摘要:
An adhesive composition for bonding optical parts comprising (A) 3 to 60 wt% of an epoxysilane or a hydrolysis/polycondensation product thereof, (B) 5 to 90 wt% of a bisphenol type epoxy resin having a viscosity of 2,000 to 5,000 mPa·s, (C) 5 to 35 wt% of a novolak type epoxy resin, 3 to 30 wt% of a curing agent which is an amine, and water and an alcohol in an amount of 0 to 0.75 time the total number of mols of the hydrolyzable groups or atoms of the epoxysilane. This composition has excellent moisture resistance and heat resistance, suppresses the formation of bubbles during curing, is free from such a defect as opaqueness caused by bubbles and can be used for the assembly and bonding of optical parts.
摘要:
Die Erfindung betrifft einen elektrisch isolierenden Klebstoff, ein Verfahren zu dessen Herstellung und dessen Verwendung zur Herstellung von elektrisch Isolierenden Verklebungen. Der erfindungsgemäße Klebstoff ist erhältlich durch (hydrolytische) Kondensation von
a) 1 bis 10 mol-% einer oder mehrerer Silicium-Verbindungen der allgemeinen Formel I,
Si R 4 (I)
in der die Reste R gleich oder verschieden sind und Halogen, Hydroxy, Alkoxy, Acyloxy oder einen Chelatliganden bedeuten; b) 20 bis 94 mol-% einer oder mehrerer Silicium-Verbindungen der allgemeinen Formel II,
R'' m (R'''Y) n SiX (4-m-n) (II)
in der die Reste R'', R''' und X gleich oder verschieden sind und folgende Bedeutung haben:
R'' = Alkyl, Alkenyl, Aryl, Alkylaryl, Arylalkyl, Alkenylaryl oder Arylalkenyl, wobei diese Reste gegebenenfalls durch Sauerstoff, Schwefel oder NH-Gruppen unterbrochen sind, R'''= Alkylen, Alkenylen, Arylen, Alkylarylen, Arylalkylen, Alkenylarylen oder Arylalkenylen, wobei diese Reste gegebenenfalls durch Sauerstoff, Schwefel oder NH-Gruppen unterbrochen sind, X = Halogen, Hydroxy, Alkoxy, Acyloxy oder NR' 2 , mit R' = Wasserstoff oder Alkyl; Y = ein Rest mit einer oder mehreren polymerisierbaren Gruppen, m = 0, 1, 2 oder 3, n = 1, 2 oder 3, mit m+n = 1, 2 oder 3, und c) 5 bis 30 mol-% einer oder mehrerer Silicium-Verbindungen der allgemeinen Formel III,
R'' p SiX 4-p (III)
in der die Reste R'' und X gleich oder verschieden sind und die oben genannte Bedeutung haben, mit p = 1, 2 oder 3.
摘要翻译:电气绝缘粘接剂(EIA)中,由(a)的1-10%(摩尔)式SIR 4(I),卤素在哪硅化合物(S)的(水解)缩合得到R = OH,烷氧基,酰氧基或螯合配体; (B)20-94%(摩尔)化学式为R “M(R”“Y)nSiX4-MN(II)的硅化合物(S)的,其中R“=烷基,烯基,芳基,烷芳基芳烷基,烯基芳基或芳烯基,任选 在链O,S或NH; R““=亚烷基,亚烯基,亚芳基,亚烷芳基,亚芳烷基,或alkenylarylene aralkenylene,任选与链O,S或NH; X =卤素,OH,烷氧基,酰氧基或N(R ')2(其中R'= H或烷基); Y =用可聚合基团(一个或多个)的残基; m为0,1,2或3; n = 1时,2或3; M + N = 1,2或3; 和(c)5-30%(摩尔)化学式为R的硅化合物(S) “P SiX4-P(III),其中R” 和X =如上,且p = 1,2或3要求保护所以为过程 由湿气或水的溶剂和/或催化剂存在下的动作在上述混合物和/或上述化合物的预缩合物的水解缩合生产EIA的。
摘要:
Compositions of a) a silicone resin characterized by an intermediate region free of acrylic groups, at least 150 siloxane units long, and terminal acrylic groups; b) at least 10% of a fumed silica filler; and c) a photoinitiator, can be cured by UV irradiation to tough elastomeric materials useful in adhesive and sealant applications.
摘要:
Compositions of a) a silicone resin characterized by an intermediate region free of acrylic groups, at least 150 siloxane units long, and terminal acrylic groups; b) at least 10% of a fumed silica filler; and c) a photoinitiator, can be cured by UV irradiation to tough elastomeric materials useful in adhesive and sealant applications.
