Pressure-sensitive adhesive composition and infrared transparent black adhesive tape, preparation method thereof and application thereof
A technology of pressure-sensitive adhesives and compositions, applied in the direction of adhesive types, ester copolymer adhesives, polyurea/polyurethane adhesives, etc., can solve the problem of breaking peel adhesion, loss of tape flexibility, and settlement etc. to achieve sufficient peel adhesion, stable peel adhesion, and high tensile breaking strength
Inactive Publication Date: 2016-10-19
TESA SE
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Problems solved by technology
This high thickness makes the membrane very rigid, resulting in a loss of flexibility in the tape, so the tape cannot conform to curved surfaces, and the tape slowly falls off due to the permanent strain of the rigid membrane
This rigid film also cannot conform to rough surfaces, or even flat surfaces partially coated or printed with some dyes
[0007] It is well known in the art that high levels of any particulate additive such as pigments can significantly reduce or completely destroy peel adhesion, and that pigments are generally incompatible with many crosslinking agents of adhesives, so those of ordinary skill in the art generally do not Think of doping a normally transparent substrate with a functional, IR transparent black adhesive
In addition, such functional adhesives have a long development cycle and high cost
In particular, obtaining sufficient homogeneity is the most challenging, as the pigments have a higher density compared to the binder, so heavier pigments settle to the bottom of the container
Method used
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[0075] A) Synthetic base polymer AC-1
[0076] Add 3.14kg acrylic acid, 58.4kg 2-ethylhexyl acrylate, 11kg methyl acrylate and 53.3kg acetone / gasoline / isopropanol (49:49:2) into a conventional 200L reactor suitable for free radical polymerization . After blowing nitrogen gas with stirring for 45 minutes, the reaction kettle was heated to 58°C and 40 g of 2,2'-azobisisobutyronitrile (AIBN) was added. The external heating bath was then raised to 75°C and the reaction was kept constant at this external temperature. After a reaction time of 1 h, 40 g of AIBN was added again. After 5h and 10h, the reaction mixture was diluted with 15kg acetone / isopropanol (90:10). After another 6h and 8h, 100g of dicyclohexylperoxydicarbonate (Perkadox Akzo Nobel). The reaction was terminated after a reaction time of 24 h and the reaction mixture was cooled to room temperature.
[0077] B) Method of manufacturing adhesive coating solution
[0078] Put 27wt% of pigment or pigment mixture and 73wt% o...
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Abstract
The invention relates to a pressure-sensitive adhesive composition and an infrared transparent black adhesive tape, a preparation method thereof and application thereof. In particular, the invention relates to the technical field of bonding, relates to an infrared transparent black pressure-sensitive adhesive, and also relates to an adhesive tape containing the pressure sensitive adhesive, especially an infrared transparent black adhesive tape. The pressure-sensitive adhesive and the adhesive tape have transparency in the visible light area of 400 to 780nm significantly lower than that in the 780 to 1000nm near infrared region. In addition, the invention relates to the preparation method and application of the pressure-sensitive adhesive and adhesive tape, such as application in many fields of optoelectronics.
Description
Technical field [0001] The present invention relates to the technical field of bonding, in particular to a pressure-sensitive adhesive composition from which an infrared transparent black pressure-sensitive adhesive can be prepared. The present invention also relates to an adhesive tape containing the pressure-sensitive adhesive, in particular to an infrared transparent black adhesive tape. In addition, the present invention relates to the preparation method and use of the pressure-sensitive adhesive composition and the adhesive tape, such as its use in the field of optoelectronics. Background technique [0002] The optical sensing device either works in a specific discontinuous wavelength range, or its working range extends over a wider electromagnetic radiation wavelength range. In order to integrate such a sensing device into the structure designed for this purpose, it is necessary to be compatible with the special materials and manufacturing techniques used in the working ra...
Claims
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IPC IPC(8): C09J133/08C09J133/00C09J183/00C09J175/04C09J153/02C09J167/00C09J11/08C09J7/02C09J7/00C09J7/38
CPCC09J11/06C09J2203/326C09J7/38
Inventor 丹尼尔·克利尔
Owner TESA SE
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