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    • 2. 发明授权
    • Glycol carbonate ester stabilizers for synthetic resins
    • 用于合成树脂的二醇碳酸酯稳定剂
    • US4255301A
    • 1981-03-10
    • US904524
    • 1978-05-10
    • Motonobu MinagawaYutaka NakaharaNaohiro Kubota
    • Motonobu MinagawaYutaka NakaharaNaohiro Kubota
    • C08K5/00C07C69/96C08K5/10C08K5/109C08L1/00C08L7/00C08L21/00C08L23/00C08L27/00C08L51/00C08L51/02C08L67/00C08L101/00C08K5/04
    • C07C69/96C08K5/109
    • Stabilizer compositions comprising a polymer stabilizer and a carbonate ester of cyclic dihydroxy compounds protect synthetic resins against the harmful effects of light having a wavelength less than 400 nanometers. The carbonate ester can be represented by the formula ##STR1## in which a is a number from 1 to 50, A is hydrogen or ##STR2## B is R' or --G--OH, R and R' are independently alkyl, alkoxyalkyl, cycloalkyl, aryl, aryloxyalkyl, aralkyl, or alkaryl groups, and G in at least one occurrence is a residue of a cycloaliphatic or non-aromatic oxygen heterocyclic dihydroxy compound having 3 to 20 carbon atoms and 1 or 2 rings of 3 to 12 members, of which up to 4 can be oxygen. Additional occurrences of G can be aliphatic glycol or bisphenol residues if desired. The polymer stabilizer included in the stabilizer compositions with carbonate esters of cyclic dihydroxy compounds can include metal carboxylate salts 1,2-epoxides, phenols, organic phosphites, esters of thiodipropionic acid, 2-hydroxybenzophenones, 2(2'-hydroxyaryl)benzotriazoles, nickel phenolates, and carboxylic acids of 2,2,6,6-tetraalkylpiperidine-4-alcohols.There are also provided stabilized synthetic resin compositions comprising a stabilizer composition including a carbonate ester of a cyclic dihydroxy compound as defined.
    • 包含聚合物稳定剂和环状二羟基化合物的碳酸酯的稳定剂组合物保护合成树脂免受波长小于400纳米的光的有害影响。 碳酸酯可由式(Ⅰa)表示,其中a为1至50的数,A为氢或B为R'或-G-OH,R和R'独立地为烷基,烷氧基烷基, 环烷基,芳基,芳氧基烷基,芳烷基或烷芳基,G至少一个为碳原子数为3〜20的脂环族或非芳香族氧杂环二羟基化合物的残基,1〜2个环为3〜12个, 其中多达4个可以是氧气。 如果需要,另外出现的G可以是脂族二醇或双酚残基。 包含在具有环状二羟基化合物的碳酸酯的稳定剂组合物中的聚合物稳定剂可以包括金属羧酸盐,1,2-环氧化物,酚,有机亚磷酸酯,硫代二丙酸的酯,2-羟基二苯甲酮,2(2'-羟基芳基)苯并三唑, 酚盐和2,2,6,6-四烷基哌啶-4-醇的羧酸。 还提供稳定的合成树脂组合物,其包含稳定剂组合物,其包含如所定义的环状二羟基化合物的碳酸酯。