JPH0122294B
Novel polysubstituted 2-keto-1,4-diazacycloalkanes are powerful stabilizers for materials subject to ultraviolet (UV) light degradation, particularly for polyolefins. The cyclic 2-keto compounds of this invention have (a) a fixed two-carbon bridge between the N1 and N4 atoms of the diaza ring, the r...
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| creator | PYONGU NAE SON JON TAAYUAN RAI |
| description | Novel polysubstituted 2-keto-1,4-diazacycloalkanes are powerful stabilizers for materials subject to ultraviolet (UV) light degradation, particularly for polyolefins. The cyclic 2-keto compounds of this invention have (a) a fixed two-carbon bridge between the N1 and N4 atoms of the diaza ring, the remaining portion of the ring having a variable length bridge of two or more carbon atoms, (b) an N-adjacent carbonyl in the fixed two-carbon bridge, and (c) at least one N4-adjacent carbon atom of the diaza ring is polysubstituted, that is, has two substituents which may be cyclizable. Compositions containing (a) the polysubstituted 2-keto-1,4-diazacycloalkanes of this invention, and (b) prior art polysubstituted 2-keto-1,4-diazacycloalkanes, exhibit excellent stability to UV light. |
| format | Patent |
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The cyclic 2-keto compounds of this invention have (a) a fixed two-carbon bridge between the N1 and N4 atoms of the diaza ring, the remaining portion of the ring having a variable length bridge of two or more carbon atoms, (b) an N-adjacent carbonyl in the fixed two-carbon bridge, and (c) at least one N4-adjacent carbon atom of the diaza ring is polysubstituted, that is, has two substituents which may be cyclizable. Compositions containing (a) the polysubstituted 2-keto-1,4-diazacycloalkanes of this invention, and (b) prior art polysubstituted 2-keto-1,4-diazacycloalkanes, exhibit excellent stability to UV light.</description><language>eng</language><subject>ADHESIVES ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; DYES ; HETEROCYCLIC COMPOUNDS ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; ORGANIC CHEMISTRY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAINTS ; POLISHES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</subject><creationdate>1989</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19890426&DB=EPODOC&CC=JP&NR=H0122294B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19890426&DB=EPODOC&CC=JP&NR=H0122294B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PYONGU NAE SON</creatorcontrib><creatorcontrib>JON TAAYUAN RAI</creatorcontrib><title>JPH0122294B</title><description>Novel polysubstituted 2-keto-1,4-diazacycloalkanes are powerful stabilizers for materials subject to ultraviolet (UV) light degradation, particularly for polyolefins. The cyclic 2-keto compounds of this invention have (a) a fixed two-carbon bridge between the N1 and N4 atoms of the diaza ring, the remaining portion of the ring having a variable length bridge of two or more carbon atoms, (b) an N-adjacent carbonyl in the fixed two-carbon bridge, and (c) at least one N4-adjacent carbon atom of the diaza ring is polysubstituted, that is, has two substituents which may be cyclizable. Compositions containing (a) the polysubstituted 2-keto-1,4-diazacycloalkanes of this invention, and (b) prior art polysubstituted 2-keto-1,4-diazacycloalkanes, exhibit excellent stability to UV light.</description><subject>ADHESIVES</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>DYES</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>ORGANIC CHEMISTRY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PAINTS</subject><subject>POLISHES</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1989</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOD2CvAwMDQyMrI0ceJhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFIOpyMjIlSBAB3gBww</recordid><startdate>19890426</startdate><enddate>19890426</enddate><creator>PYONGU NAE SON</creator><creator>JON TAAYUAN RAI</creator><scope>EVB</scope></search><sort><creationdate>19890426</creationdate><title>JPH0122294B</title><author>PYONGU NAE SON ; JON TAAYUAN RAI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0122294BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1989</creationdate><topic>ADHESIVES</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>DYES</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>ORGANIC CHEMISTRY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PAINTS</topic><topic>POLISHES</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</topic><toplevel>online_resources</toplevel><creatorcontrib>PYONGU NAE SON</creatorcontrib><creatorcontrib>JON TAAYUAN RAI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PYONGU NAE SON</au><au>JON TAAYUAN RAI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>JPH0122294B</title><date>1989-04-26</date><risdate>1989</risdate><abstract>Novel polysubstituted 2-keto-1,4-diazacycloalkanes are powerful stabilizers for materials subject to ultraviolet (UV) light degradation, particularly for polyolefins. The cyclic 2-keto compounds of this invention have (a) a fixed two-carbon bridge between the N1 and N4 atoms of the diaza ring, the remaining portion of the ring having a variable length bridge of two or more carbon atoms, (b) an N-adjacent carbonyl in the fixed two-carbon bridge, and (c) at least one N4-adjacent carbon atom of the diaza ring is polysubstituted, that is, has two substituents which may be cyclizable. Compositions containing (a) the polysubstituted 2-keto-1,4-diazacycloalkanes of this invention, and (b) prior art polysubstituted 2-keto-1,4-diazacycloalkanes, exhibit excellent stability to UV light.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES HETEROCYCLIC COMPOUNDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | JPH0122294B |
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