Abstract: A composition of matter comprising neoalkoxy compounds having the following formula: ##STR1## wherein M is titanium or zirconium, R, R.sup.1 and R.sup.2 are each a monovalent alkyl, alkenyl, alkynyl, aralkyl, aryl or alkaryl group having up to twenty carbon atoms or a halogen or ether substituted derivative thereof, and, in addition, R.sup.2 may also be an oxy derivative or an ether substituted oxy derivative of said groups; A, B, and C are each a monovalent aroxy, thioaroxy, diester phosphate, diester pyrophosphate, oxyalkylamino, sulfonyl or carboxyl containing up to 30 carbon atoms; and a+b+c=3.

Abstract: Thermoplastic blends of a polyphenylene ether resin, alone or together with supplementary polymers, and a diphosphite compound or compounds are described. The blends exhibit good processability and initial color and are moldable into articles of various shapes and sizes.

Abstract: YMedical instruments, e.g., syringes, which can be sterilized by gamma irradiation and which are made of polyolefin resins (preferably a polypropylene polymer) which are resistant to gamma irradiation. The polyolefin is compounded with a specific hindered amine and a specific phenol or its phosphorous ester, each in an amount of from 0.01 to 1 part by weight per 100 parts of the polyolefin.

Abstract: About equimolar ethylene/chlorotrifluoroethylene copolymer compositions are stabilized against thermal degradation by incorporating therein a stabilizing system comprising (a) a phosphite of an organic plyhydric phenol; (b) a salt of a carboxylic acid and a metal of Group II of the Periodic Table; and (c) an ester of a (4-hydroxy-5-alkylphenyl)alkanoic acid.

Abstract: Disclosed is an adhesive coating material for a hard tissue, which comprises (1) a polymer having an acid value of 30 to 700 and including in recurring units a hydrophobic group and two carboxyl (--COOH) groups or one carboxylic anhydride ##STR1## group bonded to the polymer, said carboxyl groups or carboxylic anhydride group being bonded to adjacent carbon atoms, and (2) a polymerizable vinyl compound or a mixture of said polymerizable vinyl compound and an organic titanate compound.

Abstract: A phenolic phosphite antioxidant for use alone in polyolefins or in admixture with synergists, phenolic/phosphite antioxidants, and the like. The adduct formed by reacting a phosphorus trihalide, preferably PCl.sub.3, with 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is useful for antioxidant activity in organic materials.

Abstract: A composition particularly adapted for use in a rotational moulding process is disclosed. The composition comprises polyethylene having a density of 0.920-0.970 g/cm.sup.3 and a melt index of 10-35 dg/min., 0.3-1.3% by weight of a bis(tert. alkyl peroxyalkyl) benzene, 0.2-1.5% by weight of a co-curing agent selected from triallyl cyanurate, triallyl isocyanurate and 1,2-polybutadiene, 0.01-0.05% by weight of a hindered phenolic antioxidant and 0.01-0.2% by weight of a secondary antioxidant. The preferred secondary antioxidant is tris di(tert.-butyl phenyl) phosphite. The composition may be used in for example, the moulding of tanks, barrels, containers and the like.

Abstract: Polymeric hindered secondary phosphonates which have the repeating structural unit of the formula ##STR1## where R.sub.1 and R.sub.2 are independently alkyl, cycloalkyl, aralkyl or alkaryl, A is alkylene, E is alkylene or phenylene, p is 0 or 1 and n is 2 to 50 are useful as stabilizers for organic polymers to counteract the degradative effects of heat, light and air.

Abstract: Irradiation-sterilizable medical articles molded from a propylene polymer composition in which stabilizers are incorporated. Said composition comprises from 0.01 to 0.4 part by weight of each of a specific hindered amine and a specific phenol or its phosphite ester compound incorporated per 100 parts by weight of a propylene polymer with a weight-average molecular-weight to number-average molecular-weight ratio of 5 or below. The above-mentioned composition may additionally contain a sorbitol derivative as the nucleating agent. Medical articles produced from said composition by molding, for example, syringes are suitable for irradiation sterilization. Said medical articles when irradiated undergo little reduction in quality of the material and are accompanied by little bleeding or degradation of the incorporated stabilizers and nucleating agent.

