US3987123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Petroleum resins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1975-02-27
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Granted: 1976-10-19
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Expires: 1995-02-27
Abstract
Abstract High softening point resins are prepared by a process which comprises polymerizing in the presence of a Friedel-Crafts catalyst a mixture of (1) a feedstock comprising C 5 olefins and diolefins, C 6 olefins and diolefins or a mixture of C 5 and C 6 olefins and diolefins, said feedstock being obtained from the steam-cracking of petroleum feedstock and (2) a polymer obtained by the thermal or cationic polymerization of dicyclopentadiene, an alkyl cyclopentadiene dimer, a codimer of cyclopentadiene with an alkyl cyclopentadiene, a codimer of cyclopentadiene or an alkyl cyclopentadiene with a C 5 or a C 6 conjugated linear or non-cyclic diolefin, or a mixture of said dimer and codimers. The resin may be mixed with rubber to make a pressure-sensitive adhesive.
Inventors
- 👤 Andre Lepert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:50
CPC Classifications
C; C08; C08F; C08F277/00; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C09D11/108
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
119 words
A process for preparing a high softening point resin which comprises polymerising in the presence of a Friedel-Crafts catalyst a mixture of (1) a first feedstock comprising C 5 olefins and diolefins, C 6 olefins and diolefins or a mixture of C 5 and C 6 olefins and diolefins, said feedstock being obtained from the steam-cracking of a petroleum starting material and (2) a second feedstock being a polymer obtained by the thermal or cationic polymerisation of dicyclopentadiene, an alkyl cyclopentadiene dimer, a codimer of cyclopentadiene with an alkyl cyclopentadiene, a codimer of cyclopentadiene or an alkyl cyclopentadiene with a C 5 or a C 6 conjugated linear or non-cyclic diolefin, or a mixture of said dimers and codimers.
Claim 2
Dependent Claim
119 words
A process for preparing a high softening point resin which comprises polymerising in the presence of a Friedel-Crafts catalyst a mixture of (1) a first feedstock comprising C 5 olefins and diolefins, C 6 olefins and diolefins or a mixture of C 5 and C 6 olefins and diolefins, said feedstock being obtained from the steam-cracking of a petroleum starting material and (2) a second feedstock being a polymer obtained by the thermal or cationic polymerisation of dicyclopentadiene, an alkyl cyclopentadiene dimer, a codimer of cyclopentadiene with an alkyl cyclopentadiene, a codimer of cyclopentadiene or an alkyl cyclopentadiene with a C 5 or a C 6 conjugated linear or non-cyclic diolefin, or a mixture of said dimers and codimers.
Claim 3
Dependent Claim
27 words
A process according to claim 1 wherein, before the polymer obtained after thermal or cationic polymerisation is polymerised, low boiling oligomers are first removed by steam stripping.
Claim 4
Dependent Claim
13 words
A process according to claim 1 wherein feedstock (2) is a thermal polymer.
Claim 5
Dependent Claim
34 words
A process according to claim 1 wherein the steam cracked feedstock and thermal or cationic polymer are mixed in a weight ratio of between 10:1 and 1:1 before being subjected to Friedel-Crafts catalysed polymerisation.
Claim 6
Dependent Claim
15 words
A process according to claim 4 wherein said weight ratio is between 5.5:1 and 1.5:1.
Claim 7
Dependent Claim
22 words
A process according to claim 1 wherein the Friedel-Crafts catalysed polymerisation takes place at a temperature between 0° C and 80° C.
Claim 8
Dependent Claim
27 words
A process according to claim 1 wherein a branched chain reactive monoolefin is added to the mixture to be polymerised in the presence of a Friedel-Crafts catalyst.
Claim 9
Dependent Claim
17 words
A process according to claim 7 wherein said monoolefin contains 4 to 30 carbon atoms per molecule.
Claim 10
Dependent Claim
13 words
A process according to claim 7 wherein the monoolefin comprises light U.O.P. olefins.
