METHOD TO PRODUCE STIMULI SENSITIVE UV ABSORBING POLYMERS
Eco-friendly aqueous synthesis of substantive, UV-absorbing, cationic polymers with 'inverse temperature dependent solubility' are described in the present invention. These polymers are water-soluble at ambient temperature and water-resistant at temperature of human body as well as in the...
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| creator | KURAKULA THULASIRAMREDDY, Prabhu Charan KOSHTI, Nirmal |
| description | Eco-friendly aqueous synthesis of substantive, UV-absorbing, cationic polymers with 'inverse temperature dependent solubility' are described in the present invention. These polymers are water-soluble at ambient temperature and water-resistant at temperature of human body as well as in the presence of electrolytes. This property makes these polymers useful for personal care products that are designed for protecting skin and hair from damages of UV radiation.The invention relates to aqueous synthesis of polymers of Formula I wherein, ArCO is an UV absorbing moiety selected from 2-cyano-3,3-diphenyl acryloyl, and p-methoxy cinnamoyl, R1 is selected from H and C1-C3 alkyl group, and R2 is selected from C1-C3 alkyl group, m and n are integers and a ratio of m to n is 40:5 to 40:1. |
| format | Patent |
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These polymers are water-soluble at ambient temperature and water-resistant at temperature of human body as well as in the presence of electrolytes. This property makes these polymers useful for personal care products that are designed for protecting skin and hair from damages of UV radiation.The invention relates to aqueous synthesis of polymers of Formula I wherein, ArCO is an UV absorbing moiety selected from 2-cyano-3,3-diphenyl acryloyl, and p-methoxy cinnamoyl, R1 is selected from H and C1-C3 alkyl group, and R2 is selected from C1-C3 alkyl group, m and n are integers and a ratio of m to n is 40:5 to 40:1.</description><language>eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; HUMAN NECESSITIES ; HYGIENE ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2021</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=20210930&DB=EPODOC&CC=US&NR=2021301052A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210930&DB=EPODOC&CC=US&NR=2021301052A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KURAKULA THULASIRAMREDDY, Prabhu Charan</creatorcontrib><creatorcontrib>KOSHTI, Nirmal</creatorcontrib><title>METHOD TO PRODUCE STIMULI SENSITIVE UV ABSORBING POLYMERS</title><description>Eco-friendly aqueous synthesis of substantive, UV-absorbing, cationic polymers with 'inverse temperature dependent solubility' are described in the present invention. 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These polymers are water-soluble at ambient temperature and water-resistant at temperature of human body as well as in the presence of electrolytes. This property makes these polymers useful for personal care products that are designed for protecting skin and hair from damages of UV radiation.The invention relates to aqueous synthesis of polymers of Formula I wherein, ArCO is an UV absorbing moiety selected from 2-cyano-3,3-diphenyl acryloyl, and p-methoxy cinnamoyl, R1 is selected from H and C1-C3 alkyl group, and R2 is selected from C1-C3 alkyl group, m and n are integers and a ratio of m to n is 40:5 to 40:1.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON HUMAN NECESSITIES HYGIENE MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | METHOD TO PRODUCE STIMULI SENSITIVE UV ABSORBING POLYMERS |
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