Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Scleroproteins – e.g. – fibroin – elastin – silk – etc.
Patent
1988-07-13
1990-08-14
Schain, Howard E.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Scleroproteins, e.g., fibroin, elastin, silk, etc.
424 70, 424 71, 424 72, 435 681, 514773, C07K 1520, A61K 3712
Patent
active
049488767
ABSTRACT:
A novel keratinic polymeric product is described which can be used for cosmetic purposes. This product comprises keratin peptide chains of different molecular weights, formed of amino acids bonded to one another by amide groups with more than 75 percent of the cystine linkages being in the form of S-sulphocysteine, the said peptide chains terminating at one end in a free carboxyl group and at their other end in a free amine group, the major part of said chains having a molecular weight of 1,100 to 7,500.
REFERENCES:
patent: 4349470 (1982-09-01), Battista
patent: 4390525 (1983-06-01), Yoshioka et al.
Preis de Mycologie, Langerson, Masson et cie, Editors (1952), pp. 520-587 (chapter XVIII).
Chem-Abstracts, vol. 77 (1972), 149555, Kunert.
Chem-Abstracts, vol. 84 (1976), 176466e, Kunert.
Zeitschrift, Fur Allg. Mikrobiologie, 13, 1973, pp. 489-498, Kunert.
Arnaud Jean-Claude
Bore Pierre M.
"L'Oreal"
Schain Howard E.
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