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Process for hardening an alkyd resin composition using ionizing radiation. [electron beams, gamma radiation]

Abstract

In an alkyd resin composition having free hydroxide radicals and containing a conjugated unsaturated fatty acid and/or oil as a component thereof, a process for hardening an alkyd resin composition comprises the steps of dissolving into a vinyl monomer, the product obtained by the semi-esterification reaction of said hydroxide radicals with acid anhydrides having polymerizable radicals and hardening by ionizing radiation to provide a coating with a high degree of cross-linking, with favorable properties such as toughness, hardness, chemical resistance and resistance to weather and with the feasibility of being applied as the ground and finish coat on metals, wood, paper, outdoor construction or the like. Any kind of ionization radiation, particularly accelerated electron beams, ..gamma.. radiation can be used at 50/sup 0/C to -5/sup 0/C for a few seconds or minutes, permitting continuous operation. In one example, 384 parts of phthalic anhydride, 115 parts of pentaerythritol, 233 parts of trimethylol ethane, 288 parts of tung fatty acid and 49 parts of para-tertiary-butyl benzoic acid are mixed and heated with 60 parts of xylene to an acid value of 12. In addition, 271 parts of maleic anhydride and 0.6 parts of hydroquinone are admixed with the content and heated to  More>>
Publication Date:
Nov 27, 1969
Product Type:
Patent
Report Number:
JP 1973-18958; B
Reference Number:
AIX-07-244723; EDB-76-075755
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; ANHYDRIDES; CHEMICAL RADIATION EFFECTS; RESINS; VINYL MONOMERS; CARBOXYLIC ACID ESTERS; CARBOXYLIC ACIDS; CORROSION RESISTANCE; CROSS-LINKING; ELECTRON BEAMS; ESTERIFICATION; GAMMA RADIATION; HARDENING; HARDNESS; IMPACT STRENGTH; IRRADIATION; SURFACE COATING; BEAMS; CHEMICAL REACTIONS; CHEMISTRY; DEPOSITION; ELECTROMAGNETIC RADIATION; ESTERS; IONIZING RADIATIONS; LEPTON BEAMS; MECHANICAL PROPERTIES; MONOMERS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PARTICLE BEAMS; PETROCHEMICALS; PETROLEUM PRODUCTS; POLYMERIZATION; POLYMERS; RADIATION CHEMISTRY; RADIATION EFFECTS; RADIATIONS; 400600* - Radiation Chemistry
OSTI ID:
7269159
Country of Origin:
Japan
Language:
Japanese
Submitting Site:
INIS
Size:
Pages: 5
Announcement Date:

Citation Formats

Watanabe, T, Murata, K, and Maruyama, T. Process for hardening an alkyd resin composition using ionizing radiation. [electron beams, gamma radiation]. Japan: N. p., 1969. Web.
Watanabe, T, Murata, K, & Maruyama, T. Process for hardening an alkyd resin composition using ionizing radiation. [electron beams, gamma radiation]. Japan.
Watanabe, T, Murata, K, and Maruyama, T. 1969. "Process for hardening an alkyd resin composition using ionizing radiation. [electron beams, gamma radiation]." Japan.
@misc{etde_7269159,
title = {Process for hardening an alkyd resin composition using ionizing radiation. [electron beams, gamma radiation]}
author = {Watanabe, T, Murata, K, and Maruyama, T}
abstractNote = {In an alkyd resin composition having free hydroxide radicals and containing a conjugated unsaturated fatty acid and/or oil as a component thereof, a process for hardening an alkyd resin composition comprises the steps of dissolving into a vinyl monomer, the product obtained by the semi-esterification reaction of said hydroxide radicals with acid anhydrides having polymerizable radicals and hardening by ionizing radiation to provide a coating with a high degree of cross-linking, with favorable properties such as toughness, hardness, chemical resistance and resistance to weather and with the feasibility of being applied as the ground and finish coat on metals, wood, paper, outdoor construction or the like. Any kind of ionization radiation, particularly accelerated electron beams, ..gamma.. radiation can be used at 50/sup 0/C to -5/sup 0/C for a few seconds or minutes, permitting continuous operation. In one example, 384 parts of phthalic anhydride, 115 parts of pentaerythritol, 233 parts of trimethylol ethane, 288 parts of tung fatty acid and 49 parts of para-tertiary-butyl benzoic acid are mixed and heated with 60 parts of xylene to an acid value of 12. In addition, 271 parts of maleic anhydride and 0.6 parts of hydroquinone are admixed with the content and heated to terminate the reaction. 100 parts of a 50% stylene solution of this alkyd resin are mixed with 1 part of a 60% toluene solution of cobalt naphthenate, and then coated on a glass plate and irradiated with high energy electron beams of 300 kV with a dose of 5 Mrad for 1 sec.}
place = {Japan}
year = {1969}
month = {Nov}
}