摘要:
PROCESS OF RETARDING THE FORMATION OF POPCORN POLYMERS BY USE OF AN AROMATIC AMINE OXIDE OF STRUCTURE
X-(PHENYLENE)-N(=O)(-R1)2
WHERE R1 IS LOWER ALKYL, HYDROXY SUBSTITUTED LOWER ALKYL, OR A GROUP OF STRUCTURE
(2-(HO-),R2,R3-PHENYL)-CH2-
WHERE R2 IS HYDROGEN OR LOWER ALKYL, AND R3 IS A TERTIARY ALKYL GROUP, X IS HYDROGEN, HALOGEN, NITRO OR LOWER ALKYL, AND WITH THE PROVISO THAT THE TOTAL NUMBER OF CARBON ATOMS IN THE R1 GROUPS BE AT LEAST FOUR.
摘要:
A PROCESS FOR SHORTSTOPPING POLYMERIZATIONS, PARTICULARLY POLYMERIZATION PROCESSES FOR MAKING SYNTHETIC RUBBER LATICES SUCH AS BUTADIENE-STYRENE COPOLYMERS WHERE THE SHORT STOPPING AGENT IS DIETHYLANILINE N-OXIDE.
摘要:
N-benzyl-N-loweralkyl-aniline-N-oxides are disclosed having utility in retarding the formation of popcorn polymers. Representative compounds are N-methyl-N-(2-hydroxy-3-t-butyl-5methyl benzyl-aniline-N-oxide aniline-N-oxide and N-ethyl-N-(2hydroxy-5-t-amyl benzyl)-aniline-N-oxide.
摘要:
Accelerator compositions having high activity which inhibit surface bloom in vulcanizates are comprised of a mixture of a thiourea of the structure II. a polysulfide of the structure III. tetramethyl thiuram disulfide or a mixture thereof with bis-(oxydiethylene)thiuram disulfide, or
V. the zinc salt of the reaction product of ethanolamine, formaldehyde and carbon disulfide.