Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A process is provided for improving the resistance to deterioration when exposed to weather and the adherence to other materials of polypropylene, particularly in the form of moldings, which comprises subjecting a surface of polypropylene to the action of activated oxygen gas at a temperature below about 100.degree. C. in the presence of an N-alkyl or N-acyl 2,2,6,6-tetramethyl piperidyl compound for a time sufficient to improve such weather resistance and adherence.

Abstract: A process is provided for improving the resistance to deterioration when exposed to weather and the adherence to other materials of polypropylene, particularly in the form of moldings, which comprises subjecting a surface of polypropylene to the action of activated oxygen gas at a temperature below about 100.degree. C. in the presence of an N-alkyl or N-acyl 2,2,6,6-tetramethyl piperidyl compound for a time sufficient to improve such weather resistance and adherence.

Abstract: Stabilizers for synthetic polymer compositions are provided which are poly(2,2,6,6-tetramethyl piperidyl amino)-1,3,5-triazines having the formula: ##STR1## in which: R 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 the one to about twelve carbon atoms; and oxyl;X and Y are each selected from the group consisting of ##STR2## wherein: R.sub.1 is selected from the group consisting of alkyl, hydroxylalkyl 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.2 and R.sub.3 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.2 and R.sub.

Abstract: Stabilizers for synthetic polymer compositions are provided which are poly(2,2,6,6-tetramethyl piperidyl amino)-1,3,5-triazines having the formula: ##STR1## in which: R 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;X and Y are each selected from the group consisting of ##STR2## wherein: R.sub.1 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.2 and R.sub.3 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.2 and R.sub.

Abstract: A synthetic resin composition comprising a synthetic resin and a special phenolic polymer is stabilized for a long period of time and excellent in heat resistance and light resistance.

Abstract: Poly-2,2,6,6-tetramethyl piperidyl amino spiro glycol ether-1,3,5-triazines are provided having the formula: ##STR1## in which: R is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms, hydroxyalkyl having from two to about six carbon atoms; epoxyalkyl having from three to about eight carbon atoms; alkylaryl having from seven to about eighteen carbon atoms; acyl having from two to about eight carbon atoms; and oxyl;each of R.sub.1 and R.sub.2 is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms; and alkylene forming a heterocyclic ring including the nitrogen atom in the ring and having from four to seven carbon atoms and no or one oxygen atom; andn is a number from 2 to about 40 representing the average number of units enclosed by the brackets;and synthetic resin compositions containing the same as light stabilizers.

Abstract: Polyphenylene sulfide resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol) having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.

Abstract: 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.

Abstract: Polycarbonate resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol)having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.

Abstract: Bis-(2,2,6,6-tetramethyl-piperidyl)diimides are provided, having the formula: ##STR1## in which R is selected from the group consisting of hydrogen; oxyl; alkyl and alkenyl having from one to about eighteen carbon atoms; epoxy and hydroxyalkyl having from two to about eight carbon atoms; acyl having from two to about eight carbon atoms; and phenalkyl having from seven to about twelve carbon atoms; and Z is a tetravalent aliphatic or cycloaliphatic hydrocarbon group having from two to about eighteen carbon atoms; and stabilizer and synthetic polymer compositions containing such diimides having improved resistance to deterioration when exposed to light.

Abstract: Vinyl benzyl 2,2,6,6-tetramethyl piperidines are provided, having the formula: ##STR1## wherein: R is selected from the group consisting of hydrogen; oxyl; acyl and alkyl having from one to about eighteen carbon atoms; ##STR2## in which Y is --O-- or --N(R.sub.2)--, R.sub.1 is alkyl having from one to about eighteen carbon atoms and R.sub.2 is hydrogen or alkyl having from one to about eighteen carbon atoms.

Abstract: 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 consistng 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.

Abstract: 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.

Abstract: Poly-2,2,6,6 tetramethyl piperidyl amino spiro glycol ether-1,3,5-triazines are provided having the formula: ##STR1## in which: R is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms, hydroxyalkyl having from two to about six carbon atoms; epoxyalkyl having from three to about eight carbon atoms; alkylaryl having from seven to about eighteen carbon atoms; acyl having from two to about eight carbon atoms; and oxyl;each of R.sub.1 and R.sub.2 is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms; and alkylene forming a heterocyclic ring including the nitrogen atom in the ring and having from four to seven carbon atoms and no or one oxygen atom; andn is a number from 2 to about 40 representing the average number of units enclosed by the brackets; and synthetic resin compositions containing the same as light stabilizers.

Abstract: 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.

Abstract: N,N',N"-tris((2,2,6,6-tetramethyl-4-piperidyl)triazinyl) undecane triamines are provided having the formula: ##STR1## wherein: X is selected from the group consisting of ##STR2## in which: R is selected from the group consisting of hydrogen; oxyl O'; alkyl having from one to about eighteen carbon atoms; hydroxyalkyl having from two to about eight carbon atoms; epoxyalkyl having from three to about eight carbon atoms; alkaryl having from seven to about twelve carbon atoms; and acyl having from one to about eight carbon atoms;Y is O or NR.sub.2 ;R.sub.1 is alkyl having from one to about six carbon atoms; andR.sub.2 is hydrogen or alkyl having from one to about eighteen carbon atoms;as well as stabilizer compositions and stabilized synthetic polymer compositions containing the same having improved resistance to deterioration upon exposure to light.