Patent · US Active

Process for producing isocyanate-based foam construction boards

US11174364B2 · kind B2 · utility

2Cited by

15References

8Claims

0Family size

Assignee

Firestone Building Products Company, LLC · US

Inventors

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

Key dates

Filing date	Dec 3, 2016
Grant date	Nov 16, 2021
Priority date	—
Expiry date	Dec 3, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2375/06
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising: (i) providing an A-side reactant stream that includes an isocyanate-containing compound; (ii) providing a B-side reactant stream that includes a polyol, where the B-side reactant stream includes a blowing agent that includes a pentane and a blowing agent additive that has a Hansen Solubility Parameter (8t) that is greater than 17 MPa°′5; and (iii) 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.