Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2008-01-01
2008-01-01
Cain, Edward J. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S369000, C524S370000, C524S372000, C524S378000
Reexamination Certificate
active
10921398
ABSTRACT:
A thermoplastic molding composition comprising polycarbonate and at least one aromatic formal is disclosed. The formal conforms toThe composition that is characterized by its reduced water uptake, is useful especially for the production of optical data carriers, such as compact discs.
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Database CA ′Online! Chemical Abstracts Service, Columbus, Ohio, US: Tanimoto, Shiego et al: “A facile preparation of benzaldehyde diaryl acetals” XP002307253 gefunden im STN Database accession No. 90:6036 Zusammenfassung & Bulletin of the Institute for Chemical Research, Kyoto University, 56(3), 101-3 Coden: Bicras; ISSN: 0023-6071, 1978.
Bull. Inst. Chem. Res. Kyoto Univ., vol. 56, No. 6, (month unavailable) 1978, pp. 297-299.
Shigeo Tanimoto et al, “Syntheses of Formaldehyde Diaryl Acetals and Dithioacetals in the Presence of 18-Crown-6 Catalyst”.
Bruder Friedrich-Karl
Heuer Helmut-Werner
Wehrmann Rolf
Bayer MaterialScience AG
Cain Edward J.
Cheung Noland J.
Klemz Robert S.
Preis Aron
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