Internal release agent, composition including internal release agent, and process for producing a plastic lens using same composition

Patent metadata

Field	Value
Publication number	US-10239239-B2
Application number	US-201515539911-A
Country	US
Kind code	B2
Filing date	Dec 25, 2015
Priority date	Dec 26, 2014
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

An internal release agent includes at least one phosphodiester represented by the following general formula (1).

In the formula, R 1 and R 2 independently represent a hydrocarbon group having 1 to 30 carbon atoms, which is optionally substituted with at least one hydroxyl group, and R 3 represents an alkylene group having 2 to 4 carbon atoms. A plurality of R 3 '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.

First claim

The invention claimed is:

1. A composition, comprising:
a polymerization reactive compound; and
an internal release agent containing at least one phosphodiester compound represented by the following general formula (1):

wherein, in the formula, R 1 and R 2 independently represent a hydrocarbon group having 1 to 30 carbon atoms, which is optionally substituted with at least one hydroxyl group; R 3 represents an alkylene group having 2 to 4 carbon atoms and a plurality of R 3 '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.

2. The composition according to claim 1 ,
wherein the amount of the phosphodiester compound represented by the general formula (1) is 1×10 −1 to 5×10 4 ppm with respect to the polymerization reactive compound.

3. The composition according to claim 1 ,
wherein the polymerization reactive compound is at least one kind of compound selected from the group consisting of a polyiso(thio)cyanate compound, a poly(thio)epoxy compound, a polyoxetanyl compound, a polythietanyl compound, a poly(meth)acryloyl compound, a polyalkene compound, an alkyne compound, a poly(thi)ol compound, a polyamine compound, an acid anhydride, and a polycarboxylic acid compound.

4. A molded product obtained by polymerizing the composition according to claim 1 .

5. An optical material comprised of the molded product according claim 4 .

6. A plastic lens comprised of the molded product according to claim 4 .

7. A process for producing a plastic lens, comprising:
a step of cast-polymerizing the composition according to claim 1 .

8. A plastic lens obtained by the production method according to claim 7 .

9. An optical material comprising an internal release agent containing at least one phosphodiester compound represented by the following general formula (1):

wherein, in the formula, R 1 and R 2 independently represent a hydrocarbon group having 1 to 30 carbon atoms, which is optionally substituted with at least one hydroxyl group; R 3 represents an alkylene group having 2 to 4 carbon atoms and a plurality of R 3 '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.

10. A plastic lens comprising an internal release agent containing at least one phosphodiester compound represented by the following general formula (1):

wherein, in the formula, R 1 and R 2 independently represent a hydrocarbon group having 1 to 30 carbon atoms, which is optionally substituted with at least one hydroxyl group; R 3 represents an alkylene group having 2 to 4 carbon atoms and a plurality of R 3 '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.

Assignees

• Mitsui Chemicals Inc

Inventors

• Okazaki Kouju
• Kakinuma Naoyuki
• OIKI Motoharu

Classifications

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title

• C08F2/44

  Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers · CPC title

• G02B1/04

  made of organic materials, e.g. plastics (G02B1/08 takes precedence) · CPC title

• C08G18/3876

  containing mercapto groups · CPC title

• G02B1/041

  Lenses · CPC title