|
GB866408A
|
|
Quaternary ammonium salts
|
|
US2936251A
|
|
Amido carboxylic acids
|
|
US2878144A
|
|
Quaternary ammonium salts and fabric coated therewith
|
|
GB808265A
|
|
Quaternary ammonium salts
|
|
US2878273A
|
|
Quaternary ammonium salts
|
|
US2824861A
|
|
Quaternary compounds
|
|
US2806856A
|
|
Purification of pyrrolidone
|
|
GB760049A
|
|
New fatty acid derivatives
|
|
GB743742A
|
|
N-methylol polypyrrolidones
|
|
US2764604A
|
|
Acetylated hydroxy derivatives of fatty acids
|
|
US2711398A
|
|
Anhydrous formic acid solutions of polypyrrolidone
|
|
US2739959A
|
|
Polymerization of pyrolidone and piperidone
|
|
US2764601A
|
|
Textile assistants
|
|
US2806841A
|
|
Polymers of alpha-piperidone
|
|
US2806839A
|
|
Preparation of polyimines from 2-oxazolidone
|
|
US2736749A
|
|
Dye-fixing agents
|
|
US2668808A
|
|
Process of preparing guanidineformaldehyde condensation products
|
|
US2638463A
|
|
Polymers from pyrrolidone
|
|
US2634259A
|
|
Polymerization process for n-vinyl pyrrolidone
|
|
US2501783A
|
|
Water-soluble urea resins
|
