CH498065A - Verfahren zum Herstellen von freifliessendem kugelförmigem Paraformaldehyd - Google Patents
Verfahren zum Herstellen von freifliessendem kugelförmigem ParaformaldehydInfo
- Publication number
- CH498065A CH498065A CH687868A CH687868A CH498065A CH 498065 A CH498065 A CH 498065A CH 687868 A CH687868 A CH 687868A CH 687868 A CH687868 A CH 687868A CH 498065 A CH498065 A CH 498065A
- Authority
- CH
- Switzerland
- Prior art keywords
- paraformaldehyde
- preparation
- free flowing
- flowing spherical
- spherical
- Prior art date
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
- C08G2/08—Polymerisation of formaldehyde
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED0053028 | 1967-05-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH498065A true CH498065A (de) | 1970-10-31 |
Family
ID=7054645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH687868A CH498065A (de) | 1967-05-09 | 1968-05-08 | Verfahren zum Herstellen von freifliessendem kugelförmigem Paraformaldehyd |
Country Status (12)
Country | Link |
---|---|
US (1) | US3595926A (de) |
AT (1) | AT280233B (de) |
BE (1) | BE714869A (de) |
CH (1) | CH498065A (de) |
CS (1) | CS158217B2 (de) |
DE (1) | DE1720472B1 (de) |
FR (1) | FR1565223A (de) |
GB (1) | GB1185258A (de) |
NL (1) | NL6806145A (de) |
NO (1) | NO122616B (de) |
SE (1) | SE330526B (de) |
YU (1) | YU33106B (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4036891A (en) * | 1975-12-29 | 1977-07-19 | Moller Jens C T | Process for preparing paraformaldehyde |
US4550213A (en) * | 1984-06-29 | 1985-10-29 | Celanese Corporation | Method of manufacture for paraformaldehyde prills |
DD272576A3 (de) * | 1987-01-30 | 1989-10-18 | Leuna Werke Veb | Verfahren zur herstellung von koernigem paraformaldehyd |
CN104971672B (zh) | 2010-04-09 | 2018-01-02 | 帕西拉制药有限公司 | 用于配制大直径合成膜囊泡的方法 |
CN103335495B (zh) * | 2013-06-25 | 2015-05-06 | 国药控股星鲨制药(厦门)有限公司 | 一种快捷式器具干燥机 |
CN113061219A (zh) * | 2021-03-29 | 2021-07-02 | 无锡熙源工程技术有限公司 | 一种多聚甲醛生产工艺 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1208887B (de) * | 1963-11-14 | 1966-01-13 | Degussa | Verfahren zum Herstellen von freifliessendem Paraformaldehyd |
-
1967
- 1967-05-09 DE DE19671720472 patent/DE1720472B1/de active Pending
- 1967-06-14 SE SE08357/67A patent/SE330526B/xx unknown
-
1968
- 1968-02-28 NO NO68732A patent/NO122616B/no unknown
- 1968-03-19 YU YU623/68A patent/YU33106B/xx unknown
- 1968-04-25 CS CS307968A patent/CS158217B2/cs unknown
- 1968-05-01 NL NL6806145A patent/NL6806145A/xx unknown
- 1968-05-02 AT AT424968A patent/AT280233B/de not_active IP Right Cessation
- 1968-05-07 GB GB21573/68A patent/GB1185258A/en not_active Expired
- 1968-05-08 BE BE714869D patent/BE714869A/xx not_active IP Right Cessation
- 1968-05-08 CH CH687868A patent/CH498065A/de not_active IP Right Cessation
- 1968-05-09 FR FR1565223D patent/FR1565223A/fr not_active Expired
-
1969
- 1969-10-24 US US869393A patent/US3595926A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3595926A (en) | 1971-07-27 |
YU33106B (en) | 1976-04-30 |
YU62368A (en) | 1975-10-31 |
NO122616B (de) | 1971-07-19 |
AT280233B (de) | 1970-04-10 |
DE1720472B1 (de) | 1971-10-07 |
CS158217B2 (de) | 1974-10-15 |
SE330526B (de) | 1970-11-23 |
FR1565223A (de) | 1969-04-25 |
NL6806145A (de) | 1968-11-11 |
GB1185258A (en) | 1970-03-25 |
BE714869A (de) | 1968-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |