US3927239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible strip coated with a pressure-sensitive adhesive composition tackified with phenol-diene-phenol resin adduct
Assignee: 3M Co
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Filing: 1973-10-23
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Granted: 1975-12-16
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Expires: 1993-10-23
Abstract
Abstract A pressure-sensitive adhesive article comprising a flexible strip having a pressure-sensitive adhesive coating comprising cis polybutadiene or natural rubber tackified with a phenol-dienephenol adduct prepared by reacting one mole of a non-conjugated diene with two moles of a phenolic compound in the presence of a Friedel-Crafts catalyst.
Inventors
- 👤 Ramsis Gobran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:46
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C09; C09J; C09J109/00; C08L; C08L2666/00; C08L2666/02; C08L2666/14; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883; Y10T428/31504; Y10T428/31826; Y10T428/31841; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31942
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
A PRESSURE-SENSITIVE ADHESIVE ARTICLE COMPRISING A FLEXIBLE SELF-SUPPORTING STRIP COATED OVER ONE MAJOR SURFACE WITH A THIN LAYER OF A PRESSURE-SENSITIVE ADHESIVE COMPOSITION COMPRISING: 1.5 TO 200 PARTS BY WEIGHT OF A PHENOL-DIENE-PHENOL ADDUCT WHEREIN THE DIENE PORTION IS ESSENTIALLY FREE OF ETHYLENIC UNSATURATION HAVING A MOLECULAR WEIGHT OF AT LEAST 400, SAID ADDUCT BEING PRODUCTED BY REACTING, IN AN INERT ATMOSPHERE, IN THE PRESENCE OF A FRIEDEL-CRAFTS CATALYST AND AT A TEMPERATURE IN THE RANGE OF 20*C-235*C, 1 MOLE OF NON-CONJUGATED DIENE WITH 2 MOLES OF A PHENOLIC COMPOUND HAVING ONLY ONE RING CARBON ATOM WHICH IS SUCCEPTIBLE TO ALKYLATION, AND
Claim 2
Dependent Claim
102 words
A PRESSURE-SENSITIVE ADHESIVE ARTICLE COMPRISING A FLEXIBLE SELF-SUPPORTING STRIP COATED OVER ONE MAJOR SURFACE WITH A THIN LAYER OF A PRESSURE-SENSITIVE ADHESIVE COMPOSITION COMPRISING: 1.5 TO 200 PARTS BY WEIGHT OF A PHENOL-DIENE-PHENOL ADDUCT WHEREIN THE DIENE PORTION IS ESSENTIALLY FREE OF ETHYLENIC UNSATURATION HAVING A MOLECULAR WEIGHT OF AT LEAST 400, SAID ADDUCT BEING PRODUCTED BY REACTING, IN AN INERT ATMOSPHERE, IN THE PRESENCE OF A FRIEDEL-CRAFTS CATALYST AND AT A TEMPERATURE IN THE RANGE OF 20*C-235*C, 1 MOLE OF NON-CONJUGATED DIENE WITH 2 MOLES OF A PHENOLIC COMPOUND HAVING ONLY ONE RING CARBON ATOM WHICH IS SUCCEPTIBLE TO ALKYLATION, AND
Claim 3
Dependent Claim
10 words
ABOUT 100 PARTS BY WEIGHT CIS-POLYBUTADIENE OR NATURAL RUBBER POLYMER.
Claim 4
Dependent Claim
10 words
ABOUT 100 PARTS BY WEIGHT CIS-POLYBUTADIENE OR NATURAL RUBBER POLYMER.
Claim 5
Dependent Claim
10 words
about 100 parts by weight cis-polybutadiene or natural rubber polymer.
Claim 6
Dependent Claim
10 words
about 100 parts by weight cis-polybutadiene or natural rubber polymer.
Claim 7
Dependent Claim
14 words
The article of claim 1 wherein said strip is a strip of cellulose acetate.
Claim 8
Dependent Claim
10 words
about 100 parts by weight cis-polybutadiene or natural rubber polymer.
Claim 9
Dependent Claim
10 words
about 100 parts by weight cis-polybutadiene or natural rubber polymer.
Claim 10
Dependent Claim
10 words
about 100 parts by weight cis-polybutadiene or natural rubber polymer.
Claim 11
Dependent Claim
10 words
about 100 parts by weight cis-polybutadiene or natural rubber polymer.
Claim 12
Dependent Claim
24 words
A pressure-sensitive adhesive article comprising a flexible self-supporting strip coated over one major surface with a thin layer of a pressure-sensitive adhesive composition comprising:
Claim 13
Dependent Claim
24 words
A pressure-sensitive adhesive article comprising a flexible self-supporting strip coated over one major surface with a thin layer of a pressure-sensitive adhesive composition comprising:
Claim 14
Dependent Claim
24 words
A pressure-sensitive adhesive article comprising a flexible self-supporting strip coated over one major surface with a thin layer of a pressure-sensitive adhesive composition comprising:
Claim 15
Dependent Claim
24 words
A pressure-sensitive adhesive article comprising a flexible self-supporting strip coated over one major surface with a thin layer of a pressure-sensitive adhesive composition comprising:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |