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US 2020/0392279 A1Published application
Polyol compositions for foam insulation
AssigneeInvista North America S.A.R.L.
InventorCarina Araullo MCADAMS
Life of this patent
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Abstract
The present invention relates to emulsion compositions of modified polyester polyols and a method of preparing such modified polyester polyol emulsions that are useful in the formulation of polyurethane and polyisocyanurate cellular polymers for use in making foam articles.
Claims26
A foam precursor comprising:
- a. polyol;
- b. R-value enhancing additive comprising a compound selected from aryl diols, substituted aryl diols, aryl triols, substituted aryl triols and combinations thereof;
- and
- c. surfactant, wherein the HLB number of the surfactant is from 5 to 20 on Griffin's scale.
1 more element
A foam composition comprising:
- a. aromatic polyester polyol;
- b. R-value enhancing additive comprising a compound selected from aryl diols, substituted aryl diols, aryl triols, substituted aryl triols and combinations thereof;
- c. surfactant, wherein the HLB number of the surfactant is from 5 to 20 on Griffin's scale;
- d. an isocyanate;
- and
- e. blowing agent.
3 more elements
A closed-cell foam reaction product of polyester polyol, isocyanate, R-value enhancing additive and surfactant formed in the presence of blowing agent, wherein:
- a. the R-value enhancing additive comprises a compound selected from aryl diols, substituted aryl diols, aryl triols, substituted aryl triols and combinations thereof;
- and
- b. the concentration of the surfactant on the surfaces of the closed cells is greater than the concentration of the surfactant in the bulk of the cell walls.
Dependencies are inferred from the claim text.