Section 721.9492 - Certain polymers of styrene, cyclohexyl methacrylate and substituted methacrylate(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substances identified as 2-propenoic acid, 2-methyl-, cyclohexyl ester, polymer with ethenylbenzene and 2-oxiranylmethyl 2-methyl-2-propenoate, tert-Bu 2-ethylhexaneperoxoate-initiated (PMN P-97-143; CAS No. 1078715-90-8) and as 2-propenoic acid, 2-methyl-, cyclohexyl ester, polymer with ethenylbenzene, 4-hydroxybutyl 2-propenoate and 2-oxiranylmethyl 2-methyl-2-propenoate, tert-Bu 2-ethylhexaneperoxoate-initiated (PMN P-97-144; CAS No. 1078715-62-4) are subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section.(2) The significant new uses are: (i)Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(f) .(b)Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph. (1)Recordkeeping. Recordkeeping requirements as specified in § 721.125 (a) and (i) are applicable to manufacturers, importers, and processors of these substances.(2)Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section.63 FR 3437, Jan. 22, 1998, as amended at 79 FR 34638, June 18, 2014