Patent EP-2554572-A1 (EP)
Inventor: LOBERT MATTHIAS
IPC: C08L83/12
Filed: 2012-07-03
Abstract: Producing polyurethane foam using polysiloxane compound (I) as a foam stabilizer, is claimed. Producing polyurethane foam using polysiloxane compound of formula ((R1a)-(Si)-(R)( 2)-O) a-((Si)-(R)-(Rp)-O) b 1-((Si)-(R)-(Rv)-O) b 2-((Si)-(R2)( 2)-O) c-((Si)-(R3)-(R2)-O) d-Si-(R)( 2)-(R1b)) (I) as a foam stabilizer, is claimed. R2 : (-(O-(Si)-(R)-(Rp)) b 1-(O-(Si)-(R)-(Rv)) b 2-(O-(Si)-(R2)( 2)) c-(O-(Si)-(R3)-(R2)) d-(O-(Si)-(R)( 2)) a-R1); a : 0-2000; b1, b2 : 0-60; c, d : 0-10; R : cyclic, optionally branched, optionally saturated 1-20C hydrocarbon, or 6-20C aromatic hydrocarbon; R1 : R or -OR4; R1a, R1b : R, Rv, Rp, or -OR4; R3 : R, optionally substituted with heteroatoms, optionally saturated organic group, preferably alkyl-, aryl-, chloroalkyl-, chloroaryl-, fluoroalkyl-, cyanoalkyl-, acryloxyaryl-, acryloxyalkyl-, methacryloxyalkyl- methacryloxypropyl- or vinyl-; R4 : 1-10C alkyl, preferably methyl, ethyl or isopropyl; Rp : -OR4, H, or unbranched 1-30C polyether made of alkylene oxide units, arylene units and/or glycidyl units with a weight average molecular weight of 200-30000 g/mol, bonded via Si-C bonds, and/or Si-C bonds bound aliphatic, cycloaliphatic and/or aromatic polyester or polyether ester with a weight average molecular weight of 200-30000 g/mol; Rv : group of formula (-Z1(-Q-M1 i1-M2 i2-M3 i3-M4 i4-M5 i5-M6 i6-M7 i7-M8 i8-M9 i9-M10 i10-M11 i11-M12 i12-M13 i13-J i14) i(X-J) k) (II) bound via Si-C bond; either i : 1-10, preferably 2-3; and k : 0-9, preferably 1-3; or i+k : 1-10, preferably 2-3; i1-i14 : 0-500, preferably 1-30; Q : O, NH, N-alkyl, N-aryl, or S; Z1 : organic group, whose C is linked to the respective Q; J : H, cyclic or optionally branched, optionally saturated 1-30C aliphatic or aromatic hydrocarbon, 1-30C carboxylic acid, or optionally saturated functional organic group substituted with heteroatom; M1 : (-CH 2-CH 2-O-); M2 : (-CH-(CH 3)-CH 2-O-); M3 : (-C-(X1)-(X2)-C-(X3)-(X4)-O-); X1-X4 : H, or cyclic, or optionally branched, optionally saturated 1-50C, preferably 2-50C aliphatic or aromatic hydrocarbon (optionally contain halo); M4 : (-CH-(CH 2-OY1)-CH 2-O-), where the monomers M1-M4 are freely permutable; Y1 : 2-30C cyclic, optionally branched, optionally saturated aliphatic or aromatic hydrocarbon (optionally contain heteroatoms); M5 : propyl-2,3-bis-(oxy); M6 : propyl-1,3-bis(oxy); M7 : (-CH 2-CH-(OH)-CH 2-O-); M8 : (-CH 2-CH-(CH 2-OH)-O-); M9 : (-C=(O)-O-); M10 : (-C=(O)-(C-(R1)-(R2)) n-O-); R1, R2 : H, 1-15C alkyl, alkoxy, aryl or aralkyl; n : 3-8; M11 : cyclic moiety of formula (III); either R3, R4, R5, R6 : H, alkyl, alkenyl, alkoxy, aryl or aralkyl; or R4, R5 : cycloaliphatic or aromatic, which are bridged via the fragment T; m, o : 1-8; T : divalent alkylene- or alkenylene-; M12 : 2-ethylpropyl-1,3-diyl-bis(oxy); and M13 : (-CH 2-C-(CH 2-CH 3)-(CH 2-OH)-(CH 2-O)-), where the monomers M1-M13 are arranged in any proportions, preferably in both block-wise, alternating or in a statistical manner, and exhibits a distribution gradient. Provided that: the groups X1-X4 are selected such that M3 does not represent M1 or M2; the group i9 is greater than 0; (II) contain at least one unit, preferably M12, M5 or M6, in which the group J is connected directly at any end, and at least one unit, preferably M1, M2 or M3 are connected at each end, and two monomer M9 units are not consecutive to each other; an average of at least one group Rv is present per molecule of (I); the sum of the indices b1 and b2 is b; an average number of sum of indices a of the D-units, per molecule is not > 2000 per molecule of (I); an average number of sum of indices b of the Rp- and Rv-carrying units per molecule is not > 100 per molecule of (I); the sum of an average number of total number of indices c, and d per molecule is not > 20 per molecule of (I); and (I) contains not > 20 mole% of the groups Rp, R1, R1a, R1b and -OR4. Independent claims are also included for: (1) a composition for producing the polyurethane foams, comprising at least one polyol component, a catalyst that catalyzes the formation of urethane- or isocyanurate bond, and optionally a propellant, (I), optionally additional additives, and optionally an isocyanate component; and (2) polyurethane foam produced using (I). [Image].