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VDC copolymer latices

Coating speeds in excess of 305 m/min can be attained. The latex coating can be dried in forced-air or radiant-heat ovens (240,241). Multiple coats are applied, particularly in paper coating, to reduce pinholing (242). A precoat is often used on porous substances to reduce the quantity of the more expensive VDC copolymer latex needed for covering (243). The properties of a typical coating are listed in Table 23. [Pg.9031]

Vinylidene Chloride Copolymer Latex. Vinyhdene chloride polymers are often made in emulsion, but usuaUy are isolated, dried, and used as conventional resins. Stable latices have been prepared and can be used direcdy for coatings (171—176). The principal apphcations for these materials are as barrier coatings on paper products and, more recently, on plastic films. The heat-seal characteristics of VDC copolymer coatings are equaUy valuable in many apphcations. They are also used as binders for paints and nonwoven fabrics (177). The use of special VDC copolymer latices for barrier laminating adhesives is growing, and the use of vinyhdene chloride copolymers in flame-resistant carpet backing is weU known (178—181). VDC latices can also be used to coat poly(ethylene terephthalate) (PET) bottles to retain carbon dioxide (182). [Pg.442]

Vinylidene chloride monomer is produced commercially in the United States by The Dow Chemical Co. and PPG Industries. The monomer is produced in Europe by Imperial Chemical Industries, Ltd. and Solvin. The monomer is produced in Japan by the Asahi Chemical Co., Kureha Chemical Industries, and Kanto Denka Kogyo Co. Commercial suppliers of VDC copolymers include The Dow Chemical Co. in the United States and Solvin in Europe. Asahi Chemical Co. and Kureha Chemical Industries are suppliers of VDC resins in Japan. Additional manufacturers of exclusively VDC latexes include W. R. Grace and Rohm Haas in the United States, and Scott-Bader in Europe. Local suppliers of VDC resins have also been reported in Russia and the People s Republic of China. [Pg.9021]

VdC/EA/MMA teipolymer (latex) Vinyl chloride/vinyl acetate copolymer Vinylidene chloride Vinylidene chloride/vinyl chloride copolymer Formaldehyde Vinyl chloride Epichlorbhydrin Polyvinyl chloride (latex) Polyvinyl chloride (general) Thermoplastic polyurethane Polycarbonate (flame resistant) Polyurethane flexible foam Polycarbonate (general) Polyurethane rigid foam Acrolein MDI Phosgene TDI... [Pg.267]

Poly(vinylidene chloride) latices can be easily prepared by the same methods but have few uses because they do not form films. Copolymers of high VDC content are film-forming when freshly prepared but soon crystallize and lose this desirable characteristic. Because crystallinity in the final product is very often desirable, eg, in barrier coatings, a significant developmental problem has been to prevent crystallization in the latex during storage and to induce rapid... [Pg.9030]


See other pages where VDC copolymer latices is mentioned: [Pg.443]    [Pg.358]    [Pg.443]    [Pg.9032]    [Pg.697]    [Pg.697]    [Pg.877]    [Pg.877]    [Pg.443]    [Pg.358]    [Pg.443]    [Pg.9032]    [Pg.697]    [Pg.697]    [Pg.877]    [Pg.877]    [Pg.193]    [Pg.9018]    [Pg.9031]    [Pg.638]    [Pg.360]    [Pg.442]    [Pg.442]    [Pg.4684]    [Pg.39]   
See also in sourсe #XX -- [ Pg.25 , Pg.735 ]




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Copolymer latices

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