ES473730A2 - Improved manufacture of block of polyurethane foam - Google Patents
Improved manufacture of block of polyurethane foamInfo
- Publication number
- ES473730A2 ES473730A2 ES473730A ES473730A ES473730A2 ES 473730 A2 ES473730 A2 ES 473730A2 ES 473730 A ES473730 A ES 473730A ES 473730 A ES473730 A ES 473730A ES 473730 A2 ES473730 A2 ES 473730A2
- Authority
- ES
- Spain
- Prior art keywords
- foam
- type
- polyurethane foam
- block
- endless band
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Improvements introduced in the object of the main patent no. 466.102 filed on january 18, 1978 by a procedure to eliminate the densification of the bottom zone, in the manufacture of blocks of polyurethane foam, according to which the surface temperature of the the endless band, on which a web of continuous material is superimposed, and on which the foam is formed, is varied so that in a first reaction zone located upstream of said endless band acquires a constant value tr, and in a second consolidation zone another constant value tc, said constant temperature values being for each type of foam, and because the time that said temperature is maintained for each type of foam is given by the relation tt = tr tc, being tt the total residence time of the foam in the reaction tunnel, and tr being a fixed value for each type of foam. (Machine-translation by Google Translate, not legally binding)
Priority Applications (23)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES473730A ES473730A2 (en) | 1978-09-28 | 1978-09-28 | Improved manufacture of block of polyurethane foam |
FI783792A FI783792A (en) | 1978-01-18 | 1978-12-08 | FOERFARANDE FOER ELIMINERING AV EN FOERTAETNING AV BOTTENPARTIET VID FRAMSTAELLNING AV POLYURETANSKUMBLOCK |
AU42789/78A AU521610B2 (en) | 1978-01-18 | 1978-12-21 | Eliminating dens ification inthe manufacture of polyurethane foam blocks |
AT0937278A AT381277B (en) | 1978-01-18 | 1978-12-29 | METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF BLOCKS FROM POLYURETHANE FOAM |
GB7850274A GB2012657B (en) | 1978-01-18 | 1978-12-29 | Manufacture of blocks of polyurethane foam |
FR7900122A FR2414996A1 (en) | 1978-01-18 | 1979-01-03 | PROCESS FOR REMOVING DENSIFICATION FROM THE BASE OF POLYURETHANE FOAM BLOCKS DURING THEIR MANUFACTURING |
NO790027A NO790027L (en) | 1978-01-18 | 1979-01-04 | PROCEDURE FOR ELIMINATION OF THE DENSITY OF THE BOTTOM AREA DURING THE MANUFACTURE OF POLYURETHANE FOAM BLOCKS |
IT47543/79A IT1114302B (en) | 1978-01-18 | 1979-01-05 | PROCEDURE FOR OBTAINING POLYURETHANE FOAM BLOCKS FREE OF DENSITIZATION ON THE BOTTOM |
DE19792900525 DE2900525A1 (en) | 1978-01-18 | 1979-01-08 | PROCESS FOR PRODUCING BLOCKS FROM POLYURETHANE FOAM |
PT69056A PT69056A (en) | 1978-01-18 | 1979-01-10 | Process for eliminating the densification of bottom areas during the manufacture of polyurethane foam blocks |
SE7900266A SE420582B (en) | 1978-01-18 | 1979-01-11 | PROCEDURE FOR PREPARING POLYURETHANE FOAM BLOCK |
YU00074/79A YU7479A (en) | 1978-01-18 | 1979-01-15 | Process for the elimination of the densification in the lower parts of blocs made of polyurethane foam during production thereof |
BR7900294A BR7900294A (en) | 1978-01-18 | 1979-01-16 | PROCESS TO ELIMINATE DENSIFICATION OF THE FUND ZONE DURING THE MANUFACTURE OF POLYURETHANE FOAM BLOCKS |
CH40779A CH635028A5 (en) | 1978-01-18 | 1979-01-16 | METHOD FOR PRODUCING BLOCKS FROM POLYURETHANE FOAMS. |
GR58116A GR63066B (en) | 1978-01-18 | 1979-01-17 | Process for eliminating densification of the bottom area during the manufacture of blocks of polyurethane foam |
CA319,766A CA1130523A (en) | 1978-01-18 | 1979-01-17 | Process for eliminating densification of the bottom area during manufacture of blocks of polyurethane foam |
MX176314A MX150391A (en) | 1978-01-18 | 1979-01-17 | IMPROVED PROCEDURE TO ELIMINATE DENSIFICATION OF THE BACKGROUND AREA OF POLYURETHANE FOAM BLOCKS |
NL7900372A NL7900372A (en) | 1978-01-18 | 1979-01-17 | MANUFACTURE OF POLYURETHANE FOAM BLOCKS. |
DK021979A DK153303C (en) | 1978-01-18 | 1979-01-18 | PROCEDURE FOR THE PREPARATION OF POLYURETHAN FOOD BLOCKS |
JP1669479A JPS5546942A (en) | 1978-09-28 | 1979-02-15 | Improved preparation of block of polyurethane foam |
GB7910820A GB2030505B (en) | 1978-09-28 | 1979-03-28 | Installations for obtaining continuous blocks of polyurethane |
US06/066,839 US4275024A (en) | 1976-05-24 | 1979-08-15 | Process and apparatus for elimination of densified areas in blocks of pliable polyurethane foam |
JP56184339A JPS57169333A (en) | 1978-09-28 | 1981-11-17 | Improved manufacture of block of polyurethane foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES473730A ES473730A2 (en) | 1978-09-28 | 1978-09-28 | Improved manufacture of block of polyurethane foam |
Publications (1)
Publication Number | Publication Date |
---|---|
ES473730A2 true ES473730A2 (en) | 1979-05-01 |
Family
ID=8476832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES473730A Expired ES473730A2 (en) | 1976-05-24 | 1978-09-28 | Improved manufacture of block of polyurethane foam |
Country Status (2)
Country | Link |
---|---|
JP (2) | JPS5546942A (en) |
ES (1) | ES473730A2 (en) |
-
1978
- 1978-09-28 ES ES473730A patent/ES473730A2/en not_active Expired
-
1979
- 1979-02-15 JP JP1669479A patent/JPS5546942A/en active Pending
-
1981
- 1981-11-17 JP JP56184339A patent/JPS57169333A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5546942A (en) | 1980-04-02 |
JPS628285B2 (en) | 1987-02-21 |
JPS57169333A (en) | 1982-10-19 |
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