US 2022/0195107 A1 · METHOD FOR LOWERING EMISSIONS OF A POLYURETHANE FOAM

Abstract

The present invention relates to a process for producing polyurethanes, preferably polyurethane foams, by reaction of compounds containing isocyanate-reactive hydrogen atoms with di- and/or polyisocyanates in the presence of one or more compounds selected from the group consisting of: NC—CHR1—CON R12—X (I), NC—CHR2—CONR3-aryl (II), NC—CHR4—CO2H (III), [NC—CHR5—CO2]mYm+ (IV), wherein X represents NR6R7, OR8, CONR9R10 or COOR11, R1 to R12 each independently of one another represent H, an optionally substituted C1-C8 alkyl group or an optionally substituted aryl group, Y represents a monovalent or divalent cation and m represents 1 or 2. The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.

Claims15

Dependent claims

A process for producing a polyurethane comprising reacting a compound containing isocyanate-reactive hydrogen atoms with a di- and/or polyisocyanate in the presence of one or more compounds selected from the group consisting of:

NC—CHR1—CONR12—X (I), and
NC—CHR2—CONR3-aryl (II),
wherein
X represents NR6R7, OR8, CONR9R10 or COOR11,
R1, R2, R3, R6, R7, R8, R9, R10, R11, and R12 each independently of one another represents H, an unsubstituted C1-C8 alkyl group, a substituted C1-C8 alkyl group, an unsubstituted aryl group, or an optionally substituted aryl group,
Y represents a monovalent or divalent cation, and
m represents 1 or 2.

4 more elements

A process for producing a polyurethane foam comprising reacting with one another

A1 a compound containing isocyanate-reactive hydrogen atoms having an OH number according to DIN 53240 of ≥15 to <260 mg KOH/g,
A2 optionally a compound containing isocyanate-reactive hydrogen atoms having an OH number according to DIN 53240 of ≥260 to <4000 mg KOH/g,
A3 water and/or a physical blowing agent,
A4 optionally auxiliary and additive,
A5 one or more compounds selected from the group consisting of:
NC—CHR1—CON R12—X (I), and
NC—CHR2—CONR3-aryl (II),
wherein
X represents NR6R7, OR8, CONR9R10 or COOR11,
R1, R2, R3, R6, R7, R8, R9, R10, R11, and R12 each independently of one another represent H, an unsubstituted C1-C8 alkyl group, a substituted C1-C8 alkyl group, an unsubstituted aryl group, or a substituted aryl group,
Y represents a monovalent or divalent cation, and
m represents 1 or 2,
and
B a di- and/or polyisocyanate.

11 more elements

Dependencies are inferred from the claim text.

Method for lowering emissions of a polyurethane foam

Life of this patent

Method for lowering emissions of a polyurethane foam

Life of this patent

Abstract

Claims15