Polymeric isocyanate-hydroxy terminated polybutadiene compositio

Details Polymeric isocyanate-hydroxy terminated polybutadiene compositio Polymeric isocyanate-hydroxy terminated polybutadiene compositio

1972-09-25

1980-02-05

Lechert, Jr., Stephen J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

102103, 528 52, 528 53, 528 57, C08F 1824

Patent

active

041872150

ABSTRACT:
A composition and method are disclosed in which a homopolymeric isocyanate such as a toluene diisocyanate polymer is formed IN SITU within a polyurethane composition containing a hydroxy-terminated organic compound, preferably a polybutadiene, an amount of self-polymerizable polyisocyanate in excess of the stoichiometric requirement, and a polymerization catalyst therefor. The composition can be fully cured on a surface and yet provides an excess of stable material, i.e. dormant isocyanate containing groups which are reactive on demand to strengthen interfaces with adjacent layers containing available hydroxyl groups, such as a layer of solid polyurethane-based propellant, without the need for intermediate reactive coatings.

REFERENCES:
patent: 3433158 (1969-03-01), Pierce
patent: 3507114 (1970-04-01), Webb
patent: 3636881 (1972-01-01), Godfrey

Affiliated with

Also associated with

Rating

Polymeric isocyanate-hydroxy terminated polybutadiene compositio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymeric isocyanate-hydroxy terminated polybutadiene compositio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymeric isocyanate-hydroxy terminated polybutadiene compositio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2179738