Sprayable urethane resin composition and method

Details Sprayable urethane resin composition and method Sprayable urethane resin composition and method

1984-10-15

1985-09-24

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

427180, 427181, 427202, 427203, 427204, 427206, 427236, 427387, 427421, 427426, 4284231, 521117, 521122, 521123, 521124, 521127, 521137, 521159, 521167, 524786, 524874, 525460, 528 55, 528 58, 528 60, 528 77, 528 78, C08G 1814

Patent

active

045433666

ABSTRACT:
Sprayable urethane resin compositions and a process for preparing the sprayable resin compositions particularly with reinforcing materials such as chopped fiberglass, which process comprises reacting generally equal volumes of A and B side mixtures in a sprayable reaction to form a fast reacting, fast curing urethane resin, the A side mixture comprising an MDI or an MDI prepolymer prepared by reacting an MDI with a triol and a B side mixture comprising an auto catalytic, aromatic amine polyol having a hydroxyl number ranging from about 300 to 600, a viscosity reducing amount of a tetraethylene glycol and a catalyst to affect the rapid reaction and cure of the A and B side mixtures on spraying, the process may optionally include the incorporation of reinforcing materials, such as glass fibers and optionally may include the use of blowing agents to provide a lower density reinforced cured product.

REFERENCES:
patent: 4289684 (1981-09-01), Kalloun

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