Vegetable oil extended polyurethane systems
AssigneeCommunications Technology Corporation
InventorJames M. Arnold
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Abstract
A vegetable oil extended polyurethane system comprising the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of a vegetable oil and, optionally, a plasticizer, said polyurethane systems being applicable for use as reenterable encapsulants for sealing insulated electrical devices, as hard, permanent encapsulants and as general polyurethane elastomers.
Claims12
A vegetable oil extended polyurethane system consisting essentially of the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of vegetable oil, the vegetable oil being present in a range of from about 1 to 80%, by weight of the total extended system, and being selected from the group consisting of soybean, safflower, corn, sunflower, linseed, oiticica, coconut, cottonseed, peritta, palm, olive, rape and peanut oils and mixtures thereof.
A vegetable oil extended polyurethane system consisting essentially of the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of vegetable oil, the vegetable oil being present in a range of from about 1 to 80%, by weight of the total extended system, and a plasticizer in a concentration of from about 1 to 50%, by weight of the total extended system, said vegetable oil being selected from the group consisting of soybean, safflower, corn, sunflower, linseed, oiticica, coconut, cottonseed, peritta, palm, olive, rape and peanut oils and mixtures thereof.
Dependencies are inferred from the claim text.