Appeal No. 1997-0433
Application 08/230,582
polymerizing a monomer mixture in an oil soluble diluent and in the presence of a polymerization
initiator to form a polymerization intermediate, said monomer mixture comprising:
from about 5 parts by weight to about 70 parts by weight of a first (meth)acrylate
monomer having the structural formula:
R1
?
CH2=C
?
C=O
?
O
?
R2
wherein:
each R1 is independently H or CH3; and
each R2 is independently selected from (C16-C24)alkyl;
from about 5 parts by weight to about 85 parts by weight of a second (meth)acrylate
monomer having the structural formula:
R3
?
CH2=C
?
C=O
?
O
?
R4
wherein:
each R3 is independently H or CH3; and
each R4 is independently selected from (C7-C15)alkyl; and
from about 5 parts by weight to about 50 parts by weight of a styrenic monomer; and
polymerizing from about 2 parts by weight to about 20 parts by weight additional (meth)acrylate
monomer per 100 parts by weight of the combined first and second (meth)acrylate monomers of the
monomer mixture, said additional (meth)acrylate monomer consisting essentially of the first
(meth)acrylate monomer, the second (meth)acrylate monomer or a mixture thereof, in the presence of
the polymerization intermediate, provided that the combined monomers of the monomer mixture and the
additional monomer comprise from about 5 weight percent to about 70 weight percent of the first
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Last modified: November 3, 2007