JPS55105201A - Lens - Google Patents

Lens

Info

Publication number
JPS55105201A
JPS55105201A JP1149179A JP1149179A JPS55105201A JP S55105201 A JPS55105201 A JP S55105201A JP 1149179 A JP1149179 A JP 1149179A JP 1149179 A JP1149179 A JP 1149179A JP S55105201 A JPS55105201 A JP S55105201A
Authority
JP
Japan
Prior art keywords
diallylidene
meth
molecule
product
give
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1149179A
Other languages
Japanese (ja)
Other versions
JPS635721B2 (en
Inventor
Jikatsu Hahakabe
Eiichiro Takiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
Showa Highpolymer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Denko KK, Showa Highpolymer Co Ltd filed Critical Showa Denko KK
Priority to JP1149179A priority Critical patent/JPS55105201A/en
Publication of JPS55105201A publication Critical patent/JPS55105201A/en
Publication of JPS635721B2 publication Critical patent/JPS635721B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE:To provide a plastic lens superior in light transmissivity, surface hardness, etc., by hardening constituents consisting mainly of the product of reaction of diallylidene-pentaerythritol with an unsaturated alcohol having a hydroxyl group and a (meth)acryloyl group in a molecule. CONSTITUTION:(a) 1mol of diallylidene-pentaerythritol represented by formula I and (b) 1-2.2mol of an unsaturated alcohol having a hydroxyl group and a (meth)acryloyl group in a molecule, such as 2-hyeroxyethyl acrylate or pentaerythrol trimethacrylate, are reacted in the presence of an acidic catalyst to give a reaction product represented by formula II as a typical example. This reaction product is injected into a mold for a specified form lens designed to the form of the final product, and hardened by the method of heating, light irradiation, ultraviolet irradiation, or the like to give a plastic lens.
JP1149179A 1979-02-05 1979-02-05 Lens Granted JPS55105201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1149179A JPS55105201A (en) 1979-02-05 1979-02-05 Lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1149179A JPS55105201A (en) 1979-02-05 1979-02-05 Lens

Publications (2)

Publication Number Publication Date
JPS55105201A true JPS55105201A (en) 1980-08-12
JPS635721B2 JPS635721B2 (en) 1988-02-04

Family

ID=11779504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1149179A Granted JPS55105201A (en) 1979-02-05 1979-02-05 Lens

Country Status (1)

Country Link
JP (1) JPS55105201A (en)

Also Published As

Publication number Publication date
JPS635721B2 (en) 1988-02-04

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