An object is to provide a polyvinyl acetal composition which includes polyvinyl acetals having different average amounts of remaining hydroxyl groups and from which a sheet having excellent transparency can be molded.
A polyvinyl acetal composition comprising 3 to 100 parts by mass of polyvinyl acetal (B) with respect to 100 parts by mass of polyvinyl acetal (A), and 0.05 to 0.75 times by mass of compound (C) with respect to the total mass of polyvinyl acetal (A) and polyvinyl acetal (B). The polyvinyl acetal (A) has an average amount of remaining hydroxyl groups of X mol% (X is a positive number), the polyvinyl acetal (B) has an average amount of remaining hydroxyl groups of Y mol% (Y is a positive number), and |X - Y| ≥ 3 is satisfied. The compound (C) is selected from a group consisting of a polyester containing a hydroxyl group, a polyalkylene oxide, and an ester compound containing a hydroxyl group, the ester compound containing a hydroxyl group being an ester compound of one molecule of an m-valent alcohol (m represents an integer of 1 to 3) and n molecules (n represents an integer of 1 to m) of a monovalent carboxylic acid.
目的是提供一种聚乙烯醇缩醛组合物,该组合物包括具有不同平均剩余羟基量的聚乙烯醇缩醛,用该组合物可以模塑出透明度极佳的片材。
一种聚乙烯醇缩醛组合物,包括相对于 100 份聚乙烯醇缩醛(A)质量的 3 至 100 份聚乙烯醇缩醛(B),以及相对于聚乙烯醇缩醛(A)和聚乙烯醇缩醛(B)总质量的 0.05 至 0.75 倍的化合物(C)。聚乙烯醇缩醛(A)的羟基平均剩余量为 X mol%(X 为正数),聚乙烯醇缩醛(B)的羟基平均剩余量为 Y mol%(Y 为正数),满足|X-Y|≥3。化合物(C)选自由含羟基的聚酯、聚环氧烷和含羟基的酯化合物组成的组,其中含羟基的酯化合物是一分子间价醇(m 代表 1 至 3 的整数)和 n 分子(n 代表 1 至 m 的整数)一价羧酸的酯化合物。
Polyvinyl acetal composition
申请人:KURARAY CO., LTD.
公开号:US10323143B2
公开(公告)日:2019-06-18
An object is to provide a polyvinyl acetal composition which includes polyvinyl acetals having different average amounts of remaining hydroxyl groups and from which a sheet having excellent transparency can be molded.
A polyvinyl acetal composition comprising 3 to 100 parts by mass of polyvinyl acetal (B) with respect to 100 parts by mass of polyvinyl acetal (A), and 0.05 to 0.75 times by mass of compound (C) with respect to the total mass of polyvinyl acetal (A) and polyvinyl acetal (B). The polyvinyl acetal (A) has an average amount of remaining hydroxyl groups of X mol % (X is a positive number), the polyvinyl acetal (B) has an average amount of remaining hydroxyl groups of Y mol % (Y is a positive number), and |X−Y|≥3 is satisfied. The compound (C) is selected from a group consisting of a polyester containing a hydroxyl group, a polyalkylene oxide, and an ester compound containing a hydroxyl group, the ester compound containing a hydroxyl group being an ester compound of one molecule of an m-valent alcohol (m represents an integer of 1 to 3) and n molecules (n represents an integer of 1 to m) of a monovalent carboxylic acid.
目的是提供一种聚乙烯醇缩醛组合物,该组合物包括具有不同平均剩余羟基量的聚乙烯醇缩醛,用其可模塑出透明度极佳的片材。
一种聚乙烯醇缩醛组合物,包括相对于 100 份聚乙烯醇缩醛(A)质量的 3 至 100 份聚乙烯醇缩醛(B),以及相对于聚乙烯醇缩醛(A)和聚乙烯醇缩醛(B)总质量的 0.05 至 0.75 倍的化合物(C)。聚乙烯醇缩醛(A)的羟基平均剩余量为 X mol %(X 为正数),聚乙烯醇缩醛(B)的羟基平均剩余量为 Y mol %(Y 为正数),满足|X-Y|≥3。化合物(C)选自由含羟基的聚酯、聚环氧烷和含羟基的酯化合物组成的组,其中含羟基的酯化合物是一分子间价醇(m 代表 1 至 3 的整数)和 n 分子(n 代表 1 至 m 的整数)一价羧酸的酯化合物。
Le chloroallyllithium comme synthon de chloroallylation ou comme equivalent du vinylcarbene: Synthese regioselective d'alcools γ-ethyleniques β-chlores et de vinyl-2 oxetanes a partir d'epoxydes
作者:P. Ongoka、B. Mauzé、L. Miginiac
DOI:10.1016/0022-328x(85)87207-7
日期:1985.4
Rothstein; Ficini, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1952, vol. 234, p. 1694
作者:Rothstein、Ficini
DOI:——
日期:——
ONGOKA, P.;MAUZE, B.;MIGINIAC, L., J. ORGANOMET. CHEM., 1985, 284, N 2, 139-147