Claims
- 1. An isocyanate-reactive composition comprising:
- a) at least one isocyanate-reactive compound of molecular weight of 1000 to 10000 and of functionality of 2 to 4, and
- b) an inert, insoluble, organic liquid which has a boiling point of at least 60.degree. C. at 1 bar.
- 2. A polyisocyanate composition having an isocyanate number average functionality of 2 to below 2.4 and comprising an inert, insoluble, organic liquid having a boiling point of at least 60.degree. C. at 1 bar.
- 3. An isocyanate-reactive composition according to claim 1 characterised in that the composition further comprises at least one 2 isocyanate-reactive compound having a molecular weight of at least 60 to below 1000 and a functionality of 2-8.
- 4. An isocyanate-reactive or polyisocyanate composition according to claim 1 characterised in that the composition further comprises a blowing agent.
- 5. An isocyanate-reactive or polyisocyanate composition according to claim 4 characterised in that the blowing agent comprises a compound having a boiling point of between -70.degree. C. to 0.degree. C. at 1 bar.
- 6. An isocyanate-reactive or polyisocyanate composition according to claim 5 characterised in that the blowing agent having a boiling point of between -70.degree. C. to 0.degree. C. is selected from the group consisting of CHClF.sub.2, CH.sub.2 F.sub.2, CF.sub.3 CH.sub.2 F, CF.sub.2 HCF.sub.2 H, CH.sub.3 CClF.sub.2, C.sub.2 H.sub.4 F.sub.2, C.sub.2 HClF.sub.4 and mixtures thereof.
- 7. An isocyanate-reactive or polyisocyanate composition according to claim 1 characterised in that the inert, insoluble, organic liquid is a fluorinated compound.
- 8. An isocyanate-reactive or polyisocyanate composition according to claim 7 characterised in that the fluorinated compound is selected from the group consisting of fluorinated hydrocarbons, fluorinated ethers, fluorinated tertiary amines, fluorinated amino-ethers and fluorinated sulfones.
- 9. An isocyanate-reactive or polyisocyanate composition according to claim 1 characterised in that the inert, insoluble, organic liquid has a boiling point of at least 75.degree. C. at 1 bar.
- 10. An isocyanate-reactive or polyisocyanate composition according to claim 1 characterised in that the composition further comprises a surfactant.
- 11. An isocyanate-reactive or polyisocyanate composition according to claim 10 characterised in that the surfactant is a fluorinated surfactant.
- 12. An isocyanate-reactive composition according to claim 4 characterised in that the blowing agent is water optionally together with a blowing agent having a boiling point of between -70.degree. C. to 0.degree. C. at 1 bar.
Priority Claims (5)
Number |
Date |
Country |
Kind |
9106967.4 |
Apr 1991 |
GBX |
|
9112622.7 |
Jun 1991 |
GBX |
|
9117749.3 |
Aug 1991 |
GBX |
|
9123205.8 |
Nov 1991 |
GBX |
|
9127335.9 |
Dec 1991 |
GBX |
|
Parent Case Info
This is a division of application Ser. No. 07/974,352, filed Nov. 10, 1992, now U.S. Pat. No. 5,240,965, which is a continuation of Ser. No. 07/852,070, filed Mar. 16, 1992, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (8)
Number |
Date |
Country |
0355713 |
Feb 1990 |
EPX |
0405439 |
Jan 1991 |
EPX |
3000743 |
Jan 1991 |
JPX |
3000744 |
Jan 1991 |
JPX |
3000745 |
Jan 1991 |
JPX |
3000746 |
Jan 1991 |
JPX |
1589562 |
May 1981 |
GBX |
2225030 |
Jun 1990 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
974352 |
Nov 1992 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
852070 |
Mar 1992 |
|