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.:
Date of Patent:
Sep. 03, 2024
Filed:
Aug. 02, 2018
Dow Global Technologies Llc, Midland, MI (US);
Zhengming Tang, Shanghai, CN;
Hongliang Chen, Shanghai, CN;
Jian Zou, Shanghai, CN;
Shaoguang Feng, Shanghai, CN;
Steven Zhang, Shanghai, CN;
Degang Zhang, Shanghai, CN;
Ping Zhang, Shanghai, CN;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one acetoacetate ester or amide and at least one aminoalcohol or alkylhydroxylamine. Foams so produced emit low levels of formaldehyde, acetaldehyde and propionaldehyde.