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:
Mar. 24, 1992
Filed:
Nov. 21, 1990
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524314 ; 524377 ;
Abstract
A binder composition for injection moulding or extrusion of metallic or cmic powders in sintering technology comprised 30 to 90% by weight PVA with an average molecular weight of 35,000 to 1,000,000 and 10 to 70% by weight PEG with an average molecular weight of 500 to 50,000 as the melt softener and processing plasticizer. The PEG can be wholly or partly replaced by prepolymeric, aliphatic polyesters of adipic acid and PEG with an average molecular weight of 2,000 to 20,000 or by hydroxy-terminated copolymers of ethylene and propylene oxide with the same average molecular weight.