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AssigneeLintec Corporation
InventorsMikihiro Kashio, Takashi Tamada, Naohumi Izumi
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A molding material includes a polyorganosiloxane compound having a ladder structure including a repeating unit shown by the following formula (I) in the molecule as a main component, a sealing material includes the molding material, and a sealed optical device includes an optical device that is sealed with a cured product of the sealing material. The molding material produces a cured product that exhibits excellent transparency and heat resistance for a long time. wherein A represents a single bond or a linking group, R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X0 represents a halogen atom, a haloalkyl group having 1 to 10 carbon atoms, or a cyano group, R2 represents a substituted or unsubstituted phenyl group, an alkyl group having 1 to 20 carbon atoms which may have a substituent (excluding a halogen atom and a cyano group), or an alkenyl group having 2 to 20 carbon atoms, and l, m, and n are arbitrary positive numbers, provided that l and n are not 0 at the same time.
A molding material comprising a polyorganosiloxane compound as a main component, the polyorganosiloxane compound having a ladder structure including a repeating unit shown by the following formula (I) in the molecule,
A molding material comprising a polyorganosiloxane compound as a main component, the polyorganosiloxane compound being obtained by reacting a silane compound (1) shown by X0—CH(R1)-A-Si(OR4)p(X2)3-p (wherein X0 represents a halogen atom, a haloalkyl group having 1 to 10 carbon atoms, or a cyano group, R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, A represents a single bond or a linking group, R4 represents an alkyl group having 1 to 6 carbon atoms, X2 represents a halogen atom, and p is an integer from 0 to 3) and a silane compound (2) shown by R2Si(OR5)q(X3)3-q (wherein R2 represents a substituted or unsubstituted phenyl group, an alkyl group having 1 to 20 carbon atoms which may have a substituent (excluding a halogen atom and a cyano group), an alkenyl group having 2 to 20 carbon atoms, or a group shown by -A1-CH(X1)—R3 (wherein A1 represents a single bond or a linking group, X1 represents a hydrogen atom or a group shown by OG (wherein G represents a protecting group for a hydroxyl group), R3 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms), R5 represents an alkyl group having 1 to 6 carbon atoms, X3 represents a halogen atom, and q is an integer from 0 to 3) in a molar ratio of 5:95 to 100:0 (=silane compound (1):silane compound (2)) in the presence of a catalyst.
Dependencies are inferred from the claim text.