Abstract: Aqueous aminoresin solutions for low-formaldehyde surface bonding, based on condensates of melamine, urea, phenol and formaldehyde having a molar ratio of from 1.4 to 1.8 moles of formaldehyde, from 0.04 mole to 0.1 mole of melamine and from 0.015 to 0.04 mole of phenol per mole of urea, relative to the total amount of the aminoresin, are obtainable by mixing(A) from 20 to 40% by weight of melamine/urea/phenol/formaldehyde consensate with(B) from 60 to 80% by weight of a urea/formaldehyde condensate.

Abstract: This invention provides novel hindered amine light stabilizers with flame retardant properties. The compounds of this invention protect polymeric compositions against the degradative effects of heat and light and simultaneously improve the flammability rating of the polymeric composition, while also contributing antioxidant and metal deactivation properties to the polymeric compositions.The compositions of this invention are prepared by reacting halogenated flame retardant containing a cyclic anhydride group with hindered amine light stabilizers containing primary amino or reactive hydrazido functional groups. The preparation of the novel compositions may be carried out in inert solvents or in inert polymeric compositions in a melt blending step.

Abstract: Compositions comprising a halogen-free polymer and, as flame retardant, at least one aluminum salt of a phosphonic acid of the formula: ##STR1## in which R is a straight or branched chain alkyl group having 1 to 3 carbon atoms optionally substituted by one or more of halogen atoms or hydroxyl groups and R' is hydrogen or an alkyl group having 1 to 3 carbon atoms.

Abstract: 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.

Abstract: Compounds possessing both a hindered amine moiety, such as a derivative of 2,2,6,6-tetramethylpiperidine, and a nitrone moiety are valuable stabilizers for protecting polymer compositions against the deleterious effects of actinic light and from the adverse effects of high temperature polymer processing environments. Additionally, the instant compounds present the opportunity for grafting onto preformed polymer backbones.

Abstract: The present invention disclosed herein is connected with a polypropylene resin composition giving off no corrosive and poisonous gases, having excellent moldability, providing molded articles with excellent mechanical strength and high flame retardance. The composition of the present invention is composed of predetermined amounts of a polypropylene resin, a polyethylene resin, polyammonium phosphate or polyammonium phosphate modified by melamine resin and a 1,3,5-triazine derivative. This composition may additionally contain a predetermined amount of one or more of specific thiophosphites and may further contain a predetermined amount of an olefinic synthetic rubber or elastomer and a crosslinking agent.

Abstract: Disclosed herein is a thermoplastic polyester molded article comprising a thermoplastic polyester and at least one of the specified diimide compounds, the latter being blended in an amount effective for ultraviolet screening. The polyester molded article and a composition for producing it according to this invention is capable of screening ultraviolet rays not only in the short wavelength region but also in the long wavelength region and has uniform dispersion stability and thermal stability. The molded articles of the present invention are free of undesired coloration and deposition of extraneous matter.

Abstract: A polycarbonate composition comprising 100 parts by weight of polycarbonate and 0.1 to 1.0 part by weight of at least one anti-yellowing compound selected from the group consisting of itaconic acid, itaconic anhydride, benzaldehyde dimethyl acetal, benzaldehyde propyleneglycol acetal and p-phthalaldehyde.

Abstract: In thermal stabilization of poly(.alpha.-olefin) fibers, such as a melt spun polypropylene, in which the poly(.alpha.-olefin) contains a hindered phenol, an organic phosphite, a hindered amine, and a metal salt of a fatty acid, the further inclusion of an alkali metal phosphate, such as sodium phosphate, results in improved thermal stability of the finished fiber.

Abstract: The invention relates to a stabilized polyolefin composition, which composition is stabilized against deterioration caused by contact with heavy metals and improved in coloration properties. This is achieved by blending a polyolefin with:(A) a phenolic compound represented by the formula (I), ##STR1## wherein R.sub.1 represents a C.sub.1 -C.sub.3 alkyl group, (B) a metal deactivator having one or more ##STR2## groups in the side chain, and (C) a sulfur-containing compound represented by the formula (II-1), (II-2), (II-3) or (II-4): ##STR3## wherein R.sub.2 represents a C.sub.4 -C.sub.20 alkyl group, ##STR4## wherein R.sub.3 represents a C.sub.4 -C.sub.20 alkyl group, ##STR5## wherein R.sub.4 represents a C.sub.3 -C.sub.18 alkyl group, and R.sub.5 and R.sub.6 independently represent a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group, ##STR6## wherein R.sub.7 represents a C.sub.3 -C.sub.18 alkyl group.

