Admixing metal salt promotor, initiator and (m)ethyl acetoacetat

Details Admixing metal salt promotor, initiator and (m)ethyl acetoacetat Admixing metal salt promotor, initiator and (m)ethyl acetoacetat

1988-06-10

1990-06-05

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525922, C08G 5916, C08L 6310

Patent

active

049315145

ABSTRACT:
A method of accelerating the curing of a vinyl ester resin (e.g., vinyl ester adhesives) and related compositions comprising: a vinyl ester resin (e.g., bisphenol/epichlorohydrin condensation polymer end capped with methacrylic or ethylacrylic acid); a vinyl monomer (e.g., styrene or the like); a free radical initiator (e.g., MEKP); a free radical promoter (e.g., polyvalent metal naphthenates, polyvalent metal octoates or the like); and an accelerator selected from the group consisting of methyl acetoacetate and ethyl acetoacetate, such compositions are characterized by gel times under ten minutes and physical properties approaching fully cured values within one hour.

REFERENCES:
patent: 4173593 (1979-11-01), Smith et al.
patent: 4336359 (1982-06-01), Messick
patent: 4343921 (1982-08-01), Piestert
patent: 4603182 (1986-07-01), Markovitz
Chemical Abstracts, vol. 87, Apr. 14, 1977, p. 39, Abstract No. 54101y, Awaji et al, "Hardeners for Thermosetting Resin Compositions".
Chemical Abstracts, vol. 90, Feb. 13, 1979, p. 107, Abstract No. 205954u, Nakamura, T., "Improvement of the Finishing of Powdered Coatings".
Chemical Abstracts, vol. 94, Nov. 13, 1980, p. 42, Abstract Nos. 157838t and 157839u, Tokyo Shibaura Electric, "Heat Resistant Resin Compositions".
Chemical Abstracts, vol. 106, Feb. 8, 1985, p. 100, Abstract No. 34771z, Masayuki et al, "Photocurable Epoxy Resin Compositions".

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