NL7509206A - Werkwijze om polyolen te bereiden. - Google Patents
Werkwijze om polyolen te bereiden.Info
- Publication number
- NL7509206A NL7509206A NL7509206A NL7509206A NL7509206A NL 7509206 A NL7509206 A NL 7509206A NL 7509206 A NL7509206 A NL 7509206A NL 7509206 A NL7509206 A NL 7509206A NL 7509206 A NL7509206 A NL 7509206A
- Authority
- NL
- Netherlands
- Prior art keywords
- preparing polyols
- polyols
- preparing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/06—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
- C07D307/08—Preparation of tetrahydrofuran
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
- C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
- C07C29/14—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of a —CHO group
- C07C29/141—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of a —CHO group with hydrogen or hydrogen-containing gases
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49429174A | 1974-08-02 | 1974-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7509206A true NL7509206A (nl) | 1976-02-04 |
Family
ID=23963875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7509206A NL7509206A (nl) | 1974-08-02 | 1975-08-01 | Werkwijze om polyolen te bereiden. |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5139615A (fr) |
| CA (1) | CA1066722A (fr) |
| DE (1) | DE2524039A1 (fr) |
| GB (1) | GB1486379A (fr) |
| IT (1) | IT1040456B (fr) |
| NL (1) | NL7509206A (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2346311A1 (fr) * | 1976-03-30 | 1977-10-28 | Du Pont | Procede de preparation du 2-methyl-1,3-propanediol |
| FR2376106A1 (fr) * | 1976-12-28 | 1978-07-28 | Du Pont | Procede pour preparer des polyols a partir d'un acetal cyclique |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581058A (en) * | 1978-12-13 | 1980-06-18 | Ube Ind Ltd | Injection method and device of die-casting machine |
| BR8004345A (pt) * | 1979-09-25 | 1981-04-28 | Nl Industries Inc | Macho desgastavel para ser usado em um molde para fundicao sob pressao e processo para se formar, a partir de metal fundido, uma pecas de fundicao sob pressao com uma regiao rebaixada |
| US5166370A (en) * | 1991-04-12 | 1992-11-24 | Arco Chemical Technology, L.P. | Preparation of tetrahydrofuran using a supported transition metal |
| JPH06254657A (ja) * | 1993-03-04 | 1994-09-13 | Hanano Shoji Kk | シェルモールド用鋳型の成型面処理方法 |
-
1975
- 1975-05-30 DE DE19752524039 patent/DE2524039A1/de not_active Withdrawn
- 1975-07-31 CA CA232,645A patent/CA1066722A/fr not_active Expired
- 1975-07-31 GB GB3212275A patent/GB1486379A/en not_active Expired
- 1975-08-01 NL NL7509206A patent/NL7509206A/xx not_active Application Discontinuation
- 1975-08-01 IT IT2604375A patent/IT1040456B/it active
- 1975-08-01 JP JP9327575A patent/JPS5139615A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2346311A1 (fr) * | 1976-03-30 | 1977-10-28 | Du Pont | Procede de preparation du 2-methyl-1,3-propanediol |
| FR2376106A1 (fr) * | 1976-12-28 | 1978-07-28 | Du Pont | Procede pour preparer des polyols a partir d'un acetal cyclique |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1066722A (fr) | 1979-11-20 |
| GB1486379A (en) | 1977-09-21 |
| IT1040456B (it) | 1979-12-20 |
| JPS5139615A (ja) | 1976-04-02 |
| DE2524039A1 (de) | 1976-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |