摘要:
A circuit device mounted on a substrate includes a detection circuit that monitors a characteristic of a return signal to determine an integrity of various interconnects of the device.
摘要:
A circuit device mounted on a substrate includes a detection circuit that monitors a characteristic of a return signal to determine an integrity of various interconnects of the device.
摘要:
A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a ricinoleate plasticizer compound having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. between about 9.1 and .[.9.7..]. .Iadd.10.1. .Iaddend.Said polyurethane systems are cured, cross-linked, nonspewing, grease compatible, and reenterable. This extended polyurethane is further characterized as having superior insulating properties so that it can be used of repairing, encapsulating or reclaiming electrical or telecommunication cables as well as for hard volume encapsulants or general elastomer use.
摘要:
A cyclic olefin extended polyurethane system comprising the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of a cyclic olefin extender and, optionally, a liquid ester or other type of extender. Said polyurethane systems are cured, crosslinked, non-spewing, grease compatible, and reenterable. This extended polyurethane is further characterized as having superior insulating properties so that it can be used for repairing, encapsulation or reclaiming electrical or telephone cables as well as hard volume encapsulants for general elastomer use. The extended polyurethane is comprised of a defined polyurethane, novel extender combinations, and optionally, a coupling agent.
摘要:
Castor oil-based polyol polymer compositions and their use in processes for preparing polyurethane compounds with modified properties (e.g. tensile strength, hydrolytic stability, and the like) are described.
摘要:
Polyol mixtures having about 10 to 60 weight percent of a ricinoleate compound and 90 to 40 weight percent of a C.sub.2 -C.sub.6 hydrocarbon polymer having at least one hydroxyl group. Polyurethane compositions comprising the reaction product of this polyol mixture with an organic isocyanate compound. These compositions may optionally include certain extender compounds. Also, a method for lowering the viscosity of C.sub.2 -C.sub.6 hydrocarbon polymer having at least one hydroxyl group by adding a ricinoleate compound thereto.
摘要:
A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a ricinoleate plasticizer compound having a total solubility parameter of between about 8.3 and 8.9 or between about 9.1 and 9.7. Said polyurethane systems are cured, cross-linked, nonspewing, grease compatible, and reenterable. This extended polyurethane is further characterized as having superior insulating properties so that it can be used of repairing, encapsulating or reclaiming electrical or telecommunication cables as well as for hard volume encapsulants or general elastomer use.
摘要:
A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a plasticizer compound having a total solubility parameter of between about 8.3 and 8.9 or between about 9.1 and 9.7.
摘要:
Castor oil-based polyol polymer compositions and their use in processes for preparing polyurethane compounds with modified properties (e.g. tensile strength, hydrolytic stability, and the like) are described.
摘要:
A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a plasticizer compound having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. between about 9.1 and 9.7.