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FMC Corp
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FMC Corp
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Priority to ES422124ApriorityCriticalpatent/ES422124A1/en
Publication of ES422124A1publicationCriticalpatent/ES422124A1/en
Treatments For Attaching Organic Compounds To Fibrous Goods
(AREA)
Polyesters Or Polycarbonates
(AREA)
Abstract
Process for the chemical modification of polyester fibers, of the type suitable for the production of textiles, to improve the cotton-like feel of polyester and impart cationic dyeability, characterized in that polyester is reacted with a treatment solution, in a ratio between the treatment solution and the polyester comprised between 1: 1 and 320: 1, for 1 to 180 minutes, said treatment solution having a ph of at least 2, and containing hydrogen peroxide values at a concentration sufficient to provide at least 0.5% values of hydrogen peroxide, based on the weight of the polyester, and a nitrogen compound selected from the group consisting of nitrites and nitrous acid, said nitrogen compound being present in a ratio between the hydrogen peroxide values and the nitrogen compound between 0.2: 1 and 5: 1. (Machine-translation by Google Translate, not legally binding)
ES422124A1974-01-081974-01-08Procedure for chemical modification of polyester fibers. (Machine-translation by Google Translate, not legally binding)
ExpiredES422124A1
(en)
Process for producing aryldiazonium salts from nitrogenous gases rich in nitrogen oxide, aqueous solutions of these salts and their use for the preparation of aminoazoaromatic compounds.
Procedure for the production of 6-phenyl - 4h - s - triazolo - (4, 3 - a) (1,4) - benzodiacepinas. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of polyamides or copolyamides formed of fibers of high molecular weight. (Machine-translation by Google Translate, not legally binding)