Two-component polyurethane or polyisocyanurate spray foam composition containing a hydrohaloolefin blowing agent

Patent metadata

Field	Value
Publication number	US-11820877-B2
Application number	US-202016815441-A
Country	US
Kind code	B2
Filing date	Mar 11, 2020
Priority date	Mar 11, 2019
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more catalyst; and (b) a B-side component comprising one or more polyol; and further comprising one or more hydrohaloolefin blowing agent in either the A-side component or the B-side component, or in both; wherein both the A-side component and the B-side component, separately, generate less than 600 ppm of fluoride ion after two weeks of aging at 50° C.

First claim

What is claimed:

1. A storage-stable two-component polyurethane or polyisocyanurate spray foam composition comprising:
a) an A-side component comprising one or more polyisocyanate and one or more catalyst that is a morpholino compound; and
b) a B-side component comprising one or more polyol; and

further comprising one or more hydrohaloolefin blowing agent in either the A-side component or the B-side component, or in both;
wherein both the A-side component and the B-side component, separately, generate less than 600 ppm of fluoride ion after two weeks of aging at 50° C.

2. The storage-stable two-component polyurethane or polyisocyanurate spray foam composition of claim 1 , wherein the morpholino compound is 4-(2-hydroxyethyl)morpholine, dimorpholinodiethyl ether, 4-(2-chloroethyl)morpholine, 4-ethylmorpholine, or 4-(2-aminoethyl)morpholine, or a combination thereof.

3. The storage-stable two-component polyurethane or polyisocyanurate spray foam composition of claim 2 , wherein the morpholino compound is 4-(2-hydroxyethyl)morpholine.

4. The storage-stable two-component polyurethane or polyisocyanurate spray foam composition of claim 2 , wherein the morpholino compound is dimorpholinodiethyl ether.

5. The storage-stable two-component polyurethane or polyisocyanurate spray foam composition of claim 1 , wherein the hydrohaloolefin blowing agent is present in the A-side component.

6. The storage-stable two-component polyurethane or polyisocyanurate spray foam composition of claim 1 , wherein the hydrohaloolefin blowing agent is present in the B-side component.

7. The storage-stable two-component polyurethane or polyisocyanurate spray foam composition of claim 1 , wherein one or more hydrohaloolefin blowing agent is a hydrofluoroolefin.

8. The storage-stable two-component polyurethane or polyisocyanurate spray foam composition of claim 7 , wherein the hydrofluoroolefin blowing agent is selected from 3,3,3-trifluoropropene (HFO); 1,3,3,3-tetrafluoropropene (HFO 1234ze); 2,3,3,3-tetrafluoroprop-1-ene (HFO 1234yf); 1,2,3,3,3,-pentafluoropropene (HFO 1225ye); 1,1,1,3,3-pentafluoropropene (HFO 1225zc); 1,1,2,3,3-pentafluoropropene (HFO 1225yc); (Z)-1,1,1,2,3-pentafluoropropene (HFO 1225yez(Z)); or a combination thereof.

9. The two-component polyurethane or polyisocyanurate spray foam composition of claim 1 , wherein:
a) the A-side component optionally further comprises
i) one or more hydrohaloolefin blowing agent; and/or
ii) one or more surfactant; and

b) the a B-side component comprises:
i) one or more gelation catalyst, and
ii) the one or more hydrohaloolefin blowing agent, and
the B-side component optionally further comprises:
iii) iv) one or more flame retardants; and/or
iv) v) one or more surfactant.

10. The two-component polyurethane or polyisocyanurate spray foam composition of claim 9 , wherein one or more of the hydrohaloolefin blowing agents is a hydrofluoroolefin blowing agent.

11. A method of providing a space filling layer or space filling volume adjacent to a surface, the method comprising:
(a) providing a foamable composition comprising:
(i) an A-side component comprising one or more polyisocyanate and one or more catalyst that is a morpholino compound, and, optionally, one or more hydrohaloolefin blowing agent; and
(ii) a B-side component comprising one or more polyol and one or more hydrohaloolefin blowing agent;
wherein both the A-side component and the B-side component, separately, generate less than 600 ppm of fluoride ion after two weeks of aging at 50° C.;

(b) applying a foamed or pre-foamed sample of the foamable composition to said surface; and
(c) allowing the foamed sample of foamable composition to cure to a foam density less than 48 kg/m 3 .

12. The method of claim 11 wherein the morpholino compound is 4-(2-hydroxyethyl)-morpholine, dimorpholinodiethyl ether, 4-(2-chloroethyl)morpholine, 4-ethylmorpholine, or 4-(2-aminoethyl)morpholine, or a combination thereof.

Assignees

• Ddp Specialty Electronic Mat Us Inc
• Ddp Specialty Electronic Materials Us Llc

Inventors

• Koh Kyoung Moo
• Massueger Lars Alexander
• Liao Longyan
• Thomas Megan Marie

Classifications

• C08J9/14

  organic · CPC title

• C08G2101/00

  Manufacture of cellular products · CPC title

• C08G18/76

  aromatic · CPC title

• C08G18/66

  Compounds of groups C08G18/42, C08G18/48, or C08G18/52 · CPC title

• C08G18/40

  High-molecular-weight compounds {(C08G18/2805 takes precedence)} · CPC title