METHOD FOR PRODUCTION OF RIGID AND ELASTIC POLYURETHANE FOAMS Russian patent published in 2003 - IPC

Abstract RU 2201941 C2

FIELD: polymer production. SUBSTANCE: invention relates to a method for production of water- foamed polyurethane materials utilizing specified catalyst as well as to polyurethanes obtained by this method. The latter consists in reaction of polyisocyanate with isocyanate-reactive compound in presence of water and, as catalyst, tin carboxylate and lithium, sodium, potassium, cesium, and/or barium salt of protonic acid having at least 2 acidic hydrogen atoms and pKa value 2 to 10 (in water), and/or protonic acid itself. Rigid polyurethane foam with filling density 3 to 27 kg/cu.m is prepared using indicated reactants and elastic polyurethane is obtained by crushing rigid one. Composition including 0.1-20 wt.parts catalyst, 10-55 wt. parts water, and 35-85 wt.parts polyol or polyol mixture is also described. Foams can be used as damping materials and as sound and thermal insulators in furniture, textile, and automobile industries. EFFECT: optimized production conditions. 12 cl, 1 tbl, 3 ex

Similar patents RU2201941C2

Title Year Author Number
FLEXIBLE POLYURETHANE FOAM PRODUCTION PROCESS 1998
  • Khajdzhens Ehrik
RU2198187C2
PIPP-POLYOL SYNTHESIS METHOD 2005
  • Ferkhel'St Gabriehl' Al'Bert
  • Juj Tszjan'Min
RU2386644C2
METHOD OF PRODUCTION OF AN ELASTOMER 2001
  • Blejz Gerkhard Jozef
  • Khjujgens Ehrik
RU2263123C2
PROCESS OF PRODUCING POLYURETHANE INTEGRAL FOAMS 2001
  • Moroni Dzhankarlo
  • Madzhetti Franko
RU2284336C2
INFLEXIBLE POLYURETHANE FOAM PLASTICS 1997
  • Ziker Tomas Khajnrikh
  • Gabriehli Franko
RU2184127C2
METHOD FOR PREPARING POLYURETHANE MATERIAL 2001
  • Blehjs Gerkhard Jozef
  • Khejgens Ehrik
  • Vankhalle Anja
RU2268270C2
FOAMED MATERIALS CONTAINING MATRIX WITH HIGH CONTENT OF RIGID BLOCKS AND METHOD OF PRODUCING SAID MATERIALS 2009
  • Blejz Gerkhard Jozef
  • Verbeke Khans Godelive Gvido
RU2461581C2
PRODUCTION PROCESS FOR POLYOL OF POLYISOCYANATE ADDITION POLYMERISATION 2004
  • Juj Tszjan'Min
  • Ferkhel'St Gabriehl' Al'Bert
RU2357976C2
VERY SOFT POLYURETHANE ELASTOMER 2002
  • Blehjs Gerkhard Jozef
  • Gekens Danni Anna Ehduard
  • Verbeke Khans Godelive Gvido
RU2284334C2
NEW TENNIS BALL 2008
  • Verbeke Khugo
  • Limerkens Dominikus
RU2473372C2

RU 2 201 941 C2

Authors

Ehling Berend

Dates

2003-04-10Published

1997-10-07Filed