Abstract: The invention pertains to vinyl chloride polymer compositions with an oxygen index according to ASTM D 2863 of at least 60 and reduced smoke formation under conditions of fire. This is achieved in that the composition contains 0.05-5 parts by weight per 100 parts by weight of vinyl chloride polymer of a zinc titanate that consists to a large extent of zinc titanate possessing the spinel structure.

Abstract: Pressure-sensitive adhesive compositions having solvent resistant properties comprising (a) a synthetic rubbery thermoplastic block-copolymer, (b) a polyester and (c) a tackifier resin.

Abstract: New ortho-alkylhydroxybenzyl substituted propanediol compounds of carboxylic acids, aldehydes, ketones, phosphites, phosphates, and phosphonates are disclosed. The propanediol compounds have in the molecule from one to four preferably from one to three ortho-alkylhydroxybenzylpropanediol units, each of which carries one to two ortho-alkylhydroxybenzyl groups, and are highly effective stabilizers for a variety of synthetic resins.Stabilizer compositions comprising a orthoalkylhydroxybenzylpropanediol compound and a known polymer stabilizer, as well as synthetic resins stabilized with such stabilizer compositions, are also disclosed.

Abstract: Stabilization system consisting of a triarylphosphite of the general formula ##STR1## wherein R.sub.1 represents tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl, and one ofR.sub.2 and R.sub.3 is hydrogen and the other is hydrogen, methyl, tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl,and a phenolic antioxidant, for stabilizing polyolefins.

Abstract: Thermoplastic polyphenylene oxide compositions such as polyphenylene oxide that has been modified with high impact polystyrene are rendered fire retardant by the addition of an effective amount of a 3-hydroxyalkyl phosphine oxide such as n-butyl bis(3-hydroxypropyl) phosphine oxide.

Abstract: Novel compositions useful as stabilizers during the production of vinyl halide resins are disclosed which comprise pentavalent antimony mercaptides having the general formula: ##STR1## wherein K is 0 to 4;L is 0 to 1;M is 0 to 4;N is 0 to 4; andR is a primary alkyl, alkenyl, alkynyl having 1 to 18 carbon atoms and combinations thereof.Also disclosed is a novel method for synthesizing such compounds which comprises a single-reaction of a thiol, having the general formula HS-R, with sodium antimonate and concentrated hydrochloric acid whereby the pentavalent antimony mercaptide is obtained. The compositions of the present invention when used during vinyl halide resin processing retard discoloration and mechanical degradation at least as effectively as previously known antimony mercaptides while exhibiting shelf and light stabilities superior thereto.

Abstract: A resin composition having an excellent fire retarding effect is provided which comprises (1) a polycarbonate and (2) as a fire retardant, at least one member of the group consisting of (A) a metal salt of a sulfuric ester of an alcohol, (B) an ether derived from an alkyl alcohol and a phenol and having a metal sulfonate group bonded to the carbon atom of the alkyl group and (C) a polycarbonate having at least one alkali metal sulfonate group bonded to the terminals through alkyl. Addition of a mixture of the component (A) and at least one specified halogen-containing organic compound as the fire retardant to the polycarbonate (1) affords a resin composition having a greater fire retardant effect.

Abstract: A flame-retarding resin composition comprising (1) polybutylene terephthalate, (2) an organohalogen compound as a flame-retarding agent, (3) a flame-retarding supplementary agent, (4) calcium sulfate, and (5) an inorganic fibrous reinforcing agent, and optionally (6) at least one polymer selected from a saponified polyvinyl acetate having a saponification degree of greater than 50 mole %, an ethylene/vinyl acetate copolymer, and a saponified ethylene/vinyl acetate copolymer.

Abstract: The invention relates to a method for cross-linking radically cross-linkable polymers and for stabilizing such polymers against oxidative and/or thermal decomposition. The method is developed so that rapid and economical cross-linking of radically cross-linkable polymers is obtained in the presence of oxidation inhibitors without adverse effects on the cross-linking process due to the oxidation inhibitor. For this purpose, the invention provides that the cross-linking is carried out in the presence of oxidation inhibitors, wherein the inhibition-active --OH and/or --NH functions are at least partially substituted by protective silyl- and/or silylene groups, the inhibitor molecule containing at least one Si-alkenyl group. The method according to the invention is suitable for use with radical as well as radiation-cross-linkable polymer.

Abstract: A composition is provided for marking hot metal objects, which may be moving e.g. steel bar emerging from a rolling mill. The composition is in powder form and comprises a major weight proportion of refractory pigment and a fusible adhesion agent therefor. For marking, the composition may be applied in a carrier gas, optionally through a stencil, to the surface of the object and allowed to adhere there. Clear, durable markings are obtainable.

