Ethylene Vinyl Acetate Copolymer Emulsion

Polymerization leads to vae copolymers.

Ethylene vinyl acetate copolymer emulsion. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used. We manufacture these high performance emulsions in all three major regions of the world at our facilities throughout north america europe and asia. The synthesis method comprises the processes of pre emulsification emulsion polymerization reaction finishing and defoaming. Vinyl acetate ethylene vae copolymers are water based emulsions that offer considerable performance advantages over polyvinyl acetate pva homopolymer adhesive glue due to the ability to alter their glass transition temperature tg c through the incorporation of ethylene monomer.

Low odor coating composition for the paper was based on a vinyl acetate ethylene copolymer emulsion. The invention relates to vinyl acetate ethylene copolymer emulsion vae emulsion and a synthesis method thereof. Ethylene vinyl acetate emulsion. In the general formulation it can be combined with plasticizers solvents thickening agents extenders etc.

Toughness vinyl acetate and flexibility ethylene. In contrast to the emulsion polymerization of vinyl acetate the syntheses of vinyl acetate ethylene copolymers utilize high pressure reactions ranging from 20 to 60 bar or even more. Sumielite series is a product line of water based emulsions composed of ethylene vinyl chloride copolymer. Pvac copolymer emulsion glue of vinyl acetate vam and acrylic acid vaa polyacrylamide copolymer used as flocculation agent in water treatment polymethyl methacrylate is the clear break resistant sheeting sold as acrylic glass or simply acrylic sheet or under the trade name plexiglas perspex etc.

Vae copolymers form the basis for engineering different properties in the individual end application. Acetate and vinyl chloride and acrylic ethylenevinyl acetate copolymer resins. Eva emulsion is a general purpose copolymer water based emulsion that can be used in the film bonding paper bonding floor wall and ceiling adhesive. 52 the low odor performance is partially attributed to factors such as the structure composition properties of the vinyl acetate ethylene copolymer emulsion and its advantages over commonly used styrene butadiene copolymer emulsion.

The invention is characterized in that complex emulsifying agents added into a reaction system include a non ion emulsifying agent an anion emulsifying. Ethylene vinyl acetate eva also known as poly ethylene vinyl acetate peva is the copolymer of ethylene and vinyl acetate the weight percent of vinyl acetate usually varies from 10 to 40 with the remainder being ethylene.