Heat Distortion Temperature (softening temperature) The molecular structure of PVC is made of continuous carbon- carbon single bonds in the main chain. As this main chain is highly flexible, PVC products have the disadvantage of having a low heat distortion temperature (softening temperature) compared with other plastics of the similar molecular structure.
This philosophy greatly impacted the Greek civilization. Athens was the intellectual center of Greece. It was one of the first city-states of its time, and is still world renowned as one of the most famous cities in the world. It was named after Athena, the goddess of wisdom and the city's patron.his philosophy greatly impacted the Greek civilization. Athens was the intellectual center of Greece. It was one of the first city-states of its time, and is still world renowned as one of the most famous cities in the world. It was named after Athena, the goddess of wisdom and the city's patron.
Athens /athens/ [2 sylls.] as a boys' name is of Greek origin. Place name: the capital of Greece. Athens is considered the cradle of democracy, and there are many cities in the US with this name.Kreatif forms: Aaathens, Athensaa, Athensae.thens is an uncommon given name for men but a very popular last name for all people (#37429 out of 150436, Top 25%).