ES448190A1 - Manufacture of polyurethane foam blocks with reduced compacting of peripheral portions - Google Patents

Manufacture of polyurethane foam blocks with reduced compacting of peripheral portions

Info

Publication number
ES448190A1
ES448190A1 ES448190A ES448190A ES448190A1 ES 448190 A1 ES448190 A1 ES 448190A1 ES 448190 A ES448190 A ES 448190A ES 448190 A ES448190 A ES 448190A ES 448190 A1 ES448190 A1 ES 448190A1
Authority
ES
Spain
Prior art keywords
polyurethane foam
foam blocks
manufacture
peripheral portions
reaction
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
ES448190A
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.)
RODAY ESPUMACIONES IND
Original Assignee
RODAY ESPUMACIONES IND
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 RODAY ESPUMACIONES IND filed Critical RODAY ESPUMACIONES IND
Priority to ES448190A priority Critical patent/ES448190A1/en
Priority to GB9735/77A priority patent/GB1534824A/en
Priority to JP3145877A priority patent/JPS52145472A/en
Priority to PT66487A priority patent/PT66487B/en
Priority to DE19772722841 priority patent/DE2722841A1/en
Priority to IT49483/77A priority patent/IT1116446B/en
Priority to FR7715763A priority patent/FR2352855A1/en
Publication of ES448190A1 publication Critical patent/ES448190A1/en
Priority to BE180626A priority patent/BE858339A/en
Priority to US06/066,839 priority patent/US4275024A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/28—Expanding the moulding material on continuous moving surfaces without restricting the upwards growth of the foam

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Procedure to minimize the densification of the peripheral areas of flexible polyurethane foam blocks, characterized by heating in a controlled way the mobile and stationary interior surfaces of the system where the reaction between the polyhydroxy compound and the polyisocyanate occurs, during the course of said reaction, said surfaces being in contact with the peripheral area of the block. (Machine-translation by Google Translate, not legally binding)
ES448190A 1976-05-24 1976-05-24 Manufacture of polyurethane foam blocks with reduced compacting of peripheral portions Expired ES448190A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES448190A ES448190A1 (en) 1976-05-24 1976-05-24 Manufacture of polyurethane foam blocks with reduced compacting of peripheral portions
GB9735/77A GB1534824A (en) 1976-05-24 1977-03-08 Manufacture of polyurethane foam blocks with reduced compacting of peripheral portions
JP3145877A JPS52145472A (en) 1976-05-24 1977-03-22 Process for minimize skin of polyurethane foam
PT66487A PT66487B (en) 1976-05-24 1977-04-28 Process for reducing to a minimum the densification of peripherical areas of continuous blocks in flexible polyurethane foam
DE19772722841 DE2722841A1 (en) 1976-05-24 1977-05-20 PROCESS FOR MINIMIZING THE COMPRESSED PERIODIC AREAS OF BLOCKS MADE OF FLEXIBLE POLYURETHANE FOAM
IT49483/77A IT1116446B (en) 1976-05-24 1977-05-20 PROCEDURE TO REDUCE THE AGGLOMERATION OF PERIPHERAL AREAS IN FOLDABLE POLYURETHANE FOAMS
FR7715763A FR2352855A1 (en) 1976-05-24 1977-05-23 PERFECTED PROCESS FOR THE MANUFACTURE OF POLYURETHANE FOAM BLOCKS
BE180626A BE858339A (en) 1976-05-24 1977-09-01 PERFECTED PROCESS FOR THE MANUFACTURE OF POLYURETHANE FOAM BLOCKS
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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES448190A ES448190A1 (en) 1976-05-24 1976-05-24 Manufacture of polyurethane foam blocks with reduced compacting of peripheral portions

Publications (1)

Publication Number Publication Date
ES448190A1 true ES448190A1 (en) 1977-08-01

Family

ID=8471629

Family Applications (1)

Application Number Title Priority Date Filing Date
ES448190A Expired ES448190A1 (en) 1976-05-24 1976-05-24 Manufacture of polyurethane foam blocks with reduced compacting of peripheral portions

Country Status (8)

Country Link
JP (1) JPS52145472A (en)
BE (1) BE858339A (en)
DE (1) DE2722841A1 (en)
ES (1) ES448190A1 (en)
FR (1) FR2352855A1 (en)
GB (1) GB1534824A (en)
IT (1) IT1116446B (en)
PT (1) PT66487B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES475522A2 (en) * 1978-11-29 1979-08-16 Tecfoam Sa Temp. controlled conveyor tunnel for producing polyurethane foam - with temp. distribution profiles adjustable to suit different reactivities
ES466951A1 (en) * 1978-02-14 1978-10-01 Tec Foam Sa Installations for manufacturing continuous blocks of polyurethane foam
DE2748733A1 (en) * 1977-10-29 1979-05-10 5090 Leverkusen PROCESS AND EQUIPMENT FOR THE CONTINUOUS PRODUCTION OF BLOCK-SHAPED FOAM
FI783792A7 (en) * 1978-01-18 1979-07-19 Tecfoam Sa FOERFARANDE FOER ELIMINERING AV EN FOERTAETNING AV BOTTENPARTIET VID FRAMSTAELLNING AV POLYURETANSKUMBLOCK

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966763A (en) * 1972-08-25 1974-06-28
JPS50126764A (en) * 1974-03-27 1975-10-06

Also Published As

Publication number Publication date
FR2352855A1 (en) 1977-12-23
PT66487B (en) 1978-09-29
DE2722841A1 (en) 1977-12-08
BE858339A (en) 1978-01-02
JPS52145472A (en) 1977-12-03
IT1116446B (en) 1986-02-10
PT66487A (en) 1977-05-01
GB1534824A (en) 1978-12-06

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