Ethylene Vinyl Chloride Copolymer

It also has excellent stretch properties at high temperature making it ideal as a material for secondary processing such as vacuum molding.

Ethylene vinyl chloride copolymer. The vinyl chloride ethylene copolymer content of the aqueous extract can be determined by determining the organic chlorine content and calculating the amount of copolymer equivalent to the organic chlorine content. Incorporating ethylene vinyl acetate eva copolymer in the pama is also another modification strategy which is useful in the heavy fuel or crude oil flow improver application. The emulsions are prepared by incorporating 4 to 10 wt tetramethylol glycoluril based on the total weight of the emulsion copolymer into an aqueous disperson of a copolymer consisting. Vinyl chloride is an organochloride with the formula h 2 c chcl that is also called vinyl chloride monomer vcm or chloroethene this colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride pvc.

Aqueous emulsions containing an ethylene vinyl chloride evcl copolymer and tetramethylol glycoluril are described for use as binder compositions suitable for application onto nonbonded filter paper. This article is cited by 32 publications. Ethylene vinyl acetate eva copolymers ethylene vinyl acetates are leading polymers for hot melt manufacturing due to their high versatility. Vinnol 4500 emulsion polymer having a higher vinyl chloride content than vinnol 728 has a lower moisture vapor transmission rate mvtr and also better nonflammability characteristics.

About 13 billion kilograms are produced annually. The eva copolymer which is based on a medium proportion of va approximately 4 to 30 is referred to as thermoplastic ethylene vinyl acetate copolymer and is a thermoplastic elastomer material. Estimation of free energy of polymer blends. 26 eva copolymers usually comprising a vinyl ester content of 15 40 have been identified to be effective flow improvers for crude oils and middle distillates.

Eva based hot melts are able to fulfill various requirements in applications such as packaging bookbinding or label sticking. 3 vinyl chloride ethylene copolymer content of aqueous extract i principle. Kanevinyl m series which is a vinyl chloride vinyl acetate copolymers has outstanding fluidity in its molten state and is suited to processing at low temperatures.