摘要:
The present invention is a curable composition comprising a component (A), a component (B), a component (C), and a component (D), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:20, the component (A) being a silane compound (co)polymer that is represented by a formula (a-1) or a formula (a-2), €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(CHR 1 X 0 -D-SiO 3/2 ) m (R 2 SiO 3/2 ) n (CHR 1 X 0 -D-SiZ 1 O 2/2 ) o (R 2 SiZ 2 O 2/2 ) p (CHR 1 X 0 -D-SiZ 3 2 O 1/2 ) q (R 2 SiZ 4 2 O 1/2 )r ···€ƒ€ƒ€ƒ€ƒ€ƒ(a-1) €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(R 3 SiO 3/2 ) s (R 3 SiZ 5 O 2/2 ) t (R 3 SiZ 5 2 O 1/2 ) u ···€ƒ€ƒ€ƒ€ƒ€ƒ(a-2) the component (B) being fine particles having an average primary particle size of more than 0.04 µm and 8 µm or less, the component (C) being a silane coupling agent that comprises a nitrogen atom in its molecule, and the component (D) being a silane coupling agent that comprises an acid anhydride structure in its molecule, and an optical element-securing composition, and a cured product, and an optical element-securing material, and a method for using the curable composition, and an optical device.
摘要:
A method of attaching a medical device (204) to a surface (201), the medical device having at least one adhesive area (203), wherein the method comprises the steps of: contacting (101) the surface with a composition comprising a T silicone resin and/or a DT silicone resin and/or an MQ silicone resin, thereby providing non-tacky coating on the surface; and attaching (102) the adhesive area to the surface such that the composition is located between, and in contact with, the surface and the adhesive area, thereby attaching medical device to the surface; thereby achieving an improve adherence between the medical device and the surface.
摘要:
UV curable adhesive compositions are provided that include 1) a UV curable poly(meth)acrylate copolymer containing monomeric units having an epoxy group wherein the poly(meth)acrylate copolymer has a glass transition temperature between -30°C and -10°C, 2) a silsesquioxane polymer having epoxy-containing groups, and 3) a photocatalyst. UV cured adhesive compositions and adhesive tapes containing the cured adhesive compositions are also provided. The cured adhesive compositions are pressure sensitive adhesives.
摘要:
Provided is a curable composition that can, when cured, form a cured product having adhesiveness and adhesion to an adherend at excellent levels. The curable composition contains a polyorganosilsesquioxane and one of (A) a compound represented by Formula (X); and (B) a polymerization stabilizer, where Formula (X) is expressed as follows:
wherein r1 represents an integer from 4 to 20; L represents a group containing epoxy, oxetanyl or vinyl ether group; R 11 and R 12 each represent an optionally substituted hydrocarbon group; s1 represents an integer from 1 to 3; t1 represents an integer from 0 to 2, where s1 plus t1 equals 3; and R 13 and R 14 are selected from hydrogen and an optionally substituted hydrocarbon group. The polyorganosilsesquioxane has a number-average molecular weight of 1000 to 3000 and a molecular-weight dispersity of 1.0 to 3.0, includes a constitutional unit represented by Formula (1), has a ratio of a constitutional unit represented by Formula (I) to a constitutional unit represented by Formula (II) of 5 or more, and has a total proportion of the constitutional unit
摘要:
An organopolysiloxane emulsion composition for release paper or a release film, said composition being produced by dispersing a mixture comprising components (A) to (D) as mentioned below in water: (A) an alkenyl-group-containing diorganopolysiloxane having at least two alkenyl groups per molecule and having a viscosity of 1,000 Pa·s or less at 25°C, in an amount of 100 parts by mass; (B) an organohydrogenpolysiloxane having at least two Si-H groups per molecule and having a viscosity of 1 Pa·s or less at 25°C, in such an amount that the number of moles of an Si-H group can become 0.5 to 10 times the number of moles of an alkenyl group in the component (A); (C) a curing catalyst, in an amount of 0.01 to 3 parts by mass; and (D) a polyether-modified and/or polyol-modified organosilicon compound, in an amount of 0.01 to 10 parts by mass.
标题翻译:MEHRKOMPONENTIGE,BEI RAUMTEMPERATURHÄRTBAREORGANOPOLYSILOXANZUSAMMENSETZUNG,GEHÄRTETESPRODUKT AUS DER BESAGTEN ZUSAMMENSETZUNG UND GEFORMTES PRODUKT MIT BESAGTEMGEHÄRTETENPRODUKT
摘要:
Provided is a multicomponent room temperature-curable organopolysiloxane composition capable of providing a cured product superior in fast curability, storage stability and durability. The room temperature-curable organopolysiloxane composition comprises: (A) an alkoxysilyl-ethylene group-terminated organopolysiloxane having in each molecule at least one silyl-ethylene bond represented by the following structural formula (1) (wherein R 1 represents an alkyl group; R 2 represents a hydrocarbon group having 1 to 20 carbon atoms; a represents an integer of 1 to 3; and n represents an integer of 0 to 10.); (B) an organopolysiloxane represented by the following general formula (2) (wherein R 2 represents a hydrocarbon group having 1 to 20 carbon atoms; and m represents a number at which such organopolysiloxane exhibits a viscosity of 10 to 1,000,000 mPa·s at 25°C.); and (C) a curing catalyst.