1)  UV-absorbing
紫外线吸收
1.
Study on Preparation and Character of UV-absorbing Compound in Seaweeds;
海藻中紫外线吸收物质的制备与特性的研究
2)  ultraviolet absorption
紫外(线)吸收
3)  ultraviolet absorbent
紫外线吸收剂
1.
Synthesis of ultraviolet absorbent UV-326 by phase transfer catalysis;
相转移催化合成紫外线吸收剂UV-326
2.
Synthesis of β-diketone compounds for UV-A ultraviolet absorbent;
β-二酮类UV-A紫外线吸收剂的合成
3.
Synthesis of Ultraviolet Absorbent UV-326 by Rongalite Method;
保险粉法合成紫外线吸收剂UV-326
4)  UV absorbent
紫外线吸收剂
1.
Synthesis of benzotriazole UV absorbents via selective catalytic hydrogenation;
选择性加氢合成苯并三唑类紫外线吸收剂的研究
2.
By co-operative function of photochromic material, UV absorbent and polyester paint, the formed film can automatically change color after irradiation, but it can restore intrinsic color.
通过光致变色材料、紫外线吸收剂和涂料的协同作用,当太阳光(或紫外光)照射后,漆膜能自动变色,但在无照射时又能恢复原有颜色。
5)  UVA & UVB absorber
UVA&UVB紫外线吸收剂
6)  ultraviolet absorber
紫外线吸收剂
1.
The different kinds of ultraviolet absorbers were reviewed,and the benzotriazole type UV absorbent were emphatically introduced.
综述了不同种类的紫外线吸收剂,着重介绍了苯并三唑类紫外线吸收剂。
2.
A triazine ultraviolet absorber, 2,4-di(3′,5′-dimethylphenyl)-6-(2′-hydroxyl-4′-hexyloxylphenyl)phenyl-1,3,5 Triazine is synthesized in three steps.
将中间体Ⅱ与NaOH及溴辛烷在DMF中于70℃反应1h,经冷却、抽滤,用二氯甲烷重结晶,得到淡黄色的紫外线吸收剂2,4-二(3′,5′-二甲苯基)-6-(2′-羟基-4′-辛氧基)苯基-1,3,5三嗪各步骤的收率依次为93%,94%,88%。
3.
A triazine ultraviolet absorber,Cyasorb UV-1164 is synthesized in three steps.
将中间体Ⅱ与NaOH及溴辛烷在DMF中于70℃反应1h,经冷却、抽滤,用二氯甲烷重结晶,得到淡黄色的紫外线吸收剂2,4-二(2′,4′-二甲基苯基)-6-(2′-羟基-4′-辛氧基苯基)-1,3,5三嗪,各步骤的收率依次为93%,91%,81%。
参考词条
补充资料:UV-531紫外线吸收剂
    商品名UV-531紫外线吸收剂。浅黄色结晶体。分子量336.21。密度1.160g/cm3。熔点49℃。微溶于二氧乙烷。溶于苯、乙醇、正己烷、丙酮。低毒。
    生产方法:采用合成法。以溴正辛烷和2,4-二羟基二苯甲酮为原料,在丙酮、碳酸钾存在下进行合成,再经过滤、浓缩、重结晶、再次过滤而得。
    用途:紫外线吸收剂。主要用于防晒类和晒黑类化妆品。能有效地吸收波长为300-375μm的紫外线。光稳定性优良。添加量通常不超过5%。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。