WebEP2 757 115B1 2 5 10 15 20 25 30 35 40 45 50 55 Description Technical Field [0001] The present invention relates to a method for producing a urethane optical member. More specifically, the present invention relates to a method for producing a urethane optical member using an aromatic polyisocyanate that WebThe present invention pertains to: a polymerizable composition comprising a cycloolefin-based monomer represented by a formula (I), and a polymerization catalyst, wherein R1 is a hydrocarbon group having 1 to 10 carbon atoms, a halogen atom, etc, m is an integer from 0 to 6n+6, and n is an integer from 1 to 3. As a result of the present invention, a …
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WebProvided are a urethane optical member that has excellent transparency without turbidity or fog and a high refractive index, and a method for producing the same. A urethane optical member including at least one kind of structures represented by the formula (1) or (2) in a structure constituting the optical member, and a method for producing the same. WebDE2147255A1 DE19712147255 DE2147255A DE2147255A1 DE 2147255 A1 DE2147255 A1 DE 2147255A1 DE 19712147255 DE19712147255 DE 19712147255 DE 2147255 A … cyst changes in size
POLYMERIZABLE COMPOSITION, CROSS-LINKABLE MOLDED …
WebA method for preparing polycarbonates by melt polycondensation of a dihydroxy compound and a diarylcarbonate compound in the presence of an alkaline catalyst is described. A branching quencher compound is added to an intermediate polycarbonate produced by the melt polycondensation reaction in an amount effective to inhibit or prevent the formation … WebOct 14, 2024 · little or no urination; painful or difficult urination; or. dehydration - dizziness, confusion, feeling very thirsty, less urination or … WebAug 18, 2024 · A Complete Collection of PP Blending Modified Formula (3), Nanjing Haisi Extrusion Equipment Co., Ltd. cyst cause bleeding between periods