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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 4332921 B1

PDFFull Text
Date of Patent:
Jun. 01, 1982

Filed:

Dec. 29, 1980

Polycarbonate/polyphosphonate thermoplastic composition

Applicant:
Inventors:

Manfred Schmidt, New Martinsville, WV (US);

Joachim Wank, Dormagen, DE;

Eckart Reese, Dormagen, DE;

Assignee:

Bayer Aktiengesellschaft, Leverkusen, DE;

Attorneys:

Harsh; Gene

Pope; Lawrence S.

Preis; Aron

Primary Examiner:

Theodore E Pertilla

Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525462 ; 260D / ; 264349 ;
Abstract

The invention is directed to compositions comprising halogen-free aromatic polycarbonates and halogen-free aromatic polyphosphonates suitable for producing films of improved flame resistance and to processes for their preparation.

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Schmidt, Manfred. (1982). Polycarbonate/polyphosphonate thermoplastic composition (U.S. Patent No. 4332921). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4332921

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