摘要:
A radiation sensitizer of the present invention contains a particular nitrotriazole compound as an active ingredient and accelerates inactivation of intractable hypoxic cells in a malignant tumor by irradiation.
摘要:
Polymers of diallyl 4-(2,2,6,6-tetramethyl piperidyl) amines are provided, having a molecular weight within the range from about 800 to about 20,000, and derived from the monomer ##STR1## wherein: R is selected from the group consisting of hydrogen, oxyl, alkyl and hydroxyalkyl having from one to about eighteen carbon atoms; alkylaryl having from seven to about eighteen carbon atoms; epoxy alkyl having from three to about eighteen carbon atoms and acyl having from two to about eighteen carbon atoms, as well as stabilized synthetic resin compositions having an improved resistance to deterioration by light and containing such a polymer.
摘要:
Polymers of diallyl amino-4-(2,2,6,6-tetramethyl piperidyl) carboxylic acid esters and amides are provided, having a molecular weight within the range from about 800 to about 20,000, and derived from a monomer having the formula: ##STR1## wherein: R is alkylene or alkyleneoxy having from one to about six carbon atoms and m is 0 or 1;R.sub.1 is selected from the group consisting of hydrogen; oxyl; alkyl and hydroxyalkyl having from one to about eighteen carbon atoms; alkylaryl having from seven to about eighteen carbon atoms; epoxy alkyl having from three to about eighteen carbon atoms; and acyl having from two to about eighteen carbon atoms; andY is selected from the group consisting of ##STR2## where R.sub.2 and R.sub.3 are hydrogen or alkyl having from one to about eight carbon atoms and n is 0 or 1;Z is selected from the group consisting of ##STR3## in which R.sub.4, R.sub.5 and R.sub.6 are selected from the group consisting of hydrogen; alkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about twelve carbon atoms; and aryl having from six to about thirty carbon atoms; as well as stabilized synthetic resin compositions having an improved resistance to deterioration by light and containing such a polymer.
摘要:
Polymers of diallyl-1,3,5-triazino-4-(2,2,6,6-tetramethyl piperidyl) amines are provided, having a molecular weight within the range from about 800 to about 20,000, and derived from the monomer: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen; oxyl; alkyl and hydroxyalkyl having from one to about eighteen carbon atoms; alkylaryl having from seven to about eighteen carbon atoms; epoxy alkyl having from three to about eighteen carbon atoms; and acyl having from two to about eighteen carbon atoms;Y is selected from the group consisting of ##STR2## where R.sub.2 and R.sub.3 are hydrogen or alkyl having from one to about eight carbon atoms and n is 0 or 1;Z is selected from the group consisting of ##STR3## in which R.sub.4, R.sub.5 and R.sub.6 are selected from the group consisting of hydrogen; alkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about twelve carbon atoms; and aryl having from six to about thirty carbon atoms; as well as stabilized synthetic resin compositions having an improved resistance to deterioration by light and containing such a polymer.
摘要:
The extracorporeal blood circulating apparatus of the present invention includes: a closed-type venous reservoir having a blood storage chamber and a volume adjusting chamber that are disposed adjacently by partitioning a closed space formed by a housing; an adjusting liquid tank for storing an adjusting liquid that is connected to the volume adjusting chamber; and a blood pump that is connected to the blood storage chamber. In the housing, an inflow port for allowing blood to inflow and an outflow port for allowing blood to outflow are provided so as to communicate with the blood storage chamber, and an adjusting port for injecting and ejecting the adjusting liquid is provided so as to communicate with the volume adjusting chamber. The blood pump is connected via the outflow port, and the adjusting liquid tank is connected via the adjusting port. The closed space is partitioned by a flexible septum member so as to form the blood storage chamber and the volume adjusting chamber, and the adjusting liquid tank and the adjusting port are connected by a conduit member having a configuration that can adjust a flowing amount. Control of a blood storage amount to be most appropriate and easy adjustment are possible throughout all steps from before starting an extracorporeal blood circulation to terminating it.
