Carbon dioxide blown polyurethane packaging foam with chemical n

Details Carbon dioxide blown polyurethane packaging foam with chemical n Carbon dioxide blown polyurethane packaging foam with chemical n

1991-06-11

1993-07-13

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521131, 521133, 521170, 521908, C08J 908, C08G 1808

Patent

active

052274080

ABSTRACT:
A method of preparing polyurethane packaging foam for dispensing into a container in which an article is present to be packaged for shipping, wherein the temperature of the polyurethane foam being dispensed into the container is reduced, as is the maximum reaction exotherm temperature. The method involves reacting polymeric isocyanate and polyoxyalkylated polyol precursors in the presence of water as the blowing agent for the foam. A nucleating agent is present in at least one of the precursors and is present in an amount sufficient to reduce the dispensing temperature of the foam reaction product but also the exotherm as the reaction continues to completion. Incorporation of a nucleating agent into the isocyanate and polyol resin components results in a carbon dioxide blown polyurethane packaging foam preferably having a density of 0.2 lb./ft..sup.3 to 2.0 lb./ft..sup.3.

REFERENCES:
patent: 3876567 (1975-04-01), Larkin et al.
patent: 3879315 (1975-04-01), Watkinson et al.
patent: 3882052 (1975-05-01), Raynor et al.
patent: 4264744 (1981-04-01), Milovanovic et al.
patent: 4454251 (1984-06-01), Frisch et al.
patent: 4621105 (1986-11-01), Statton et al.
patent: 4711910 (1987-12-01), Statton et al.
patent: 4960804 (1990-10-01), Doerge
patent: 4986928 (1991-01-01), Merchant
patent: 5037860 (1991-08-01), Parrish et al.
patent: 5100925 (1992-03-01), Watson, Jr. et al.
patent: 5114980 (1992-05-01), Lii et al.

Affiliated with

Also associated with

Rating

Carbon dioxide blown polyurethane packaging foam with chemical n does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbon dioxide blown polyurethane packaging foam with chemical n, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon dioxide blown polyurethane packaging foam with chemical n will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2312339