Abstract: A composition comprising an aromatic polycarbonate in admixture with an anti-yellowing effective amount of a compound of the formula ##STR1##

Abstract: Triazine compounds are disclosed which are useful for imparting UV screening properties to polymers of the formula: ##STR1## wherein R is an electron withdrawing group; R.sub.1 is H, ##STR2## where R.sub.3 is an alkyl group having from one to about six carbon atoms; and R.sub.2 is selected from H and CH.sub.3, also disclosed are polymer compositions having improved UV screening properties containing said triazine compounds.

Abstract: Novel flame retardant agents comprise polyalkylene oxides or a derivative thereof and end-capped with brominated phthalimide groups, and have the general formulae ##STR1## R.sup.1 is alkylene of from about 2 to about 6 carbon atoms; R.sup.1 is alkyl of from about 1 to about 6 carbon atoms; n is from about 4 to about 40; n' is from about 3 to about 15; and n" is from about 1 to about 10. Thermoplastic compositions, for example, polyphenylene ether compositions, rendered flame retardant with the novel compounds have a high resistance to additive vaporization and surface liquid exudation as well as desirable high flow characteristics.

Abstract: Polyvinyl chloride resin stabilizer compositions are provided, comprising a 2,2,6,6-tetramethyl piperidinyl compound and an ammonium or metal perchlorate; and also stabilized polyvinyl chloride resin compositions containing such stabilizers, and optionally including a plasticizer, and particularly as molded articles with polyurethane foam backing.

Abstract: A stabilized synthetic resin composition obtained by adding (1) 0.01 to 5 parts by weight of at least one monopiperidine compound represented by the following general formula (I): ##STR1## wherein R.sub.1 represents an alkyl group, an oxyl group or an acyl group, andR.sub.2 represents an aliphatic monoacyl group carrying 12 to 30 carbon atoms,and (2) 0.001 to 5 parts by weight of at least one polypiperidine compound having two or more tetramethylpiperidine groups represented by the following general formula (II) per molecule: ##STR2## to 100 parts by weight of a synthetic resin.

Abstract: Biodegradable polymers that are useful for making biodegradable sustained release agent dispensers and which contain acetal, carboxy-acetal, ortho ester and/or carboxy-ortho ester linkages.

Abstract: A solid stabilizer composition for organic polymers is formed by a solid, continuous phase and by a dispersed phase in said continuous phase, wherein the continuous phase is constituted by amorphous tetrakis-[3-(3,5-di-tert.-butyl-4-hydroxyphenyl)-propionyloxymethyl]-metha ne and the dispersed phase is constituted by an either amorphous or crystalline organic phosphite, in the form of particles with a particle size of from 10 .mu.m to 2 mm, with the weight ratio of said continuous phase to said dispersed phase being comprised within the range of from 9:1 to 1:9.The processes for preparing said solid stabilizer composition and its use in the stabilization of organic polymers are disclosed.

Abstract: Disclosed are novel bis-cyclic phosphite compounds having the formula ##STR1## wherein each R.sup.1 is independently selected from hydrogen, alkyl, aralkyl, aryl, carboxy, alkoxycarbonyl or halogen;each R.sup.2 is independently selected from hydrogen, alkyl, aralkyl, alkoxy, aryl, carboxyl, alkoxycarbonyl or halogen;each R.sup.3 and R.sup.4 is alkyl; andA is 1,3- or 1,4-phenylene.Also disclosed are synthetic polymeric materials stabilized with one or more of the above compounds.

Abstract: Rubber articles subjected to ozone while under dynamic flexing conditions are protected using a novel triazine class of materials, specifically tris-(N-alkyl-p-phenylenediamino)-1,3,5-triazines. Belts, hose, air springs, roofing membranes, etc. are preferred articles of the invention.

Abstract: A polymer composition comprises a polymer blend comprising a polyester and a polycarbonate or another polymer blend comprising alpha-methylstyrene-modified ABS resin and at least one polymer selected from a polycarbonate, a saturated polyester, polyphenylene ether, a polyamide and a polyacetal and an organic phosphite compound having the formula (I): ##STR1## in which R is an alkyl having 1 to 9 carbon atoms.