ES2128993B1 - PROCEDURE FOR THE MANUFACTURE OF LATEX-POLYURETHANE FOAMS. - Google Patents

PROCEDURE FOR THE MANUFACTURE OF LATEX-POLYURETHANE FOAMS.

Info

Publication number
ES2128993B1
ES2128993B1 ES9701161A ES9701161A ES2128993B1 ES 2128993 B1 ES2128993 B1 ES 2128993B1 ES 9701161 A ES9701161 A ES 9701161A ES 9701161 A ES9701161 A ES 9701161A ES 2128993 B1 ES2128993 B1 ES 2128993B1
Authority
ES
Spain
Prior art keywords
latex
manufacture
procedure
polyurethane foams
water content
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 - Fee Related
Application number
ES9701161A
Other languages
Spanish (es)
Other versions
ES2128993A1 (en
Inventor
Carpio Conde Bernardo Del
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.)
Fabricas Lucia Antonio Betere SA FLABESA
Original Assignee
Fabricas Lucia Antonio Betere SA FLABESA
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 Fabricas Lucia Antonio Betere SA FLABESA filed Critical Fabricas Lucia Antonio Betere SA FLABESA
Priority to ES9701161A priority Critical patent/ES2128993B1/en
Publication of ES2128993A1 publication Critical patent/ES2128993A1/en
Application granted granted Critical
Publication of ES2128993B1 publication Critical patent/ES2128993B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Procedimiento ppara la fabricación de espumas de látex-poliuretano. El procedimiento comprende una etapa previa de retirada parcial o total del agua contenida en un látice comercial (con un contenido en agua típico del 65% en peso), antes de su adición a la mezcla de reacción, ppara reducir el contenido en agua del látice hasta el nivel deseado, mediante un sistema de desecación que comprende un material capaz de retirar agua o humedad del látice, tal como gel de sílice. El látice se mezcla, entonces, con los precursores del poliuretano, que comprenden un compuesto polihidroxilado y un poliisocianato, y finalmente se forma la espuma mediante la incorporación de un espumante. Modificando el contenido en agua del látice se pueden obtener espumas de látex-poliuretano tanto de alta como de baja densidad y con un contenido en látex ampliamente variable. Estas espumas son adecuadas para la fabricación de colchones.Procedure for the manufacture of latex-polyurethane foams. The procedure comprises a previous step of partially or totally removing the water contained in a commercial latex (with a typical water content of 65% by weight), before adding it to the reaction mixture, to reduce the water content of the latex. to the desired level, by means of a drying system comprising a material capable of removing water or moisture from the latex, such as silica gel. The latex is then mixed with the polyurethane precursors, which comprise a polyhydroxy compound and a polyisocyanate, and finally the foam is formed by incorporating a foaming agent. By modifying the water content of the latex, both high and low density latex-polyurethane foams can be obtained with a widely variable latex content. These foams are suitable for the manufacture of mattresses.

ES9701161A 1997-05-28 1997-05-28 PROCEDURE FOR THE MANUFACTURE OF LATEX-POLYURETHANE FOAMS. Expired - Fee Related ES2128993B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9701161A ES2128993B1 (en) 1997-05-28 1997-05-28 PROCEDURE FOR THE MANUFACTURE OF LATEX-POLYURETHANE FOAMS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9701161A ES2128993B1 (en) 1997-05-28 1997-05-28 PROCEDURE FOR THE MANUFACTURE OF LATEX-POLYURETHANE FOAMS.

Publications (2)

Publication Number Publication Date
ES2128993A1 ES2128993A1 (en) 1999-05-16
ES2128993B1 true ES2128993B1 (en) 2000-01-01

Family

ID=8299483

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9701161A Expired - Fee Related ES2128993B1 (en) 1997-05-28 1997-05-28 PROCEDURE FOR THE MANUFACTURE OF LATEX-POLYURETHANE FOAMS.

Country Status (1)

Country Link
ES (1) ES2128993B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL42763C (en) * 1934-12-05
US2877212A (en) * 1954-10-11 1959-03-10 Du Pont Polyurethanes from difunctional polymers of conjugated dienes
BE625005A (en) * 1961-12-02

Also Published As

Publication number Publication date
ES2128993A1 (en) 1999-05-16

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