GB1318801A - Apparatus for producing thermo-plastic foam - Google Patents
Apparatus for producing thermo-plastic foamInfo
- Publication number
- GB1318801A GB1318801A GB1318801DA GB1318801A GB 1318801 A GB1318801 A GB 1318801A GB 1318801D A GB1318801D A GB 1318801DA GB 1318801 A GB1318801 A GB 1318801A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gun
- catalyst
- resin
- vessel
- valves
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7404—Mixing devices specially adapted for foamable substances
- B29B7/7409—Mixing devices specially adapted for foamable substances with supply of gas
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
1318801 Mixing apparatus MIDLAND INSULATORS (NOTTINGHAM) Ltd and E H O'HARA 10 May 1971 [13 May 1970] 23112/70 Heading B1C [Also in Division C3] Apparatus for producing foamed urea formaldehyde resins, from the resin and a catalyst, comprises a gun for foaming either the catalyst or the resin, the gun having an outlet for spraying the foam, pressure vessels for the resin and the catalyst respectively connected to the gun, a reserve container connected through a control valve to each vessel and an audible alarm system which indicates when the content of either vessel reaches a given minimum level. The valves may be operated automatically or manually. The reserve containers may be open or pressurised vessels. In the drawing, pressure vessels 1, 2 are connected via 3, 4 to foaming gun 5 which is also fed by compressed air from line 6. Vessel 1 is filled with urea formaldehyde resin while 2 is filled with a catalyst comprising phosphoric acid. 7 and 8 are reserve vessels connected to 1, 2 via valves 9, 10. Audible alarm 11 is connected to level sensors in 1, 2 and operates valves 9, 10. Gun 5 comprises chamber 12 filled with glass balls 13 and nozzle 14, and is fed with air from 6, resin from 1 and catalyst from 2 so as to produce foam in spray form from 14. When the level of either vessel 1 or 2 reaches a given minimum, alarm 11 is operated thereby opening valves 9 or 10 to replenish vessel 1 or 2 from 7 or 8. Connections 3, 4 to gun 5 may be interchanged so as to foam the resin instead of the catalyst.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2311270 | 1970-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1318801A true GB1318801A (en) | 1973-05-31 |
Family
ID=10190312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1318801D Expired GB1318801A (en) | 1970-05-13 | 1970-05-13 | Apparatus for producing thermo-plastic foam |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2123651A1 (en) |
GB (1) | GB1318801A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102001148A (en) * | 2010-10-25 | 2011-04-06 | 北京市农林科学院 | Urea-formaldehyde resin foaming and mixing device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4425317A1 (en) * | 1994-07-18 | 1996-01-25 | Bayer Ag | Polymer foam mfr. |
-
1970
- 1970-05-13 GB GB1318801D patent/GB1318801A/en not_active Expired
-
1971
- 1971-05-12 DE DE19712123651 patent/DE2123651A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102001148A (en) * | 2010-10-25 | 2011-04-06 | 北京市农林科学院 | Urea-formaldehyde resin foaming and mixing device |
CN102001148B (en) * | 2010-10-25 | 2013-04-03 | 北京市农林科学院 | Urea-formaldehyde resin foaming and mixing device |
Also Published As
Publication number | Publication date |
---|---|
DE2123651A1 (en) | 1971-12-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |