Cobaltic bearing polymeric compositions
A composition, polymer technology, used in transportation and packaging, thin material handling, etc., can solve problems such as increased toxicity
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Embodiment 1
[0035] The equipment used for the synthesis consisted of a 2-L capacity round-bottom glass reactor equipped with a stirrer, a heating device and a water-cooled condenser, and purged with nitrogen.
[0036] join in:
[0037] - 350g neodecanoic acid; and,
[0038] - 590 g dimerized fatty acid.
[0039] The mixture was stirred under nitrogen and the temperature was raised to 120°C. 190 g of cobalt hydroxide were added in small portions over a period of 6 h, during which time the reaction temperature was slowly increased to 160°C to 170°C to keep the viscosity within the range where the stirrer could function properly. The reaction mixture was maintained at 180 °C for 2 h to complete the reaction.
[0040] The product obtained was a homogeneous dark blue melt. It is poured and cooled to a brittle solid, which is then ground or granulated.
[0041] The melting point by the Ball & Ring method was 120°C. The product contained 11.2% cobalt (by weight). The average molecular wei...
Embodiment 2
[0043] Add in the device similar to embodiment 1:
[0044] - 576g tall oil fatty acid; and,
[0045] - 98 g maleic anhydride.
[0046] The mixture was stirred while warming to 90°C. Then add:
[0047] - 40g water.
[0048] The reaction mixture was heated to about 100°C for 30 minutes. Then, in small portions, add:
[0049] - 190 g cobalt hydroxide.
[0050] After the first addition of 50 g of cobalt hydroxide, the temperature was slowly raised to 120° C. to distill off excess and reaction water. Addition was then continued for 6 h, increasing the temperature as needed to maintain stirring, reaching about 250°C when the last addition was made. This temperature was maintained for an additional 2 h.
[0051] The product obtained was a dark blue melt which was poured and cooled to a dark blue brittle solid product. It can be ground into powder or granulated.
[0052] Its melting point is 220°C and its cobalt concentration is 14.6%. The average molecular weight is 2800. ...
Embodiment 3
[0054] Add in the device similar to embodiment 1:
[0055] - 365g neodecanoic acid;
[0056] - 490 g dimerized fatty acid; and,
[0057] - 15.25 g glacial acetic acid.
[0058] The ingredients were mixed and the temperature was raised to 80°C. Then, in small portions:
[0059] - 180g cobalt hydroxide.
[0060] During the cobalt hydroxide addition, the temperature was raised as required for the proper operation of the stirrer. Finally, the temperature reached 165°C. The reaction mixture was kept at this temperature for 1 h.
[0061] After that, slowly join:
[0062] - 39.40 g tributyl orthoborate.
[0063] The temperature was slowly raised to 230°C and held for 1 h.
[0064] The resulting product was a dark blue melt which was decanted and cooled to a dark blue brittle solid product. It can be ground into powder or granulated.
[0065] Its melting point is 150°C, and the cobalt concentration is 11.4%. The average molecular weight was 4900.
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Abstract
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