摘要:
The invention relates to a multilayer product comprising a first layer (A), a second layer (B), a third layer (C), and a fourth layer (D). The first layer (A) is a scratch-resistant protective layer having a minimum extinction of 0.3 at 340 nm, the second layer (B) is an alkyl acrylate layer having a minimum extinction of 2 at 340 nm, and the third layer (C) and the fourth layer (D) contain a UV-stabilized polycarbonate. The invention also relates to a method for manufacturing the multilayer product.
摘要:
The invention relates to a multilayer product comprising a first layer (A), a second layer (B), a third layer (C), and a fourth layer (D). The first layer (A) is a scratch-resistant protective layer having a minimum extinction of 0.3 at 340 nm, the second layer (B) is an alkyl acrylate layer having a minimum extinction of 2 at 340 nm, and the third layer (C) and the fourth layer (D) contain a UV-stabilized polycarbonate. The invention also relates to a method for manufacturing the multilayer product.
摘要:
The present invention relates to a multilayer product comprising at least one first, second, and third layer, wherein the first layer contains polycarbonate, the second layer contains a UV protection layer on the basis of alkyl acrylate containing two triazine compounds as UV stabilizers, and the third layer is a scratchproof layer also containing UV absorbers. The invention further relates to the production and use of said multilayer products and of products, such as laminations, that contain said multilayer products.
摘要:
An embodiment of the present invention relates to a composition comprising a) at least one transparent thermoplastic material; b) at least one inorganic IR absorber comprising at least one boride compound present in an amount of from 0.0015 wt. % to 0.015 wt. %, calculated as solids content of boride in the total polymer composition; and c) at least one inorganic, nano-scale pigment present in an amount of from 0.0008 wt. % to 0.0035 wt. %, based on the total composition; and d) optionally further additives.
摘要:
A lighting unit includes a reflector, two or more light sources, and at least one diffuser plate. The light sources have a gap of at least ≧30 mm from each other, and the gap between the light sources and the diffuser plate is ≦25 mm. The diffuser plate comprises a lenticular plate. An advanced compound parabolic concentrator scatter film is arranged on the lenticular plate, and a further scatter film is arranged on the advanced compound parabolic concentrator scatter film.
摘要:
A multi-layered product in the form of sheet, film or a three dimensional molded article is disclosed. The product comprised a first layer (A) having a thickness of 1 μm to 2 mm containing polyalkyl (meth)acrylate and 0.01 to 20 percent relative to the weight of said first layer of a UV stabilizer and a second layer (B) that contains polycarbonate. The stabilizer conforms to formula (I) wherein X denotes OR1; OCH2CH2OR1; OCH2CH(OH)CH2OR1 or OCH(R2)COOR3, R1 is branched or unbranched C1-C13 alkyl, C2-C20 alkenyl, C6-C12 aryl or —CO—C1-C18 alkyl, R2 is H or branched or unbranched C1-C8 alkyl, and R3 is C1-C12 alkyl; C2-C12alkenyl or C5-C6 cycloalky. The product is characterized by its optical transparency and resistance to yellowing and is most suitable for glazing applications.
摘要:
The invention relates to a method for producing double or multilayer ferroelectret with defined cavities by: structuring at least one first surface of a first polymer film (1) forming a height profile, applying ate least one second polymer film (5, 1′) to the structured surface on the first polymer film formed in step a), joining the polymer films (1, 1′, 5) to give a polymer film composite with the formation of cavities (4, 4′) and electrically charging of the inner surfaces of the cavities (4, 4′) formed in step c) with opposing electrical charges. The invention further relates to ferroelectret multilayer composites, optionally produced by said method, comprising at least two polymer films, arranged one over the other and connected to each other, wherein cavities are formed between the polymer films. A piezoelectric element comprising a said ferroelectret multilayer composite is also disclosed.
摘要:
A multi-layered product in the form of sheet, film or a three dimensional molded article is disclosed. The product comprised a first layer (A) having a thickness of 1 μm to 2 mm containing polyalkyl (meth)acrylate and 0.01 to 20 percent relative to the weight of said first layer of a UV stabilizer and a second layer (B) that contains polycarbonate. The stabilizer conforms to formula (I) wherein X denotes OR1; OCH2CH2OR1; OCH2CH(OH)CH2OR1 or OCH(R2)COOR3, R1 is branched or unbranched C1-C13 alkyl, C2-C20 alkenyl, C6-C12 aryl or —CO—C1-C18 alkyl, R2 is H or branched or unbranched C1-C8 alkyl, and R3 is C1-C12 alkyl; C2-C12alkenyl or C5-C6 cycloalky. The product is characterized by its optical transparency and resistance to yellowing and is most suitable for glazing applications.
摘要:
Compositions, suitable for coating surfaces, methods for their preparation and for coating surfaces therewith, where said compositions comprise: (a) 100,000 parts by weight of a primer composition comprising a binder material (a1), a primer solvent (a2) and a UV absorber (a3), wherein the primer composition is suitable as an adhesion-promoting agent between a thermoplastic substrate and a siloxane-based top coat; (b) 0 to 900,000 parts by weight of a solvent, and (c) 1 to 3000 parts by weight of a compound according to the general formula (I): wherein X represents a moiety selected from the group consisting —OR6, —OCH2CH2OR6, —OCH2CH(OH)CH2OR6 and —OCH(R7)COOR8, wherein R6 represents a branched or unbranched C1-C13 alkyl, C2-C20 alkenyl, C6-C12 aryl or —CO—C1-C18 alkyl, R7 represents H or a branched or unbranched C1-C8 alkyl, and R8 represents a C1-C12 alkyl, a C2-C12 alkenyl or a C5-C6 cycloalkyl, and wherein the composition has a viscosity of 40 s to 140 s measured in accordance with DIN EN ISO 2431 at 23° C. and with a 2 mm cup.
摘要:
Compositions, suitable for coating surfaces, methods for their preparation and for coating surfaces therewith, where said compositions comprise: (a) 100,000 parts by weight of a primer composition comprising a binder material (a1), a primer solvent (a2) and a UV absorber (a3), wherein the primer composition is suitable as an adhesion-promoting agent between a thermoplastic substrate and a siloxane-based top coat; (b) 0 to 900,000 parts by weight of a solvent, and (c) 1 to 3000 parts by weight of a compound according to the general formula (I): wherein X represents a moiety selected from the group consisting —OR6, —OCH2CH2OR6, —OCH2CH(OH)CH2OR6 and —OCH(R7)COOR8, wherein R6 represents a branched or unbranched C1-C13 alkyl, C2-C20 alkenyl, C6-C12 aryl or —CO—C1-C18 alkyl, R7 represents H or a branched or unbranched C1-C8 alkyl, and R8 represents a C1-C12 alkyl, a C2-C12 alkenyl or a C5-C6 cycloalkyl, and wherein the composition has a viscosity of 40 s to 140 s measured in accordance with DIN EN ISO 2431 at 23° C. and with a 2 mm cup.