US3853826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High piperylene resin with boron catalyst
Assignee: Goodyear Tire and Rubber Co
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Filing: 1973-09-14
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Granted: 1974-12-10
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Expires: 1993-09-14
Abstract
Abstract There is disclosed a hydrocarbon derived resin having the structure characterized by a softening point in the range of about 10*C. to about 40*C. and comprising from about 80 to about 100 percent units derived from piperylene and correspondingly up to about 20 weight percent units derived from 2-methyl-2-butene prepared by the method which comprises polymerizing a mixture which comprises from about 75 to about 100 weight percent of piperylene and up to about 25 weight percent of 2-methyl-2-butene at a temperature in the range of about -10*C. to about 50*C. in the presence of an anhydrous catalyst selected from the group consisting of boron trifluoride and a boron trifluoride etherate having from about 2 to about 12 carbon atoms. The resin unexpectedly has a relatively narrow molecular weight throughout its softening point range and can be prepared with a relatively controlled softening point. The resin has particular utility when combined as an admixture with rubber to form pressure sensitive adhesives.
Inventors
- 👤 Cyr D St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:42
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F36/00; C08F36/02; C08F36/04; C08L; C08L21/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
A HYDROCARBON DERIVED RESIN HAVING THE STRUCTURE CHARACTERIZED BY SOFTENING POINT IN THE RANGE OF ABOUT 10:C TO ABOUT 40*C AND COMPRISING FROM ABOUT 95 TO ABOUT 100 WEIGHT PERCENT UNITS DERIVED FROM PIPERYLENE AND CORRESPONDINGLY UP TO ABOUT 5 WEIGHT PERCENT UNITS DERIVED FROM 2-METHYL-2BUTENE PREPARED BY THE METHOD WHICH COMPRISES POLYMERIZING A MIXTURE WHICH COMPRISES FROM ABOUT 90 TO ABOUT 100 WEIGHT PERCENT OF PIPERYLENE AND UP TO ABOUT 10 WEIGHT PERCENT OF 2-METHYL-2-BUTENE AT TEMPERATURE IN THE RANGE OF ABOUT 0*C TO ABOUT 50*C IN THE PRESENCE OF AN ANHYDROUS CATALYST SELECTED FROM THE GROUP CONSISTING OF BORON TRIFLUORIDE AND A BORON TRIFLUORIDE EHTERATE DERIVED FROM BORON TRIFLUORIDE AND AN EHTER SELECTED FROM DIMETHYL ETHER, DIETHYL ETHER, METHYL ETHYL EHTER, DI-N-PROPYL ETHER, DIISOPROPYL ESTER, DI-N-BUTYL ETHER, DIISOBUTYL ETHER, DI-T-BUTYL ETHER, DI-N-ETHER, DIISOAMYL ETHER, DI-T-AMYL ETHER, DIISOHEXYL EHTER, DI-N-HEXYL ETHER, DI-THEXYL EHTER AND BUTYL (2-ETHYL HEXYL) ETHER.
Claim 2
Dependent Claim
149 words
A HYDROCARBON DERIVED RESIN HAVING THE STRUCTURE CHARACTERIZED BY SOFTENING POINT IN THE RANGE OF ABOUT 10:C TO ABOUT 40*C AND COMPRISING FROM ABOUT 95 TO ABOUT 100 WEIGHT PERCENT UNITS DERIVED FROM PIPERYLENE AND CORRESPONDINGLY UP TO ABOUT 5 WEIGHT PERCENT UNITS DERIVED FROM 2-METHYL-2BUTENE PREPARED BY THE METHOD WHICH COMPRISES POLYMERIZING A MIXTURE WHICH COMPRISES FROM ABOUT 90 TO ABOUT 100 WEIGHT PERCENT OF PIPERYLENE AND UP TO ABOUT 10 WEIGHT PERCENT OF 2-METHYL-2-BUTENE AT TEMPERATURE IN THE RANGE OF ABOUT 0*C TO ABOUT 50*C IN THE PRESENCE OF AN ANHYDROUS CATALYST SELECTED FROM THE GROUP CONSISTING OF BORON TRIFLUORIDE AND A BORON TRIFLUORIDE EHTERATE DERIVED FROM BORON TRIFLUORIDE AND AN EHTER SELECTED FROM DIMETHYL ETHER, DIETHYL ETHER, METHYL ETHYL EHTER, DI-N-PROPYL ETHER, DIISOPROPYL ESTER, DI-N-BUTYL ETHER, DIISOBUTYL ETHER, DI-T-BUTYL ETHER, DI-N-ETHER, DIISOAMYL ETHER, DI-T-AMYL ETHER, DIISOHEXYL EHTER, DI-N-HEXYL ETHER, DI-THEXYL EHTER AND BUTYL (2-ETHYL HEXYL) ETHER.
Claim 3
Dependent Claim
100 words
The hydrocarbon derived resin of claim 1 having the softening point in the range of about 10*C to about 40*C. and modified by containing up to about 15 weight percent units derived from compounds selected from piperylene dimers, piperylene trimers and other unsaturated hydrocarbons containing from 4 to 6 carbon atoms, said modification accomplished by modifying the polymerization mixture with the addition of up to about 20 parts by weight of the compound selected from piperylene dimers, piperylene trimers and other unsaturated hydrocarbons containing from 4 to 6 carbon atoms to 100 parts by weight of the piperylene/2-methyl-2-butene monomer mixture.
Claim 4
Dependent Claim
43 words
The hydrocarbon derived resin of claim 2 wherein the said other unsaturated hydrocarbon containing from 4 to 6 carbon atoms comprise primarily monomers selected from butene, 2-methyl-1-butene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, 3,3-dimethyl-1-butene, 1-pentene, 2-pentene, 2-methyl-1-pentene, 2-methyl-2-pentene, 3-methyl-2-pentene, 4-methyl-1-pentene, 4-methyl-2-pentene, 2-hexene, isoprene, cyclopentene, cyclohexene and 1,3-cyclopentadiene.
Claim 5
Dependent Claim
26 words
The hydrocarbon-derived resin of claim 1 where the catalyst is selected from boron trifluoride and a boron trifluoride etherate derived from boron trifluoride and diethyl ether.
Claim 6
Dependent Claim
47 words
The hydrocarbon derived resin of claim 4 prepared by polymerizing the monomer mixture at a temperature in the range of about 10* C. to about 35*C. in the presence of an inert diluent selected from aliphatic hydrocarbons, aromatic hydrocarbons and unreacted residual hydrocarbons from the reaction 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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |