Materials comprising a matrix and process for preparing them

Patent metadata

Field	Value
Publication number	US-9926479-B2
Application number	US-201013375956-A
Country	US
Kind code	B2
Filing date	May 10, 2010
Priority date	Jun 9, 2009
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

The present invention is concerned with a material comprising: a matrix material comprising a plurality of urethane and/or urea and/or isocyanurate groups and having a hardblock content of more than 75% (hereinafter called matrix A); and a polymeric material which 1) has no groups which are able to form a urethane, urea or isocyanurate group with an isocyanate group, 2) exhibits a phase change as measured by differential scanning calorimetry (DSC) in the temperature range −10° C. to +60° C. with an enthalpy ΔHm of at least 87 kJ/kg, 3) is interpenetrating said matrix A, and 4) has an average molecular weight of more than 700 and comprises at least 50% by weight of oxyalkylene groups, based on the weight of this material, wherein at least 85% of the oxyalkylene groups are oxyethylene groups (hereinafter called polymeric material B); and wherein the relative amount of said matrix A and of said polymeric material B, on a weight basis, ranges from 15:85 to 75:25. Process for preparing such material.

First claim

The invention claimed is:

1. A material obtained by reacting ingredients for making at least one of a polyurethane and a polyisocyanurate matrix material having a hardblock content of more than 75% in the presence of a polymeric material,
wherein the polymeric material comprises the reaction product of a polyisocyanate and a monoamine, and further wherein the polymeric material:
1) has no groups which are able to form a urethane, urea or isocyanurate group with an isocyanate group,
2) exhibits a phase change as measured by differential scanning calorimetry (DSC) in the temperature range −10° C. to +60° C. with an enthalpy ΔHm of at least 87 kJ/kg,
3) is interpenetrating said matrix material, and
4) has an average molecular weight of more than 700 and comprises at least 50% by weight of oxyalkylene groups, based on the weight of said polymeric material, wherein at least 85% of the oxyalkylene groups are oxyethylene groups; and
whereby said matrix material is prepared by at least one of (a) reacting a polyisocyanate with an isocyanate-reactive compound having at least 2 isocyanate-reactive hydrogen atoms selected from hydroxyl groups and amine groups, and (b) allowing a polyisocyanate to trimerize using a trimerization catalyst; and
wherein the polymeric material is added during formation of the matrix material and acts as a plasticizing material for the matrix material and the relative amount of said matrix material and of said polymeric material, on a weight basis, ranges from 15:85 to 75:25.

2. The material according to claim 1 , wherein the hardblock content in said matrix material is at least 90%.

3. The material according to claim 1 , wherein all oxyalkylene groups in said polymeric material are oxyethylene groups.

4. The material according to claim 1 , wherein ΔHm is at least 88 kJ/kg.

5. The material according to claim 1 , wherein ΔHm is at least 90 kJ/kg.

6. The material according to claim 1 , wherein ΔHm is at least 100 kJ/kg.

7. A process for making a material, comprising reacting the ingredients for making a matrix material in the presence of a polymeric material, wherein:
a) the matrix material comprises at least one of urethane, urea, and isocyanurate groups and has a hardblock content of more than 75%; and
b) the polymeric material comprises the reaction product of a polyisocyanate and a monoamine, and further wherein the polymeric material:
1) has no groups which are able to form a urethane, urea or isocyanurate group with an isocyanate group,
2) exhibits a phase change as measured by differential scanning calorimetry (DSC) in the temperature range −10° C. to +60° C. with an enthalpy ΔHm of at least 87 kJ/kg,
3) is interpenetrating said matrix material, and
4) has an average molecular weight of more than 700 and comprises at least 50% by weight of oxyalkylene groups, based on the weight of this material, wherein at least 85% of the oxyalkylene groups are oxyethylene groups; and

wherein the relative amount of said matrix material and of said polymeric material, on a weight basis, ranges from 15:85 to 75:25.

8. The process according to claim 7 , wherein the hardblock content in said matrix material is at least 90%.

9. The process according to claim 7 , wherein all oxyalkylene groups in said polymeric material are oxyethylene groups.

10. The process according to claim 7 , wherein ΔHm is at least 88 kJ/kg.

11. The process according to claim 7 , wherein ΔHm is at least 90 kJ/kg.

12. The process according to claim 7 , wherein ΔHm is at least 100 kJ/kg.

13. A material obtained by reacting ingredients for making at least one of a polyurethane and a polyisocyanurate matrix material having a hardblock content of more than 75% in the presence of a polymeric material,
wherein the polymeric material comprises the reaction product of a polyisocyanate and a monoamine, and further wherein the polymeric material:
1) has no groups which are able to form a urethane, urea or isocyanurate group with an isocyanate group,
2) exhibits a phase change as measured by differential scanning calorimetry (DSC) in the temperature range −10° C. to +60° C. with an enthalpy ΔHm of at least 87 kJ/kg,
3) is interpenetrating said matrix material, and
4) has an average molecular weight of more than 700 and comprises at least 50% by weight of oxyalkylene groups, based on the weight of said polymeric material, wherein at least 85% of the oxyalkylene groups are oxyethylene groups; and
whereby said matrix material is prepared by at least one of (a) reacting a polyisocyanate with an isocyanate-reactive compound having at least 2 isocyanate-reactive hydrogen atoms selected from hydroxyl groups and amine groups, and (b) allowing a polyisocyanate to trimerize using a trimerization catalyst;
wherein the polymeric material is added during formation of the matrix material and acts as a heat sink during formation of the matrix material and as a plasticizing material for the matrix material; and
wherein the relative amount of said matrix material and of said polymeric material, on a weight basis, ranges from 15:85 to 75:25.

Assignees

• Bleys Gerhard Jozef
• Verbeke Hans Godelieve Guido
• Huntsman Int Llc

Inventors

• Bleys Gerhard Jozef
• Verbeke Hans Godelieve Guido

Classifications

• C09K5/063 Primary

  Materials absorbing or liberating heat during crystallisation; Heat storage materials · CPC title

• C08L71/02

  Polyalkylene oxides · CPC title

• C08L75/04

  Polyurethanes · CPC title

• C08L2666/22

  Macromolecular compounds not provided for in C08L2666/16 - C08L2666/20 · CPC title