Water-based neoprene contact cement

C - Chemistry – Metallurgy – 09 – J

Patent

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Details

400/1815, 400/51

C09J 147/00 (2006.01) C08L 11/02 (2006.01) C09J 111/02 (2006.01)

Patent

CA 1298006

ABSTRACT OF THE INVENTION 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 poly- electrolyte 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 C1-C18 mono-alcohol, said ionizable resinous mixture having a softening point not substantially above about 125°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.

543896

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