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AssigneeSanyo Chemical Industries, Ltd.
InventorsTetsuji Kawamoto, Tomio Kawazoe, Kiyoshi Ikeda, Munekazu Satake, Futoshi Kitatani, Tsuyoshi Tomosada, Takeshi Furuta, Takayuki Tsuji
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This invention provides a polymer polyol composition (I) comprising a polyol (A) and polymer particles (B) dispersed in (A), the polymer particles (B) being formed by polymerizing an ethylenically unsaturated compound (b) in a polyol, wherein the content of (B) in (I) is from 35 to 75 mass %, based on the mass of (I), and the amount of soluble polymers (P) dissolved in (A) is not more than 5 mass %, based on the mass of (A), and provides methods for producing the polymer polyol composition (I). Further, this invention provides a method for producing a foamed or non-foamed polyurethane resin, which method comprises reacting a polyol component with a polyisocyanate component in the presence or absence of a blowing agent, wherein the above polymer polyol composition is used at least as a portion of the polyol component. A polymer polyol having a low viscosity and excellent dispersion stability is provided even when having a high concentration of polymer particles, and is used advantageously to produce polyurethane resins having excellent 25% ILD (hardness) and compression set, or foams thereof, with good operation efficiency.
A polymer polyol composition (I) comprising a dispersion medium composed of a polyol (A), or (A) and a diluent (C), and polymer particles (B) dispersed in the dispersion medium, wherein the polymer particles (B) are formed by polymerizing an ethylenically unsaturated compound (b) in a polyol or in a polyol and the diluent (C);
A polymer polyol composition (I) comprising a dispersion medium composed of a polyol (A), or (A) and a diluent (C), and polymer particles (B) dispersed in the dispersion medium, wherein the polymer particles (B) are formed by polymerizing an ethylenically unsaturated compound (b) in a polyol or in a polyol and the diluent (C);
A polymer polyol composition (II) comprising a polyol (A) and polymer particles (B) dispersed in a dispersion medium composed of a polyol (A), or (A) and a diluent (C), wherein the polymer particles (B) are formed by polymerizing an ethylenically unsaturated compound (b) in a polyol;
A polymer polyol composition (III) comprising a polyol (A) and polymer particles (B) dispersed in a dispersion medium composed of a polyol (A), or (A) and a diluent (C), wherein the polymer particles (B) are formed by polymerizing an ethylenically unsaturated compound (b) in a dispersion medium comprising (A) in the presence of a dispersant (D′) to form polymer particles, and mechanically dispersing or crushing the polymer particles, and wherein a difference between a solubility parameter SPd of (D′) and a solubility parameter SPa of (A) is not more than 0.8.
A polymer polyol composition comprising a dispersion medium composed of a polyol (A), or (A) and a diluent (C), and polymer particles (B) dispersed in the dispersion medium, wherein the polymer particles (B) are formed by polymerizing an ethylenically unsaturated compound (b) in the dispersion medium in the presence of a dispersant (D), wherein at least 5 mass % of (b) comprises a terminal ethylenically-unsaturated group containing compound (b3) having a number-average molecular weight of 160 to 490 and a solubility parameter SPb of 9.5 to 13.
A polymer polyol composition comprising a dispersion medium composed of a polyol (A), or (A) and a diluent (C), and polymer particles (B) dispersed in the dispersion medium, wherein the polymer particles (B) are formed by polymerizing an ethylenically unsaturated compound (b) in the dispersion medium in the presence or absence of a dispersant (D), wherein at least 5 mass % of (b) comprises a terminal ethylenically-unsaturated group containing compound (b3) having a number-average molecular weight of 160 to 490 and a solubility parameter SPb of 9.5 to 13, (b3) being at least one compound selected from compounds (b31) to (b35) shown below:
A polymer polyol composition comprising a dispersion medium composed of a polyol (A), or (A) and a diluent (C), and polymer particles (B) dispersed in the dispersion medium, wherein the polymer particles (B) are formed by polymerizing the ethylenically unsaturated compound (b) in the dispersion medium, in the presence of 0.5 to 50 mass parts of a reactive dispersant (D1) with respect to 100 mass parts of (A), the reactive dispersant (D1) being an unsaturated polyol having a nitrogen-containing bond, which is formed by bonding a substantially saturated polyol (a) with a monofunctional active hydrogen compound (e) having at least one polymerizable unsaturated group via a polyisocyanate (f).
A polymer polyol composition comprising a dispersion medium composed of a polyol (A), or (A) and a diluent (C), and polymer particles (B) dispersed in the dispersion medium, wherein the polymer particles (B) are formed by polymerizing the ethylenically unsaturated compound (b) in the dispersion medium, in the presence of 0.1 to 80 mass parts of a reactive dispersant (D11) with respect to 100 mass parts of (A), the reactive dispersant (D11) being an unsaturated polyol having a nitrogen-containing bond, which is formed by bonding a substantially saturated polyol (a) with a monofunctional active hydrogen compound (e) having at least one polymerizable unsaturated group via a polyisocyanate (f), and whose average value of a ratio of a number of unsaturated groups to a number of nitrogen-containing bonds originating from an NCO group in one molecule of (D11) is 0.1 to 0.4.
Dependencies are inferred from the claim text.