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1. US20150125697 - Saponification product of vinyl ester/ethylenically unsaturated carboxylic acid ester copolymer and process for producing the same

Office
États-Unis d'Amérique
Numéro de la demande 14117417
Date de la demande 01.05.2012
Numéro de publication 20150125697
Date de publication 07.05.2015
Numéro de délivrance 09150679
Date de délivrance 06.10.2015
Type de publication B2
CIB
C08F 216/06
CCHIMIE; MÉTALLURGIE
08COMPOSÉS MACROMOLÉCULAIRES ORGANIQUES; LEUR PRÉPARATION OU LEUR MISE EN UVRE CHIMIQUE; COMPOSITIONS À BASE DE COMPOSÉS MACROMOLÉCULAIRES
FCOMPOSÉS MACROMOLÉCULAIRES OBTENUS PAR DES RÉACTIONS FAISANT INTERVENIR UNIQUEMENT DES LIAISONS NON SATURÉES CARBONE-CARBONE
216Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un radical alcool, éther, aldéhyde, cétone, acétal ou cétal
02par un radical alcool
04Composés acycliques
06Alcool polyvinylique
C08J 3/12
CCHIMIE; MÉTALLURGIE
08COMPOSÉS MACROMOLÉCULAIRES ORGANIQUES; LEUR PRÉPARATION OU LEUR MISE EN UVRE CHIMIQUE; COMPOSITIONS À BASE DE COMPOSÉS MACROMOLÉCULAIRES
JMISE EN ŒUVRE; PROCÉDÉS GÉNÉRAUX POUR FORMER DES MÉLANGES; POST-TRAITEMENT NON COUVERT PAR LES SOUS-CLASSES C08B, C08C, C08F, C08G ou C08H149
3Procédés pour le traitement de substances macromoléculaires ou la formation de mélanges
12Pulvérisation ou granulation
CPC
C08F 216/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
216Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
02by an alcohol radical
04Acyclic compounds
06Polyvinyl alcohol ; ; Vinyl alcohol
C08F 8/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
8Chemical modification by after-treatment
12Hydrolysis
C08J 3/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
3Processes of treating or compounding macromolecular substances
12Powdering or granulating
C08J 2333/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2333Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
Y10T 428/2982
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
2982Particulate matter [e.g., sphere, flake, etc.]
Déposants Tomoaki Yamasaki
SUMITOMO SEIKA CHEMICALS CO., LTD.
Yuji Kinpara
Shigeki Hamamoto
Inventeurs Tomoaki Yamasaki
Yuji Kinpara
Shigeki Hamamoto
Mandataires Westerman, Hattori, Daniels & Adrian, LLP
Données relatives à la priorité 2011-110483 17.05.2011 JP
Titre
(EN) Saponification product of vinyl ester/ethylenically unsaturated carboxylic acid ester copolymer and process for producing the same
Abrégé
(EN)

The present invention provides a saponification product of a vinyl ester/ethylenically unsaturated carboxylic acid ester copolymer having superior tolerance of the aqueous thickening liquid against mechanical shear. More specifically, the present invention provides a saponification product of a vinyl ester/ethylenically unsaturated carboxylic acid ester copolymer having the superior tolerance, by polymerizing a mixture where the molar ratio of the vinyl ester/ethylenically unsaturated carboxylic acid ester is from 8/2 to 3/7, and saponifying the obtained copolymer in a mixed solvent where the mass composition ratio of an aqueous organic solvent/water mixture solvent is from 3/7 to 8/2.