3846507 is referenced by 85 patents and cites 5 patents.

A fibre forming polyamide having improved basic dye affinity and reduced acid dye affinity is described. A process for producing such polyamide is also described and consists of producing a polymer having certain benzene sulphonate units occurring in the polymer and then blending such polymer with normal polyamide to improve the dyeing characteristics thereof.

Title
Polyamide blends with one polyamide containing phthalate sulfonate moieties and terphthalate on isophthalate residues
Application Number
05/241,838
Publication Number
3846507
Application Date
April 6, 1972
Publication Date
November 5, 1974
Inventor
Knowlton Barry R
Thomm Ernest C
Assignee
Union Carbide Canada
IPC
C08g 41/04
C08L 77/00
C08G 69/00
C08G 69/42
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