US PATENT SUBCLASS 558 / 260
.~ Carbonate esters (i.e, compounds having the -O-C(=O)O- group bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)

Current as of: June, 1999
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558 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
260.~ Carbonate esters (i.e, compounds having the -O-C(=O)O- group bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {8}
261  DF  .~.~> With preservative or stabilizer
262  DF  .~.~> Nitrogen attached directly to the -O-C(=O)O- group by nonionic bonding (e.g., oxime carbonates, urea carbonates, etc.)
263  DF  .~.~> Oxygen bonded directly to the -O-C(=O)O- group by nonionic bonding (e.g., monoperoxycarbonates, etc.) {1}
265  DF  .~.~> Plural -O-C(=O)O- groups attached indirectly to each other by nonionic bonding {2}
270  DF  .~.~> Benzene ring bonded directly to the -O-C(=O)O- group {4}
275  DF  .~.~> Benzene ring attached indirectly to the -O-C(=O)O- group by nonionic bonding
276  DF  .~.~> Nitrogen or chalcogen attached indirectly to the -O-C(=O)O- group by acyclic nonionic bonding
277  DF  .~.~> Two identical or diverse alkyl groups bonded directly to the -O-C(=O)O- group (e.g., dimethyl carbonate, methyl ethyl carbonate, etc.)

DEFINITION

Classification: 558/260

(under subclass 1) Compounds under Class 532, ... which contain the -O-C(=O)O- group bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon.

(1) Note. Examples of compounds provided for herein are: [figure] [figure] [figure]