Urethane prepolymer composition and a polyurethane coating compo

Details Urethane prepolymer composition and a polyurethane coating compo Urethane prepolymer composition and a polyurethane coating compo

1989-02-01

1990-05-29

Welsh, Maurice J.

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...

524720, 524738, 524739, 525458, 25218222, C08G 1810

Patent

active

049296671

ABSTRACT:
A urethane prepolymer composition is provided comprising (a) a terminal isocyanate group-containing urethane prepolymer derived from a polytetramethylene glycol having a specific molecular weight of 700 to 1500 and an aliphatic and/or alicyclic diisocyanate and (b) a terminal isocyanate group-containing urethane prepolymer derived from a polycaprolactone diol and/or polyol having a specific molecular weight of 500 to 1500 and an aliphatic and/or alicyclic diisocyanate, the weight ratio of (a) to (b) being in the range of 80/20 to 20/80. This composition has excellent compatibility with a diol compound and/or a polyol compound, and can be formulated together with the diol compound and/or the polyol compound into a polyurethane coating composition system which forms a coating film having not only excellent weathering resistance, elastic recovery and transparency but also excellent low-temperature physical properties such as mechanical strength, flexibility and impact resistance at low temperatures, e.g., -30.degree. C. The composition system is useful for protecting and providing a good appearance to resin products, such as polyurethane bumpers and facing materials for buildings.

REFERENCES:
patent: 3746665 (1973-07-01), Koleske et al.
patent: 3899292 (1975-08-01), Okazaki et al.
patent: 3919351 (1975-11-01), Chang et al.
patent: 4131605 (1978-12-01), Ammons
patent: 4182898 (1980-01-01), Fujiwara et al.
patent: 4241140 (1980-12-01), Ammons
patent: 4374210 (1983-02-01), Ewen et al.

Affiliated with

Also associated with

Rating

Urethane prepolymer composition and a polyurethane coating compo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Urethane prepolymer composition and a polyurethane coating compo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Urethane prepolymer composition and a polyurethane coating compo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-521530