US PATENT SUBCLASS 522 / 8
.~.~.~.~ At least two specified rate-affecting materials containing keto group not part of a ring; or contains a nonspecified photoinitiator or photosensitizer and specified ketone containing material wherein the keto group is not part of a ring

Current as of: June, 1999
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522 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ COMPOSITIONS TO BE POLYMERIZED BY WAVE ENERGY WHEREIN SAID COMPOSITION CONTAINS A RATE-AFFECTING MATERIAL; OR COMPOSITIONS TO BE MODIFIED BY WAVE ENERGY WHEREIN SAID COMPOSITION CONTAINS A RATE-AFFECTING MATERIAL; OR PROCESSES OF PREPARING OR TREATING A SOLID POLYMER UTILIZING WAVE ENERGY {27}
6  DF  .~.~ Compositions to be polymerized or modified by wave energy wherein said composition contains at least one specified rate-affecting material; or processes of preparing or treating a solid polymer utilizing wave energy in the presence of at least one specified rate-affecting material; e.g., nitrogen containing photosensitizer, oxygen containing photoinitiator, etc. wave energy in order to prepare a cellular product {14}
7  DF  .~.~.~ Contains two or more rate-affecting materials, at least one of which is specified {10}
8.~.~.~.~ At least two specified rate-affecting materials containing keto group not part of a ring; or contains a nonspecified photoinitiator or photosensitizer and specified ketone containing material wherein the keto group is not part of a ring {2}
9  DF  .~.~.~.~.~> With a heterocyclic specified rate-affecting material
10  DF  .~.~.~.~.~> With a tertiary amine specified rate-affecting material

DEFINITION

Classification: 522/8

At least two specified rate-affecting material containing keto group not part of a ring; or contains nonspecified photoinitiator or photosensitizer and a specified ketone containing material wherein the keto group is not part of a ring:

(under subclass 7) Subject matter wherein either (a) at least two rate-affecting materials are specified and each of which contains at least one organic keto group not part of a ring system, or (b) the combination of one specified rate-affecting material containing at least one organic keto group not part of a ring system plus a rate-affecting material designated as either a "photosensitizer" or "photoinitiator".

(1) Note. Examples of combinations of rate-affecting materials proper for this subclass include

(a) [figure] [caption][supscrpt]+ [end supscrpt]photosensitizer

(b)

acyloin photoinitiator + benzophenone

(c)

diaminobenophenone photosensitizer+ benzophenone

(d) a mixture of benzophenone and Michler's ketone as the photoinitiator

(2) Note. A material having a keto group as part of a ring may still be proper for this subclass if in fact an additional keto group is present which is not part of a ring, e.g., [figure] [caption]etc.

(3) Note. Ring as used in this subclass includes heterocyclic rings, carbocyclic, or any other ring system.

(4) Note. See Class 520, the Glossary, for a definition of the term "ketone".

SEE OR SEARCH THIS CLASS, SUBCLASS:

68, for a ketone containing a C=O group wherein the C of the C=O is part of a carbocyclic ring and there are no other keto moieties.