Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
Inventor
active
[Indole]naphthopyrans, preparation, compositions...
[Pyrrole]naphthopyranes, their preparation, and...
Benzo-, naphtho- and phenanthrochromene substituted by...
Benzopyrans annelated in C7-C8 with an aromatic heterocycle...
Naphthopyran derivatives, compositions and (co) polymer...
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Profile ID: LFUS-PAI-P-2065514