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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.:

US 4705843 B1

PDFFull Text
Date of Patent:
Nov. 10, 1987

Filed:

Apr. 08, 1985

Process for the production of substituted polyaryl ethers

Applicant:
Inventors:

Gunter Stammann, Cologne, DE;

Johann Grolig, Leverkusen, DE;

Helmut Waldmann, Leverkusen, DE;

Assignee:

Bayer Aktiengesellschaft, Leverkusen, DE;

Attorney:

Connolly and Hutz

Primary Examiner:

John Kight

Assistant Examiner:

M L Moore

Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528212 ; 528214 ; 528215 ; 528216 ; 528217 ; 528218 ;
Abstract

The invention relates to a process for the production of substituted polyarylethers from par-substituted phenols.

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