Abstract: (1) A graft copolymer latex obtained by the copolymerization of a rubbery diene polymer latex with an aromatic vinyl monomer and an acrylic monomer is mixed with (2) a copolymer latex having a glass transition point of -40.degree. to 10.degree. C. and a volume-average particle size of at least 0.5.mu. obtained by the copolymerization of an olefin with a vinyl ester of a fatty acid while they are maintained in the form of latex to precipitate a solid resin, whereby a thermoplastic resin composition is obtained. The total solid resin contains at least 11 wt. % of the rubbery diene polymer and at least 1 wt. % of the copolymer of olefin/vinyl ester of fatty acid.

Abstract: Phenolic-phosphite antioxidants for use alone in polyolefins or in admixture with synergists, phenolic/phosphite antioxidants, and the like. The adduct formed by reacting a phosphorus trihalide, preferably PCl.sub.3, with 1,3,5-trimethyl-2,4,6-tris(3',5'-di-tert-butyl-4'-hydroxybenzyl)benzene, e.g., is useful for antioxidant activity in organic materials. Various other phenolic adducts also show antioxidant activity. The adducts are formed by reacting PCl.sub.3, e.g., with a large phenolic compound having three or more phenolic moieties. The adducts contain components which are noncyclic with respect to phosphite moieties.

Abstract: A polyphenylene ether resin composition comprising(A) a polyphenylene ether resin,(B) at least one compound selected from the group consisting of 2-(o-hydroxyphenyl)benzotriazoles represented by the following formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and each represents a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group, an alkoxycarbonylalkyl group, an aryl group or an aralkyl group, and X represents a halogen atom,and 2-hydroxybenzophenones represented by the following formula (II) ##STR2## wherein R.sup.5 represents a hydrogen atom, a hydroxyl group or an alkoxy group, R.sup.6 represents a hydrogen atom or a hydroxyl group, R.sup.7 represents a hydrogen atom or a sulfonic acid group, and R.sup.8 represents a hydrogen atom, an alkyl group or an aromatic acyl group,(C) an organic phosphite, and(D) a sterically hindered phenol.

Abstract: Organic polyphosphites are disclosed having in the molecule at least two phosphite ester groups, at least one of which is linked through oxygen to a phenylethylidene-substituted phenyl group and to a residue of a polyhydroxy compound which is a pentaerythritol residue or a residue of a phenol or alcohol having two to three hydroxyl groups separated from one another by at least three carbon atoms.Polymer stabilizer compositions comprising an organic polyphosphite as disclosed and a known polymer stabilizer, as well as synthetic resin stabilized with such stabilizer compositions, are also disclosed.

Abstract: The present invention is directed to stabilizer compositions or thermoplastic polycarbonates based on phosphites and siloxane-oxetane compounds. These stabilizers protect the polycarbonate against heat and oxidative degradation, and in addition, increase the hydrolysis resistance of the polycarbonate. The present invention is also directed to a process for stabilizing polycarbonate and to the stabilized polycarbonate produced therefrom.

Abstract: This invention is directed to a polymeric thermo-sensitive material which comprises a polyamide composition containing compounds of sulphur-contained compounds or phosphorous acid ester, and which is smaller in polarization in the application of direct-current electric field, higher in temperature detection function, does not cause flexibility deterioration due to heating operation and is less in hygroscopicity. A composition containing thiophosphorous acid ester and bis(hydroxyphenyl) sulfide derivative from a group of the phosphorous acid ester is particularly superior in quality.

Abstract: Synthetic resin compositions of improved resistance to deterioration by heat and light are provided containing a 2,2,6,6-tetramethyl piperidyl ether having the formula: ##STR1## The compounds of the invention can be prepared by the reaction of the 2,2,6,6-tetramethyl piperidyl alcohol R.sub.1 -OH with (poly) trimethylol alkane, (poly) pentaerthritol, or an alcohol containing an oxetane ring, to form the ether.The etherification is carried out by the conventional method, for example, by the reaction of R.sub.1 -OH with the organic sulfonate of the above-mentioned alcohols, or by the reaction of R.sub.1 -OH with the halogenated above-mentioned alcohols in the presence of an alkali or acid acceptor.The compounds where n is equal to 2 or more can be prepared by chain opening polymerization of the corresponding compound containing the oxetane ring.

