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US 10,982,081 B2Granted
Hydrocarbon resins for butyl based compositions and methods of making the same
AssigneeExxonMobil Chemical Patents Inc.
InventorsSujith Nair, Ranjan Tripathy, Sunny Jacob, Yuan-Ju Chen
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Abstract
Butyl based composition having hydrocarbon resins are provided herein. The hydrocarbon resin has a Tg from −10° C. to 25° C., a number average molecular weight between 20 to 500, a weight average molecular weight between about 100 to about 2000, and a glass transition temperature between about 0° C. to about −80° C.
Claims20
A hydrocarbon resin comprising:
- an aromatic H mole content between about 0% to about 10%;
- an olefin H mole content between about 0% to about 30%;
- and
- an aliphatic H content between about 70% to about 100%,
- wherein the resin has a number average molecular weight between about 20 to about 500 g/mole, a weight average molecular weight between about 100 to about 2,000 g/mole, and a glass transition temperature between about 0° C. to about −80° C.
2 more elements
A composition comprising:
- (a) an isobutylene based polymer or an isobutylene copolymer;
- and
- (b) a hydrocarbon resin having an aromatic H mole content between about 0% to about 10%;
- an olefin H mole content between about 0% to about 30%;
- and an aliphatic H content between about 70% to about 100%,
- wherein the hydrocarbon resin has a number average molecular weight between about 10 to about 1,000 g/mole, a weight average molecular weight between about 50 to about 5,000 g/mole, and a glass transition temperature between about 0° C. to about −80° C.
3 more elements
A method of making a hydrocarbon resin comprising the steps of:
- (a) providing a hydrocarbon reaction product comprising
- (i) at least one of trans-pentadiene-1,3, cyclopentene, cis-pentadiene, and mixtures thereof;
- (ii) a cyclic pentadiene component selected from the group consisting of:
- cyclopentadiene, cyclopentadiene dimer, cyclopentadiene trimer, cyclopentadiene-C4 codimer, cyclopentadiene-piperylene codimer, cyclopentadiene methylcyclopentadiene codimer, methylcyclopentadiene, methylcyclopentadiene dimer, methylcyclopentadiene-C4 codimer, methylcyclopentadiene-piperylene codimer, and mixtures thereof;
- and
- (iii) an aromatic component selected from the group consisting of styrene, ortho-methyl-styrene, meta-methyl-styrene, para-methyl-styrene, alpha-methyl-styrene, t-beta-methyl-styrene, indene, methyl indene, vinyl toluene, and combinations thereof,
- (b) quenching the reaction product with an isopropanol and water mixture to form a quenched reaction product;
- (c) separating an aqueous layer from the quenched reaction product;
- and
- (d) separating paraffins from the aqueous layer to produce the hydrocarbon resin,
- wherein the hydrocarbon resin has an aromatic H mole content between about 0% to about 10%;
- an olefin H mole content is between about 0% to about 30% and an aliphatic H content between about 70% to about 100%, a number average molecular weight between about 10 to about 1,000 g/mole, a weight average molecular weight between about 50 to about 5,000 g/mole, and a glass transition temperature between about 0° C. to about −80° C.
9 more elements
Dependencies are inferred from the claim text.