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:
Jul. 16, 1991
Filed:
Nov. 29, 1989
Applicant:
Inventors:
Kuniaki Asai, Tondabayashi, JP;
Kazuo Hieda, Nishinomiya, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B / ; B29C / ; C08J / ; C08L / ;
U.S. Cl.
CPC ...
264141 ; 264211 ; 264300 ; 524399 ; 524400 ; 524609 ;
Abstract
A process for producing an aromatic polysulfone molding compound improved in mold-release characteristics by adding a predetermined amount of metal soap to aromatic polysulfone resin, wherein pellets composed of an aromatic polysulfone resin and a specific amount of metal soap, and otherwise similar pellets but containing no metal soap are prepared separately by melt-mixing, and these two kinds of pellets are dry-blended together so as to satisfy a predetermined condition.