Abstract: Diphosphites having the structural formula: ##STR1## wherein: R.sup.1 and R.sup.2 may be the same or different and are C.sub.4 to C.sub.12 tertiary alkyl or C.sub.9 to C.sub.14 tertiary aralkyl;R.sup.3 is hydrogen, C.sub.1 to C.sub.18 alkyl or C.sub.7 to C.sub.18 aralkyl. These hydrolytically stable solid diphosphites are useful as antioxidants in organic polymers such as polypropylene.

Abstract: A polyphenylene ether resin composition having improved heat stability, said composition comprising a polyphenylene ether resin matrix, and dispersed therein, a phosphonic acid or its derivative of the formula ##STR1## wherein R.sub.1 represents an unsubstituted or substituted phenyl or naphthyl group, or a linear or branched alkyl group with 1 to 18 carbon atoms, or a group of the following formula (a) ##STR2## R.sub.2 and R.sub.3 are identical or different and each represents hydrogen atom, a metal, an unsubstituted or substituted phenyl group, or an alkyl group with 1 to 10 carbon atoms; and R.sub.4 is a divalent hydrocarbon group with 2 to 10 carbon atoms.

Abstract: Copolyester-carbonate resins, and articles molded therefrom, exhibiting improved processability comprising the reaction product of; (i) at least one dihydric phenol; (ii) a carbonyl halide carbonate precursor; (iii) at least one difunctional carboxylic acid or a reactive derivative thereof; and (iv) at least one bishaloformate represented by the general formula ##STR1## wherein X represents a halogen radical and R represents an alkylene radical, said bishaloformate being present in an amount effective to improve the processability of said resin.

Abstract: A thermoplastic molding composition which comprises a homogeneous mixture of two thermoplastic copolymers is disclosed. In one of its more specific aspects, this invention pertains to a homogeneous mixture of a copolymer of a monovinyl aromatic monomer and an alpha, beta-unsaturated cyclic anhydride and a phosphorus-containing alternating copolymer.

Abstract: New N,N'-di-(hydroxy-phenyl) derivatives of piperazine are disclosed. These new compounds are useful for stabilizing thermoplastic polymers, in particular polyolefins, against sunlight, heat and oxidation.A process for producing the new compounds is also disclosed, as well as the polymeric compositions stabilized with said new compounds.

Abstract: 2,6-Di-tertiary butyl phenyl phosphites are provided having the structure ##STR1## as well as synthetic resin compositions having an enhanced resistance to deterioration by heat and/or light due to the presence of an organic phosphite of this class.

Abstract: An antimicrobial solution of a microbiologically active organo sulfonyl ethylene dissolved in an organo phosphorus compound selected from the group consisting of organophosphites and organophosphonates.

Abstract: A composition comprising an aromatic carbonate polymer in admixture with an effective thermal stabilizing amount of a compound of formula ##STR1##

Abstract: The present invention provides novel flame retardant, non-dripping thermoplastic molding compositions of polyphenylene ether resins or acrylonitrile-butadiene-styrene copolymers which include a flame retardant agent, and polytetrafluoroethylene.

Abstract: Diphosphites having the structural formula: ##STR1## wherein: R.sup.1 and R.sup.2 may be the same or different and are C.sub.4 to C.sub.12 tertiary alkyl or C.sub.9 to C.sub.14 tertiary aralkyl;R.sup.3 is hydrogen, C.sub.1 to C.sub.18 alkyl or C.sub.7 to C.sub.18 aralkyl. These hydrolytically stable solid diphosphites are useful as antioxidants in organic polymers such as polypropylene.

Abstract: A resin composition of improved hue which comprises, in specified proportions, an olefin-based resin such as polypropylene and at least three specified antioxidants which are (1) 2,6-di-t-butyl paracresol, (2) tri(mono- and/or di-nonylphenyl)phosphite and/or distearyl pentaerythritol diphosphite, and (3) tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate and/or octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)-propionate.

Abstract: Continuous process for producing a finely divided aqueous dispersion of a homogeneous phase of at least one fusible solid ingredient and possibly of at least one liquid ingredient in which an aqueous solution of dispersion additive with a melted homogeneous phase is continuously subjected to a high velocity gradient in an agitation zone. The respective temperatures and flow rates of the aqueous solution and the homogeneous phase are regulated so that the homogeneous phase of the dispersion thusly produced reaches its solidification temperature after the dispersion has been evacuated from the agitation zone and before thermal equilibrium between the aqueous solution and the homogeneous phase is reached.