Invention relates to the use of foam stabilizers, produced on the basis of sustainable raw materials, for prroducing polyurethane foams

1. A method of stabilizing foam, comprising:

utilizing a foam stabilizer of the general formula (I) in a preparation of a polyurethane foam, the general formula (I) being represented by:

wherein n is 0-500;

wherein m is 1-60;

wherein o is 0-60;

wherein k is 0-10;

wherein R may be a linear, cyclic, or branched, aliphatic or aromatic, saturated or unsaturated hydrocarbon radical having 1 to 20 C atoms, which may contain heteroatoms;

wherein R 1 is R, R 2 , or R 3 ;

wherein R 2 is CH 2 —CH 2 —CH 2 —O—(CH 2 —CH 2 O—) x —(CH 2 —CH(R″)O—) y —C(O)R′, in which R′ represents the alkyl radical derived from monobasic fatty acids based on natural vegetable or animal oils having 6-30 carbon atoms;

wherein R 3 is one of:

CH 2 —CH 2 —CH 2 —O—(CH 2 CH 2 O—) x —(CH 2 —CH(R″)O—) y —R′″;

CH 2 —CH 2 —CH 2 —O—(CH 2 —CH 2 O—) x —(CH 2 —CH(R″)O—) y —R′″;

CH 2 —CH 2 —CH 2 —O—(CH 2 —CH 2 O—) x —(CH 2 —CH(R″)O—) y —(SO) z —R′″;

CH 2 —R IV ;

CH 2 —CH 2 —(O) x , —R IV ;

CH 2 —CH 2 —CH 2 —O—CH 2 —CH(OH)—CH 2 OH;

CH 2 —CH 2 —CH 2 —O—CH 2 —C(CH 2 OH) 2 —CH 2 —CH 3 ;

wherein:

x is 0 to 100;

x′ is 0 or 1;

y is 0 to 100;

z is 0 to 100;

R″ is an optionally substituted alkyl group having 1 to 4 C atoms;

R′″ denotes a hydrogen radical, an alkyl group having 1 to 4 C atoms, the group —C(O)—R″, an alkylaryl group, or the group —C(O)NH—R′;

R IV denotes an optionally substituted, optionally halogen-substituted, hydrocarbon radical having 1 to 50 C atoms; and SO denotes the radical —CH(C 6 H 5 )—CH 2 —O—.

2. The method according to claim 1 ;

wherein the foam stabilizer of the general formula (I) is utilized in the preparation of a rigid polyurethane foam.

3. The method according to claim 1 ;

wherein the foam stabilizer of the general formula (I) is utilized in the preparation of a polyester-polyurethane foam.

4. The method according to claim 1 ;

wherein the foam stabilizer of the general formula (I) is utilized in the preparation of a hot flexible polyurethane foam.

5. The method according to claim 1 ;

wherein the foam stabilizer of the general formula (I) is utilized in the preparation of an HR polyurethane foam.

6. The method according to claim 1 ;

wherein the foam stabilizer of the general formula (I) is utilized in a mixture with at least one conventional foam stabilizer prepared on the basis of petrochemical raw materials.

7. The method according to claim 1 ;

wherein the foam stabilizer of the general formula (I) is utilized in the preparation of the polyurethane foam in combination with at least one of an amine catalyst, a metal catalyst, a buffer substance, a crosslinking agent, an emulsifier, a flameproofing agent, an antioxidant, an antistatic agent, a biocide, a colour paste, and a solid filler.

8. The method according to claim 1 ;

wherein R 2 is CH 2 —CH 2 —CH 2 —O—(CH 2 —CH 2 O—) x —(CH 2 —CH(R″)O—) y C(O)R′, in which R′ represents the alkyl radical derived from monobasic fatty acids based on natural vegetable or animal oils having 8-22 carbon atoms.

9. The method according to claim 1 ;

wherein R 2 is CH 2 —CH 2 —CH 2 —O—(CH 2 —CH 2 O—) x —(CH 2 —CH(R″)O—) y —C(O)R′, in which R′ represents the alkyl radical derived from monobasic fatty acids based on natural vegetable or animal oils, the monobasic fatty acids selected from the group consisting of:

caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, isostearic acid, stearic acid, 12-hydroxystearic acid, dihydroxystearic acid, oleic acid, linoleic acid, petroselinic acid, elaidic acid, arachidic acid, behenic acid, erucic acid, gadoleic acid, linolenic acid, eicosapentaenoic acid, docosahexaenoic acid, and arachidonic acid, which can be used alone or as a mixture.

10. The method according to claim 1 ;

wherein n is 0-79.

11. The method according to claim 1 ;

wherein o is 1-60.

12. The method according to claim 1 ;

wherein k is 1-10.