Oxazolidone-modified isocyanurate foams and a composition and method for their production

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The Olin Corporation patent solves the following problem:

This invention relates to a composition and method useful in fabricating high temperature degradation resistant rigid foams and more particularly concerned with a composition and method useful in fabricating thermally durable urethane-free oxazolidone-modified isocyanurate foams and foams thus prepared.

Our analysis of this patent is as follows:

Olin Corporation’s patent US 4699931 A deals with Oxazolidone-modified isocyanurate foams and a composition and method for their production.
Oxazolidone-containing isocyanurate foams characterized by thermal stability at a temperature of about 140 C. or higher. These foams produced by the reaction of at least one polyisocyanate with at least one polyepoxide in the presence of catalyst, surfactant, and blowing agents.

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Built-in wheel speed sensor structure for a car

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The Toyota Jidosha Kabushiki Kaisha patent solves the following problem:

A. Field of Invention

Our analysis of this patent is as follows:

Toyota Jidosha Kabushiki Kaisha’s patent US 4698536 A deals with Built-in wheel speed sensor structure for a car.
A built-in wheel speed sensor structure with an internal gear-like sensor rotor po- fixed to a wheel and an electromagnetic vehicle speed sensor attached to an inner part of a parking brake and facing the sensor rotor. The wheel speed sensor is supported by an anchor pin drum brake so that the sensor rotor into position from the hole to serve for the weary fastening bolts to a brake drum.

The revolutionary TRAN&ASSOCIATES provides patent creation and management tools to help inventors protect their inventions using the patent system. Full lawyer support to complete and file the application is available.