GLYCOLIC ACID POLYMER
The invention pertains to an improved branched glycolic acid polymer being obtained from polycondensation reaction of a monomer mixture comprising:(i) glycolic acid (GA);(ii) optionally, at least one hydroxyacid having only one hydroxyl group and only one carboxylic acid group different from GA [hyd...
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| creator | Vanderveken, Yves Jeol, Stéphane Benson, Bryan Singletary, Nancy J Touraud, Franck |
| description | The invention pertains to an improved branched glycolic acid polymer being obtained from polycondensation reaction of a monomer mixture comprising:(i) glycolic acid (GA);(ii) optionally, at least one hydroxyacid having only one hydroxyl group and only one carboxylic acid group different from GA [hydroxyacid (A)], wherein the molar amount of hydroxyacid (A) is of at most 5% moles with respect to the sum of moles of GA and hydroxyacid (A);(iii) at least one polyol comprising at least three hydroxyl groups and being free from carboxylic acid group [polyol (H)];(iv) at least one alcohol comprising one or two hydroxyl groups and being free from carboxylic acid group [alcohol (AO)];(v) optionally at least one carboxylic acid comprising one carboxylic acid group and being free from hydroxyl group [monoacid (C)]; and(vi) optionally at least one polyacid comprising at least two carboxylic acid groups and being free from hydroxyl groups [polyacid (O)], wherein the amount of polyacid (O) is such that the number of carboxylic acid groups thereof is comprised between 0.025 and 0.900% with respect to the overall number of hydroxyl groups of glycolid acid and of the hydroxyacid (A), if present. |
| format | Patent |
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and(vi) optionally at least one polyacid comprising at least two carboxylic acid groups and being free from hydroxyl groups [polyacid (O)], wherein the amount of polyacid (O) is such that the number of carboxylic acid groups thereof is comprised between 0.025 and 0.900% with respect to the overall number of hydroxyl groups of glycolid acid and of the hydroxyacid (A), if present.</description><language>eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING</subject><creationdate>2022</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=20221201&DB=EPODOC&CC=US&NR=2022380525A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221201&DB=EPODOC&CC=US&NR=2022380525A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Vanderveken, Yves</creatorcontrib><creatorcontrib>Jeol, Stéphane</creatorcontrib><creatorcontrib>Benson, Bryan</creatorcontrib><creatorcontrib>Singletary, Nancy J</creatorcontrib><creatorcontrib>Touraud, Franck</creatorcontrib><title>GLYCOLIC ACID POLYMER</title><description>The invention pertains to an improved branched glycolic acid polymer being obtained from polycondensation reaction of a monomer mixture comprising:(i) glycolic acid (GA);(ii) optionally, at least one hydroxyacid having only one hydroxyl group and only one carboxylic acid group different from GA [hydroxyacid (A)], wherein the molar amount of hydroxyacid (A) is of at most 5% moles with respect to the sum of moles of GA and hydroxyacid (A);(iii) at least one polyol comprising at least three hydroxyl groups and being free from carboxylic acid group [polyol (H)];(iv) at least one alcohol comprising one or two hydroxyl groups and being free from carboxylic acid group [alcohol (AO)];(v) optionally at least one carboxylic acid comprising one carboxylic acid group and being free from hydroxyl group [monoacid (C)]; 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and(vi) optionally at least one polyacid comprising at least two carboxylic acid groups and being free from hydroxyl groups [polyacid (O)], wherein the amount of polyacid (O) is such that the number of carboxylic acid groups thereof is comprised between 0.025 and 0.900% with respect to the overall number of hydroxyl groups of glycolid acid and of the hydroxyacid (A), if present.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING |
| title | GLYCOLIC ACID POLYMER |
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