Patent US4468490A successfully refreshed from Google Patents.
US4468490A
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US
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Adhesive compositions
Assignee: Eastman Chemical Co
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Filing: 1984-03-21
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Granted: 1984-08-28
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Expires: 2004-03-21
Abstract
Abstract Disclosed are blends of polyesters and esters of glycerin or propylene glycol which are useful as hot-melt adhesives for fabrics.
Inventors
- 👤 Max F. Meyer, Jr.
- 👤 Richard L. McConnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:39
CPC Classifications
C; C09; C09J; C09J167/00; C09J167/02; C08; C08L; C08L2666/00; C08L2666/28; C08L2666/34
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
122 words
Adhesive composition comprising (a) a polyester derived from 50 to 100 mole % of an acid component comprising terephthalic acid, isophthalic acid, or a mixture of terephthalic and isophthalic acid, and a glycol component comprising at least one glycol having from 2 to 12 carbon atoms, said polyester having a melting point of about 80°-180° C. and a heat of fusion of less than 10 calories per gram, and (b) from about 0.2% to about 25% based on the weight of said polyester of an ester selected from ##STR6## wherein R 1 is ##STR7## or H and R 2 and R 3 are each ##STR8## or H, and at least one of R 1 , R 2 and R 3 is ##STR9##
Claim 2
Dependent Claim
122 words
Adhesive composition comprising (a) a polyester derived from 50 to 100 mole % of an acid component comprising terephthalic acid, isophthalic acid, or a mixture of terephthalic and isophthalic acid, and a glycol component comprising at least one glycol having from 2 to 12 carbon atoms, said polyester having a melting point of about 80°-180° C. and a heat of fusion of less than 10 calories per gram, and (b) from about 0.2% to about 25% based on the weight of said polyester of an ester selected from ##STR6## wherein R 1 is ##STR7## or H and R 2 and R 3 are each ##STR8## or H, and at least one of R 1 , R 2 and R 3 is ##STR9##
Claim 3
Dependent Claim
17 words
Adhesive composition according to claim 1 wherein said polyester comprises at least 60 mole % terephthalic acid.
Claim 4
Dependent Claim
19 words
Adhesive composition according to claim 2 wherein said polyester comprises up to 40 mole % isophthalic or glutaric acid.
Claim 5
Dependent Claim
24 words
Adhesive composition according to claim 1 wherein said glycol component comprises at least one glycol selected from ethylene glycol, diethylene glycol, 1,4-butanediol and 1,6-hexanediol.
Claim 6
Dependent Claim
20 words
Adhesive composition according to claim 1 wherein said ester is at least 60% by weight of a monoester of glycerin.
Claim 7
Dependent Claim
15 words
Adhesive composition according to claim 1 wherein said ester comprises an ester of propylene glycol.
Claim 8
Dependent Claim
13 words
Adhesive composition according to claim 1 wherein said ester comprises an acetylated monoglyceride.
Claim 9
Dependent Claim
13 words
Adhesive composition according to claim 1 wherein said ester comprises a succinylated monoglyceride.
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) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |