Polymer Technology
Amino resins are used in paper treatment to improve its

Wet tear and bursting strength
Folding endurance
Wet rub resistance
All of these

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Polymer Technology
Identify the group in which all the polymers mentioned can be used to make fibres.

Cellulose derivatives, Polyisoprene, Polyethylene
Cellulose derivatives, Polyamides, Polyurathane
Butadiene copolymers, Polyamides, Urea aldehyde
Polypropylene, Poly vinyl chloride, Silicon

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