If you are experiencing carburetor issues where the engine seems to run richer than it should, you might want to look at the fuel pressure. Most engines are not equipped with a pressure gauge, but it ...

Diisocyanates are used in the preparation of all polyurethanes, ranging from the foams used in shoe soles to the thermoplastics used in cell phone cases.

Researchers at the Fraunhofer Institute for Applied Polymer Research IAP have developed a foil that changes into polyurethane foam (PU foam) when heated—entirely without health risks.

School of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology, Guangzhou 510640, China ...