ES319962A1 - Process for the preparation of macromolecular formaldehyde polymers - Google Patents
Process for the preparation of macromolecular formaldehyde polymersInfo
- Publication number
- ES319962A1 ES319962A1 ES0319962A ES319962A ES319962A1 ES 319962 A1 ES319962 A1 ES 319962A1 ES 0319962 A ES0319962 A ES 0319962A ES 319962 A ES319962 A ES 319962A ES 319962 A1 ES319962 A1 ES 319962A1
- Authority
- ES
- Spain
- Prior art keywords
- water
- polymerization
- preparation
- inert medium
- catalyst
- 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
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/06—Catalysts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/08—Polymerisation of formaldehyde
Abstract
Formaldehyde containing more than 0.5% of water is polymerized with a liquid inert medium having dissolved therein an organic titanium catalyst. The catalyst may be, amongst many others, titanium oleate, stearate or phenolate or tetrabutyl titanate while the inert medium may be heptene, toluene, acetone, tetrahydrofuran or methylene chloride. The formaldehyde starting material preferably contains 1 to 7% water or more preferably 1.5 to 5% water. The polymerization may take place at - 40 DEG to +60 DEG C., and the reactants may be supplied continuously or intermittently, as may also be the case for the polymerization. The products may be esterified or etherified to block the end groups. Up to 10% of comonomers, e.g. isobutene, dioxolone, vinyl ethers, vinyl-nitrogen compounds, cyclic ethers, aldehydes and ketones may also be present.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6413656A NL6413656A (en) | 1964-11-25 | 1964-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES319962A1 true ES319962A1 (en) | 1966-04-01 |
Family
ID=19791500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0319962A Expired ES319962A1 (en) | 1964-11-25 | 1965-11-24 | Process for the preparation of macromolecular formaldehyde polymers |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4830152B1 (en) |
| AT (1) | AT269476B (en) |
| BE (1) | BE672791A (en) |
| CH (1) | CH456154A (en) |
| DE (1) | DE1645453A1 (en) |
| ES (1) | ES319962A1 (en) |
| FR (1) | FR1462524A (en) |
| GB (1) | GB1113506A (en) |
| NL (2) | NL6413656A (en) |
| NO (1) | NO125394B (en) |
| SE (1) | SE338162B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0327614U (en) * | 1989-07-21 | 1991-03-20 | ||
| JP3026900U (en) * | 1996-01-17 | 1996-07-23 | 英高 村田 | Integrally molded fan |
| CN110885415B (en) * | 2019-11-29 | 2023-01-13 | 万华化学集团股份有限公司 | Antistatic and antibacterial polyacetal resin and preparation method thereof |
-
0
- NL NL135962D patent/NL135962C/xx active
-
1964
- 1964-11-25 NL NL6413656A patent/NL6413656A/xx unknown
-
1965
- 1965-11-22 GB GB4953765A patent/GB1113506A/en not_active Expired
- 1965-11-23 NO NO16060565A patent/NO125394B/no unknown
- 1965-11-24 AT AT1058465A patent/AT269476B/en active
- 1965-11-24 ES ES0319962A patent/ES319962A1/en not_active Expired
- 1965-11-24 BE BE672791D patent/BE672791A/xx unknown
- 1965-11-24 CH CH1617265A patent/CH456154A/en unknown
- 1965-11-24 DE DE19651645453 patent/DE1645453A1/en active Pending
- 1965-11-25 FR FR39740A patent/FR1462524A/en not_active Expired
- 1965-11-25 JP JP7247965A patent/JPS4830152B1/ja active Pending
- 1965-11-25 SE SE1528765A patent/SE338162B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1645453A1 (en) | 1970-10-29 |
| JPS4830152B1 (en) | 1973-09-18 |
| GB1113506A (en) | 1968-05-15 |
| NL135962C (en) | |
| BE672791A (en) | 1966-05-24 |
| CH456154A (en) | 1968-05-15 |
| SE338162B (en) | 1971-08-30 |
| AT269476B (en) | 1969-03-25 |
| FR1462524A (en) | 1966-12-16 |
| NL6413656A (en) | 1966-05-26 |
| NO125394B (en) | 1972-09-04 |
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