US4810745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold-seal adhesives and comestible packages formed therewith
Assignee: Ineos Composites IP LLC
•
Filing: 1987-07-16
•
Granted: 1989-03-07
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Expires: 2007-07-16
Abstract
Abstract Comestibles are packaged in wrappers formed of plastic film or equivalent sheet material sealed with cold-seal adhesives containing a minor percentage of vinyl-pyrrolidone/styrene copolymer as a bond enhancement agent.
Inventors
- 👤 Charles O. Pike
- 👤 Tamela A. Viers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:20
CPC Classifications
C; C09; C09J; C09J121/00; C09J121/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883; Y10T428/2891
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
40 words
A cold-seal latex adhesive for use in sealing comestibles in wrapper packages which comprises a water dispersion of the following ingredients in the stated approximate weight percentages: ______________________________________
rubber 25-45%
acrylic polymer 20-25%
tackifier 25-35%
vinylpyrrolidone/ 4-8%.
styrene copolymer
______________________________________
Claim 2
Dependent Claim
40 words
A cold-seal latex adhesive for use in sealing comestibles in wrapper packages which comprises a water dispersion of the following ingredients in the stated approximate weight percentages: ______________________________________
rubber 25-45%
acrylic polymer 20-25%
tackifier 25-35%
vinylpyrrolidone/ 4-8%.
styrene copolymer
______________________________________
Claim 3
Dependent Claim
17 words
The adhesive of claim 1 which additionally contains up to about 1% by weight of a surfactant.
Claim 4
Dependent Claim
18 words
The adhesive of claim 1 which additionally contains up to about 1% by weight of a foam inhibitor.
Claim 5
Dependent Claim
18 words
The adhesive of claim 1 which additionally contains up to about 1% by weight of a dispersion stabilizer.
Claim 6
Dependent Claim
17 words
The adhesive of claim 1 which additionally contains up to about 2% by weight of an anti-oxidant.
Claim 7
Dependent Claim
18 words
The adhesive of claim 1 which additionally contains up to about 2% by weight of an antiblocking agent.
Claim 8
Dependent Claim
70 words
A cold-seal latex adhesive for use in sealing comestibles in wrapper packages which consists essentially of a o/w emulsion of the following ingredients in the stated approximate weight percentages: ______________________________________
rubber 25-45%
acrylic polymer 20-25%
tackifier 25-35%
vinylpyrrolidone/ 4-8%
styrene copolymer
surfactant up to about 1%
foam inhibitor up to about 1%
dispersion stabilizer
up to about 1%
antioxidant up to about 2%
antiblocking agent up to about 2%.
______________________________________
Claim 9
Dependent Claim
70 words
A cold-seal latex adhesive for use in sealing comestibles in wrapper packages which consists essentially of a o/w emulsion of the following ingredients in the stated approximate weight percentages: ______________________________________
rubber 25-45%
acrylic polymer 20-25%
tackifier 25-35%
vinylpyrrolidone/ 4-8%
styrene copolymer
surfactant up to about 1%
foam inhibitor up to about 1%
dispersion stabilizer
up to about 1%
antioxidant up to about 2%
antiblocking agent up to about 2%.
______________________________________
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) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |