US 2026/0103578 A1 · METHOD TO PRODUCE FROTH FOAM

Abstract

The present disclosure provides a method to produce a froth polyurethane foam using storage stable components. The method comprises preparing an A component, which comprises an isocyanate; preparing a B component, which comprises an isocyanate-reactive compound, and generating a foam by mixing the A component and the B component at a low pressure; wherein the A component or the B component or both further comprise a blowing agent comprising E-1,1,1,4,4,4-hexafluoro-2-butene (E-HFO-1336mzz) and one or more of a co-blowing agent chosen from carbon dioxide, nitrogen, or 1,1-difluoroethane (HFC-152a).

Claims23

Dependent claims

A method for the generation of a foam comprising:

(a) preparing an A component, which comprises an isocyanate;
(b) preparing a B component, which comprises an isocyanate-reactive compound, and
(c) generating a foam by mixing the A component and the B component at a low pressure;
wherein the A component or the B component or both further comprise a blowing agent comprising E-1,1,1,4,4,4-hexafluoro-2-butene (E-HFO-1336mzz) and one or more of a co-blowing agent chosen from carbon dioxide, nitrogen, or 1,1-difluoroethane (HFC-152a);
and wherein the low pressure is at least about 50 psi and up to about 500 psi (at least about 0.34 up to about 3.4 MPa).

2 more elements

Dependencies are inferred from the claim text.

Method to produce froth foam

Life of this patent

Method to produce froth foam

Life of this patent

Abstract

Claims23