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2. Twinwall plastic - Wikipedia

   en.wikipedia.org/wiki/Twinwall_plastic

   A typical 6mm sheet has a density of 0.72 g/cm^2 [6] and a thermal insulation R value of 0.3 m^2°C/W, while allowing 80% of visible light pass through. [7] These attributes, coupled with a service temperature range in excess of 120 °C (-51 °C to 71 °C), makes polycarbonate the ideal material for twinwall application.

3. Poly(trimethylene carbonate) - Wikipedia

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

   Poly(trimethylene carbonate) (PTMC) is an aliphatic polycarbonate synthesized from the 6-membered cyclic carbonate, trimethylene carbonate (1,3-propylene carbonate or 1,3-Dioxan-2-one). Trimethylene carbonate (TMC) is a colorless crystalline solid with melting point ranging between 45°C and 48 °C and boiling point at 255°C (at 760 mmHg).

4. Vapor barrier - Wikipedia

   en.wikipedia.org/wiki/Vapor_barrier

   Polyethylene plastic sheet, 4 or 6 thou (0.10 or 0.15 mm), 0.03 US perm (1.7 SI perm). Advanced Polyethylene vapor retarders that pass the ASTM E 1745 standard tests ≤0.3 US perm (17 SI perm). Asphalt-coated kraft paper , often attached to one side of fiberglass batts, 0.40 US perm (22 SI perm).

5. Man documents inflated grocery prices in Alaskan hometown ...

   www.aol.com/man-documents-inflated-grocery...

   Butter was on sale for $8.14 per pound, a quart of orange juice was $9.79, a bag of tortilla chips was $11.29, a bag of Starbucks brand coffee was $17.43, a large box of cereal was on sale for $11 ...

6. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   (OC 6 H 4) 2 C(CH 3) 2 CO ) n + O 2, R* → (OC 6 H 4) 2 C(CH 3 CH 2)CO) n. This product can be further oxidized to form smaller unsaturated compounds. This can proceed via two different pathways, the products formed depends on which mechanism takes place. [38] Pathway A (OC 6 H 4) 2 C(CH 3 CH 2)CO + O 2, H* HO(OC 6 H 4)OCO + CH 3 COCH 2 (OC 6 ...

7. Coast Guard suspends search for missing 7-year-old boy after ...

   www.aol.com/coast-guard-suspends-search-missing...

   December 4, 2024 at 2:43 PM The United States Coast Guard announced on Sunday it would be suspending the search for a 7-year-old boy who went missing on Friday during a boating trip with two other ...