Patent · US Active

Process for producing isocyanate-based foam construction boards

US12006414B2 · kind B2 · utility

0Cited by

16References

22Claims

0Family size

Assignee

Holcim Technology Ltd · CH

Inventors

John B. Letts · Carmel, US
Chunhua Yao · Carmel, US
Michael J. Hubbard · Anderson, US

Key dates

Filing date	Nov 8, 2021
Grant date	Jun 11, 2024
Priority date	—
Expiry date	Nov 15, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2375/04
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising of providing an A-side reactant stream that includes an isocyanate-containing compound; providing a B-side reactant stream that includes a polyol, where the B-side reactant steam includes a blowing agent mixture including isopentane and a blowing agent additive that has a Hansen Solubility Parameter (δt) that is greater than 15 MPa0.5; and mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.