Abstract: Flexible and semi-rigid vinyl chloride resin compositions comprising a combination of a latent mercaptan and a zinc salt of oxidized polyethylene (a zinc ionomer) as a heat stabilizer are substantially free from the offensive odor typically associated with mercaptans and are protected during processing by the degradation products of the latent mercaptan and the zinc ionomer. The oxidized polyethylene is split out from the ionomer to act as an adhesion promoter for aqueous inks and paints, and the residual zinc carboxylate functions as a co-stabilizer with the latent mercaptan in the composition. The latent mercaptan is exemplified by a 2-S-(tetrahydropyranyl)thioalkanol, a carboxylic acid ester thereof, a 2-S-(tetrahydropyranyl)thiocarboxylic acid, an ester thereof, and the furanyl homologs of each.

Abstract: This invention describes novel blocked mercaptosilanes wherein the hydrogen atom of the mercaptan functionality has been substituted. The invention includes methods of preparation for the blocked mercaptosilicon compounds as well as their use in filled rubbers. The blocked mercaptosilanes described are unique in that they allow the mixing of fillers with organic polymers to proceed while remaining inert toward coupling to the polymer. The coupling reactions of these blocked mercaptosilicon compounds are triggered by addition of an appropriate deblocking agent.

Abstract: A method of achieving a novel superior dispersion of insoluble sulfur comprises mixing polysulfur while it is in the rubbery state with a diluent, such as rubber, to obtain a novel uniform dispersion of the sulfur in the diluent.

Abstract: Halogen-containing polymer compositions comprising a latent mercaptan-containing heat stabilizer composition substantially free from the offensive odor typically associated with mercaptans are protected during processing by the degradation products of the latent (i.e., blocked) mercaptan which include a free mercaptan. Other products of the degradation are believed to include carbocations of the blocking moiety which are stabilized by a molecular structure in which the electron deficiency is shared by several groups. The latent mercaptan may be the sole heat stabilizer additive but the free mercaptan released during processing may also synergize the activity of metal-based heat stabilizers such as metal salts and organometallic stabilizers such as organotin carboxylates and mercaptides in the polymer composition. The odor of primary mercaptan-containing heat stabilizers in halogenated polymer compositions is masked by a small amount of a latent mercaptan.

Abstract: A rubber vulcanization agent comprising a polysulfide polymer having an average number of sulfur bonds in the repeating units of more than 2 but not more than 6 and having the formula (I) R—S&Parenopenst;Y—Sx&Parenclosest;nY—S—R  (I) wherein Y indicates an alkylene group which may include a hetero atom, R is a residue obtained by reacting a thiol group with an unsaturated alicyclic compound, an unsaturated hydrocarbon compound having the structure (III) or (IV), which may include a hetero atom so as to cap the end thiol group, n is an integer of 1 to 100, and x is more than 2 but not more than 6.

Abstract: A rubber composition comprising (A) a base rubber, (B) a metal salt of an unsaturated carboxylic acid and/or a mixture of an unsaturated carboxylic acid and zinc oxide, (C) an organic peroxide, and (D) a non-aromatic mercaptan and/or (E) a dialkyl disulfide whose alkyl has 3-10 carbon atoms is suitable for forming center cores of solid golf balls and wound golf balls and one-piece golf balls by a pressure molding process.

Abstract: The present invention relates to rubber compositions containing a disodium salt of 3,3′-dithiodipropionic acid.

Abstract: Halogen-containing polymer compositions comprising a latent mercaptan-containing heat stabilizer composition substantially free from the offensive odor typically associated with mercaptans are protected during processing by the degradation products of the latent (i.e., blocked) mercaptan which include a free mercaptan. Other products of the degradation are believed to include carbocations of the blocking moiety which are stabilized by a molecular structure in which the electron deficiency is shared by several groups. The latent mercaptan may be the sole heat stabilizer additive but the free mercaptan released during processing may also synergize the activity of metal-based heat stabilizers such as metal salts and organometallic stabilizers such as organotin carboxylates and mercaptides in the polymer composition. The odor of primary mercaptan-containing heat stabilizers in halogenated polymer compositions is masked by a small amount of a latent mercaptan.

Abstract: A process of producing a vinyl chloride fiber with a small fineness having seven-tenth to half of the full luster surface and feel remarkably similar to human hair is provided. The process provides the vinyl chloride fiber comprising a vinyl chloride resin composition obtained by formulating (a) 1-35 parts by weight of ethylene-vinyl acetate resin, (b) 0.2-5.0 parts by weight of thermal stabilizer, and (c) 0.2-5.0 parts by weight of lubricant to 100 parts of a vinyl chloride mixture consisting of 100-60% by weight of a vinyl chloride resin and 0-40% by weight of chlorinated vinyl chloride resin. The process also provides the vinyl chloride fiber obtained by melt spinning the resin composition described above. The vinyl chloride fiber is useful for an artificial hair fiber for the decoration of hair or a doll's hair fiber such as a doll hair.

Abstract: The present invention relates to titanate compounds of the formula wherein R is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms and x is an integer of from 2 to 8.

Abstract: A carbon black with organic groups in which the organic groups are linked to the black via a sulfide- and/or polysulfide bridge. Furthermore, a method of producing the black of the invention is described in which carbon black and compounds of the general formula R—Sy—R are reacted. The carbon blacks of the invention can be used as filler, UV stabilizer, conductivity black and pigment.

