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.
WHERE R1 AND R2 ARE ALKYL OR ARYL, R2 AND R4 ARE ALKYL WITH THE UNDERSTANDING THAT R1 AND R2 AND R3 AND R4 MAY FROM A RING, AND WHERE X IS AN INTEGER OF FROM 2 TO 6. THESE NEW COMPOSITIONS ARE USEFUL AS ACCELERATORS FOR THE SULFUR VULCANIZATION OF UNSATURATED ELASTOMERS AND MAY BE USED AS VULCANIZING AGENTS.
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:
N-ALKYL-N-ARYLHDROXYLAMINE IS DISCLOSED AS A SHORTSTOPPING AGENT IN EMULSION POLYMERIZATION AND AS AN INHIBITOR OR SUPPRESSOR OF THE UNDERSIRABLE POLYMERIZATION OF OLEFINIC MONOMERS RESULTING IN THE FORMATION OF POPCORN POLYMERS.
摘要:
A PROCESS FOR SHORT-STOPPING POLYMERIZATIONS, PARTICULARLY POLYMERIZATION PROCESSES FOR MAKING SYNTHETIC RUBBER LATICES SUCH AS BUTADIENE-STYRENE COPOLYMERS, WHERE THE SHORT-STOPPING AGENT IS A HYDROQUINONE TERTIARY AMINE OXIDE OF THE STRUCTURE
(R)M,(R3-R2-N(=O)-CH2)N-HYDROQUINONE
WHERE R IS AN ALKYL RADICAL, CHLORINE, BROMINE, NITRO OR A -(CH2NR2R3) GROUP; M IS 0 OR 1; R2 AND R2 ARE ALKYL RADICALS, B-HYDROXYALKYL RADICALS, OR OXYDIETHYLENE WHEN TAKEN TOGETHER; AND N IS 1 OR 2.
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.