US4452853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyether esters for the cementing of textiles
Assignee: Dynamit Nobel AG
•
Filing: 1982-08-05
•
Granted: 1984-06-05
•
Expires: 2002-08-05
Abstract
Abstract A polyether ester having a melting point of 95 DEG to 125 DEG C. based on 1,4-butanediol, terephthalic acid and isophthalic acid in a molar ratio of 48 to 55:52 to 45 and a content of 10.5 to 25 wt % of polyethylene glycol with a molar mass of 0.4 to 6 kg/mol is presented as a suitable fusion adhesive for textiles. The bonds prove to be resistant to hot water and perchloroethylene.
Inventors
- 👤 Gerhard Schade
- 👤 Peter Uckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:34
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/672; C09; C09J; C09J167/00; C09J167/02; C09J167/025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
Polyether ester for the cementing of textiles comprising terephthalic acid, isophthalic acid, 1,4-butanediol and a polyalkylene ether diol, having a melting point of 95° to 125° C. and a relative viscosity, measured at 25° C. on 1 g of polyether ester in 100 ml of a mixture of 60-wt-parts of phenol and 40 wt-parts of 1,1,2,2,-tetrachloroethane, from 1.85 to 2.20, wherein the molar ratio of terephthalic acid to isophthalic acid is 48 to 55:52 to 45 having a content of 10.5 to 25 wt % of polyalkylene ether diol with a molar mass of 0.4 to 6 kg/mol, relative to the weight sum of all the residues contained in the polyether ester.
Claim 2
Dependent Claim
112 words
Polyether ester for the cementing of textiles comprising terephthalic acid, isophthalic acid, 1,4-butanediol and a polyalkylene ether diol, having a melting point of 95° to 125° C. and a relative viscosity, measured at 25° C. on 1 g of polyether ester in 100 ml of a mixture of 60-wt-parts of phenol and 40 wt-parts of 1,1,2,2,-tetrachloroethane, from 1.85 to 2.20, wherein the molar ratio of terephthalic acid to isophthalic acid is 48 to 55:52 to 45 having a content of 10.5 to 25 wt % of polyalkylene ether diol with a molar mass of 0.4 to 6 kg/mol, relative to the weight sum of all the residues contained in the polyether ester.
Claim 3
Dependent Claim
15 words
Polyether ester as claimed in claim 1, wherein said polyalkylene ether diol is polyethylene glycol.
Claim 4
Dependent Claim
19 words
Polyether ester as claimed in claim 1, wherein said molar ratio of terephthalic acid to isophthalic acid is 50:50.
Claim 5
Dependent Claim
19 words
Polyether ester as claimed in claim 2, wherein the molar ratio of terephthalic acid to isophthalic acid is 50:50.
Claim 6
Dependent Claim
26 words
Polyether ester as claimed in claim 1, wherein up to 10% of the weight of said polyalkylene ether diol is comprised by di- and/or tri-ethylene glycol.
Claim 7
Dependent Claim
35 words
Polyether ester as claimed in claim 1, wherein up to 10% of the weight of said polyalkylene ether diol is comprised by an alkylene ether diol of lower molecular weight, the balance being polyethylene glycol.
References Cited (Backward Citations)
US3864315A
Cited
US4094721A
Cited
US4062907A
Cited
US4154918A
Cited
US4156774A
Cited
US4321341A
Cited
US4328333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |