JPS55151004A - Preparation of radiation-shielding plastic material having excellent transparency and mechanical property - Google Patents

Preparation of radiation-shielding plastic material having excellent transparency and mechanical property

Info

Publication number
JPS55151004A
JPS55151004A JP5935779A JP5935779A JPS55151004A JP S55151004 A JPS55151004 A JP S55151004A JP 5935779 A JP5935779 A JP 5935779A JP 5935779 A JP5935779 A JP 5935779A JP S55151004 A JPS55151004 A JP S55151004A
Authority
JP
Japan
Prior art keywords
component
meth
radiation
mixture
plastic material
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.)
Pending
Application number
JP5935779A
Other languages
Japanese (ja)
Inventor
Kazumasa Kamata
Kazuya Okada
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP5935779A priority Critical patent/JPS55151004A/en
Priority to US06/143,516 priority patent/US4292419A/en
Priority to DE8080102257T priority patent/DE3065132D1/en
Priority to EP80102257A priority patent/EP0019121B1/en
Publication of JPS55151004A publication Critical patent/JPS55151004A/en
Pending legal-status Critical Current

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  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To prepare a radiation-shielding plastic material having excellent transparency and mechanical properties, by polymerizing a mixture of a specific vinyl monomer, e.g. alkyl (meth)acrylate, and organic acids containing an oxocarboxylic acid, etc. in the presence of a lead compound.
CONSTITUTION: A mixture comprising (A) 6W95pts.wt. of one or more vinyl monomers selected from 1W4C alkyl (meth)acrylates, hydroxyalkyl (meth)acrylates, styrene, etc., and (B) 94W5pts.wt. of a mixture of (a) an essential component comprising one or more compounds selected from oxocarboxylic acids (e.g. levulinic acid), hydroxycarboxylic acids (e.g. lactic acid), their derivatives, etc., and (b) the other organic acids (e.g. methacrylic acid), is polymerized in the presence of a lead compound (e.g. lead monoxide) and a radical polymerization initiator. Preferably the molar ratio of the lead compound to the component (B) is ≤0.5 and the amount of the component (a) is ≥3wt% on the basis of the amount of the component (B).
COPYRIGHT: (C)1980,JPO&Japio
JP5935779A 1979-05-15 1979-05-15 Preparation of radiation-shielding plastic material having excellent transparency and mechanical property Pending JPS55151004A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5935779A JPS55151004A (en) 1979-05-15 1979-05-15 Preparation of radiation-shielding plastic material having excellent transparency and mechanical property
US06/143,516 US4292419A (en) 1979-05-15 1980-04-24 Process for producing radiation-shielding plastic materials
DE8080102257T DE3065132D1 (en) 1979-05-15 1980-04-25 Process for producing radiation-shielding plastic materials
EP80102257A EP0019121B1 (en) 1979-05-15 1980-04-25 Process for producing radiation-shielding plastic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5935779A JPS55151004A (en) 1979-05-15 1979-05-15 Preparation of radiation-shielding plastic material having excellent transparency and mechanical property

Publications (1)

Publication Number Publication Date
JPS55151004A true JPS55151004A (en) 1980-11-25

Family

ID=13110926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5935779A Pending JPS55151004A (en) 1979-05-15 1979-05-15 Preparation of radiation-shielding plastic material having excellent transparency and mechanical property

Country Status (1)

Country Link
JP (1) JPS55151004A (en)

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