Polymerizable UV light stabilizers from isocyanatoalkyl esters o

Details Polymerizable UV light stabilizers from isocyanatoalkyl esters o Polymerizable UV light stabilizers from isocyanatoalkyl esters o

1983-04-14

1985-03-12

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524 91, 524 99, 524103, 524199, 525374, 525375, 525384, 525386, 526301, 548259, 560 24, 560 25, 560 27, 560 32, 560 33, 560132, 560157, 560158, 560163, C07C12504, C07D25308, C08F27902, C08F24600, C08F23606, C08F22606, C08F22222, C08K 516, C08K 521, C08K 534

Patent

active

045046280

ABSTRACT:
An addition polymerizable UV stabilizer is prepared by reacting an isocyanatoalkyl ester of an addition polymerizable carboxylic acid (such as 2-isocyanatoethyl methacrylate) with an UV stabilization functionality bearing an active hydrogen moiety which is reactive with the isocyanate (such as 2-hydroxy-4-(2-hydroxyethoxy)benzophenone).

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Daniel R. Olson et al, "UV Screen Progenitors, Thermally Labile Urethane Derivatives of Hydroxy Benzutriazoles and Hydroxybenzophenones", J. Applied Polymer Science, vol. 22, 2165-2172 (1978).
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