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Which of the following materials is used for solventless laminating?

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+1 vote
in Food Packaging Technology by (63.0k points)
Which of the following materials is used for solventless laminating?

(a) Sodium silicate

(b) Polyester isocyanate

(c) Rubber latex

(d) Dextrin

This question was addressed to me during an interview.

My query is from Coating and Laminating in Thermoplastics in section Thermoplastic Polymers Properties & Processing of Food Packaging Technology

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The correct answer is (b) Polyester isocyanate

Explanation: Polyester isocyanate is used for solventless laminating. Solventless laminating is the process of bonding together two webs by curing in absence of solvents. Polyester isocyanates is used for curing the laminate.

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