Wingtack

C-5—C-9 aromatic modified aHphatic Wingtack Plus, Extra, 86... 

Other natural product-based resins also became widely used, such as the light colored Lewis acid oligomerized products of terpenes such as a-pinene, p-pinene, and limonene. These natural product resins are relatively expensive, however, and formulators now often use the newer, less expensive synthetic resins in present day natural rubber PSAs. These are termed the aliphatic or C-5 resins and are Lewis acid oligomerized streams of predominately C-5 unsaturated monomers like cis- and /rawi-piperylene and 2-methyl-2-butenc [37]. These resins are generally low color products with compatibility and softening points similar to the natural product resins. Representative products in the marketplace would be Escorez 1304 and Wingtack 95. In most natural rubber PSA formulations, rubber constitutes about 100 parts and the tackifier about 75-150 parts. 

WINGTACK , hydrocarbon resins, 137 Wisconsin Department of Agriculture, Trade and Consumer Protection, 300... 

Wingtack . [Goodyear Goodyear Europe] C5 hydrocarbon resins tackify-ing and modifying resins. 

Wingtack, Hydrocarbon resins, Goodyear Tire Rubber Co., Chemical Div. 

Fig. 18. Effect of endblock resins (Table 3) on adhesive properties of Kraton 1107 (1(X) parts), Wingtack 95 (100 parts), and oil (25 parts) (see Table 9).

Kraton Dl 107 Rubber Shell. Wingtack 95 Goodyear. Amberol ST-137 Rohm and Haas. Reichhold. 

Ingredients Wingtack 95 Wingtack Plus Wingtack Extra... 

Building tack in nitrile compounds may be achieved by the incorporation of tackifying resins such as coumarone indene (e.g., Cumar MH) or nonactivated phenolic types such as Schaiectady SP 1066 or hydrocarbon types such as Wingtack 95. It is important to use a minimum amount or no stearic acid, or replace it with lauric acid, and nonblooming, vay compatible plasticizers such as liquid NBR, phosphate esters, and glycol ether estos. 

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