Ethylenically unsaturated blocked aromatic diisocyanates and pol

Details Ethylenically unsaturated blocked aromatic diisocyanates and pol Ethylenically unsaturated blocked aromatic diisocyanates and pol

1976-10-22

1978-07-18

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296H, 260 296ME, 260 296MN, 260 296R, 260 296TA, 526261, 526301, 526259, 526258, C08L 3502

Patent

active

041014910

ABSTRACT:
Ethylenically unsaturated blocked aromatic diisocyanates are prepared which readily polymerize to form homopolymers and interpolymers with copolymerizable vinylidene monomers. Polymers can be prepared via emulsion polymerization, and exhibit excellent stability to hydrolysis when stored in latex form. The polymers cure at temperatures as low as 80.degree. C., and under acidic, neutral, or basic pH conditions. Homopolymers and interpolymers of the defined diisocyanates are useful as adhesives, and interpolymers of the ethylenically unsaturated blocked aromatic diisocyanates with acrylate monomers are particularly useful as binders for nonwoven fibers.

REFERENCES:
patent: 2882260 (1959-04-01), Bartl et al.
patent: 3721645 (1973-03-01), Zemlin
patent: 3897381 (1975-07-01), Tugukuni et al.
patent: 3914335 (1975-10-01), Tugukuni et al.

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