US3839243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dipentene/beta-pinene copolymers and elastomers
Assignee: Wyeth Holdings LLC
•
Filing: 1973-02-26
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Granted: 1974-10-01
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Expires: 1993-02-26
Abstract
Abstract A process for the production of a series of Beta pinene/dipentene copolymers is given whereby the ratio of the monomers are varied to produce a variety of polyterpene resins having utility as hot-melt coating compositions and pressuresensitive adhesive compositions.
Inventors
- 👤 E Ruckel
- 👤 R Phillips
- 👤 H Arlt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:39
CPC Classifications
C; C08; C08F; C08F10/00; C09; C09J; C09J123/00; C09J123/02; C08L; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
14 words
AN ADHESIVE COMPOSITION COMPRISING A POLYTERPENE CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE STRUCTURE:
Claim 2
Dependent Claim
14 words
AN ADHESIVE COMPOSITION COMPRISING A POLYTERPENE CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE STRUCTURE:
Claim 3
Dependent Claim
50 words
A pressure-sensitive adhesive composition comprising the polyterpene of claim 1 wherein the ratio of m to n + q is between 9:1 and 3:2 and an elastomer, said elastomer being present in the amount of 25 to 75 percent, by weight, based on the total weight of polyterpene and elastomer.
Claim 4
Dependent Claim
50 words
A hot-melt adhesive composition comprising the polyterpene of claim 1 wherein the ratio of m to n + q is between 1:1 and 1:19 and an elastomer, said elastomer being present in the amount of 25 to 75 percent, by weight, based on the total weight of polyterpene and elastomer.
Claim 5
Dependent Claim
11 words
The composition of claim 3 containing in addition a wax extender.
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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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |