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JP-2026076294-A - Polyester polyol composition containing HF0-1336MZZM(Z)

JP2026076294AJP 2026076294 AJP2026076294 AJP 2026076294AJP-2026076294-A

Abstract

[Problem] To provide a blend, a polyol premix composition, a method for forming such a composition, a foaming composition using the premix composition, a method for preparing a foam containing the premix composition, and a foam produced using the premix composition. [Solution] The polyol premix composition comprises a polyester polyol, a halogenated olefin blowing agent, and a distribution-enhancing component. In the polyol premix composition, the blowing agent, the polyester polyol, and the distribution-enhancing component form a substantially homogeneous composition. [Selection Diagram] None

Inventors

  • メアリー・シー・ボグダン
  • デイヴィット・ジェイ・ウィリアムズ
  • イウ・ケイ・リング
  • ロナルド・エス・グロスマン
  • ビン・ユー

Assignees

  • ハネウェル・インターナショナル・インコーポレーテッド

Dates

Publication Date
20260511
Application Date
20260209
Priority Date
20170623

Claims (20)

  1. A polyol premix composition, halogenated olefin blowing agent, Polyester polyol and A polyol premix composition comprising a distribution-enhancing component comprising at least one organic compound having 1 to 40 carbon atoms, wherein the at least one organic compound is present in the premix in an amount effective to enhance the ability of the halogenated blowing agent and the polyol to form a stable and substantially homogeneous blend that remains substantially homogeneous when stored under ambient conditions for a period of four months.
  2. The polyol premix composition according to claim 1, wherein the distribution-enhancing component has one or more hydroxyl groups and 1 to 25 carbon atoms.
  3. The polyol premix composition according to claim 2, wherein the distribution-enhancing component comprises an alcohol, glycol, ether, acetal, benzene, ketone, chlorinated solvent, carbonate, solvent, and surfactant.
  4. The polyol premix composition according to claim 3, wherein the halogenated olefin blowing agent comprises cis-1,1,1,4,4,4-hexafluorobuta-2-ene.
  5. The distribution-enhancing component comprises one or more of the following: acyclic alcohols having 1 to 10 carbon atoms, cyclic alcohols having 6 to 40 carbon atoms, alkylphenols and alkylphenol ethoxylates, dipropylene glycol, diisopropylene glycol, dipropylene glycol methyl ether, methylal, ethylene glycol mono-butyl ether, 1,3-diisopropylbenzene, isopropylbenzene, 1,3-diisopropenylbenzene, isopropenylbenzene, acetone, methyl ethyl ketone, 2-chloropropane, trans-1-chloro-3,3,3-trifluoropropene, methyl formate, propylene carbonate, dioctyl phthalate, and toluene. The polyol premix composition according to claim 1, wherein the halogenated olefin blowing agent comprises cis-1,1,1,4,4,4-hexafluorobuta-2-ene.
  6. The polyol premix composition according to claim 5, wherein the distribution-enhancing component comprises one or more of ethanol, methanol, isopropanol, n-butanol, 2-propanol, 1-pentanol, 3-methyl-2-butanol, and 2-methyl-1-propanol.
  7. The polyol premix composition according to claim 1, wherein the distribution-enhancing component is present in an amount of 0.5% to 10% by weight based on the total amount of the blend.
  8. A polyol premix composition, Polyester polyol and halogenated olefin blowing agent, A polyol premix composition comprising a distribution-enhancing component comprising at least one organic compound having 1 to 40 carbon atoms, wherein the distribution-enhancing component is present in the polyol premix composition in an amount effective in enhancing the ability of the halogenated olefin blowing agent and the polyester polyol to form a stable and substantially homogeneous composition.
  9. The polyol premix composition according to claim 8, wherein the distribution-enhancing component has one or more hydroxyl groups and 1 to 25 carbon atoms.
  10. The polyol premix composition according to claim 8, wherein the distribution-enhancing component comprises one or more of the following: alcohol, glycol, ether, acetal, benzene, ketone, chlorinated solvent, carbonate, solvent, and surfactant.
  11. The polyol premix composition according to claim 8, wherein the halogenated olefin blowing agent comprises cis-1,1,1,4,4,4-hexafluorobuta-2-ene.
  12. The polyol premix composition according to claim 11, wherein the distribution-enhancing component is present in an amount of at least 1.7% by weight of the polyol premix composition and comprises one or more of ethanol, methanol, isopropanol, n-butanol, 2-propanol, 1-pentanol, 3-methyl-2-butanol, and 2-methyl-1-propanol.
  13. The polyol premix composition according to claim 8, wherein the polyester polyol and any additional polyol are present in an amount of 50% to 98% by weight of the polyol premix composition, the halogenated olefin blowing agent is present in an amount of 0.25% to 50% by weight of the polyol premix composition, and the distribution strengthening component is present in an amount of 0.01% to 10% by weight of the polyol premix composition.
  14. The polyol premix composition according to claim 8, wherein the polyester polyol and any additional polyol are present in an amount of 80% to 95% by weight of the polyol premix composition, the halogenated olefin blowing agent is present in an amount of 0.25% to 10% by weight of the polyol premix composition, and the distribution strengthening component is present in an amount of 0.01% to 10% by weight of the polyol premix composition.
  15. The polyol premix composition according to claim 8, wherein the stable and substantially homogeneous composition remains a substantially homogeneous mixture when stored under ambient conditions for a period of four months.
  16. A method for forming a polyol premix composition, A method comprising combining a polyester polyol, a halogenated olefin blowing agent, and a distribution-enhancing component comprising at least one organic compound having 1 to 40 carbon atoms, wherein the distribution-enhancing component is present in the polyol premix composition in an amount sufficient to enhance the ability of the halogenated olefin blowing agent and the polyester polyol to form a stable and substantially homogeneous composition.
  17. The method according to claim 16, wherein the distribution-enhancing component comprises an alcohol, glycol, ether, acetal, benzene, ketone, chlorinated solvent, carbonate, solvent, and surfactant, and the halogenated olefin blowing agent comprises cis-1,1,1,4,4,4-hexafluorobuta-2-ene.
  18. The method according to claim 16, wherein the stable and substantially homogeneous composition remains a substantially homogeneous mixture when stored under ambient conditions for a period of four months.
  19. A foaming composition comprising a mixture of an organic polyisocyanate and the polyol premix composition described in claim 8.
  20. The foaming composition according to claim 19, wherein the organic polyisocyanate comprises polymethylene polyphenyl isocyanate, methylene bis(phenyl isocyanate), toluene diisocyanate, or a combination thereof.

