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2. Poly(methyl methacrylate) - Wikipedia

   en.wikipedia.org/wiki/Poly(methyl_methacrylate)

   PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Hesalite, Plexiglas, Acrylite, Lucite, and Perspex, among several others . This plastic is often used in sheet form as a lightweight or shatter-resistant alternative to glass. It can also be used as a casting resin, in inks and coatings, and for many ...

3. Foam rubber - Wikipedia

   en.wikipedia.org/wiki/Foam_rubber

   Foam rubber yoga mat. Foam rubber (also known as cellular rubber, sponge rubber, or expanded rubber) is rubber that has been made with a foaming agent so that its structure is an air-filled matrix. Commercial foam rubber is generally made of synthetic rubber, natural latex, or polyurethane. Latex foam rubber, used in mattresses, is well known ...

4. Environmental stress cracking - Wikipedia

   en.wikipedia.org/wiki/Environmental_stress_cracking

   According to ASTM D883, stress cracking is defined as "an external or internal crack in a plastic caused by tensile stresses less than its short-term mechanical strength". This type of cracking typically involves brittle cracking, with little or no ductile drawing of the material from its adjacent failure surfaces. [ 1 ]

5. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

6. US senators vow action after briefing on Chinese Salt Typhoon ...

   www.aol.com/news/us-agencies-brief-senators...

   WASHINGTON (Reuters) -U.S. government agencies held a classified briefing for all senators on Wednesday on China's alleged efforts known as Salt Typhoon to burrow deep into American ...

7. US hits JetBlue with $2 million penalty over chronic flight ...

   www.aol.com/news/us-hits-jetblue-2-million...

   WASHINGTON (Reuters) -The U.S. Transportation Department imposed a $2 million penalty on JetBlue Airways for operating four chronically delayed flights on domestic routes - the first time it has ...