申请人:Tonen Chemical Corporation
公开号:EP0761745A1
公开(公告)日:1997-03-12
A resin composition of propylene-ethylene random copolymer comprising (a) 100 parts by weight of a propylene-ethylene random copolymer having an ethylene content of 0,5-7 weight %, (b) 0.01-5 parts by weight of at least one alkali salt selected from the group consisting of alkali carboxylates, alkali β-diketonates and alkali salts of β-ketacetate, (c) 0.01-5 parts by weight of an organophosphoric compound, and (d) 0.01-0.5 parts by weight of a lithium aluminum compound. The organophosphoric compound is represented by the following formula (I):
wherein R1 is hydrogen or an alkyl group having 1 to 4 carbon atoms, each of R2 and R3 is independently hydrogen or an alkyl group having 1 to 12 carbon atoms, M is a metal atom of an element selected from the group consisting of Group III, IV, XIII and XIV elements of the Periodic Table, and X is -OH when M is a metal atom of an element of Group III or XIII of the Periodic Table or X is =O or (-OH)2 when M is a metal atom of an element of Group IV or XIV of the Periodic Table, and the lithium aluminum compound is represented by the following formula (II):
[Al2Li(OH)6]nY·mH2O (II)
wherein Y is an inorganic or organic anion, n is a charge of Y and m is a number of 3 or less.
一种丙烯-乙烯无规共聚物的树脂组合物,包括(a) 100 重量份乙烯含量为 0.5-7 重量%的丙烯-乙烯无规共聚物,(b) 0.(c) 0.01-5 重量份的有机磷化合物,和 (d) 0.01-0.5 重量份的锂铝化合物。有机磷化合物由下式(I)表示:
其中 R1 是氢或具有 1 至 4 个碳原子的烷基,R2 和 R3 各自独立地是氢或具有 1 至 12 个碳原子的烷基,M 是选自元素周期表第 III、IV、XIII 和 XIV 族元素的金属原子、当 M 为元素周期表第 III 族或第 XIII 族元素的金属原子时,X 为-OH;当 M 为元素周期表第 IV 族或第 XIV 族元素的金属原子时,X 为 =O 或 (-OH)2,锂铝化合物由下式 (II) 表示:
[Al2Li(OH)6]nY-mH2O (II)
其中 Y 是无机或有机阴离子,n 是 Y 的电荷数,m 是 3 或 3 以下的数字。