Flame retardant urea-bio based urethane compositions

Details Flame retardant urea-bio based urethane compositions Flame retardant urea-bio based urethane compositions

2006-10-31

2006-10-31

Yoon, Tae H. (Department: 1714)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S590000

Reexamination Certificate

active

07129291

ABSTRACT:
Flame retardant urethane compositions of this invention are produced by reacting a urea and/or urea condensate, a bio based compound and a polyisocyanate. The urea condensation compositions are produced by heating urea or heating urea to produce isocyanic acid and/or cyanic acid which reacts with urea to form urea condensates. The bio based compound are environmentally friendly, replaceable compound such as vegetable oils, molasses, sugar, lignin and hemi-cellulose. The urea and/or urea condensation compounds may be mixed with or reacted with carbonization auxiliaries. For example, polyurethane foams can be rendered less flammable with urea and/or urea condensation compounds and utilized as insulating and sound proofing materials.

REFERENCES:
patent: 3332896 (1967-07-01), Burns et al.
patent: 4383078 (1983-05-01), Blount
patent: 4990586 (1991-02-01), Case

Affiliated with

Also associated with

Rating

Flame retardant urea-bio based urethane compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flame retardant urea-bio based urethane compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flame retardant urea-bio based urethane compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3675320