl groups;
- and
- (d) monocarboxylic or polycarboxylic acid esters, which may contain a free hydroxyl group;
- wherein (a), (b) and (c) yield OH-functional poly(ether-esters and (d) yields poly(ether-esters) having ester terminal groups.
21 more elements
The poly(ether-esters) comprising the esterification product of
- (1) hydrolyzed monocarboxylic or polycarboxylic acid esters with a bound polyether chain, which are the ring opening reaction products of:
- a) one or more monocarboxylic or polycarboxylic acid esters containing one or more hydroxyl groups and having the general formula
- wherein:
- R represents a monovalent aryl, alkyl, aralkyl, alkenyl or alkynyl radical,
- R′ represents an at least divalent aryl, alkyl, aralkyl, alkenyl or alkynyl radical,
- wherein:
- m=1 and n=1,
- m≧2 and n=1,
- or
- n≧2 and m=1;
- with
- b) alkylene oxides;
- and, optionally, in the presence of
- c) one or more diols and/or polyols,
- and, optionally,
- d) one or more dicarboxylic acid esters;
- and
- (2) one or more monocarboxylic or polycarboxylic acids, which may contain a free hydroxyl group,
- to yield poly(ether-esters) having carboxylic acid terminal groups.
16 more elements
Dependencies are inferred from the claim text.