Claim 11
Dependent Claim
34 words
A process according to claim 7 wherein the amount of branched chain reactive olefin is from 80 to 100% by weight based on the weight of thermal or cationic polymer in the polymerisation mixture.
Claim 12
Dependent Claim
118 words
A high softening point resin prepared by a process comprising polymerising in the presence of a Friedel-Crafts catalyst a mixture of (1) a first feedstock comprising C 5 olefins and diolefins, C 6 olefins and diolefins or a mixture of C 5 and C 6 olefins and diolefins, said feedstock being obtained from the steamcracking of a petroleum starting material and (2) a second feedstock being a polymer obtained by the thermal or cationic polymerisation of dicyclopentadiene, an alkyl cyclopentadiene dimer, a codimer of cyclopentadiene with an alkyl cyclopentadiene, a codimer of cyclopentadiene or an alkyl cyclopentadiene with a C 5 or a C 6 conjugated linear or non-cyclic diolefin, or a mixture of said dimers and codimers.
Claim 13
Dependent Claim
118 words
A high softening point resin prepared by a process comprising polymerising in the presence of a Friedel-Crafts catalyst a mixture of (1) a first feedstock comprising C 5 olefins and diolefins, C 6 olefins and diolefins or a mixture of C 5 and C 6 olefins and diolefins, said feedstock being obtained from the steamcracking of a petroleum starting material and (2) a second feedstock being a polymer obtained by the thermal or cationic polymerisation of dicyclopentadiene, an alkyl cyclopentadiene dimer, a codimer of cyclopentadiene with an alkyl cyclopentadiene, a codimer of cyclopentadiene or an alkyl cyclopentadiene with a C 5 or a C 6 conjugated linear or non-cyclic diolefin, or a mixture of said dimers and codimers.
Claim 14
Dependent Claim
13 words
A pressure sensitive adhesive comprising rubber and the resin according to claim 11.
Claim 15
Dependent Claim
19 words
An adhesive according to claim 12 wherein the weight ratio of resin to rubber is between 30:100 and 100:30.
Claim 16
Dependent Claim
85 words
A process for preparing a high softening point resin which comprises polymerizing in the presence of a Friedel-Crafts catalyst a mixture of (1) a first feedstock comprising C 5 olefins and diolefins, C 6 olefins and diolefins or a mixture of C 5 and C 6 olefins and diolefins, said feedstock being obtained from the steam-cracking of a petroleum starting material and (2) a second feedstock being a polymer obtained by the thermal or cationic polymerization of a feed comprising both dicyclopentadiene and methylcyclopentadiene dimer.
Claim 17
Dependent Claim
85 words
A process for preparing a high softening point resin which comprises polymerizing in the presence of a Friedel-Crafts catalyst a mixture of (1) a first feedstock comprising C 5 olefins and diolefins, C 6 olefins and diolefins or a mixture of C 5 and C 6 olefins and diolefins, said feedstock being obtained from the steam-cracking of a petroleum starting material and (2) a second feedstock being a polymer obtained by the thermal or cationic polymerization of a feed comprising both dicyclopentadiene and methylcyclopentadiene dimer.
Claim 18
Dependent Claim
27 words
A process according to claim 14 wherein, before the polymer obtained after thermal or cationic polymerization is polymerized, low boiling oligomers are first removed by steam stripping.
Claim 19
Dependent Claim
34 words
A process according to claim 14 wherein the steam cracked feedstock and thermal or cationic polymer are mixed in a weight ratio of between 10:1 and 1:1 before being subjected to Friedel-Crafts catalyzed polymerization.
Claim 20
Dependent Claim
15 words
A process according to claim 16 wherein said weight ratio is between 5.5:1 and 1.5:1.
Claim 21
Dependent Claim
54 words
A process according to claim 14 wherein a branched chain reactive monoolefin is added to the mixture to be polymerized in the presence of a Friedel-Crafts catalyst, the amount of branched chain reactive olefin being from 80 to 100% by weight based on the weight of thermal or cationic polymer in the polymerization mixture.
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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |