US4611051A
Expired / Lapsed
US
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Novel poly(ester-amide) hot-melt adhesives
Assignee: Union Camp Corp
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Filing: 1985-12-31
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Granted: 1986-09-09
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Expires: 2005-12-31
Abstract
Abstract In the present invention, poly(ester-amide) hot-melt adhesives are prepared from condensation of a mixture of polymeric fatty acids and 1,18-octadecanedicarboxylic acid, and a substantially equivalent proportion of a mixture of a polyamine and a polyol.
Inventors
- 👤 Kathryn S. Hayes
- 👤 Charles R. Frihart
- 👤 Ronald J. Wroczynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:57
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44; C08G69/02; C08G69/26; C08G69/34
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
72 words
A poly(ester-amide) adhesive composition which comprises the product of the polymerization of: (a) from about 95 to about 40 equivalent percent of a polymeric fatty acid and from about 5 to about 60 equivalent percent of eicosanedioic acid (1,18-octadecanedicarboxylic acid); and (b) a substantially equivalent amount of from about 30 to about 90 equivalent percent of an organic diamine and from about 70 to about 10 equivalent percent of an organic diol.
Claim 2
Dependent Claim
72 words
A poly(ester-amide) adhesive composition which comprises the product of the polymerization of: (a) from about 95 to about 40 equivalent percent of a polymeric fatty acid and from about 5 to about 60 equivalent percent of eicosanedioic acid (1,18-octadecanedicarboxylic acid); and (b) a substantially equivalent amount of from about 30 to about 90 equivalent percent of an organic diamine and from about 70 to about 10 equivalent percent of an organic diol.
Claim 3
Dependent Claim
25 words
The poly(ester-amide) adhesive composition of claim 1, wherein the organic diamine is selected from the group consisting of ethylenediamine, 1,3-propanediamine, 1,4-butanediamine, 1,6-hexamethylenediamine, piperazine, and 4,4'-methylenebis(cyclohexylamine).
Claim 4
Dependent Claim
33 words
The poly(ester-amide) adhesive composition of claim 1, wherein the organic diol is selected from the group consisting of ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexamethylenediol, cyclohexanedimethanol, and polyethylene glycol, polybutylene glycol and other polyalkylene oxides.
Claim 5
Dependent Claim
14 words
The poly(ester-amide) adhesive compositions as defined in claim 1 have application as hot-melt adhesives.
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) | 1989-09-08 | 1990-03-10 | 1990-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-08 | 1994-03-10 | 1994-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-08 | 1998-03-10 | 1998-09-09 | $7700.00 | Window Closed / Lapsed |