Formaldehyde Resins

Elastomers/Fibres || Thermoplastics and Thermosetting Polymers || Nylon || Bakelite || Melamine Formaldehyde Resin || Biodegradable Polymer

Match the column : {:(,"Polymer",,"Commercial name",),((i),"Polyester of glycol and phthalic acid",(a),"Novolac",),((ii),"Copolymer of 1,3-butadiene and styrene",(b),"Glyptal",),((iii),"Phenol and formaldehyde resins",(c ),"Buna-S",),((iv),"Polyester of glycol and terephthalic acid ",(d),"Buna-N",),((v),"Copolymer of 1,3-butadiene and acrylonitrile",(e),"Dacro",):}

Which of the following statements are incorrect about phenol formaldehyde resin ?