Polymer Technology
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is

Polyvinyl butyral
Polyvinyl acetale
Polyvinyl alcohol
PVC

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Polymer Technology
Dacron is a

None of these
Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol
Condensation polymerisation product of hexamethylene diamine and adipic acid
Thermosetting material

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