USE OF ACRYLIC ACID ESTERS AND AMIDES FOR REDUCING EMISSIONS OF A POLYURETHANE FOAM

    公开(公告)号:US20210139634A1

    公开(公告)日:2021-05-13

    申请号:US17152853

    申请日:2021-01-20

    摘要: The present invention relates to the use i) of one or more compounds selected from the group consisting of R1R2C═CR3—C(O)—O—R4  (I.), R5R6C═CR7—C(O)—O—R8—O—(O)C—R9C═CR10R11  (II.), R12R13C═CR14—C(O)—O—(O)C—R14C═CR13R12  (III.) and R15R16C═CR17—C(O)—NR18—R19  (IV.), wherein R1 and R2, R4 to R7 and R9 to R19 independently of one another represent H, a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or an aromatic or araliphatic radical having up to 20 carbon atoms which may optionally contain heteroatoms such as N, S or O and which may optionally be substituted, for example by isocyanate-reactive groups, preferably by OH groups, R3 represents H, and R8 represents a saturated or unsaturated, linear or branched, aliphatic divalent radical having up to 20 carbon atoms which may optionally contain heteroatoms such as N, S or O and which may optionally be substituted, for example by isocyanate-reactive groups, preferably by OH groups, and/or ii) of polyester polyols, preferably polyester diols, obtainable by polycondensation of maleic acid, fumaric acid, methacrylic acid or acrylic acid with oligomeric diols such as butanediol, diethylene glycol, propylene glycol, 1,3-propanediol and/or triols such as glycerol having a molecular weight factor per double bond of 150 to 3000, a functionality of 2 to 6, a hydroxyl number of 20 to 800 and an acid number of 0 to 15 in processes for producing polyurethanes, preferably polyurethane foams, for reducing the aldehyde emission of the resulting polyurethanes/polyurethane foams, to a process for producing polyurethanes, preferably polyurethane foams, using one or more compounds of formula IV and to polyurethanes obtainable from this process.