Abstract:
ing a vulcanized elastomeric composition which includes a filler and has improved processing characteristics which process comprises vulcanizing a vulcanizable composition containing, (a) at least one halogen-free elastomer of the group consisting of natural rubber, polyisoprenes, polybutadienes, copolymers of butadiene and styrene, copolymers of butadiene and acrylonitrile, copolymers of isoprene and isobutene, copolymers of butadiene and isobutene, terpolymers of ethylene, propylene and dienes, mixtures of the said elastomers with each other, and oil-extended elastomers of the said elastomers, (b) at least one reinforcing filler, (c) sulfur, and (d) at least one vulcanizing agent consisting of a substituted sym-triazinyl disulfide having the formula
in which formula R1, R2, R3 and R4 are each a radical of the group consisting of hydrogen, phenyl, alkyl radicals containing up to 18 carbon atoms, alkenyl radicals containing up to 6 carbon atoms, cycloalkyl radicals containing at least 5 and at most 7 carbon atoms, aralkyl radicals containing at least 7 and at most 9 carbon atoms, and the said alkyl, alkenyl, cycloalkyl, phenyl and alkyl radicals that are further substituted with a radical of the group consisting of hydroxyl, cyano and alkoxy radicals containing up to 18 carbon atoms, and X is a radical of the group consisting of
in which formulae R1, R2, R3 and R4 each have the same significance as hereinbefore and R5 is a radical of the group consisting of phenyl, benzothiazolyl, carbazolyl, phenothiazinyl, alkyl radicals containing up to 18 carbon atoms, and aralkyl radicals containing at least 7 and at most 9 carbon atoms, or a mixture of one or more of the said substituted sym-triazinyl disulfides in an amount between 0.1 and 50 millimols per 100 grams of the elastomer.
Abstract:
Herbicidal composition comprising, in an agriculturally acceptable carrier, compounds of the formula
WHEREIN X is a halogen atom, lower alkoxy, lower alkyl mercapto,
BEING HYDROGEN, LOWER ALKYL, LOWER ALKENYL, OR LOWER ALKYL OR ALKENYL SUBSTITUTED WITH -OH, -OR, -SR or -CN, R being lower alkyl, and wherein one of R3 and R4 is alkyl or alkenyl having from one to eight carbon atoms and wherein R3 and R4 together with the adjoining carbon atom form a five to seven membered cycloalkyl ring; and a method of regulating growth of plants therewith.
Abstract:
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
Abstract:
A SUBSTITUTED S-TRIAZINE OF THE FORMULA:
2-X,4-R'',6-R2-S-TRIAZINE
WHEREIN X IS HALOGEN, ALKOXY, OR ALKYLMERCAPTO, ALKYL IN ALKOXY AND ALKYLMERCAPTO HAVING 1 TO 6 CARBON ATOMS; R1 IS
-NH-(CH2)N-C(-R3)(-R4)-(CH2)M-CN
WHEREIN N AND M ARE ZERO OR 1 WITH THE PROVISION THAT ONLY ONE OF N AND M MAY BE ZERO; R3 AND R4 ARE THE SAME OR DIFFERENT AND ARE STRAIGHT-CHAIN OR BRANCHED-CHAIN ALKYL HAVING FROM 1 TO 4 CARBON ATOMS AND WHEREIN EITHER R3 OR R4 MAY ALSO BE HYDROGEN; AND R2 IS
-NH-R5
WHEREIN R5 IS HYDROGEN OR STRAIGHT-CHAIN OR BRANCHEDCHAIN LOWER ALKYL. THE COMPOUNDS ARE USEFUL AS PLANT GROWTH MODIFIERS AND ARE DISTINGUISHED BY A HIGH SELECTIVITY AND A RAPID DECOMPOSITION IN THE GROUND.
Abstract:
There are prepared 1,3,5-triazines of the formula:
WHERE X and Y are SR1 where R1 is alkyl of 1 to 12 carbon atoms or aryl, CN, OR2 where R2 is hydrogen, alkyl of 1 to 12 carbon atoms, aryl, allyl or methallyl, phenyl p-phenylenediamino,
where R3 and R4 are hydrogen, alkyl of 1 to 18 carbon atoms, alkyl of 1 to 18 carbon atoms substituted with -OH, -CN or OR5 where R5 is alkyl of 1 to 18 carbon atoms, allyl, methallyl, cycloalkyl of 5 to 8 carbon atoms, aryl or benzyl, one of R3 and R4 is alpha or beta naphthyl and the other is hydrogen, R3 and R4 together with the nitrogen atom form a 5 to 8 membered ring which has from 4 to 7 -CH2- groups of which 0 or 1 hydrogen atom is or of which 2 hydrogen atoms attached to different carbon atoms are substituted by lower alkyl, R3 and R4 together with the nitrogen atom form a 5 to 8 membered ring which has from 3 to 6 -CH2groups of which 0 or 1 hydrogen atom is or of which 2 hydrogen atoms attached to different carbon atoms are substituted by lower alkyl and said ring has one hetero oxygen or sulfur atom or NR6 where R6 is hydrogen or lower alkyl, or X is chlorine, Z is hydrogen, alkyl of 1 to 8 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, phenyl, benzyl, acyl of the formula
where R7 is alkyl of 1 to 18 carbon atoms, benzyl or phenyl or the group
The compounds are useful to stabilize vulcanized and vulcanizable natural and synthetic rubber compositions.
Abstract:
Triazine derivatives for use as light and heat stabilizers and for improving fatigue properties in rubber vulcanizates have the following composition: A 1,3,5-triazine derivative of the formula
WHEREIN X is
-SR6 or chlorine, and Y is
or -SR7, R1, R2, R3 and R4 being hydrogen, alkyl of 1 to 18 carbon atoms, phenyl, allyl, or methallyl and wherein alkyl may be substituted by -OH, -OR5 (R5 being lower alkyl) or -CN and wherein R1 and R3 may also be Alpha -naphthyl or Beta -naphthyl with the provision that the R2 or R4 group which is attached to the same N must then be hydrogen; and wherein R6 and R7 are alkyl of 1 to 18 carbon atoms or a thioether group of the formula