Nova Patents
TH84656A

High impact poly(urethane urea) polysulfides

Abstract

DC60 (25/08/49) This invention relates to polyurea urethane containing sulfur. And the method of preparing such polyurea urethane, in nature, polyurea urethane with sulfur was modified. To have a refractive index of at least 1.57, an Abbe number of at least 32, and a density of less than 1.3 g / cm3, where there is a minimum. Some were cured The invention relates to polyurea urethane with sulfur. And the method of preparing such polyurea urethane, in appearance, Sulfur-modified polyurea urethane To have a refractive index of at least 1.57, an Abbe number of at least 32 and a density of less than 1.3 g / cm3, when there is a minimum. Some were cured

Term

No projected expiry on record.

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323 members in 23 offices

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14163605United States of AmericaA

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CA2467191A1CanadaA1
WO03044070A1World Intellectual Property Organization (WIPO)A1
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IL161982D0IsraelD0
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