Ultraviolet absorbing copolymers

Details Ultraviolet absorbing copolymers Ultraviolet absorbing copolymers

1980-03-03

1982-01-12

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

428522, 525219, C08F21602, C08F21610, C08F22012

Patent

active

043106501

ABSTRACT:
Photostable and weather stable absorping copolymers have been prepared from acrylic esters such as methyl methacrylate containing 0.1 to 5% of an 2-hydroxy-allyl benzophenone, preferably the 4,4' dimethoxy derivative thereof. The pendant benzophenone chromophores protect the acrylic backbone and when photoexcited do not degrade the ester side chain, nor abstract hydrogen from the backbone.

REFERENCES:
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patent: 3049503 (1962-08-01), Milionis et al.
patent: 3107199 (1963-10-01), Tocker
patent: 3113907 (1963-10-01), Tocker
patent: 3133042 (1964-05-01), Tocker
patent: 3173893 (1965-03-01), Fertig et al.
patent: 3215665 (1965-11-01), Sharetts et al.
patent: 3320116 (1967-05-01), Tocker
patent: 3341493 (1967-09-01), Goldberg et al.
patent: 3366668 (1968-01-01), Strobel et al.

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