Stock material or miscellaneous articles – Composite – Of polyester
Patent
1984-04-13
1986-02-04
Bleutge, John C.
Stock material or miscellaneous articles
Composite
Of polyester
428910, 525176, C08L 6702, B32B 2736
Patent
active
045686165
ABSTRACT:
This invention pertains to a polyester composition containing finely divided polymer particles in a substantially homodisperse distribution. The polymer particles are prepared in an emulsion-polymerization process and are crosslinked.
The polymer particles exhibit an extremely narrow grain-size distribution and are incorporated into the polyester during the synthesis thereof.
The invention also relates to films, particularly stretched films, which are produced from the polyester composition and which can also be used as base films for the production of composite films.
It is additionally also possible to produce filaments and fibers from the composition according to the invention or with the addition of this composition to other polymers.
The films are preferably used as bases for magnetic recording elements or for capacitors, and fiber or filaments are employed in the production of tire cord.
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M. Woods et al., "Monodisperse Latices: I. Emulsion Polymerization with Mixtures of Anionic and Nonionic Surfactants," 40 Proceedings of the Paint Research Institute 541 (Dec. 1968).
G. Lohr, "The Determination of Particle Size Distribution of Aqueous Dispersions in the Submicroscopic Range by Aerosol Spectroscopy," 43 Organic Coatings and Polymer Division 420 (1980).
Denneler Werner
Engel Dieter
Seifried Walter
Bleutge John C.
Hoechst Aktiengesellschaft
Lydon James C.
Short Patricia
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