Alpha methyl styrene and vinyl toluene and processes of preparation
AssigneeHercules Incorporated
InventorsClarence Clayton Campbell, Dean Almon Finfinger
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Abstract
The specification discloses resinous compositions comprising copolymers of alpha methyl styrene and vinyl toluene, 95 percent by weight of said copolymers having molecular chain lengths less than 100 Angstroms. The compositions are characterized by softening points in the range of about 10 to 98.degree. C. and good solubility in paraffin wax. Processes are disclosed for preparing said compositions by copolymerizing mixtures of monomers of vinyl toluene and alpha methyl styrene in a weight ratio in the range of 2.5:1 to 4.5:1 in the presence of an acid clay catalyst.
Claims4
A resinous composition consisting essentially of copolymers of alpha methyl styrene and vinyl toluene wherein the weight ratio of vinyl toluene to alpha methyl styrene is in the range of 2.5:1 to 4.5:1, said composition being characterized by a softening point (Ring and Ball) in the range of about 10.degree. C. to 90.degree. C. and being derived by use of an acid clay catalyst.
A resinous composition consisting essentially of copolymers of alpha methyl styrene and vinyl toluene wherein the weight ratio of vinyl toluene to alpha methyl styrene is in the range of 2.5:1 to 4.5:1, said composition being characterized by a softening point (Ring and Ball) in the range of about 25.5.degree. C. to about 89.degree. C. and being derived by use of an acid clay catalyst.
Dependencies are inferred from the claim text.