Organic polymers having water contact angles of 20° or smaller, preferably 7° or smaller and equipped with both high wettability and high transparency. The organic polymers may contain as partial structures polar structures of about 3 debyes or higher in dipole moment and are available especially from polymerization of polymerizable compounds having alkylene(thio)urea structures.
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.
To provide a plastic lens which can absorb light with a wavelength of 400 to 420 nm with sufficiently high efficiency but is reduced in the absorption of light with a wavelength of around 420 nm or longer, is less affected by harmful light, suppresses yellow coloration and therefore has excellent appearance, suppresses yellowish discoloration over time, and has excellent heat resistance, light resistance, and also optical performance, particularly an excellent Abbe's number.
The plastic lens is characterized by containing an ultraviolet absorbing agent represented by the following formula (I):
(in the formula, R
1
to R
8
each independently represent a monovalent group such as a hydrogen atom, R
9
represents a monovalent sulfur-containing group represented by the following formula (i):
(in the formula, R
10
represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R
11
represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R
12
represents a monovalent hydrocarbon group with 1 to 20 carbon atoms; the total number of carbon atoms in R
10
, n number of R
11
, and R
12
is 30 or less; m represents an integer of 0 or 1; and n represents an integer of 0 to 3)), and a resin material.
Metal Thietane Compound, Polymerizable Composition Containing the Compound, Resin and Use of the Resin
申请人:Murakami Masakazu
公开号:US20130018169A1
公开(公告)日:2013-01-17
Polymerizable compositions containing at least one metal thietane compound represented by general formulas (110), (201) or (120), respectively, wherein said formulas are as follows:
and wherein the identified moieties and n, p, q and r are defined.
METAL THIETANE COMPOUND, POLYMERIZABLE COMPOSITION CONTAINING THE COMPOUND, RESIN AND USE OF THE RESIN
申请人:Murakami Masakazu
公开号:US20100240862A1
公开(公告)日:2010-09-23
Disclosed is a metal thietane compound represented by the following general formula (120),
(wherein, in the above general formula (120), M is a member selected from the group consisting of Bi, Sb, Ti, Zr and Ta; X
1
and X
2
are each independently a sulfur atom or an oxygen atom; R
1
is a divalent organic group; the bond between M and T shown by a dotted line and a solid line represents a single or double bond; m is an integer of 0 or 1 or more; n is the number of valence of M; and p is an integer of equal to or more than 1 and equal to or less than n, provided that when r is 1, q is 0 and Y is a monovalent inorganic or organic group; when r is 1 and n-p-q is 2 or more, a plurality of Ys contained are each independently selected from monovalent inorganic or organic groups; when r is 1 and n-p-q is 2 or more, a plurality of Ys may be bonded to each other to form a ring containing M; when r is 2, n-p-q is 1 or 2 and Y is a divalent group; when r is 2 and n-p-q is 2, two Ys may form a ring together with two Ms; and when r is 2 and q is 2, a plurality of Ts contained are each independently selected from inorganic or organic groups).