IT1048045B - Water-soluble polyurethanes for sizing of textiles - derived from anionic sulphonated polyesters (BE040576) - Google Patents
Water-soluble polyurethanes for sizing of textiles - derived from anionic sulphonated polyesters (BE040576)Info
- Publication number
- IT1048045B IT1048045B IT5201475A IT5201475A IT1048045B IT 1048045 B IT1048045 B IT 1048045B IT 5201475 A IT5201475 A IT 5201475A IT 5201475 A IT5201475 A IT 5201475A IT 1048045 B IT1048045 B IT 1048045B
- Authority
- IT
- Italy
- Prior art keywords
- water
- textiles
- sizing
- derived
- polyurethanes
- Prior art date
Links
Abstract
Water-soluble polyurethanes and their prepn. by reaction of (A) an anionic sulphonated polyester with average mol. wt. 500-3000, acid valve below 20 mg KOH/g., and S content 0.8-2 wt. %, with (B) >=1 diisocyanate, at 130-230 degrees C in molar ratio of NCO/OH+COOH 1. The opds. are used as sizes for textiles, esp. warp yarns in weaving, and for re-sticking the grain and flesh sides of leather. The polyurethanes dissolve readily in cold water to give stable solns. They are esp. suitable for sizing synthetic yarns, and do not dirty or block up the looms.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7436705A FR2290460A1 (en) | 1974-11-05 | 1974-11-05 | WATER-SOLUBLE POLYURETHANNES MANUFACTURING PROCESS |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1048045B true IT1048045B (en) | 1980-11-20 |
Family
ID=9144670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5201475A IT1048045B (en) | 1974-11-05 | 1975-10-31 | Water-soluble polyurethanes for sizing of textiles - derived from anionic sulphonated polyesters (BE040576) |
Country Status (2)
Country | Link |
---|---|
ES (1) | ES442352A1 (en) |
IT (1) | IT1048045B (en) |
-
1975
- 1975-10-31 IT IT5201475A patent/IT1048045B/en active
- 1975-11-05 ES ES442352A patent/ES442352A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES442352A1 (en) | 1977-04-01 |
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