Description

Cross-reference of related applications: This application claims priority to U.S. application No. 15/631,709, filed on June 23, 2017, which in turn claims priority to U.S. provisional application No. 62/366,437, filed on July 25, 2016, the contents of which are incorporated herein by reference. This invention relates to polyurethanes and polyisocyanurate foams, and methods for preparing them. More specifically, this invention relates to rigid, semi-rigid, and flexible polyurethanes and polyisocyanurate foams, and methods for preparing them using halogenated olefins and polyester polyols as blowing agents containing cis-1,1,1,4,4,4-hexafluorobuta-2-ene (HFO-1336mzzm(Z)). The class of foams known as low-density, rigid, semi-rigid, and flexible polyurethane or polyisocyanurate foams is useful in a wide range of insulation applications, including roofing systems, building panels, building envelope insulation, refrigerators and freezers, seat cushions, mattresses, shoe soles, and packaging materials. A key factor in the large-scale commercial acceptance of rigid polyurethane foams is their ability to provide a good balance of properties. Rigid closed-cell polyurethane and polyisocyanurate foams are known to offer excellent thermal insulation, excellent fire resistance, and excellent structural properties at reasonably low densities. Semi-flexible and flexible polyurethane foams are known to offer excellent cushioning and energy absorption properties. The foam industry has historically used certain liquid fluorocarbon materials as blowing agents because they are easy to use under typical processing conditions. Certain fluorocarbons can act as blowing agents not only due to their volatility, but also, in the case of closed-cell foams, are conjugated into the closed-cell structure of rigid foams and are a major cause of the low thermal conductivity of rigid polyurethane foams. The use of certain fluorocarbon materials as preferred commercial expanders or blowing agents in insulating foam applications is partly based on the resulting k-factor associated with the foam produced. The k-factor is defined as the rate of thermal energy transfer by conduction through a 1-inch thick, 1-square-foot homogeneous material with a 1°F difference across two perpendicular surfaces of the material per hour. Since the use of many closed-cell polyurethane foams is partly based on the foam's thermal insulation properties, it is advantageous to identify materials that produce foams with lower k-factors. In the case of flexible polyurethane foams, certain fluorocarbon-containing physical blowing agents are used to reduce the density of these foams to levels that are difficult to achieve with water alone. It is known in the art that polyurethanes and polyisocyanurate foams can be produced by reacting polyisocyanates with polyols in the presence of blowing agents, catalysts, surfactants, and optionally other components. For many applications, the blowing agent should be substantially homogeneously distributed within the polyol components. The heat generated when the polyisocyanate reacts with the polyol volatilizes the blowing agent contained in the liquid mixture, forming bubbles within it. As the polymerization reaction proceeds, the liquid mixture becomes a polymeric, cellular solid, encapsulating the blowing agent within the cells of the foam in the closed-cell foam. In many applications, if a surfactant is not used in the foaming composition, the bubbles either simply pass through the liquid mixture without forming a foam, or form a foam with large, irregular cells that are unsuitable for a rigid foam. Furthermore, if the blowing agent is not substantially homogeneously distributed in the foaming composition during foaming, an irregular and inconsistent foam is formed. Suitable blowing agents include certain fluorinated carbon, chlorocarbon, chlorofluorocarbon, hydrohaloolefin, hydrocarbons, ethers, esters, aldehydes, ketones, acetals, organic acids, atmospheric gases, materials that produce gases, such as CO2, through decomposition or chemical reactions (such as, but not limited to, water, formic acid, and azodicarbonamide), and mixtures of two or more of these. Preferred blowing agents have a low potential for global warming. These blowing agents include certain hydrohaloolefins, including hydrofluoroolefins (HFO) (including hydrochlorofluoroolefins (also known as HFCO)). Of particular interest are trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), cis-1,1,1,4,4,4-hexafluorobuta-2-ene (HFO-1336mzz(Z)), and trans-1-chloro-3,3,3-trifluoropropene (HFO-1233zd(E)). A process for producing 1,3,3,3-tetrafluoropropene is disclosed in U.S. Patents 7,230,146 and 7,189,884. A process for producing 1-chloro-3,3,3-trifluoropropene is disclosed in U.S. Patents 6,844,475 and 6,403,847. As used herein, "(E)" represents the trans isomer of the molecule, and "(Z)" represents the cis isomer. Providing components for polyurethane or polyisocyanurate foa