US4289669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali-soluble hot melt adhesive compositions
Assignee: Chevron USA Inc
•
Filing: 1980-07-28
•
Granted: 1981-09-15
•
Expires: 2000-07-28
Abstract
Abstract Alkali-soluble hot melt adhesive compositions are provided which contain (a) about 10-40 weight % of an alkenyl succinic anhydride, (b) a carboxyl group containing ethylene copolymer, and (c) about 10-50 weight % of rosin.
Inventors
- 👤 Pallavoor R. Lakshmanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:59
CPC Classifications
C; C09; C09J; C09J193/00; C09J193/04; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/26; C08L2666/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
74 words
An alkali-soluble hot melt adhesive composition consisting essentially of: (a) 10-30 weight % of an alkenyl succinic anhydride, (b) 30-50 weight % of an ethylene polymer having an acid number of about 0.25-30.0, and (c) 10-50 weight % of a rosin material selected from natural rosins, hydrogenated rosins and isomerized rosins; said alkenyl succinic anhydride having been prepared by heating a high molecular weight alpha-olefin containing 30 or more carbon atoms with maleic anhydride.
Claim 2
Dependent Claim
74 words
An alkali-soluble hot melt adhesive composition consisting essentially of: (a) 10-30 weight % of an alkenyl succinic anhydride, (b) 30-50 weight % of an ethylene polymer having an acid number of about 0.25-30.0, and (c) 10-50 weight % of a rosin material selected from natural rosins, hydrogenated rosins and isomerized rosins; said alkenyl succinic anhydride having been prepared by heating a high molecular weight alpha-olefin containing 30 or more carbon atoms with maleic anhydride.
Claim 3
Dependent Claim
32 words
A composition of claim 1 containing about 15-35 weight % of the alkenyl succinic anhydride, about 35-45 weight % of the ethylene copolymer, and about 15-45 weight % of the rosin material.
Claim 4
Dependent Claim
22 words
A composition of claim 1 in which the carboxyl group-containing ethylene polymer is a polymer of ethylene and acrylic or methacrylic acid.
Claim 5
Dependent Claim
16 words
A composition of claim 3 in which the ethylene polymer also has polymerized therein vinyl acetate.
Claim 6
Dependent Claim
22 words
A composition of claim 2 in which the carboxyl group-containing ethylene polymer is a copolymer of ethylene and acrylic or methacrylic acid.
Claim 7
Dependent Claim
16 words
A composition of claim 5 in which the ethylene polymer also has polymerized therein vinyl acetate.
References Cited (Backward Citations)
US3485783A
Cited
US3912709A
Cited
US3896069A
Cited
US4105462A
Cited
US4158664A
Cited
US4146521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |