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US4447573A
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Textile hot-melt adhesive
Assignee: Huels AG
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Filing: 1982-09-22
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Granted: 1984-05-08
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Expires: 2002-09-22
Abstract
Abstract A textile hot-melt adhesive comprises a mixture of A. a linear, saturated, high-molecular weight copolyester (75-95 mole % of terephthalic acid, 5-25 mole % of (iso-)phthalic acid; 40-70 mole % of butanediol and 30-60 mole % of other aliphatic diols; B. 0.05-0.5% by weight of an inorganic powder (particle diameter: 0.5-3 μm); C. 0.01-0.2% by weight of an alkaline earth metal salt of a fatty acid (particle diameter: 40-60 μm; and D. optionally, customary auxiliary agents and additives.
Inventors
- 👤 Gernot Horlbeck
- 👤 Rainer Feldmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:28
CPC Classifications
D; D06; D06M; D06M17/00; D06M17/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
160 words
A textile hot-melt adhesive, comprising a mixture of A. a linear, saturated, high-molecular weight copolyester reaction product of I. 100 mole % of a dicarboxylic acid component of 75-95 mole % of terephthalic acid 5-25 mole % of isophthalic acid or phthalic acid, II. 100 mole % of a diol component of 40-70 mole % of 1,4-butanediol 30-60 mole % of another diol of 5-12 carbon atoms which is an alkane diol or an oxa- or dioxa-alkane diol, wherein the copolyester has a melting point of 110° to 130° C. and a crystallization half-life value, measured at 50° C., of <7 minutes; B. 0.05-0.5% by weight of an inert inorganic nucleating agent having an average particle diameter of 0.2-3 μm; and C. 0.01-0.2% by weight of an alkaline earth metal salt of a fatty acid of 11-18 carbon atoms and an average particle diameter of 40-60 μm; wherein all weight percentage ranges are based on the amount of component A.
Claim 2
Dependent Claim
160 words
A textile hot-melt adhesive, comprising a mixture of A. a linear, saturated, high-molecular weight copolyester reaction product of I. 100 mole % of a dicarboxylic acid component of 75-95 mole % of terephthalic acid 5-25 mole % of isophthalic acid or phthalic acid, II. 100 mole % of a diol component of 40-70 mole % of 1,4-butanediol 30-60 mole % of another diol of 5-12 carbon atoms which is an alkane diol or an oxa- or dioxa-alkane diol, wherein the copolyester has a melting point of 110° to 130° C. and a crystallization half-life value, measured at 50° C., of <7 minutes; B. 0.05-0.5% by weight of an inert inorganic nucleating agent having an average particle diameter of 0.2-3 μm; and C. 0.01-0.2% by weight of an alkaline earth metal salt of a fatty acid of 11-18 carbon atoms and an average particle diameter of 40-60 μm; wherein all weight percentage ranges are based on the amount of component A.
Claim 3
Dependent Claim
16 words
A textile hot-melt adhesive of claim 1 further comprising an additive useful in textile hot-melt adhesives.
Claim 4
Dependent Claim
18 words
A textile hot-melt adhesive of claim 1 wherein component A.I. is 80-90% mole % of terephthalic acid units.
Claim 5
Dependent Claim
20 words
A textile hot-melt adhesive of claim 1 or 3 wherein component A.II. comprises 35-55 mole % of an alkane diol.
Claim 6
Dependent Claim
15 words
A textile hot-melt adhesive of claim 4 wherein the alkane diol is 1,5-pentanediol,1,8-octanediol,1,10-decanediol,1,12-dodecanediol or 1,6-hexanediol.
Claim 7
Dependent Claim
22 words
A textile hot-melt adhesive of claim 1 or 3 wherein component A.II. comprises 50-60 mole % of an oxa- or dioxa-alkane diol.
Claim 8
Dependent Claim
16 words
A textile hot-melt adhesive of claim 6 wherein the diol is diethyleneglycol, dibutyleneglycol, 3-oxa-1,7-heptanediol or 3,8-dioxa-1,10-deconediol.
Claim 9
Dependent Claim
41 words
A textile hot-melt adhesive of claim 1 wherein the copolyester has a viscosity number (J) of 60-75 cm 3 /g, a Tg of 5°-30° C., a crystallization half-life of <7 min. (at 50° C.), and a melting point of 110°-130° C.
Claim 10
Dependent Claim
27 words
A textile hot-melt adhesive of claim 1 wherein the inorganic powder is titanium dioxide, talc, aluminum oxide, silicic acid, mica, barium sulfate, calcium carbonate, or calcium sulfate.
Claim 11
Dependent Claim
29 words
A textile hot-melt adhesive of claim 1 wherein the alkaline earth metal salt of a fatty acid is a stearate, oleate, palmitate or laurate of Mg, Ca or Ba.
Claim 12
Dependent Claim
20 words
A textile hot-melt adhesive of claim 2 wherein the additive is a UV stabilizer, a thermostabilizer or an optical brightener.
Claim 13
Dependent Claim
29 words
In a method of bonding to a textile comprising applying a hot-melt adhesive to the textile and heating, the improvement wherein the hot-melt adhesive is that of claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-08 | 1987-11-07 | 1988-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-08 | 1991-11-07 | 1992-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-08 | 1995-11-07 | 1996-05-08 | $7700.00 | Window Closed / Lapsed |