Chlorinated Polyolefin

Chlorinated Polyolefin


a synthetic polymer; a chlorinated product of polyethylene or polypropylene.

Chlorinated polyolefins are noted for their varied properties, which depend on the type, molecular weight, and structure of the initial polymer, as well as on the method of chlorine addition and the chlorine content. For example, chlorinated polyethylene products containing up to 15 percent chlorine are plastics; 16 to 25 percent, thermoelastic plastics; 26 to 48 percent, elastomers (rubber); 49 to 60 percent, stiff, leather-like materials; and 61 to 75 percent, brittle resins. Those containing 61 to 70 percent chlorine have properties similar to the properties of polyvinyl chloride. The density of chlorinated polyethylene products varies from 0.92 to 1.61 g/cm3. The tensile strength of highly chlorinated polyethylene and polypropylene products reaches 25 and 32 meganewtons/m2 (250 and 320 kilograms-force/cm2), respectively.

Among the valuable properties of all chlorinated polyolefins are good adhesion to various surfaces and resistance to fire. Chlorinated polyethylene products are also resistant to the action of ozone, oxygen, alkalies, saline solutions, strong acids, aliphatic hydrocarbons, alcohols, oils, and gasoline; they are somewhat less resistant to chlorinated aromatic hydrocarbons. On exposure to light and heat, chlorinated polyolefins can split off HCl, and consequently they require stabilization (seeSTABILIZER OF POLYMER PLASTICS).

Chlorinated polyethylene products are used in the manufacture of transparent films for medical, household, and agricultural uses. Chlorinated polyethylene elastomers are ingredients in the manufacture of rubber products used in technology; mixed with polyvinyl chloride, they are used in the manufacture of fire- and frost-resistant plastics. Chlorinated polypropylene products are processed into fibers and strong transparent films. Polyethylene and polypropylene products containing 50–70 percent chlorine are used as binders in paints and varnishes and as bases for various adhesives and coatings.

The foreign trade names for chlorinated polyethylene polymers are Tyrin (United States), Haloflex (Great Britain), Hostalen (Federal Republic of Germany), and Elaslen (Japan). Perlon P is the trade name used in the United States for chlorinated polypropylene polymers.

In 1976 the world production of chlorinated polyolefins amounted to approximately 80,000 tons.


Entsiklopediia polimerov, vol. 3. Moscow, 1977.


References in periodicals archive ?
This innovation is a new, proprietary BASF resin technology that can be used in place of traditional chlorinated polyolefin resins because it promotes adhesion without the use of chlorinated compounds.
For instance, polyolefin parts are often coated with an adhesion promoter consisting of maleated, chlorinated polyolefin or CPO.
Ryntz, RA, "Compatibility of Chlorinated Polyolefin with the Components of Thermoplastic Polyolefin: A Study by Laser Scanning Confocal Fluorescence Microscopy.
Alcryn MPR is a partially crosslinked, chlorinated polyolefin.
Also, in the same article, there was mention of chlorinated polyolefin resins for modifying NC/PU systems.
com/research/lxd8tw/global) have announced the addition of the "Global Chlorinated Polyolefin Industry Report 2014" report to their offering.
In this study, performance properties of four chlorinated polyolefin adhesion promoters (CPO1, CPO2, CPO3, CPO4), two nonchlorinated adhesion promoters (NCPO1, NCPO2), and five blends of CPO1/NCPO1 at various solid ratios were evaluated.
Another possibility would be to use chlorinated polyolefin resins to modify the nitrocellulose-polyurethane system.
80/lb tl, they are said to have oil resistance equivalent to PP/nitrile-rubber blends and chlorinated polyolefin blends costing 25-50% more.
Its custom manufacturing product portfolio includes a bleach activator for a major detergent manufacturer, a proprietary herbicide and intermediates for a major life sciences company, and chlorinated polyolefin adhesion promoters and antioxidant precursors for a major chemical company.
Laser scanning confocal fluorescence microscopy measurements were performed on thermoplastic polyolefin (TPO) substrates that were coated with chlorinated polyolefin (CPO).
Eastman offers a variety of products for coatings applications, including chlorinated polyolefins, cellulose acetate butyrates and propionates, and its proprietary Texanol ester alcohol.