Patent US4340909A successfully refreshed from Google Patents.
Patent US4288480A successfully refreshed from Google Patents.
US4288480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive composition and coated product
Assignee: SPINNAKER INDUSTRIES Inc
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Filing: 1979-05-14
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Granted: 1981-09-08
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Expires: 1999-05-14
Abstract
Abstract Disclosed is an improved pressure-sensitive adhesive composition comprising an unvulcanized elastomer component comprising at least one block copolymer of styrene and either isoprene or butadiene with a polystyrene block on at least one end of the block copolymer, a tackifying resin component compatible with the elastomer component, a plasticizer component, and a modifier component of unvulcanized cis-1,4-polybutadiene. Also disclosed is the pressure-sensitive adhesive structure comprising a web of material, such as paper, upon which is coated a layer of the above-described composition.
Inventors
- 👤 Gerald G. Grzywinski
- 👤 Edward J. Foley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:54
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C09J7/00; C09J7/20; C09J7/21; C09J7/30; C09J7/38; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/28; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10S525/00; Y10S525/901; Y10T; Y10T428/00; Y10T428/14; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/28; Y10T428/2839; Y10T428/2848; Y10T428/2852; Y10T428/2878; Y10T428/2883; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31931
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
A pressure-sensitive adhesive composition comprising a mixture of: A. 100 parts by weight of an unvulcanized elastomer component comprising at least one block copolymer of styrene and either isoprene or butadiene, with a polystyrene block on at least one end of the block copolymer; B. about 100 to about 250 parts by weight of a tackifying resin component compatible with the elastomer component; C. about 10 to about 75 parts by weight of a plasticizer component; and D. about 2 to about 100 parts by weight of a modifier component consisting essentially of unvulcanized cis-1,4-polybutadiene.
Claim 2
Dependent Claim
95 words
A pressure-sensitive adhesive composition comprising a mixture of: A. 100 parts by weight of an unvulcanized elastomer component comprising at least one block copolymer of styrene and either isoprene or butadiene, with a polystyrene block on at least one end of the block copolymer; B. about 100 to about 250 parts by weight of a tackifying resin component compatible with the elastomer component; C. about 10 to about 75 parts by weight of a plasticizer component; and D. about 2 to about 100 parts by weight of a modifier component consisting essentially of unvulcanized cis-1,4-polybutadiene.
Claim 3
Dependent Claim
44 words
The pressure-sensitive adhesive composition according to claim 1, wherein the elastomer component is provided by a mixture of different block copolymers of styrene and either isoprene or butadiene, each of which has a polystyrene block on at least one end of the block copolymer.
Claim 4
Dependent Claim
30 words
The pressure-sensitive adhesive composition according to claim 1, wherein the amount of polystyrene in the elastomer component is from about 10% to about 40%, by weight, of the elastomer component.
Claim 5
Dependent Claim
35 words
A pressure-sensitive adhesive structure comprising a web of sheet material having coated on at least one side a layer of the composition of claim 1 in a thickness of from 0.5 mils to 3 mils.
Claim 6
Dependent Claim
43 words
A laminated sheet material for use as pressure-sensitive adhesive labels and the like comprising, in the following order, a paper base sheet, a layer of release material, a layer of the pressure-sensitive adhesive composition according to claim 1, and a paper face sheet.
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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |