Abstract: A polyvinyl chloride resin containing blended therein a hindered amine light stabilizer having the following structural formula (I): ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents a lower alkyl group and R.sub.5 represents an alkylene or terminal acetyl group, in an amount of 0.01-5 parts by weight based on 100 parts by weight of a polyvinyl chloride resin.

Abstract: A polyolefin resin is stabilized against heat, oxidation and light as well as against discoloration by combustion gas and nitrogen oxide gas by incorporating therein the following two components:(A) a hindered phenolic compound represented by the following formula (I): ##STR1## wherein R is a hydrogen atom or an alkyl of 1 to 3 carbon atoms; and (B) a hindered piperidine compound represented by the following formula (II): ##STR2## wherein n is 2 to 20.

Abstract: A heat and oxidation stabilized polymeric article, preferably fiber or film, is prepared by applying to the article a composition which comprises effective amounts of a nitrogen-containing antioxidant and a compatible carrier. When the composition is applied as a process finish, the carrier is a lubricant which is the reaction product of an alkylene oxide with a compound selected from the group consisting of a fatty acid having about 5 to 36 carbon atoms and an alcohol having about 5 to 36 carbon atoms, with the number of moles of alkylene oxide per mole of acid or alcohol ranging from 2 to 20. The stabilized article has utility in high performance applications.

Abstract: Polyolefins and olefin copolymers which are prepared by polymerization on a catalyst made from a magnesium halide, a titanium compound and an aluminium alkyl can be stabilized by the addition of certain sterically hindered triazinylpiperidines, which are substituted in the 1-position, to the polymerization.

Abstract: Described are novel reversible photochromic naphthopyran compounds substituted on the naphthyl portion at the carbon atom juxtaposed to the oxygen of the pyran ring with, for example, an acetoxy group. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indolino)-oxazine type compounds, are also described.

Abstract: Chlorine-containing polymers can be stabilised against thermal and actinic degradation by addition of a sterically hindered amine and a zinc compound in the absence of other organometallic compounds. It is preferred additionally to add a 1,3-dicarbonyl compound.

Abstract: A method of stabilizing a polyolefin nonwoven web against actinic radiation which involves the steps of (a) melting a mixture of a thermoplastic polyolefin, a first additive, and a second additive; (b) forming fibers by extruding the resulting melt through a die at a shear rate of from about 50 to about 30,000 sec.sup.-1 and a throughput of no more than about 5.4 kg/cm/hour; (c) drawing the fibers; and (d) collecting the fibers on a moving foraminous surface as a web of entangled fibers. The first additive is a benzotriazolyl-containing polydialkylsiloxane having a molecular weight in the range of from about 500 to about 1,400 and a polydispersity of from about 1.3 to about 2.5. The second additive is a polyalkylpiperidyl-containing polydialkylsiloxane having a molecular weight in the range of from about 1,500 to about 30,400 and a polydispersity of from about 1.3 to about 3.0.

Abstract: This invention relates to radiation curable abrasion resistant coatings for solid substrates which are tintable. The compositions of the present invention contain a quaternary ammonium salt as a tintability enhancing compound. The cured coatings of this invention simultaneously resist abrasion and provide superior tintability.

Abstract: Incorporation of at least one hindered amine light stabilizer ("HALS") compound having a hindered phenol group and a piperidine ring or oxo-piperazinyl ring, provided that each such ring has a hindered amine, at the N.sup.4 position in the ring, that is of tertiary functionality, into polyacetal homopolymer compositions improves the UV stability, and does not significantly degrade the melt processing thermal stability, of said composition.Incorporation of (a) a HALS compound having an s-triazine group, along with a piperidine ring or an oxo-piperazinyl ring, (provided each such ring has a hindered amine at the N.sup.4 position in the ring), and (b) a HALS as described in the preceding paragraph into polyacetal polymer compositions improves the UV stability, and does not significantly degrade the thermal stability of said composition.The composition of the present invention are useful in polyacetal applications where enhanced UV stability is desired.

Abstract: The present invention relates to novel piperidine compounds of the formula (I) ##STR1## in which A is e.g. a group of the formula ##STR2## where R.sub.4 is e.g. hydrogen or methyl, X.sub.3 is e.g. --O-- or --NH-- and R.sub.5 ' is e.g. ethylene, propylene or decamethylene, R.sub.1 is e.g. methyl, methoxy, ethoxy or OH, R.sub.2 and R.sub.3 are e.g. methyl, m+n is e.g. a number from 1 to 40, n varies e.g. from zero to 50% of the sum m+n, X.sub.1 is e.g. as defined for R.sub.1 or is a group (CH.sub.3).sub.3 SiO-- and X.sub.2 is e.g. hydrogen, methyl, ethyl, a group (CH.sub.3).sub.3 Si-- or a group ##STR3## and, when m+n is a number from 3 to 10, X.sub.1 and X.sub.2 together also form a direct bond. The compounds of the formula (I) are effective in stabilising an organic material against thermal, oxidative and light-induced degradation.

Abstract: A polypropylene resin containing an .alpha.-olefinic copolymer rubber and an inorganic filler is stabilized by incorporating therein the following 6 components:(A) a hindered phenolic compound having a molecular weight of not less than 500,(B) a high-molecular hindered piperidine compound such as poly[{6-(1,1,3,3-tetramethylbutyl)amino-1,3,5-triazine-2,4-diyl}{(2,2,6,6- tetramethyl-4-piperidyl)-imino}hexamethylene{(2,2,6,6-tetramethyl-4-piperid yl)imino}],(C) a low-molecular hindered piperidine compound such as 2-methyl-2-(2,2,6,6-tetramethyl-4-piperidyl)amino-N-(2,2,6,6-tetramethyl-4 -piperidyl)propionamide,(D) a benzoate compound such as 2,4-di-t-butylphenyl 3,5-di-t-butyl-4-hydroxybenzoate,(E) a phosphorous compound such as bis(2,4-di-t-butylphenyl) pentaerythritol diphosphite, and(F) an amide compound such as ethylene-bisstearylamide. This composition may also contain a sulfur compound such as dialkyl thiodipropionate and pentaerythritol tetrakis(3-alkylthiopropionate).

Abstract: Non-gelling, radiation curable liquid coating compositions comprise at least one acrylic ester, preferably a mixture of a silyl acrylate and at least one polyfunctional acrylate; silica, preferably having an average particle size in the range of about 15-30 nm.; an initiator for ultraviolet radiation-induced curing and a hindered piperidyl ester such as bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate. The compositions also preferably contain an ultraviolet stabilizer, typically a benzophenone or benzotriazole. When employed as coatings for resinous (especially polycarbonate) articles and cured, said compositions provide abrasion resistance and weatherability.

Abstract: A weather-resistant polyacetal resin composition which comprises(A) 100 part by weight of a polyacetal resin,(B) 0.01 to 5 parts by weight of a weathering (light) stabilizer and(C) 0.5 to 60 parts by weight of a graft copolymer comprising (a) an olefin (co)polymer and (b) one or more vinyl (co)polymers which are chemically bonded to each other to form a branched or crosslinked structure.The surface of a molded article made from the composition is excellent in weathering resistance, so that it undergoes less crack and reduced discoloration.

Abstract: There is disclosed a radiation stabilized fabric of propylene polymer or copolymer of propylene which has improved odor characteristics. Radiation stabilization results from adding by weight 0.25 to 2.0 percent of an acetylated hindered amine light stabilizer known in the art as Cyasorb UV-3668 or by adding by weight 0.25 to 2.0 percent of an oligomeric, hindered amine substituted siloxane such as polymethyl propyl 3-oxy [4- (2, 2, 6, 6-tetramethyl) piperdinyl] siloxane.

Abstract: A rubber composition for steel-belted automobile tires containing selected amounts of partial condensates of hexamethylolmelamine pentamethylether, cresol resin, sulfur and cobalt salts of organic acid, to improve its warm water to steel cords in the tire and increased tensile strength.

Abstract: Polysubstituted N-hydrocarbyloxy hindered amines are effective light stabilizers in protecting organic substrates against the deleterious effects of actinic light.

Abstract: The invention is a composition containing a polymer formed by side ring opening of an arylcyclobutene compound and an effective amount of an antioxidant.

Abstract: Coating composition especially useful for high gloss coating of untreated, bright, sealed, anodized metal substrates, particularly coils of such metal, comprises a catalyst-free composition comprising a high gloss, thermosetting, hydroxyl group-containing fluorocarbon polymer, a cross-linking agent comprising a blocked aliphatic polyisocyanate, a partially self-condensing, highly methylated melamine-formaldehyde resin or a mixture of the blocked polyisocyanate and melamine-formaldehyde resin, butanol solvent, an ultraviolet screening agent, an ultraviolet stabilizer acting as free radical scavenger, and optionally one or more of the following components: polysiloxane slip and flow and defoaming agents, a high boiling solvent distilling at a temperature of about 195.degree. C. or above to modify the viscosity of the composition and an amine active as an inhibitor for residual acid in the fluoropolymer.

Abstract: Weather-resistant polyacetal compositions and molded parts formed of such compositions including a polyacetal base resin and a weather stabilization packaged which necessarily includes a UV-light stabilizer for the polyacetal resin, and a basic compound which contains at least one tertiary nitrogen atom and at least one metal carboxylate group in its molecule. The compositions of the present invention may optionally include a colorant.

Abstract: Novel polymeric polyalkyl-1-oxa-diazaspirodecanes of the formula I ##STR1## are very effective stabilizers for natural any synthetic polymers. They have very low volatility, high migration resistance and high thermal stability.

Abstract: A sealant composition especially useful for porous materials such as wood, concrete and mansonry is provided comprising: (a) a silanol-terminated polysiloxane having a molecular weight greater than about 2000; (b) a multifunctional silane having functional groups which condense with silanol groups in the presence of atmospheric moisture at room temperature to form a cross-linked polymer; and (c) a nonaqueous volatile solvent which is non-reactive with components (a) and (b).The sealant composition renders said materials waterproof by coating and filling in the pores of said material with cured silicone rubber product.In a preferred embodiment the composition also contains a metal-containing curing catalyst and a volatile or subliming chelating agent in an amount sufficient to prevent cure of the composition in the storage container prior to or during use.The composition may also comprise adhesion agents, surfactants and pigments.

Abstract: The present invention comprises novel single-functional and mixtures of multi-functional oligomeric performance additive compounds having one or more components of Structure A R1 ? ? ##STR1## (The definitions of R, Z1, Z2, Z3, A1, A2, A3 and y are given in the Summary Section), their uses and polymeric compounds and compositions containing them which have enhanced oxidative stabilities, enhanced ultraviolet (UV) and light stabilites and/or enhanced flame retardance. An example is the bis sulfonic acid bispotassium salt reaction product from an oligomeric caprolactone diol (TONE.RTM. 260), 2-sulfobenzoic acid anhydride and potassium carbonate, and use of this product, at levels up to about 3.0%, in a general purpose bisphenol A polycarbonate resin, to enhance the fire resistance or flame retardance of the polycarbonate resin.

Abstract: Disclosed are olefin polymers in nonextruded, aspolymerized particle form having a regular, essentially symmetrical geometrical shape, which are stabilized by depositing on their surface a mixture which is either melted, or in which at least stabilizer (A) is in the liquid state, and which comprises the following stabilizers (percent by weight on the polymer):A) from 0.02% to 0.015% of one or more organic phosphites or phosphonites or mixtures thereof, which are liquid at room temperature or have melting point below 100.degree. C.;B) from 0.025% to 0.2% of one or more phenolic antioxidants with melting point from 45.degree. to 130.degree. C.; and, optionally, one or more of the following additional components:C) from 0.05% to 0.5% of one or more thioethers, or organic polysulfides or mixtures thereof;D) from 0.1% to 1.0% of one or more light stabilizers which are liquid at room temperature or have a melting point below 150.degree. C.

Abstract: The invention relates to epoxide resin mixtures hardenable at room temperature, comprised of:(A) Polyepoxides with more than one epoxide group per molecular;(B) Aliphatic or cycloaliphatic polyamines with more than two active hydrogen atoms bound to the nitrogen of the amino groups;(C) A reaction product having mean m.w. 500-8,000 of:(c1) a polyalkylene ether polyol prepared from alkylene oxides and one member selected from the group consisting of di-functional alcohols, polyfunctional alcohols, or mixtures thereof, and(c2) an aliphatic or cycloaliphatic diisocyanate, wherein the NCO : OH ratio is 2:1, and wherein said reaction product is blocked with a certain sterically hindered piperidine derivative; and optionally(D) Customary fillers, pigments, reaction accelerators, and viscosity regulators.

Abstract: This invention relates to polyacetal compositions that are stabilized against ultraviolet light and heat degradation due to the inclusion therein of a mixed hindered amine light stabilizer (HALS) system, wherein each HALS of the system contains a hindered amine that is of tertiary functionality.

Abstract: Substituted 3H-1,3,2-oxazaphospholidines of formula I ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, alkyl, cycloalkyl, phenylalkyl or aryl, n is 1 to 4 and T is an n-valent aliphatic or aromatic hydrocarbon radical are effective in stabilizing organic materials against the deleterious effects of oxygen, heat and/or actinic radiation.

Abstract: Compounds of formula I ##STR1## wherein n is 2-4, R.sub.1 is alkyl, cycloalkyl, phenylalkyl, phenyl or a radical of formula II ##STR2## R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, alkyl, cycloalkyl, phenylalkyl or aryl, or R.sub.3 and R.sub.4 together are alkyl, R.sub.5 and R.sub.6 are independently hydrogen, alkyl, cycloalkyl or phenylalkyl, R.sub.7 is hydrogen, alkyl or a group of the formula --(CH.sub.2).sub.k COOR.sub.8, where k is 0-2 and R.sub.8 is hydrogen or alkyl, and T is an n-valent hydrocarbon radical which may be interrupted by heteroatoms, are useful stabilizers for substrates subject to the deleterious effects of oxygen, heat and/or actinic radiation.

Abstract: Substituted 1,3,2-benzoxazaphospholidines of formula I ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen, alkyl, cycloalkyl, phenylalkyl or aryl, n is 1 to 4, and T is an n-valent aliphatic or aromatic hydrocarbon radical are effective in stabilizing organic materials against the deleterious effects of oxygen, heat and actinic radiation.

Abstract: A resin composition, being useful for coating on electric wire, comprises an aromatic polyester, a halogenated compound such as diol, diglycidyl and dicarboxylic acid and a di-heterocyclic compound.

Abstract: A polyethylene stabilizer composition comprises:A) one or more compounds with piperidine groups of the formula (I) or (Ia) ##STR1## in which R is hydrogen, C.sub.1 -C.sub.4 -alkyl, allyl, benzyl, acetyl, acryloyl, 2-hydroxyethyl or 2-hydroxypropyl andB) one or more metal compounds such as oxides and hydroxides of Al, Mg and Zn and, if appropriate, one or more salts of Al, Ba, Ca, Mg, Sr and Zn with C.sub.1 -C.sub.22 -carboxylic acids.

Abstract: This invention relates to the improvement of rubber-to-metal adhesion and adhesion retention in sulfur vulcanizable, metal reinforced rubber compositions via the use of certain phenylenediamino substituted chloropyrimidine and chlorotriazine adhesion promoters.

Abstract: N--OR.sub.1 substituted hindered amine light stabilizers impart outstanding stabilization properties to ambient cured coatings based on a variety of resins, the stabilized coatings exhibiting improved durability, weatherability, and the like.

Abstract: A composition comprising (A) (i) a crosslinked organosilicon polymer or crosslinkable organosilicon prepolymer comprising alternating (a) cyclic polysiloxane or tetrahedral siloxysilane residues and (b) polycyclic hydrocarbon residues derived from polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings linked through carbon to silicon bonds, wherein at least one of the cyclic polysiloxanes or tetrahedral siloxysilanes (a) or the polycyclic polyenes (b) used to form the polymer or prepolymer has more than two reactive sites; or (ii) a crosslinked or crosslinkable linear poly(organohydrosiloxane) polymer having at least 30% of its .tbd.

Abstract: A weather-resistantt polyacetal molding composition are comprised of a polyacetal base resin, and a weather-resistance effective amount of a stabilization package which includes (i) a weather stabilizer for the polyacetal base resin, (ii) an acrylic resin, and (iii) an oxyalkylene polymer comprised of repeating oxyalkylene units each having 2 to 8 adjacent carbon atoms.

Abstract: New and novel carboxylic acid hydrazides bearing a 2,2,6,6-tetra-alkyl-4-piperidine ring and new and novel polymeric compositions stabilized therewith are provided. The novel compounds which contain a light stabilizing group and a reactive hydrazide functionality in the same molecule are prepared by hydrazinolysis of the ester group of an intermediate carboxylic acid ester which contains the 2,2,6,6-tetralkylpiperidine moiety.

Abstract: N-OR.sub.1 substituted hindered amine light stabilizers impart outstanding stabilization properties to acid catalyzed thermoset coating compositions providing enhanced resistance against the deleterious effects of light, moisture or oxygen without inhibition of cure.

Abstract: Self-extinguishing polyurethanes are obtained by stepwise polyaddition of diisocyanates or polyisocyanates with polyols with the addition of a flameproofing agent comprising a phosphorus component and a nitrogen component as synergists. While the phosphorus component used is an ammonium polyphosphate which is sparingly soluble in water and, if desired, has been microencapsulated with a melamine/formaldehyde resin, the organic nitrogen component is selected from the group consistinga) bis(triazinyl)piperazinesb) hydroxyalkyl isocyanuratesc) condensation products of amino-1,3,5-triazines with aldehydes.

Abstract: The present invention relates to weather resistant resin compositions consisting essentially of at least one polymeric substance and comprising discoloration effective amounts of:(i) a hindered amine stabilizer;(ii) a hindered-phenol-hindered amine stabilizer; and(iii) a UV absorber.

Abstract: Hindered amines based on various 2,2,6,6-tetraalkylated nitrogen-containing heterocyclic moieties wherein the hindered nitrogen atom on the ring is substituted with OR.sub.1 substituents and the 4-position of the ring is substituted with a diversity of substituents are effective in protecting polyolefins against the adverse effects of light, heat and oxygen.

Abstract: A flame retardant polyester elastomer composition comprising a polyester elastomer, an amine antioxidant, and a hindered amine light stabilizer.

Abstract: Weather-resistant polyacetal resin compositions and molded articles formed of the same include a polyacetal base resin, and a weather-resistant effective amount of a weather stabilizing package comprised of (i) a weather stabilizer that is at least one selected from the group consisting of benzotriazoles, benzophenones, aromatic benzoates, cyanoacrylates, oxalanilides and hindered amines (ii) a homopolymer or copolymer of acrylic or methacrylic acid, or ester derivatives thereof, and (iii) a fluororesin.

Abstract: The present invention provides a stabilized polyolefin resin composition having improved resistances to oxidation and to weather which is prepared by adding (a) a phenol antioxidant, (b) a sulfur antioxidant, (c) a hindered amine light stabilizer and (d) an aliphatic monocarboxylate of a metal belonging to the group Ia or IIb to a polyolefin resin containing an inorganic filler.

Abstract: A polymer such as polyester is modified with reaction with a modifier of a compound having the formula: ##STR1## in which X is halogen, Y.sub.1 and Y.sub.2 are a three- to eight-membered ring, Z is a divalent organic group and n is 1 or more.

Abstract: High-molecular weight organic material containing at least one metal complex of a ligand of formula I: ##STR1## wherein A is a carbocyclic aromatic or heterocyclic aromatic radical, B is a carbocyclic aromatic radical or a heterocyclic aromatic radical containing at least one N atom, it being necessary for at least one of the radicals A and B to be heterocyclic, and R.sub.1 is --C.sub.1 -C.sub.18 -alkyl, a carbocyclic aromatic radical or a heterocyclic aromatic radical containing at least one N atom, and the metal is a transition metal cation carrying a double positive charge selected from Ni.sup.2+, Cu.sup.2+, Co.sup.2+, Zn.sup.2+, Mn.sup.2+, Fe.sup.2+, Cd.sup.2+ or Pt.sup.2+ or the radical VO.sup.2+.

Abstract: N-hydroxy substituted hindered amine light stabilizers impart outstanding stabilization properties to acid catalyzed thermoset coating compositions with enhanced resistance against the deleterious effects of light, moisture or oxygen in the substantial absence of cure inhibition.

Abstract: A process is disclosed for the photochemical stabilization of undyed and dyed polypropylene fibre material with light stabilizers, which process comprises treating said material with an aqueous solution containing a light stabilizer from the class of the sterically hindered amines.

Abstract: The addition of hindered amines in combination with a phosphorus-III-ester to the polymerization of olefins on spherical Ziegler-Natta catalysts effects a thermo-oxidative stabilization of the prepared polymers. Phenolic antioxidants may be used additionally.

Abstract: A halogen-containing polyester resin composition having an improved stable flexibility and flame retardency which comprises a bislactam compound and a flame-resisting aromatic polyester copolymers containing halogen at a ratio of 0.5 to 30% by weight, said copolymers being by the poly-condensation of(A) aromatic dicarboxylic acids or ester-forming derivatives thereof;(B) aliphatic glycols or ester-forming derivatives thereof; and(C) halogen-containing ester-forming compounds, said bislactam compound being present in a ratio of 0.1 to 10% by weight based on the total quantity of the composite.

Abstract: A process for coating polymer particles with an additive includes preparing a liquid composition comprising one or more desired additives and a gelling agent in an oil. The composition is coated onto the polymer particle by any convenient procedure. On cooling the coated particle below the gelling point, the composition gels providing a polymer particle having a uniform coating of the additives which is suitable for direct introduction into a mold.

Abstract: The weather and UV-light resistance of polyacetal resin compositions is improved by incorporating into polyacetal resin a stabilizing package comprised of at least one stabilizing agent selected from benzotriazoles, benzophenones, aromatic benzoates, cyanoacrylates, oxalanilides, and hindered amines, and an acylate resin selected from homopolymers or copolymers of acrylic or methacrylic acid, and ester derivatives thereof.