US4766169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tackifiers and their use in pressure sensitive adhesives
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1986-08-18
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Granted: 1988-08-23
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Expires: 2006-08-18
Abstract
Abstract Petroleum resins having a softening point from 10°C to 80°C obtained from C<sub>5</sub> olefines and diolefines and one or more monovinyl aromatic compounds which contain from 10 to 30 wt. % of the aromatic are useful as tackifiers for carboxylated styrene butadiene copolymer to produce pressure sensitive additives especially aqueous based adhesive when the resin is in the form of an emulsion which is also claimed.
Inventors
- 👤 Andre Lepert
- 👤 Morris L. Evans
- 👤 Lutz E. Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:55
CPC Classifications
C; C09; C09J; C09J109/00; C09J109/06; C09J113/00; C09J113/02; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J7/383; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
66 words
An aqueous emulsion containing from 40% to 70% by weight of a resin having a softening point from 10° C. to 80° C., and said resin being a Friedel-Crafts catalysed polymerization copolymer of a feed which is predominantly petroleum cracked distillate C 5 olefines and diolefines and one or more monovinyl aromatic compounds, said resin containing from 10 to 30 wt.% of the monovinyl aromatic compounds.
Claim 2
Dependent Claim
66 words
An aqueous emulsion containing from 40% to 70% by weight of a resin having a softening point from 10° C. to 80° C., and said resin being a Friedel-Crafts catalysed polymerization copolymer of a feed which is predominantly petroleum cracked distillate C 5 olefines and diolefines and one or more monovinyl aromatic compounds, said resin containing from 10 to 30 wt.% of the monovinyl aromatic compounds.
Claim 3
Dependent Claim
21 words
An aqueous emulsion according to claim 1 in which the resin contains 10 to 25 wt.% of the monovinyl aromatic compound.
Claim 4
Dependent Claim
23 words
An aqueous emulsion according to claim 1 in which the resin has a softening point in the range 30° C. to 60° C.
Claim 5
Dependent Claim
15 words
An aqueous emulsion according to claim 1 in which the monovinyl aromatic compound is styrene.
Claim 6
Dependent Claim
20 words
An aqueous emulsion according to claim 2 wherein the resin contains 15 to 25 wt.% of the monovinyl aromatic compound.
Claim 7
Dependent Claim
14 words
An aqueous emulsion according to claim 5 wherein the monovinyl aromatic compound is styrene.
Claim 8
Dependent Claim
14 words
The aqueous emulsion of claim 1 containing about 50% by weight of said resin.
Claim 9
Dependent Claim
10 words
The aqueous emulsion of claim 1 containing an anionic emulsifier.
Claim 10
Dependent Claim
10 words
The aqueous emulsion of claim 1 containing a nonionic emulsifier.
References Cited (Backward Citations)
US4068062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |