12-02-2015 дата публикации
Номер: US20150045492A1
Принадлежит:
The present invention relates to an additive composition including a counteragent, and more particularly, to an additive composition for preparation of polyolefins, which improve flowability of a nucleating agent and exhibits excellent transparency, by applying a counteragent of a specific structure to a sorbitol nucleating agent which is an additive used in preparation of polyolefins. 1. An additive composition comprising:(a) a sorbitol acetal compound; and {'br': None, 'sub': +x', '2, 'sup': 'n−', 'b': '2/n', '(M)4(M)2(OH)12(A)·mHO \u2003\u2003[Equation 1]'}, '(b) a counteragent represented by Formula 1{'sup': n−', '2−', '2−', '−', '2−', '−', '−', '−', '−, 'sub': 3', '4', '3', '4, 'wherein M is at least one 2-valent metal selected from the group consisting of Mg, Ca, Co, Zn, and Ni; M is a 3-valent metal selected from the group consisting of Al, Fe, Co, Mn, and Ti; Ais an anion having a valence of n and is selected from the group consisting of CO, HPO, NO, SO, OH, F, Cl, and Br; and 0≦x≦4 and m≧0.'}2. The additive composition according to claim 1 , wherein the counteragent of Formula 1 has a volume average particle size (Mv) of less than 20 μm claim 1 , and a D90 value of less than 50 μm.3. The additive composition according to claim 1 , wherein the counteragent of Formula 1 has a volume average particle size (Mv) of less than 1.0 μm claim 1 , and a D90 value of less than 5.0 μm.4. The additive composition according to claim 1 , wherein the counteragent of Formula 1 is coated with a surface treatment agent.5. The additive composition according to claim 4 , wherein the surface treatment agent comprises at least one compound selected from among fatty acids claim 4 , silane coupling agents claim 4 , titanate coupling agents claim 4 , phosphate esters claim 4 , and aluminum coupling agents.6. The additive composition according to claim 4 , wherein the surface treatment agent is present in an amount of 0.1 parts by weight to 5 parts by weight based on 100 parts by ...
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