申请人:——
公开号:US20030047722A1
公开(公告)日:2003-03-13
Disclosed are optical materials which effectively absorb UV light up to the long wavelength band, have low specific gravity, and have balanced properties including impact and heat resistances; lenses; and optical material compositions as their starting materials. The composition contains a polymerizable monomer material consisting of at least one di(meth)acrylate of formula (1):
1
(R: CH
3
etc., Ph: a phenylene group; x, z: an integer of 1 to 5; y: 0 or 1) and at least one monomer (M) having at least one vinyl group in one molecule other than monomers of formula (1), and an additive selected from component (A
1
), (A
2
), or (B), or mixtures thereof, provided that components (A
1
) and/or (B) is contained, and when component (B) is contained, components (A
1
) and/or (A
2
) is also contained: (A
1
): a chlorinated benzotriazole UV absorber; (A
2
): a chlorine-free benzotriazole UV absorber; (B): a coloring agent having absorption maximum in 520-650 nm.
本发明公开了能有效吸收长波段紫外线、比重低、具有包括抗冲击性和耐热性在内的平衡特性的光学材料;镜片;以及作为其起始材料的光学材料组合物。该组合物含有一种可聚合单体材料,由至少一种式(1)的二(甲基)丙烯酸酯组成:
1
(R: CH
3
等,Ph:亚苯基;x,z:1 至 5 的整数;y:除式(1)单体外,至少有一种单体(M)在一个分子中含有至少一个乙烯基;添加剂选自组分(A
1
), (A
2
) 或 (B) 或其混合物中选出的添加剂,条件是组分 (A
1
)和/或(B)的混合物,且当含有组分(B)时,组分(A
1
)和/或(A
2
) 也被包含:(A
1
):氯化苯并三唑紫外线吸收剂;(A
2
):不含氯的苯并三唑紫外线吸收剂; (B):吸收最大波长为 520-650 纳米的着色剂。