摘要:
N,N'-disubstituted sulfonyl hydrazine with the following structural formula are disclosed:R(SO.sub.2 NR.sup.1 NHR.sup.2).sub.nwherein the R.sup.1 and R.sup.2 groups are the same or different and are either --COOR.sup.3 or --CONHR.sup.4. These novel compounds are useful as high temperature blowing agents for gas-expandable polymers.
摘要翻译:公开了具有以下结构式的N,N'-二取代磺酰肼:R(SO 2 NR 1 NR 2)n,其中R 1和R 2相同或不同,并且是-COOR 3或-CONHR 4。 这些新型化合物可用作气体膨胀聚合物的高温发泡剂。
摘要:
Novel blowing agents are disclosed comprising 3,3'-carbonylbis(organo carbazates). The organo group may be alkyl, cycloalkyl, aryl or aralkyl moieties. In the preferred embodiment the organo group is an alkyl group selected from the group consisting of methyl, isopropyl, secondary butyl or tertiary butyl. The blowing agents find utility in the preparation of expanded organoplastic materials such as rubbers, thermosetting resins and thermoplastic resins.
摘要:
Novel blowing agents are disclosed comprising 3,3'-carbonylbis(organo carbazates). The organo group may be alkyl, cycloalkyl, aryl or aralkyl moieties. In the preferred embodiment the organo group is an alkyl group selected from the group consisting of methyl, isopropyl, secondary butyl or tertiary butyl. The blowing agents find utility in the preparation of expanded organoplastic materials such as rubbers, thermosetting resins and thermoplastic resins.
摘要:
A process for preparing hydrazodicarbonamide directly from a ketazine and urea in water without any acid catalyst according to the following reaction is disclosed. ##EQU1## wherein the R groups may be the same or different.
摘要翻译:公开了根据以下反应直接从酮连氮和尿素在水中制备肼基二酰胺的方法,没有任何酸催化剂。 R ANGLE C = N-N = C ANGLE + 2 H2N-CO-NH2 + 2H2O RR→H2N-CO-NHNH-CO-NH2 + R-CO-R + 2NH3其中R基团可以相同或不同。
摘要:
Disclosed are tris-substituted 1,3,5-triazine compounds having at least one (N-alkyl-p-phenylenediamino) group on the triazine ring. The preferred compositions are tri-substituted with the alkyl p-phenylenediamino group. The preferred compounds may be prepared by reacting N-alkylphenylenediamine with a cyanuric halide.
摘要:
A composition of matter is disclosed that comprises a compound of the formula AnR, wherein: A is R1 is hydrocarbyl; m is 0 or 1; n is 1, 2, or 3; R is selected from the group consisting of: mono-, di-, and trivalent aliphatic groups; mono-, di-, and trivalent aromatic groups; five- and six-membered heterocyclic rings comprising n carbon atoms bonded to A, at least one nitrogen atom, and, optionally, at least one sulfur atom; and wherein R2 and R3 are independently selected from the group consisting of hydrogen and hydrocarbyl. These compounds are useful as coupling agents in filled elastomer compositions.
摘要翻译:公开了一种物质组合物,其包含式A N n R的化合物,其中:A为R 1为烃基; m为0或1; n为1,2或3; R选自:单 - ,二 - 和三价脂族基团; 单,二和三价芳基; 包含与A键合的n个碳原子,至少一个氮原子和任选地至少一个硫原子的五元和六元杂环; 并且其中R 2和R 3独立地选自氢和烃基。 这些化合物可用作填充弹性体组合物中的偶联剂。
摘要:
Disclosed are novel 2,4,6 substituted pyrimidines where the substituents may be the same or different groups. At least one substituent must be N-alkyl parphenylenediamino, and the other substituents may be various radicals containing sulfur, oxygen or nitrogen or hydrogen or alkyl groups. The compounds are useful as antioxidants and antiozonants for unsaturated compounds and polymers.
摘要:
Novel phenolically substituted esterbisamides as antioxidants useful for the protection of organic materials such as synthetic and natural rubbers, plastics and petroleum products against oxidative degradation.
摘要:
There is disclosed a process for the preparation of sulfenimides comprising: mixing, in a hydrocarbon solvent, a sulfenamide of the formula with an aldehyde of the formula R4CHO where X is a sulfur atom, a —C═N— group, or a —C═C— group, R1 and R2 are independently selected from the group consisting of hydrogen, alkyl, and aryl or may be joined to form a saturated or unsaturated ring or aromatic ring, R3 is alkyl or cycloalkyl, and R4 is a hydrocarbon radical wherein the carbon bearing the aldehyde function is bonded only to other carbon atoms, a substituted or unsubstituted aryl ring, or a heteroaromatic ring; and heating the mixture at a temperature and for a period of time sufficient to convert the sulfenamide to the sulfenimide.
摘要:
There is disclosed a process for the preparation of sulfenimides comprising: mixing, in a hydrocarbon solvent, a sulfenamide of the formula with an aldehyde of the formula R4CHO where X is a sulfur atom, a —C═N— group, or a —C═C— group, R1 and R2 are independently selected from the group consisting of hydrogen, alkyl, and aryl or may be joined to form a saturated or unsaturated ring or aromatic ring, R3 is alkyl or cycloalkyl, and R4 is a hydrocarbon radical wherein the carbon bearing the aldehyde function is bonded only to other carbon atoms, a substituted or unsubstituted aryl ring, or a heteroaromatic ring; and heating the mixture at a temperature and for a period of time sufficient to convert the sulfenamide to the sulfenimide.