Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2003-12-19
2008-09-02
Zimmer, Marc S (Department: 1796)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C008S115600, C065S443000, C065S444000, C065S447000, C065S448000, C428S364000, C428S378000, C428S392000, C525S123000, C525S124000, C525S127000, C525S128000, C525S455000
Reexamination Certificate
active
07419721
ABSTRACT:
The present invention is directed to sizing compositions for glass fibers and glass fiber reinforced thermoplastic resins. The sizing composition comprises a maleic anhydride copolymer. Thermoplastic polyamide resin articles reinforced with glass fibers at least partially coated with a residue of the sizing composition can demonstrate a surprising improvement in strength of the reinforced polyamide resin when lubricated with a fatty acid metal salt and in the hydrolysis resistance when exposed to boiling water/ethylene glycol medium.
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Paint and Surface Coatings—Theory and Practice, 2nd Edition; authored by Bentley; edited by Lambourne et al., Woodhead Publishing, 1999, pp. 70-72.
PCT Search Report, corresponding to PCT/US2004/041731, mailed on Jul. 29, 2005.
Beerda Henri
Boelman Ronald
Dijt Jacob Cornelis
Tabak Johannes Leonardus
van de Heisteeg Bertho
Millman Dennis
PPG Industries Ohio Inc.
Zimmer Marc S
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