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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12729278 B1

PDFFull Text
Date of Patent:
Sep. 08, 2026

Filed:

May. 22, 2024

Process for producing isocyanate-based foam construction boards

Applicant:

Amrize Technology Switzerland Llc, Zug, CH;

Inventors:

John Letts, Carmel, IN (US);

Chunhua Yao, Carmel, IN (US);

Michael Hubbard, Goshen, IN (US);

Assignee:

Amrize Technology Switzerland LLC, Zug, CH;

Attorneys:

Renner, Kenner

Arthur M. Reginelli

Primary Examiner:

Carson Gross

Int. Cl.
CPC ...
C08J 9/00 (2006.01); B32B 5/20 (2006.01); B32B 37/15 (2006.01); C08G 18/08 (2006.01); C08G 18/42 (2006.01); C08G 18/76 (2006.01); C08J 9/14 (2006.01);
U.S. Cl.
CPC ...
C08J 9/0023 (2013.01); B32B 5/20 (2013.01); B32B 37/15 (2013.01); C08G 18/14 (2013.01); C08G 18/42 (2013.01); C08G 18/7671 (2013.01); C08J 9/141 (2013.01); C08J 9/142 (2013.01); C08J 9/149 (2013.01); B32B 2266/0278 (2013.01); B32B 2266/08 (2013.01); B32B 2419/00 (2013.01); C08J 2201/022 (2013.01); C08J 2203/12 (2013.01); C08J 2203/14 (2013.01); C08J 2203/182 (2013.01); C08J 2205/052 (2013.01); C08J 2205/10 (2013.01); C08J 2207/00 (2013.01); C08J 2375/06 (2013.01);
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 (δ) that is greater than 17 MPa; and (iii) mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.

Find Patent Forward Citations

Letts, John. (2026). Process for producing isocyanate-based foam construction boards (U.S. Patent No. 12729278). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12729278

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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