C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 123/04 (2006.01) C08L 23/08 (2006.01) C08L 23/16 (2006.01) C09J 123/02 (2006.01) C09J 123/08 (2006.01)
Patent
CA 2287075
The subject invention is directed to polymer compositions which comprise a homogeneous ethylene/.alpha.-olefin interpolymer, a wax and a nucleating agent, wherein the nucleating agent is provided in an effective amount such that the percent elongation at break of the polymer composition is at least fifty percent greater than the percent elongation at break of a comparative composition which lacks the nucleating agent. The polymer compositions of the invention will find utility in applications requiring high elongation at break, while maintaining a high onset of crystallization temperature, such as in the high-speed coating of fabrics, carpet backing, floor tile and sheeting, and adhesives.
La présente invention concerne des compositions polymères renfermant un copolymère homogène d'éthylène/d'alpha-oléfine, et un agent cireux et de nucléation, cet agent de nucléation étant présent en quantité efficace, de sorte que le pourcentage d'allongement à la rupture de ladite composition polymère est au moins 50 pour cent supérieur au pourcentage d'allongement à la rupture d'une composition comparative sans agent de nucléation. Les compositions polymères de la présente invention sont utiles dans des applications nécessitant un allongement à la rupture élevé, tout en conservant une haute température de cristallisation initiale, par exemple lors d'un revêtement à grande vitesse sur textile, sous-couche, carreaux et revêtement de sol, et adhésifs.
Jialanella Gary L.
Mckeand Thomas J. Jr.
Sehanobish Kalyan
Dow Global Technologies Inc.
Smart & Biggar
The Dow Chemical Company
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