The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 1976
Filed:
Jun. 04, 1973
Peter L DEBenneville, Philadelphia, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
Macroreticular polystyrene resin having a surface area of at least 5 and preferably at least 50 square meters/gram and a majority of pores of at least 30 Angstroms diameter is utilized as a solid base support for polypeptide synthesis; linkage of the first amino acid of the peptide to said base being effected through chloromethylation of the base, blocking of the amine function of the acid and esterifying the amino acid with the chloride; the esterification being conducted in the presence of an inert high dielectric constant solvent most preferably acetonitrile. Preferably, the macroreticular solid base support is an aromatic hydrocarbon resin or polymer unsubstituted with nitro or bromo groups, such as the unsubstituted macroreticular polystyrene, above described.