Basf Aktiengesellschaft

Basf Corporation

Simon A Jones

Claus-Ulrich Priester

Michael Kopietz

Ulrich Kalck

Peter Bassler

Hugo Fuchs

Josef Ritz

Hans Rupert Merkle

Heinz Auer

Alan C Handermann

Dirk Franke

Wolfgang Mattmann

Manfred Munzinger

Ronald R Eva

Atish Adhya

Paul Pijl

Alan Handerman

Edward Alan Davis

Arlen K Sarian

Method for isolating 3-[2-chloro-4-(trifluoromethyl)-phenoxy]-benzoic

A process for recovering polyamide from composite articles that contain polyamide involves (a) subjecting at substantially nondepolymerizing conditions the composite article to a solvent for polyamide for a time sufficient to dissolve substantially all of the polyamide and leaving an insoluble fraction; (b) separating insoluble fraction of the composite article from the dissolved polyamide; and (c) precipitating the dissolved polyamide with appropriate precipitants.

Recovery of polyamides from composite articles

Caprolactam is obtained from caprolactam-containing polymers in the presence of a base under reduced pressure by depolymerizing polymers which contain the repeating unit --[--N(H)--(CH.sub.2).sub.5 --C(O)--] or mixtures consisting essentially of

Obtaining caprolactam by cleavage of molten polycaprolactam

Caprolactam is obtained from mixtures which contain polymers or thermoplastic molding materials having the repeating unit

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St. Ilgen, Germany

Simon A Jones