Water-based pressure sensitive adhesive composition
A technology of composition, emulsion composition, applied in the direction of adhesive types, ester copolymer adhesives, adhesives, etc., can solve the problems of high energy consumption, pollution, reduction of importance, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0173] All parts, percentages, ratios, etc. used in the examples are by weight unless otherwise indicated.
[0174] Table 1: Materials
[0175]
[0176]
[0177]
[0178]
[0179] Test Method 1: Measurement of Polymer Molecular Weight
[0180] The weight average molecular weight (Mw) of the prepared polymers was measured by size exclusion chromatography (SEC). A 50 mg solid sample of the polymer was dissolved in 10 mL of tetrahydrofuran (THF inhibited with 250 ppm of butylated hydroxytoluene (BHT)). The resulting solution was filtered through a 0.45 micron syringe filter and analyzed by SEC. Operate the SEC system under the following conditions:
[0181] Sample injection: 10 μl
[0182] Mobile phase: THF, EMD OMNISOLV grade or equivalent (no inhibitor)
[0183] Flow rate: 1.0ml / min
[0184] System: Waters e2695 pump / autosampler
[0185] Detector: Waters 2414 evaporative light scattering detector (70°C drift tube, 30psi (about 207kPa) nitrogen flow, 30°C ne...
preparation example 1
[0217] Preparation Example 1 (PE-1)
[0218] In the first step of polymerization, 2 kg of a mixture consisting of 300 g of IOA, 1600 g of IBOA, and 100 g of AA, and 2 g of IRGANOX 1010, 50 g of chain transfer, were introduced into a 5 liter stainless steel reactor agent IOTG, 0.4 grams of MEHQ, and 0.12 grams of VAZO 52. The reactor was sealed, deoxygenated by purging with nitrogen, and then maintained under a nitrogen pressure of approximately 5 psig. In a first step the reaction mixture is heated to 60° C. and reacted adiabatically. The temperature peaked at 149°C. When the reaction was complete, the mixture was cooled to below 50 °C.
[0219]The various initiators (0.36 g VAZO 52, 0.08 g VAZO 67, 0.12 g VAZO 88, 0.12 g LUPERSOL 101, and 0.16 g LUPERSOL 130) dissolved in a minimum amount of ethyl acetate were then added to the reaction product in the first step ) solution and 25 grams of IOTG. The reactor was sealed and deoxygenated by purging with nitrogen, and then ...
preparation example 2
[0224] Preparation Examples 2, 3 and 4 (PE-2, PE-3, PE-4) and Comparative Preparation Example 2 (CPE-2)
[0225] Polymers PE-2, PE-3, PE-4 and CPE-2 were prepared using the same procedure as CPE-1 except using the compositions listed in Table 2 which includes the resulting weight average molecular weight and Brookfield viscosity value.
PUM
| Property | Measurement | Unit |
|---|---|---|
| glass transition temperature | aaaaa | aaaaa |
| glass transition temperature | aaaaa | aaaaa |
| molecular weight | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More