ES8600336A1 - Procedimiento para preparar poli (vinilacetales) - Google Patents
Procedimiento para preparar poli (vinilacetales)Info
- Publication number
- ES8600336A1 ES8600336A1 ES535535A ES535535A ES8600336A1 ES 8600336 A1 ES8600336 A1 ES 8600336A1 ES 535535 A ES535535 A ES 535535A ES 535535 A ES535535 A ES 535535A ES 8600336 A1 ES8600336 A1 ES 8600336A1
- Authority
- ES
- Spain
- Prior art keywords
- vinyl acetals
- improved process
- poly
- producing poly
- vinyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/28—Condensation with aldehydes or ketones
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PROCEDIMIENTO PARA LA OBTENCION DE POLI(VINILACETALES).CONSISTE EN LA REACCION DE POLI(ALCOHOL VINILICO) CON UN EXCESO ESTEQUIOMETRICO DE, AL MENOS, UN ALDEHIDO QUE CONTIENE DE 1 A 6 ATOMOS DE CARBONO, PREFERENTEMENTE ALDEHIDO ALIFATICO LINEAL. LA REACCION SE LLEVA A CABO EN FASE LIQUIDA A UNA TEMPERATURA ENTRE 60JC Y 150JC Y A UNA PRESION ENTRE 1 Y 15 ATMOSFERAS; EN LA REACCION SE PRODUCE POLI(VINILACETAL) Y AGUA; PARA QUE SE COMPLETE LA REACCION SE ELIMINA EL AGUA MEDIANTE LA SEPARACION EN FORMA DE UN AZEOTROFO ALDEHIDO/AGUA, POR DESTILACION A UNA TEMPERATURA QUE DEPENDE DEL ALDEHIDO EMPLEADO; EL EXCESO DE ALDEHIDO SE RECICLA PARA SER RECUPERADO.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52834383A | 1983-08-31 | 1983-08-31 | |
US06/634,051 US4539369A (en) | 1983-08-31 | 1984-07-30 | Process for producing poly (vinyl acetals) |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8600336A1 true ES8600336A1 (es) | 1985-10-01 |
ES535535A0 ES535535A0 (es) | 1985-10-01 |
Family
ID=27062697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES535535A Granted ES535535A0 (es) | 1983-08-31 | 1984-08-30 | Procedimiento para preparar poli (vinilacetales) |
Country Status (3)
Country | Link |
---|---|
US (1) | US4539369A (es) |
EP (1) | EP0140531A2 (es) |
ES (1) | ES535535A0 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5100957A (en) * | 1986-12-26 | 1992-03-31 | Tosoh Corporation | Protective dust cover for photomask or reticle |
US5284468A (en) * | 1991-08-19 | 1994-02-08 | M-Pact Worldwide Management Corporation | Orthopedic splinting article |
NO922808L (no) * | 1992-07-16 | 1994-01-17 | Tore Ledaal | Maksimalt miljoevennlige kjemiske reaksjoner som fremgangsmaate til fremstilling av nye miljoevernvennlige materialtyper og spesialprodukter |
ES2687431T3 (es) | 2004-08-04 | 2018-10-25 | Sekisui Chemical Co., Ltd. | Proceso para producir resina acetal polivinilo |
CN111534164B (zh) * | 2020-06-20 | 2022-02-08 | 南通百川新材料有限公司 | 一种聚乙烯醇缩醛树脂及其制备方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2143228A (en) * | 1936-09-08 | 1939-01-10 | Ig Farbenindustrie Ag | Process of preparing condensation products |
-
1984
- 1984-07-30 US US06/634,051 patent/US4539369A/en not_active Expired - Fee Related
- 1984-08-30 EP EP84305915A patent/EP0140531A2/en not_active Withdrawn
- 1984-08-30 ES ES535535A patent/ES535535A0/es active Granted
Also Published As
Publication number | Publication date |
---|---|
EP0140531A2 (en) | 1985-05-08 |
US4539369A (en) | 1985-09-03 |
ES535535A0 (es) | 1985-10-01 |
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