Stabilizers for Flexible Vinyl

Akcros Chemicals America Stabilizers for Flexible Vinyl AKCROS ABC Line-Foam Stabilizer/Activators  

Decomposition Range 340 to 360F Activity Rate High 

Decomposition Range 330 to 350F Activity Rate High 

---

Cata-Chek 820. [Ferro] Dibutyltin dilaurate heat and light stabilizer for flexible vinyl f< mulations. 

Ferro 1288. [Feiro] Barium/cadmium/ zinc stabilizi, heat stabilizer for flexible vinyls. 

Uses Heat and light stabilizer for flexible vinyls processed by calendering, extrusion, inj. molding, or plastisol applies, for hose, profile, filled systems, etc. 

Plastics and Synthetic Products. To prevent degradation of plastics at elevated processing temperatures, it is necessary to use suitable heat stabilizers. Eor example, flexible poly(vinyl chloride) (PVC) manifests uncontroUed color development in the absence of stabilizers. Accordingly, cadmium salts of organic acids are typically used in a synergistic combination with corresponding barium salts, in about a 1 3 cadmium barium ratio, to provide a cost-competitive heat stabilizer for flexible PVC. 

Fatty acid epoxides have numerous uses. In particular, oils and fats of vegetable and animal origin represent the greatest proportion of current consumption of renewable raw materials in the chemical industry, providing applications that cannot be met by petrochemicals [64]. Polyether polyols produced from methyl oleate by the Prileshajev epoxidation (using peracetic acid) are an example. Epoxidized soybean oil (ESBO) is a mixture of the glycerol esters of epoxidized linoleic, linolenic, and oleic acids. It is used as a plasticizer and stabilizer for poly (vinyl chloride) (PVC) [1] and as a stabilizer for PVC resins to improve flexibility, elasticity, and toughness [65]. The ESBO market is second to that of epoxy resins and its world wide production... 

Chem. Descrip. Proprietary mixt. of benzophenones Uses UV stabilizer for flexible and rigid plastics, vinyl and acrylic adhesives, and PU coalings... 

Uses Heat stabilizer for vinyl resins, lacquers, elastomers lubricant for flexible vinyls catalyst for PU foam and silicone elastomers catalyst forfood-contact PU resins and PU resins in food-pkg. adhesives plasticizer... 

Interstab . [Akzo Akzo Chem. BV] Stabilizer for plastisols, flexible craiqxls., esp. hose and profile, filled systrans, film and sheet antioxidant, antistat, Ittbticant, release agent, chelating agent for idastics, rubber, coatings, cosmetic, tnetalhngy vinyl catalysts. 

CAS 101-34-8 EINECS/ELINCS 202-935-1 Uses Plasticizer for vinyl wire ]acketing and semirigid vinyls, flexible NC lacquers emollient stabilizer for anhyd. pigmenfed sysfems Features Exc. elec, props., exfrusion lubricify, and heaf sfabilify very low volafilify... 

Chem. Descrip. 2-Hydroxy-4-methoxybenzophenone CAS 131-57-7 EINECS/ELINCS 205-031-5 Uses UV absorber, light stabilizer for rigid and flexible PVC, vinyl homo-and copolymers, PS, styrenic copolymers, acrylics, cellulosics, epoxy resins, polyesters, PU, polyacetals, coatings, sunscreens Regulatory DOT nonregulated... 

Chem. Descrip. Epoxidized soybean oil CAS 8013-07-8 EINECS/ELINCS 232-391-0 Uses Plasticizer, heat/light stabilizer in flexible and semiflexible vinyl compds., PS, NBR, chlorinated rubbers for food pkg. and general use, and in coating vehicle systems Reguiatory FDA approved... 

Octyl epoxy tallate n. A monomeric plasticizer and heat and light stabilizer for vinyls and cellulosics. It imparts good low-temperature flexibility, has low volatility, and is used primarily in coated fabrics, garden hose, film and sheeting, and slush-molded parts. 

At present, there are no good substitutes for lead stabilizers in PVC electrical applications, although the search goes on (see, however. Chapter 4). Cadmium stabilizers, widely used for flexible and semirigid vinyl applications, appear to be phasing out in favor of barium/zinc, calcium/zinc, and zinc/polyphosphite systems. Performance capabilities of many of these packages leave something to be desired. 

The nature of the surface of the films is critical for printability. For calandered flexible vinyl films, the minimum surface energy required for printing with water based inks is 34 dynes/cm. While PVC has a high surface energy itself, 41.9 dynes/cm, many ingredients are required to process PVC. Lubricants and heat stabilizers based on lubricating acids can lower the surface energy to 26-29 dynes/cm. 

Nitrile mbber finds broad application in industry because of its excellent resistance to oil and chemicals, its good flexibility at low temperatures, high abrasion and heat resistance (up to 120°C), and good mechanical properties. Nitrile mbber consists of butadiene—acrylonitrile copolymers with an acrylonitrile content ranging from 15 to 45% (see Elastomers, SYNTHETIC, NITRILE RUBBER). In addition to the traditional applications of nitrile mbber for hoses, gaskets, seals, and oil well equipment, new applications have emerged with the development of nitrile mbber blends with poly(vinyl chloride) (PVC). These blends combine the chemical resistance and low temperature flexibility characteristics of nitrile mbber with the stability and ozone resistance of PVC. This has greatly expanded the use of nitrile mbber in outdoor applications for hoses, belts, and cable jackets, where ozone resistance is necessary. 

Raw Materials. PVC is inherently a hard and brittle material and very sensitive to heat it thus must be modified with a variety of plasticizers, stabilizers, and other processing aids to form heat-stable flexible or semiflexible products or with lesser amounts of these processing aids for the manufacture of rigid products (see Vinyl polymers, vinyl chloride polymers). Plasticizer levels used to produce the desired softness and flexibihty in a finished product vary between 25 parts per hundred (pph) parts of PVC for flooring products to about 80—100 pph for apparel products (245). Numerous plasticizers (qv) are commercially available for PVC, although dioctyl phthalate (DOP) is by far the most widely used in industrial appHcations due to its excellent properties and low cost. For example, phosphates provide improved flame resistance, adipate esters enhance low temperature flexibihty, polymeric plasticizers such as glycol adipates and azelates improve the migration resistance, and phthalate esters provide compatibiUty and flexibihty (245). 

---