PROCEDE POUR L'ENDUCTION PELLICULAIRE DE COMPOSITIONS PHARMACEUTIQUES AVEC DES DISPERSIONS DE POLYMERES
PURPOSE: To advantageously carry out film coating of a gastric acid resistant agent and to simplify cleaning of an apparatus, by suspending a pigment in a coating solution composed of an aqueous polymer dispersion using a specific film-forming material and dissolving a specific amount of xanthan gum...
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| creator | JANOS TOMBOR DENES BEZZEGH PAL FEKETE MARIA KIRALY NEE IGNACZ |
| description | PURPOSE: To advantageously carry out film coating of a gastric acid resistant agent and to simplify cleaning of an apparatus, by suspending a pigment in a coating solution composed of an aqueous polymer dispersion using a specific film-forming material and dissolving a specific amount of xanthan gum in a next step. CONSTITUTION: An agent is coated with a film through a step for suspending a pigment (e.g. talc or titanium dioxide) in a coating solution constituted of an aqueous polymer dispersion using an aqueous latex dispersion composed of a copolymer of ethyl acrylate, methacrylic acid or ethyl acrylate and methyl methacrylate as a film-forming material and a step for dissolving 0.05-0.5% of xanthan gum based on the total amount in the coating solution. Preferably, a mixture of ethyl acrylate and methacrylic acid in a ratio of 1:1, having about 250,000 (relative) molecular weight is used as the polymer dispersion and 0.1-0.2% of xanthan gum is added based on the total of the coating solution. |
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CONSTITUTION: An agent is coated with a film through a step for suspending a pigment (e.g. talc or titanium dioxide) in a coating solution constituted of an aqueous polymer dispersion using an aqueous latex dispersion composed of a copolymer of ethyl acrylate, methacrylic acid or ethyl acrylate and methyl methacrylate as a film-forming material and a step for dissolving 0.05-0.5% of xanthan gum based on the total amount in the coating solution. Preferably, a mixture of ethyl acrylate and methacrylic acid in a ratio of 1:1, having about 250,000 (relative) molecular weight is used as the polymer dispersion and 0.1-0.2% of xanthan gum is added based on the total of the coating solution.</description><edition>5</edition><language>fre</language><subject>ADHESIVES ; CHEMICAL PAINT OR INK REMOVERS ; CHEMISTRY ; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; CORRECTING FLUIDS ; DYES ; FILLING PASTES ; HUMAN NECESSITIES ; HYGIENE ; INKS ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAINTS ; PASTES OR SOLIDS FOR COLOURING OR PRINTING ; POLISHES ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; USE OF MATERIALS THEREFOR ; WOODSTAINS</subject><creationdate>1990</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=19901207&DB=EPODOC&CC=FR&NR=2633517B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19901207&DB=EPODOC&CC=FR&NR=2633517B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JANOS TOMBOR</creatorcontrib><creatorcontrib>DENES BEZZEGH</creatorcontrib><creatorcontrib>PAL FEKETE</creatorcontrib><creatorcontrib>MARIA KIRALY NEE IGNACZ</creatorcontrib><title>PROCEDE POUR L'ENDUCTION PELLICULAIRE DE COMPOSITIONS PHARMACEUTIQUES AVEC DES DISPERSIONS DE POLYMERES</title><description>PURPOSE: To advantageously carry out film coating of a gastric acid resistant agent and to simplify cleaning of an apparatus, by suspending a pigment in a coating solution composed of an aqueous polymer dispersion using a specific film-forming material and dissolving a specific amount of xanthan gum in a next step. CONSTITUTION: An agent is coated with a film through a step for suspending a pigment (e.g. talc or titanium dioxide) in a coating solution constituted of an aqueous polymer dispersion using an aqueous latex dispersion composed of a copolymer of ethyl acrylate, methacrylic acid or ethyl acrylate and methyl methacrylate as a film-forming material and a step for dissolving 0.05-0.5% of xanthan gum based on the total amount in the coating solution. 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CONSTITUTION: An agent is coated with a film through a step for suspending a pigment (e.g. talc or titanium dioxide) in a coating solution constituted of an aqueous polymer dispersion using an aqueous latex dispersion composed of a copolymer of ethyl acrylate, methacrylic acid or ethyl acrylate and methyl methacrylate as a film-forming material and a step for dissolving 0.05-0.5% of xanthan gum based on the total amount in the coating solution. Preferably, a mixture of ethyl acrylate and methacrylic acid in a ratio of 1:1, having about 250,000 (relative) molecular weight is used as the polymer dispersion and 0.1-0.2% of xanthan gum is added based on the total of the coating solution.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES HUMAN NECESSITIES HYGIENE INKS MEDICAL OR VETERINARY SCIENCE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS |
| title | PROCEDE POUR L'ENDUCTION PELLICULAIRE DE COMPOSITIONS PHARMACEUTIQUES AVEC DES DISPERSIONS DE POLYMERES |
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