Flexible Foams with Reduced Aldehyde Emissions

Patent Title: POLYURETHANE FOAMS HAVING LOW LEVELS OF ALDEHYDE EMISSIONS  Number/Link: WO2018/145283 Applicant/Assignee:   Dow Publication date: 16 August 2018 “Gist”: Cyclic 1,3-diketones are used as aldehyde scavengers Why it is interesting: Aldehyde emissions from flexible polyurethane foams (and many other materials) remain an issue and have been discussed a number of times before in […]

PU Flexible Foams with Reduced Acetaldehyde Emissions

Title: METHOD FOR THE REDUCTION OF ALDEHYDE EMISSION IN POLYURETHANE FOAM Number/Link: WO2017/134296 Applicant/Assignee: Huntsman Publication Date: 10 August 2017 “Gist”: Cyanoacetamide is used as aldehyde scavenger Why it is interesting: Reduction of aldehyde emissions from (especially flexible) polyurethane foams remains an important issue and has already been discussed a number of times on this […]

Polyurethane Foams with Reduced Acetaldehyde Emissions

Patent Title: POLYURETHANES WITH REDUCED ALDEHYDE EMISSION  Number/Link: WO2015/189095 Applicant/Assignee: BASF Publication date: 17-12-2015 “Gist”: A polymer with pending -O-NH2 groups is used as additive Why it is interesting: The reduction of VOC emissions, especially emissions of aldehydes from PU foams, remains an important topic of research. A number of solutions have been proposed, for […]

Polyurethanes with Reduced Aldehyde Emissions

Title: POLYURETHANES HAVING REDUCED ALDEHYDE EMISSION  Number/Link:WO2015/082316 (German) Applicant/Assignee: BASF Publication date: 11-06-2015 “Gist”: Use of CH-acidic compounds as aldehyde scavengers Why it is interesting: Reducing VOC emissions, and especially aldehyde emissions, from polyurethane systems remains an important research topic and has been discussed before on this blog (see e.g.  here and here). To reduce aldehyde emissions, […]

Reducing Aldehyde Emissions from Polyurethane Foams

Title: USE OF PENTAETHYLENE HEXAMINE IN THE PRODUCTION OF POLYURETHANE SYSTEMS  Number/Link: WO2015/071065 (German) Applicant/Assignee: Evonik Publication date: 21-05-2015 “Gist”: Use of pentaethylenehexamine to reduce aldehyde emissions Why it is interesting: As mentioned in previous posts, the reduction of formaldehyde and acetaldehyde emissions from polyurethane foams remains a pressing environmental issue. According to this patent application the problem […]