Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
560152, C08K 536, C07C32352
3-alkylthiopropionic acids are provided which are a direct addition reaction product of an alkylmercaptan and acrylic acid or an alkali metal salt thereof, the reaction being carried out by heating the reactants in the presence of an aqueous alkaline solution having a pH of at least about 11. The acids can be esterified with pentaerythritol in order to form tetraesters which are especially useful as stabilizers for polymer resins and polymers.
patent: 2416052 (1947-02-01), Gribbins
patent: 2601063 (1952-06-01), Smith et al.
patent: 2680107 (1954-06-01), Leistner et al.
patent: 3144422 (1964-08-01), Homberg
patent: 3249632 (1966-05-01), Peterson et al.
patent: 3517058 (1970-06-01), Thoma et al.
patent: 3629194 (1971-12-01), Onishi et al.
patent: 3637809 (1972-01-01), Kleiner
patent: 3758549 (1973-09-01), Dexter et al.
patent: 4080364 (1978-03-01), Kauder et al.
patent: 4101550 (1978-07-01), Spivack
patent: 4125516 (1978-11-01), Dexter et al.
patent: 4226991 (1980-10-01), Nakahara et al.
patent: 4349468 (1982-09-01), Nakahara et al.
patent: 4774355 (1988-09-01), Omori et al.
patent: 4794138 (1988-12-01), Dunski et al.
"Reactions of Mercaptans with Acrylic and Methacrylic Derivatives", Hurd et al., Journal of American Chemical Society, vol. 60, pp. 2328-2335, Oct. 1947.
"Methyl 3-n-Dodecylmercaptopropionate", Journal of American Chemical Society, vol. 73, p. 4050, 1951.
Smith et al., "Addition of Thioglycolic Acid to Alpha-Alkenes", ACTA Chemica Scandinavica, vol. 8, No. 7, 1954.
Chisolm Daniel R.
Fisch Michael H.
Flanagan Mark E.
Peveler Richard D.
Hoke Veronica P.
S-alkylthiopropionic acids and derivatives does not yet have a rating. At this time, there are no reviews or comments for this patent.If you have personal experience with S-alkylthiopropionic acids and derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and S-alkylthiopropionic acids and derivatives will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1281443