ES473730A2 - Improved manufacture of block of polyurethane foam - Google Patents

Improved manufacture of block of polyurethane foam

Info

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
Application number
ES473730A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECFOAM SA
Original Assignee
TECFOAM SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TECFOAM SA filed Critical TECFOAM SA
Priority to ES473730A priority Critical patent/ES473730A2/en
Priority to FI783792A priority patent/FI783792A/en
Priority to AU42789/78A priority patent/AU521610B2/en
Priority to AT0937278A priority patent/AT381277B/en
Priority to GB7850274A priority patent/GB2012657B/en
Priority to FR7900122A priority patent/FR2414996A1/en
Priority to NO790027A priority patent/NO790027L/en
Priority to IT47543/79A priority patent/IT1114302B/en
Priority to DE19792900525 priority patent/DE2900525A1/en
Priority to PT69056A priority patent/PT69056A/en
Priority to SE7900266A priority patent/SE420582B/en
Priority to YU00074/79A priority patent/YU7479A/en
Priority to BR7900294A priority patent/BR7900294A/en
Priority to CH40779A priority patent/CH635028A5/en
Priority to GR58116A priority patent/GR63066B/en
Priority to CA319,766A priority patent/CA1130523A/en
Priority to MX176314A priority patent/MX150391A/en
Priority to NL7900372A priority patent/NL7900372A/en
Priority to DK021979A priority patent/DK153303C/en
Priority to JP1669479A priority patent/JPS5546942A/en
Priority to GB7910820A priority patent/GB2030505B/en
Publication of ES473730A2 publication Critical patent/ES473730A2/en
Priority to US06/066,839 priority patent/US4275024A/en
Priority to JP56184339A priority patent/JPS57169333A/en
Expired legal-status Critical Current

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)
ES473730A 1976-05-24 1978-09-28 Improved manufacture of block of polyurethane foam Expired ES473730A2 (en)

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)

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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