US4130603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic linear block copolyether-polyesters as hot melt adhesives for textiles
Assignee: Toray Industries Inc
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Filing: 1977-02-04
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Granted: 1978-12-19
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Expires: 1997-02-04
Abstract
Abstract A hot melt adhesive for textiles which comprises a thermoplastic linear block copolyether-polyester consisting essentially of a dicarboxylic acid unit derived from 40 to 60 mol % of terephthalic acid and 60 to 40 mol % of isophthalic acid, glycol unit derived from 1,4-butanediol and a polyether unit derived from polytetramethylene glycol having a molecular weight of about 600 to 1,300, wherein the amount of the polyether unit is 10 to 33 % by weight on the basis of the block copolyether-polyester and the block copolyether-polyester has a relative viscosity of 1.3 to 1.7 and a melting point of 95° to 145° C. The hot melt adhesive affords a large adhesive bond strength without spoiling the softness and liveliness of the textiles.
Inventors
- 👤 Chiaki Tanaka
- 👤 Yatabe Yoko
- 👤 Morikawa Masanobu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:38
CPC Classifications
C; C09; C09J; C09J167/00; C09J167/02; C09J167/025; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/672; Y; Y10; Y10S; Y10S524/00; Y10S524/904; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
A dry cleaning resistant hot-melt adhesive for textiles which comprises a thermoplastic linear block copolyether-polyester consisting essentially of a dicarboxylic acid unit derived from 40 to 60 mol % of terephthalic acid and 60 to 40 mol % of isophthalic acid, a diol unit derived from 1,4-butanediol and a polyether unit derived from poly tetramethylene glycol having a molecular weight of about 600 to 1300, wherein the amount of the polyether unit is 10 to 33% by weight on the basis of the block copolyether-polyester and the block copolyether-polyester has a relative viscosity of 1.3 to 1.7 as measured using 0.5 g. of polymer per 100 ml. of orthochlorophenol at 25° C. and a melting point of 95° to 145° C.
Claim 2
Dependent Claim
121 words
A dry cleaning resistant hot-melt adhesive for textiles which comprises a thermoplastic linear block copolyether-polyester consisting essentially of a dicarboxylic acid unit derived from 40 to 60 mol % of terephthalic acid and 60 to 40 mol % of isophthalic acid, a diol unit derived from 1,4-butanediol and a polyether unit derived from poly tetramethylene glycol having a molecular weight of about 600 to 1300, wherein the amount of the polyether unit is 10 to 33% by weight on the basis of the block copolyether-polyester and the block copolyether-polyester has a relative viscosity of 1.3 to 1.7 as measured using 0.5 g. of polymer per 100 ml. of orthochlorophenol at 25° C. and a melting point of 95° to 145° C.
Claim 3
Dependent Claim
133 words
Pulverized dry cleaning resistant hot-melt adhesive for textiles which comprises fine particles of a thermoplastic linear copolyether-polyester having a diameter of 1μ to 300μ, wherein the copolyether-polyester consists essentially of a dicarboxylic acid unit derived from 40 to 60 mol % of terephthalic acid and 60 to 40 mol % of isophthalic acid, a diol unit derived from 1,4-butanediol and a polyether unit derived from poly tetramethylene glycol having a molecular weight of about 600 to 1300, wherein the amount of the polyether unit is 10 to 33% by weight on the basis of the block copolyether-polyester and the block copolyether-polyester has a relative viscosity of 1.3 to 1.7 as measured using 0.5 g. of polymer per 100 ml. of orthochlorophenol at 25° C. and a melting point of 95° to 145° C.
Claim 4
Dependent Claim
133 words
Pulverized dry cleaning resistant hot-melt adhesive for textiles which comprises fine particles of a thermoplastic linear copolyether-polyester having a diameter of 1μ to 300μ, wherein the copolyether-polyester consists essentially of a dicarboxylic acid unit derived from 40 to 60 mol % of terephthalic acid and 60 to 40 mol % of isophthalic acid, a diol unit derived from 1,4-butanediol and a polyether unit derived from poly tetramethylene glycol having a molecular weight of about 600 to 1300, wherein the amount of the polyether unit is 10 to 33% by weight on the basis of the block copolyether-polyester and the block copolyether-polyester has a relative viscosity of 1.3 to 1.7 as measured using 0.5 g. of polymer per 100 ml. of orthochlorophenol at 25° C. and a melting point of 95° to 145° C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |