US3699187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt adhesives comprising {11 to {11 aliphatic dicarboxylic acid modified phthalic acid polyester mixtures
Assignee: Dynamit Nobel AG
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Filing: 1970-12-08
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Granted: 1972-10-17
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Expires: 1990-12-08
Abstract
Abstract A polyester-containing hot-melt adhesive for the bonding of materials, based on a phthalic acid, an aliphatic C6 to C12 dicarboxylic acid, and a glycol with from two to 10 carbon atoms in the radical between the two OH groups, comprising A. ABOUT 20 TO 95 WT. PERCENT OF A POLYESTER WHEREIN ABOUT 5 TO 20 MOLE PERCENT OF THE DICARBOXYLIC ACID COMPONENT COMPRISES AN ALIPHATIC DICARBOXYLIC ACID, THE POLYESTER HAVING A MELTING POINT OF OVER ABOUT 150* C, and B. ABOUT 5 TO 80 WT. PERCENT OF A POLYESTER WHEREIN ABOUT 25 TO 35 MOLE PERCENT OF THE DICARBOXYLIC ACID COMPONENT COMPRISES AN ALIPHATIC DICARBOXYLIC ACID, THE POLYESTER HAVING A MELTING POINT BETWEEN ABOUT 50 AND 150* C.
Inventors
- 👤 Arno Gardziella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:11
CPC Classifications
C; C09; C09J; C09J167/00; C09J167/02; C08; C08L; C08L67/00; C08L67/02; C08L2666/00; C08L2666/54; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
28 words
A hot-melt adhesive according to claim 1, wherein the phthalic acid component of the polyesters comprises terephthalic acid and up to about 50 mole percent of isophthalic acid.
Claim 2
Dependent Claim
28 words
A hot-melt adhesive according to claim 1, containing from about 0.01 to 0.3 weight percent of an inert, inorganic powder of a particle size smaller than micron size.
Claim 3
Dependent Claim
54 words
A hot-melt adhesive according to claim 2, wherein the phthalic acid of at least one of (a) and (b) comprises at least about 10 mole percent of isophthalic acid, said adhesive containing from about 0.05 to 0.1 percent by weight of an inert inorganic powder of a particle size smaller than 5 Mu .
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |