Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA) ?

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Silicone resins, which are highly water repellent and has good heat resistance cannot be used___________________?

A. As room temperature adhesive B. As grease & lubricant C. Hydraulic fluid for heat transfer D. Resin for lamination...

Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber ?

A. Carbon B. Alkylated diphenyl amine C. Thiokol D. Magnesium...

Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to _________________?

A. Protect rubber goods from attack by oxygen & ozone present in the atmosphere B. Reduce its viscosity to permit easier processing C. Reduce the time of vulcanisation and quantity of vulcanising agent D. Increase its viscosity...

Polyurethane cannot be used to make____________________?

A. Automobile cushion B. Thermal insulation in refrigerator C. Coating and adhesive D. Fibre reinforced plastic (FRP)...

Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is_______________________?

A. Ni B. V2O5 C. Fe D. Aluminium triethyl combined with titanium tetrachloride...