Internal release agent, composition including internal release agent, and process for producing a plastic lens using same composition
申请人:MITSUI CHEMICALS, INC.
公开号:US10239239B2
公开(公告)日:2019-03-26
An internal release agent includes at least one phosphodiester represented by the following general formula (1).
In the formula, R1 and R2 independently represent a hydrocarbon group having 1 to 30 carbon atoms, which is optionally substituted with at least one hydroxyl group, and R3 represents an alkylene group having 2 to 4 carbon atoms. A plurality of R3's may be the same as or different from each other. M represents a hydrogen atom, an ammonium ion, an alkali metal ion, or a monovalent/divalent alkali earth metal ion, and n is an integer of 1 to 60.
Polymerizable composition, optical material comprising the composition and method for producing the material
申请人:——
公开号:US20040254258A1
公开(公告)日:2004-12-16
A cured matter obtained by polymerizing and curing a polymerizable composition comprising a compound having at least one episulfide in a molecule is reduced in an odor by adding a perfume to the polymerizable composition comprising the compound having at least one episulfide in a molecule.
A cloudiness of the lens is removed by raising a purity of sulfur to 98% or more.
A reduction in a chlorine content of the sulfur compound described above to 0.1% by weight or less elevates an oxidation resistance and a light fastness of the high refractive index optical material and improves a color tone thereof.
An optical product having a high refractive index and a high-degree transparency is provided by subjecting the composition in advance to deaerating treatment at 0 to 100° C. for one minute to 24 hours under a reduced pressure of 0.001 to 50 torr.
Episulfide compound and process for producing the same
申请人:——
公开号:US20030149231A1
公开(公告)日:2003-08-07
The episulfide compound of the present invention has, in one molecule, one or more epithio structures represented by the following Formula 1:
1
wherein R
1
is C
1
-C
10
hydrocarbylene group; R
2
, R
3
and R
4
are each independently C
1
-C
10
hydrocarbyl group or hydrogen; Y is S, O, Se or Te; n is an integer of from 0 to 5; and m is 0 or 1, and further characterized by having a nitrogen content of 5000 ppm or less. The optical material produced by curing the episulfide compound by polymerization has a high refractive index and a large Abbe's number with little coloring and haze. The optical material is useful, particularly, as spectacle plastic lenses.
A resinous composition is herein disclosed which comprises a compound having, in one molecule, one or more of structures represented by the formula (1)
wherein R1 is a hydrocarbon having 1 to 10 carbon atoms; R2, R3 and R4 are each hydrogen or a hydrocarbon group having 1 to 10 carbon atoms; and X is S or O, and an existing ratio of S is 50% or more on the average with respect to the total of S and O constituting a three-membered ring,
and another compound having one or more SH groups in one molecule.
According to the present invention, a novel sulfur-containing compound having an episulfide structure can be polymerized to obtain a resin for an optical material whose oxidation resistance is improved.
本发明公开了一种树脂组合物,该树脂组合物包含一种化合物,该化合物在一个 分子中具有一个或多个由式(1)表示的结构
其中 R1 是具有 1 至 10 个碳原子的碳氢化合物;R2、R3 和 R4 分别是氢或具有 1 至 10 个碳原子的碳氢化合物基团;X 是 S 或 O,且相对于构成三元环的 S 和 O 的总和,S 的现有比例平均为 50%或以上、
以及在一个分子中含有一个或多个 SH 基团的另一种化合物。
根据本发明,具有表硫化物结构的新型含硫化合物可以通过聚合得到一种抗氧化性得到改善的光学材料树脂。
Epoxy/episulfide resin compositions for optical materials
申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:EP0921417A2
公开(公告)日:1999-06-09
A composition for a resin which comprises a compound having one or more active hydrogen atoms in one molecule and a compound having one or more structures represented by the following formula (1) in one molecule:
wherein R1 represents a hydrocarbon group having 1 to 10 carbon atoms, R2, R3 and R4 each represents hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, X represents S or O and an average number of S represented by X is about 50% or more of a total number of S and O constituting the three-member ring.
A resin obtained from the novel sulfur-containing compound has an excellent tint performance.
一种树脂组合物,它包括在一个分子中具有一个或多个活性氢原子的化合物和在一个分子中具有一个或多个下式(1)所代表结构的化合物:
其中 R1 代表具有 1 至 10 个碳原子的烃基,R2、R3 和 R4 各代表氢原子或具有 1 至 10 个碳原子的烃基,X 代表 S 或 O,且 X 所代表的 S 的平均数目约为构成三元环的 S 和 O 总数的 50%或以上。
由新型含硫化合物制得的树脂具有优异的着色性能。