Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1988-01-21
1989-05-16
Higel, Floyd D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
5253333, 525376, 525910, 525912, 5262181, 5262192, 526346, 526347, 5263472, 528396, 534573, 534587, 534838, 534886, 502167, C08F 404, C08F 1208, C07C10702
Patent
active
048310964
ABSTRACT:
Mixtures of azolakanes of varying thermal stabilities at least one of which is an unsymmetrical azoalkane (R--N.dbd.N--R'), are prepared by reacting 4 equivalents of a mixture of two or more primary alkyl, cycloalkyl or aralkylamines with 1 equivalent of sulfuryl chloride in an inert solvent and oxidizing the resulting mixture of sulfamide products with basic bleach. The unsymmetrical azoalkanes can be separated from the symmetrical azoalkanes by a variety of conventional techniques. The azoalkane mixtures are excellent polymerization initiators for vinyl monomers and curing agents for unsaturated polyester resins.
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Ohme et al. Justus Liebigs Ann. Chem., vol. 713, pp. 74-86, (1968).
Overberger et al., J. Amer. Chem. Soc., vol. 80, pp. 6562-6568 (1958).
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Higel Floyd D.
Pennwalt Corporation
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