Age resistant resin compositions and admixtures useful as adhesives
First Claim
1. An age resistant tackifying resin which comprises a composition having a softening point in the range of 0°
- C. to about 140°
C. comprising (1) about 40 to about 80 weight percent units derived from aliphatic diolefins selected from piperylene, 1,3-butadiene and 2,3-dimethyl-1,3-butadiene, (2) about 60 to about 20 weight percent units derived from aliphatic monoolefins selected from isobutylene, 2-methyl-1-butene, 2-methyl-2-butene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, 2-methyl-1-pentene, and 2-methyl-2-pentene, where the mole ratio of diolefin to monoolefin is about 0.7/1 to about 2;
1, (3) about 0 to about 40 weight percent units derived from at least one of dicyclopentadiene and a vinyl aromatic compound selected from styrene and α
-methyl styrene and (4) about 0.2 to about 2 weight percent units derived from at least one selected amine type compound, where said amine compounds are selected from an amine compound having the structure ##STR9##where R14 is selected from hydrogen, methyl, ethyl and methoxy radicals, where X2 is selected from the groups consisting of --NH, --N--CH(CH3)--CH2 --CH2 --CH3, and oxygen and where Y2 is selected from the group consisting of --COCH=CH2, ##STR10##
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Abstract
Age resistant resin which comprises a composition selected from (A) a composition having a softening point in the range of 0° C to about 140° C comprising units derived from selected aliphatic diolefins and aliphatic monoolefins, which can be modified with units derived from dicyclopentadiene, and certain vinyl aromatic compounds, and selected phenol or amine type compounds and (B) a composition having a softening point in the range of about 60° C to about 110° C comprising units derived from monoolefins and vinyl aromatic compounds, which can be modified with aliphatic diolefins, and selected phenol and amine type compounds. Such age resistant resins have particular utility when admixed with various rubbery materials and thermoplastics to create pressure sensitive adhesives and hot melt adhesives.
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Citations
6 Claims
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1. An age resistant tackifying resin which comprises a composition having a softening point in the range of 0°
- C. to about 140°
C. comprising (1) about 40 to about 80 weight percent units derived from aliphatic diolefins selected from piperylene, 1,3-butadiene and 2,3-dimethyl-1,3-butadiene, (2) about 60 to about 20 weight percent units derived from aliphatic monoolefins selected from isobutylene, 2-methyl-1-butene, 2-methyl-2-butene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, 2-methyl-1-pentene, and 2-methyl-2-pentene, where the mole ratio of diolefin to monoolefin is about 0.7/1 to about 2;
1, (3) about 0 to about 40 weight percent units derived from at least one of dicyclopentadiene and a vinyl aromatic compound selected from styrene and α
-methyl styrene and (4) about 0.2 to about 2 weight percent units derived from at least one selected amine type compound, where said amine compounds are selected from an amine compound having the structure ##STR9##where R14 is selected from hydrogen, methyl, ethyl and methoxy radicals, where X2 is selected from the groups consisting of --NH, --N--CH(CH3)--CH2 --CH2 --CH3, and oxygen and where Y2 is selected from the group consisting of --COCH=CH2, ##STR10## - View Dependent Claims (2, 3, 4, 5, 6)
- C. to about 140°
Specification
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- Resources
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Current AssigneeGoodyear Tire & Rubber Company
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Original AssigneeGoodyear Tire & Rubber Company
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InventorsBullard, Herbert L., Osborn, Robert A.
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Primary Examiner(s)Henderson, Christopher A.
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Application NumberUS05/511,412Time in Patent Office881 DaysField of Search260/47 UA, 260/47 UP, 260/78 UA, 526/263, 526/304, 526/307US Class Current526/237CPC Class CodesC08F 210/00 Copolymers of unsaturated a...C08L 19/006 Rubber characterised by fun...
