Water-based neoprene contact cement comprising ionizable resin mixture in a copolymer of chloroprene and methacrylic acid
AssigneeBeecham Home Improvement Products Inc.
InventorWei T. Chang
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Abstract
An aqueous contact cement, which comprises a dispersion in water of a chloroprene copolymer of 2-chloro-1,3-butadiene and methacrylic acid and a resinous polyelectrolyte of an ionizable resinous mixture which is ionized with a volatile ionizing atent, and ionizable resinous mixture being the reaction product of a rosin, a carboxylic acid, and a C.sub.1 -C.sub.18 mono-alcohol, said ionizable resinous mixture having a softening point not substantially above about 125.degree. C. and an acid number of between about 30 and 150, said reaction product comprising the carbocyclic nucleus of rosin having at least one carboxylic acid group and at least one carboxylic acid ester group of said mono-alcohol.
Claims12
An aqueous contact cement, which comprises a dispersion in water of a chloroprene copolymer of 2-chloro-1,3-butadiene and methacrylic acid and a resinous polyelectrolyte of an ionizable resinous mixture which is ionized with a volatile ionizing agent, said ionizable resinous mixture being the reaction product of a rosin, a carboxylic acid, and a C.sub.1 -C.sub.18 mono-alcohol, said ionizable resinous mixture having a softening point not substantially above about 125.degree. C. and an acid number of between about 30 and 150, said reaction product comprising the carbocyclic nucleus of rosin having at least one carboxylic acid group and at least one carboxylic acid ester group of said mono-alcohol.
Dependencies are inferred from the claim text.