C07D 201/12

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
7129347 Method for purifying caprolactam from waste containing polyamide using UV radiationJul 23, 04Oct 31, 06ZIMMER AKTIENGESELLSCHAFT
6498250 Process for nylon depolymerizationOct 23, 01Dec 24, 02DSM IP ASSETS B.V.
6087494 Depolymerization of polyamidesApr 29, 98Jul 11, 00DSM N.V.
6020486 Depolymerization of polyamidesJul 14, 98Feb 01, 003M INNOVATIVE PROPERTIES COMPANY, DSM IP ASSETS B.V.,
6011153 Process for the preparation of a mixture of .epsilon.-caprolactam, 6-aminocaproic acid and 6-aminocaproic amideAug 21, 98Jan 04, 00DSM N.V., E. I. DU PONT DE NEMOURS AND COMPANY, DMS N.V.,
5990306 Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpetSep 03, 97Nov 23, 99SHAW INDUSTRIES GROUP, INC.
5962681 Recovery of caprolactam monomer and oligomer from aqueous polycaprolactam extractsNov 18, 97Oct 05, 99BASF AKTIENGESELLSCHAFT
5948908 Process for depolymerizing polycaprolactam processing waste to form caprolactamMar 18, 96Sep 07, 99SHAW INDUSTRIES GROUP, INC.
5932724 Process for depolymerizing nylon-containing waste to form caprolactamApr 16, 97Aug 03, 99DSM N.V., SHAW INDUSTRIES GROUP, INC.,
5929234 Process for depolymerizing nylon-containing whole carpet to form caprolactamMay 21, 98Jul 27, 99DSM N.V., SHAW INDUSTRIES GROUP, INC.,
5869654 Process for depolymerizing polycaprolactam processing waste to form caprolactamApr 18, 97Feb 09, 99SHAW INDUSTRIES GROUP, INC.
5681952 Process for depolymerizing nylon-containing waste to form caprolactamDec 08, 95Oct 28, 97DSM IP ASSETS B.V., SHAW INDUSTRIES GROUP, INC.,
5668277 Depolymerization of polyamidesApr 15, 96Sep 16, 97DSM IP ASSETS B.V.
5656757 Monomer recovery from multi-component materialsAug 10, 95Aug 12, 97SHAW INDUSTRIES GROUP, INC.
5637700 Purification of caprolactamAug 30, 94Jun 10, 97BASF AKTIENGESELLSCHAFT
5556890 Reclaiming .epsilon.-caprolactam from carpet wasteJun 02, 94Sep 17, 96DSM IP ASSETS B.V.
5536831 Obtaining caprolactam by cleavage of molten polycaprolactamDec 12, 94Jul 16, 96BASF AKTIENGESELLSCHAFT
5495014 Preparation of caprolactamDec 19, 94Feb 27, 96BASF AKTIENGESELLSCHAFT
5495015 Process for producing caprolactam through hydrolytic cleavage of molten polycaprolactamDec 12, 94Feb 27, 96BASF AKTIENGESELLSCHAFT
5457197 Monomer recovery from multi-component materialsApr 08, 94Oct 10, 95AlliedSignal Inc.

Showing 1 to 20 of 35 results