Abstract: Phosphorus-containing condensation products are obtained by effecting condensation between an organophosphorus compound of the Formula, ##STR1## wherein X, Y and Z each is hydrogen or halogen, R.sub.1 and R.sub.2 each is hydrogen or methyl and R.sub.3 is hydrogen or an alkyl group and polyhydric alcohols having at least three alcoholic hydroxyl groups.These condensation products are ueful as a flame retardant for various synthetic resins.

Abstract: A liquid recording medium for use in a recording device, wherein the liquid recording medium is discharged from a discharge orifice in a recording head of the device and spattered in the form of droplets contains a carbonic acid ester compound having an aliphatic radical.

Abstract: Alkylene bis-thioalkanoic acid amide stabilizers are provided, as well as synthetic resin compositions containing the same, having the general formula: ##STR1## wherein: R.sub.1 is alkyl having from one to about fifty carbon atoms,R.sub.2 is alkylene having from one to about three carbon atoms; andR.sub.3 is alkylene having from two to about twelve carbon atoms.

Abstract: Novel compositions and use therefore as stabilizers during the production of vinyl halide resins are disclosed which comprise antimony mercaptides having the general formula: ##STR1## wherein K is 1 to 4;L is 0 to 1;M is 1 to 4;N is 1 to 4;X is oxygen or sulfur; andR is an alkyl, alkenyl, alkynyl having 1 to 18 carbon atoms and combinations thereof.Such compositions when used during vinyl halide resin processing retard discoloration and mechanical degradation at least as effectively as previously known antimony mercaptides while being more economical to produce.

Abstract: The combination of a conventional antimony- or bismuth-containing heat stabilizers with certain aromatic esters or aryloxides containing boron, phosphorus, silicon, antimony, tin or zinc interacts synergistically to provide an unexpectedly high level of heat stability to halogen-containing polymers such as polyvinyl chloride (PVC). In addition the aromatic ester or aryloxide inhibits spontaneous degradation of the heat stabilizing component in the presence of heat and/or light.

Abstract: A melt-processable fluorine-containing resin composition having an improved thermal stability which comprises a tetrafluoroethylene copolymer, a chlorotrifluoroethylene homo- or co-polymer, or a vinylidene fluoride homo- or co-polymer and at least one thermal stabilizer selected from the group consisting of an amine antioxidant, an organosulfurous compound, an organo tin antioxidant, a tin powder and a zinc powder. The composition can be advantageously processed without causing any trouble even at an optimum sintering temperature of the fluorine-containing resin.

Abstract: Alkylated 6-phenoxy-dibenz[c,e]-[1,2]oxaphosphorines are suitable as stabilizers for organic material.

Abstract: Compositions for stabilizing a vinyl or vinylidene halide polymer or chlorinated polyethylene which comprise a major proportion of (a) at least one ester tin compound, for example .beta.-carboalkoxyethyl tin mercaptides, .beta.-carboalkoxyethyl tin mercapto-acid esters and the like and a minor proportion of (b) at least one unsubstituted or alkyl substituted o-dihydric phenol, such as catechol, t-butyl catechol and 2,3-dihydroxy naphthalene.These compositions synergistically contribute to the heat stability of vinyl or vinylidene halide polymers or chlorinated polyethylene. The performance of the compositions disclosed is particularly improved as regards resistance to early discoloration and long term heat stability of the ester tin compounds contained in them. Moreover, the amounts in which the compounds need be used for stabilization can be kept relatively small.

Abstract: A novel diester compound of the formula (I): ##STR1## wherein each of R.sub.1 and R.sub.2 represents a group of the formula (II): ##STR2## wherein X is bromine atom; Y at least one group selected from the group consisting of alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, hydroxyl group and primary, secondary or tertiary amino groups; p an integer of 0 to 4; q an integer of 1 to 4; r an integer 1 to 4 and (q+r) is equal to an integer of not more than 5, is found to be capable of imparting excellent flame-retardancy to various inflammable polymeric materials such as polystyrene, polyester, polyamide, polyphenylene oxide, etc. without deleterious effects on other physical properties of such polymeric materials.

Abstract: An improved manufacturing procedure for making slices or layers used to form shipping packs of concrete brick or block like articles. Such slices or layers, a plurality of which are used to form a shipping pack of bricks, are prepared according to the present invention by forming individual articles in a particular way on forming boards prior to curing. By making this specific arrangement of articles on the forming board prior to curing which arrangement corresponds to the form and number of lateral and longitudinal rows as are desired to ultimately appear in each slice of a shipping pack shipping packs are quickly and easily formed. After curing, it is only necessary to compact and, when necessary, strap the layer in its compacted condition. Thereafter, each layer or slice can be used directly to form a shipping pack without further handling or regrouping of individual brick or block like articles in each layer.