Patent US6253282B1 successfully refreshed from Google Patents.
US4071676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon resins
Assignee: Hoechst AG
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Filing: 1976-05-13
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Granted: 1978-01-31
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Expires: 1996-05-13
Abstract
Abstract A process for the preparation of a hydrocarbon resin which comprises polymerizing a mixture of (a) from 30 to 90% by weight of a dicyclopentadiene component comprising dicyclopentadiene and up to 30% by weight of an at most dialkylated dicyclopentadiene having from 1 to 4 carbon atoms in each alkyl substituent and (b) from 10 to 70% by weight of an aliphatic olefin containing 8 carbon atoms in the presence of a Friedel-Crafts catalyst and a solvent at a temperature of from 30° to 140° C wherein the polymer obtained is isolated as such or subsequently hydrogenated, and hydrocarbon resins prepared according to said process.
Inventors
- 👤 Gerhard Werner
- 👤 Peter Grafe
- 👤 Richard Sattelmeyer
- 👤 Heinz Schmelzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:05
CPC Classifications
C; C09; C09J; C09J157/00; C09J157/02; C08; C08F; C08F210/00; C08F210/14; C08F232/00; C08F232/02; C08F232/06; C08F8/00; C08F8/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
94 words
A process for the preparation of a hydrocarbon resin having a molecular weight of 400 to 2000 which comprises polymerizing a mixture of (a) from 30 to 90% by weight of a dicyclopentadiene component comprising dicyclopentadiene and up to 30% by weight of an at most dialkylated dicyclopentadiene having from 1 to 4 carbon atoms in each alkyl substituent and (b) from 10 to 70% by weight of an aliphatic olefin containing 8 carbon atoms in the presence of a Friedel-Crafts catalyst and a solvent at a temperature of from 30° to 140° C.
Claim 2
Dependent Claim
94 words
A process for the preparation of a hydrocarbon resin having a molecular weight of 400 to 2000 which comprises polymerizing a mixture of (a) from 30 to 90% by weight of a dicyclopentadiene component comprising dicyclopentadiene and up to 30% by weight of an at most dialkylated dicyclopentadiene having from 1 to 4 carbon atoms in each alkyl substituent and (b) from 10 to 70% by weight of an aliphatic olefin containing 8 carbon atoms in the presence of a Friedel-Crafts catalyst and a solvent at a temperature of from 30° to 140° C.
Claim 3
Dependent Claim
15 words
A process as claimed in claim 1 wherein the aliphatic olefin component (b) comprises diisobutylene.
Claim 4
Dependent Claim
33 words
A process as claimed in claim 1 wherein the polymerisation is effected in the presence of from 0.5 to 6% by weight, referred to the weight of the monomer mixture, of the catalyst.
Claim 5
Dependent Claim
52 words
A process as claimed in claim 1 wherein the solvent has a water content of below 0.1% by weight and is selected from the group consisting of an aromatic hydrocarbon, a liquid halogenated hydrocarbon containing from 1 to 6 carbon atoms and an aliphatic hydrocarbon containing from 5 to 14 carbon atoms.
Claim 6
Dependent Claim
15 words
A process as claimed in claim 1 wherein the catalyst comprises a boron trifluoride etherate.
Claim 7
Dependent Claim
15 words
A process as claimed in claim 1 wherein after the polymerisation the catalyst is removed.
Claim 8
Dependent Claim
21 words
A process as claimed in claim 1 wherein the polymer obtained is subsequently hydrogenated in the presence of a metal catalyst.
Claim 9
Dependent Claim
21 words
A process as claimed in claim 7 wherein the hydrogenation is effected at a temperature of from 150° to 260° C.
Claim 10
Dependent Claim
17 words
A process as claimed in claim 7 wherein the metal catalyst comprises finely divided nickel on kieselguhr.
Claim 11
Dependent Claim
104 words
An olefinically unsaturated hydrocarbon resin having a molecular weight of from 400 to 2000, a melting point of from 20° to 140° C (by the capillary method) and a viscosity of from 10 to 5000 cP (as a 70% toluene solution at 20° C) and comprising (a) from 30 to 90% by weight of polymerised units of a dicyclopentadiene component comprising dicyclopentadiene and up to 30% by weight of an at most dialkylated dicyclopentadiene having from 1 to 4 carbon atoms in each alkyl substituent and (b) from 10 to 70% by weight of polymerised units of an aliphatic olefin containing 8 carbon atoms.
Claim 12
Dependent Claim
104 words
An olefinically unsaturated hydrocarbon resin having a molecular weight of from 400 to 2000, a melting point of from 20° to 140° C (by the capillary method) and a viscosity of from 10 to 5000 cP (as a 70% toluene solution at 20° C) and comprising (a) from 30 to 90% by weight of polymerised units of a dicyclopentadiene component comprising dicyclopentadiene and up to 30% by weight of an at most dialkylated dicyclopentadiene having from 1 to 4 carbon atoms in each alkyl substituent and (b) from 10 to 70% by weight of polymerised units of an aliphatic olefin containing 8 carbon atoms.
Claim 13
Dependent Claim
14 words
A resin as claimed in claim 10 containing only units of dicyclopentadiene and diisobutylene.
Claim 14
Dependent Claim
108 words
A hydrogenated hydrocarbon resin having a molecular weight of from 500 to 1500, a bromine number below 25, a melting point of from 20° to 140° C (by the capillary method) and a viscosity of from 10 to 5000 cP (as a 70% toluene solution at 20° C) and comprising (a) from 30 to 90% by weight of polymerised units of a dicyclopentadiene component comprising dicyclopentadiene and up to 30% by weight of an at most dialkylated dicyclopentadiene having from 1 to 4 carbon atoms in each alkyl substituent and (b) from 10 to 70% by weight of polymerised units of an aliphatic olefin containing 8 carbon atoms.
Claim 15
Dependent Claim
108 words
A hydrogenated hydrocarbon resin having a molecular weight of from 500 to 1500, a bromine number below 25, a melting point of from 20° to 140° C (by the capillary method) and a viscosity of from 10 to 5000 cP (as a 70% toluene solution at 20° C) and comprising (a) from 30 to 90% by weight of polymerised units of a dicyclopentadiene component comprising dicyclopentadiene and up to 30% by weight of an at most dialkylated dicyclopentadiene having from 1 to 4 carbon atoms in each alkyl substituent and (b) from 10 to 70% by weight of polymerised units of an aliphatic olefin containing 8 carbon atoms.
Claim 16
Dependent Claim
32 words
An adhesive composition comprising a hydrogenated hydrocarbon resin as claimed in claim 12 and at least one further ingredient selected from the group consisting of other resins, pigments, fillers, solvents and stabilisers.
Claim 17
Dependent Claim
32 words
A composition as claimed in claim 13 which also contains natural rubber or a synthetic rubber and from 40 to 120% by weight, referred to the rubber, of the hydrogenated hydrocarbon resin.
Claim 18
Dependent Claim
12 words
A composition as claimed in claim 13 which contains a terpene-phenol resin.
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) | 1981-01-30 | 1981-08-01 | 1982-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-30 | 1985-08-01 | 1986-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-30 | 1989-08-01 | 1990-01-31 | $7700.00 | Window Closed / Lapsed |