Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From ketone or ketene reactant
Patent
1988-09-16
1990-11-06
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From ketone or ketene reactant
528323, 528335, C08G 6926
Patent
active
049687700
ABSTRACT:
Novel polyamide polymers incorporating moieties of a [4.4] spirodilactam with spiro ring nitrogens in the 1- and 6- spiro ring positions and moieties of a primary diamine are produced by reaction of the primary diamine and a spirodilactam precursor selected from 4-oxoheptanedioic acid compounds or [4.4] spirodilactones having spiro ring oxygen atoms in the 1- and 6- spiro ring positions.
REFERENCES:
patent: 2149678 (1939-03-01), Hovey et al.
patent: 2195570 (1940-04-01), Hovey et al.
patent: 2279752 (1942-04-01), Jacobson
patent: 2987502 (1961-06-01), Ferstandig
patent: 3408334 (1968-10-01), Caldwell et al.
patent: 3637602 (1972-01-01), Conciatori
patent: 3778411 (1973-12-01), Emerick et al.
patent: 4064086 (1977-12-01), Cowsar et al.
patent: 4595745 (1986-06-01), Nakama et al.
Hachihama et al., J. Soc. Chem. Ind., Japan, 45, p. 404B, (1942).
Hachihama et al., J. Soc. Chem. Ind., Japan, 46, p. 119B, (1943).
Kobayashi et al., Sen-i Gackaishi, 14, pp. 880-882, (1958).
Obseo et al., Revista de Plastecos Modernos, XXVIII, No. 257, (1977), pp. 679-686 and translation.
Anderson Harold D.
Shell Oil Company
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