24-01-2019 дата публикации
Номер: US20190023815A1
Принадлежит:
Provided is a method of preparing a rubber composition, which includes (a) reacting a conjugated diene-based monomer with one or more of compounds in the presence of a first catalyst; (b) adding a conjugated diene-based monomer to a product of the step (a) and inducing a reaction; and (c) adding a second catalyst and a conjugated diene-based monomer to a product of the step (b) and inducing a reaction. 1. A method of preparing a rubber composition , comprising:(a) reacting a conjugated diene-based monomer with one or more of compounds represented by the following Chemical Formulas 1 and 2 in the presence of a first catalyst;(b) adding a conjugated diene-based monomer to a product of the step (a) and inducing a reaction; and [{'br': None, 'sub': 1', 'm', '1', 'n', '2', '2', 'o, '(R)—Z\ue8a0C≡C\ue8a0Z—(R)\u2003\u2003'}, {'br': None, 'sub': 1', 'm', '1', '1', 'n', '2', '2', '2', 'o, '(R)—Z-A\ue8a0C≡C\ue8a0A-Z—(R)\u2003\u2003'}], '(c) adding a second catalyst and a conjugated diene-based monomer to a product of the step (b) and inducing a reaction{'sub': 1', '2, 'wherein Rand Reach are a C1 to C20 alkyl, aryl, or alkoxy group, —NR′R″, —SiR′R″R″′, or hydrogen, wherein R′, R″, and R′″ each are a C1 to C20 alkyl, aryl, or alkoxy group, or hydrogen,'}m and o each are an integer of 0 to 3,{'sub': 1', '2, 'Zand Zeach are silicon, tin, nitrogen, oxygen, sulfur, phosphorus, carbon, or hydrogen,'}{'sub': 1', '2, 'Aand Aeach are a C1 to C20 alkylene or arylene group, and'}n is an integer of 1 to 20.2. The method of claim 1 , wherein the first catalyst is a neodymium-based catalyst prepared from a monomeric neodymium salt compound.3. The method of claim 2 , wherein the monomeric neodymium salt compound is one or more selected from the group consisting of neodymium hexanoate claim 2 , neodymium heptanoate claim 2 , neodymium octanoate claim 2 , neodymium octoate claim 2 , neodymium naphthenate claim 2 , neodymium stearate claim 2 , neodymium ...
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