摘要:
A piperidine compound represented by the following general formula (I) and a stabilized polymeric material composition containing said compound.A[(O-X).sub.n NH-Y].sub.m (I)(wherein A represents a residue formed by eliminating m hydroxyl groups from a polyhydric (tri- to hexa-hydric) alcohol; X represents an alkylene group having 2 to 4 carbon atoms; n is an integer of from 1 to 15; m is an integer of from 3 to 6; and Y represents a group: ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl, alkoxy or acyl group having 1 to 18 carbon atoms or an oxygen free radical; and R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 18 carbon atoms.)
摘要翻译:由以下通式(I)表示的哌啶化合物和含有所述化合物的稳定的聚合物材料组合物。 A [(OX)nNH-Y] m(I)(其中A表示通过从多羟基(三至六元)醇中除去m个羟基而形成的残基; X表示具有2至4个碳原子的亚烷基; n为1〜15的整数,m为3〜6的整数,Y表示下式的基团:其中,R 1表示氢原子,碳原子数1〜18的烷基,烷氧基或酰基,或 氧自由基; R 2表示氢原子或碳原子数1〜18的烷基。
摘要:
Stabilizers for synthetic polymer compositions are provided which are hydrocarbyl(polyphenol)-poly(2,2,6,6-tetramethyl-piperidyl-1,3,5-triazines) having the formula: ##STR1## in which R is a hydrocarbyl group having the valence n;R.sub.1 is selected from the group consisting of hydrogen; alkyl, alkenyl, cycloalkyl, hydroxyalkyl and alkoxy having from one to about twelve carbon atoms; acyl having from about one to about twelve carbon atoms; and oxyl;Y is selected from the group consisting of ##STR2## wherein R.sub.4 is lower alkyl having from one to about six carbon atoms; R.sub.5 is selected from the group consisting of hydrogen; alkyl, hydroxy alkyl and alkoxy having from one to about twelve carbon atoms; and cycloalkyl having from three to about twelve carbon atoms; and ##STR3## X is selected from the group consisting of ##STR4## wherein: R.sub.6 is selected from the group consisting of alkyl, hydroxyalkyl and alkylenealkoxy having from one to about twelve carbon atoms; cycloalkyl having from three to about twelve carbon atoms; and aryl having from six to about eighteen carbon atoms;R.sub.7 and R.sub.8 are selected from the group consisting of hydrogen; alkyl having from one to about twelve carbon atoms; cycloalkyl having from three to about twelve carbon atoms; and aryl having from six to about eighteen carbon atoms; and R.sub.7 and R.sub.8 taken together as a five to six member ring including the nitrogen atom in the ring;R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen and lower alkyl having from one to about six carbon atoms; andn is a number from 2 to 4.
摘要:
Cyclic bis and tris phosphites are provided having the formula: ##STR1## wherein: A is selected from the group consisting of sulfur; oxygen; alkylidene having from one to about six carbon atoms; cycloalkylidene having from three to about eight carbon atoms; and phenyl and alkyl phenyl alkylidene having from seven to about fourteen carbon atoms;R is selected from the group consisting of alkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eight carbon atoms; and phenalkylidene and alkyl phenalkylidene having from seven to about twelve carbon atoms;R.sub.1 is selected from the group consisting of hydrogen; alkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eight carbon atoms; and phenalkylidene and alkyl phenalkylidene having from seven to about twelve carbon atoms;n is 2 or 3;R.sub.2 is ##STR2## wherein: m=0 when n is 2; and 1 when n is 3;R.sub.3, R.sub.4, R.sub.5, R.sub.6 are hydrogen or lower alkyl; and, when the rings are aromatic, at least two of R.sub.3, R.sub.4, R.sub.5 and R.sub.6 in each ring is lower alkyl; andY is alkylidene having from three to about six carbon atoms; or ##STR3## the rings in R.sub.2 being saturated or aromatic, and, when the rings are aromatic, at least two of R.sub.3, R.sub.4, R.sub.5 and R.sub.6 in each ring is lower alkyl, as well as stabilized synthetic resin compositions containing such phosphites.
摘要:
Poly(piperidylamine) alkanes represented by the Formula (I) or (II): ##STR1## and synthetic resin compositions having improved resistance to deterioration by light containing such compounds.