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. 17, 1981
Filed:
Mar. 07, 1979
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08G / ;
U.S. Cl.
CPC ...
525534 ; 525535 ;
Abstract
Modified polyaryl-sulphones comprise one or more polyaryl-sulphones and one or more ammonium salts or metal salts of organic sulphonic acids, preferably 0.01 to 5% by weight, relative to the total weight of polyaryl-sulphone plus salt of sulphonic acid, of the one or more organic sulphonic acid salts. These simply produced modified polyaryl-sulphones do not suffer from embrittlement under load, and susceptability to stress-cracking under the influence of solvents and of solutions of unsaturated polyester resins experienced by unmodified polyaryl-sulphones. The modified polyaryl-sulphones are particularly suitable for the production of containers, tubes, sheets and films.