Abstract: The present invention relates to the invention of a masticating agent for the mastication of natural and synthetic rubbers, wherein the masticating agent is a dialkyl polysulfide, which is toxicologically acceptable and has very good masticating properties.

Abstract: Use of solid, rubber-soluble or rubber-dispersible monothiols as stabilizers in melted pressure-sensitive adhesive compositions based on natural rubber or synthetic rubbers, suitable tackifying resins and promoters for increasing the radiation crosslinking yield.

Abstract: A fibrous glass binder that reduces corrosion of polycarboxy based binders, such as polyacrylic acid based binders, on carbon steel. The disclosed binder contains corrosion inhibitors such as tin oxalate, tin sulfate, tin chloride and thiourea.

Abstract: A method and product which provides a solid, non-powdered homogeneous form to liquid and low melting point solid compounds which facilitates stability, storage, dispersability and handling and which may be added directly to formulations requiring the liquid compound or low melting point solid compound. The liquid or low melting point solid ingredient is combined with a binder which is comprised of at least a wax and thermoplastic polymer. During the method of forming the product, both the binder and the liquid compound (or low melting point solid compound) pass through a liquid phase during which they are mixed. The product is then formed and cooled.

Abstract: A polysiloxane composition comprising (A) a polysiloxane having a group represented by the formula (I): ≡Si—OR  (I) wherein, R is a C1 to C18 substituted or unsubstituted monovalent hydrocarbon group or ether bond containing an organic group; and (B) at least 1 ppm of (a) a compound having an N, P, S, Sn, or As component or (b) an acetylene alcohol and a rubber composition containing the same. Specific polysiloxanes (A) contain both formula (I): ≡Si—OR as well as Si—H.

Abstract: This invention describes the use of novel blocked mercaptosilanes, wherein the hydrogen atom of the mercaptan functionality has been substituted, in filled polymers. The blocked mercaptosilanes described are unique in that they allow the mixing of fillers with organic polymers to proceed while remaining inert toward coupling to the polymer. The coupling reactions of these blocked mercaptosilicon compounds are triggered by addition of an appropriate deblocking agent, which preferably is tetramethylthiuram monosulfide.

Abstract: Containers or other apparatus for viscous materials which allow for enhanced drainage or evacuation of the viscous material with a reduction in the amount of residual material that will remain in the container after evacuation. Compositions for making such containers include hydrophobic or poorly hydrophilic polymers and a polar additive. In the method of making such containers, the composition is made moldable and formed into the shape of the container and then cooled.

Abstract: Water-absorbing resin compositions obtained by adding a water-soluble thiol compound in the process of drying or pulverizing a hydrogel of a water-absorbing resin which is obtained by polymerizing a water-soluble monomer having a polymerizable unsaturated group optionally with a polysaccharide, in the presence of a crosslinking agent and water. Composition of the present invention are highly efficient in water absorption and safe for having extremely low amounts of residual monomer and water-soluble component.

Abstract: The invention provides a processing aid and method for lubricating and improving the processability and releasability of rubber and plastic without adversely affecting and, in certain instances, improving the physical properties of the rubber or plastic such as adhesion, tack, modulus and tensile strength. The processing aid comprises a pre-formed homogeneous mixture of at least one silicone fluid lubricant and at least one peptizing agent. A preferred processing aid also includes a silicone fluid wetting agent, which affords decreased vulcanization times and increased production rates.

Abstract: The rubber mixtures according to the invention, containing at least one rubber, a vulcanizing agent, a filler, optionally other rubber additives and at least one reinforcing additive of the formula ##STR1## are used for the production of vulcanized rubbers, from which in particular tires can be produced having a low rolling resistance combined with a good wet skid resistance and a high abrasion resistance.

Abstract: The present invention relates to silica-filled rubber compositions containing dialkyleneamide polysulfides of the formula ##STR1## where R.sup.1 is independently selected from alkylene groups having 1 to 18 carbon atoms and x is an integer of from 2 to 7.

Abstract: The present invention provides a wall for a package, which wall comprises, or includes a layer comprising, a composition comprising a polymer and capable of scavenging oxygen through the metal-catalysed oxidation of an oxidisable organic component thereof. The oxidisable organic component is preferably itself a polymer, and may be the only polymer in the composition. Preferred compositions include a blend of 96% polyethylene terephthalate and 4% poly (m-xylyleneadipamide) containing 200 ppm cobalt as catalyst, with good permeance-versus-time performance (3) when formed into a bottle.

Abstract: A method and product which provides a solid, non-powdered homogeneous form to liquid and low melting point solid compounds which facilitates stability, storage, dispersability and handling and which may be added directly to formulations requiring the liquid compound or low melting point solid compound. The liquid or low melting point solid ingredient is combined with a binder which is comprised of at least a wax and thermoplastic polymer. During the method of forming the product, both the binder and the liquid compound (or low melting point solid compound) pass through a liquid phase during which they are mixed. The product is then formed and cooled.

Abstract: This invention is addressed to olefin polymers having antioxidant properties which are prepared by Ziegler polymerization of one or more monomers containing ethylenic unsaturation along with a polymerizable antioxidant monomer in the form of a substituted norbornene in which at least one substituent contains one or more groups imparting to the molecule antioxidant properties.

Abstract: A rubber composition prepared by the process comprising mixing 100 parts by weight of a rubber selected from EPDM, HNBR, and butyl rubber, and 10 to 300 parts by weight of a carbon black product having an attached organic group. The organic group has the formula --Ar--S.sub.n --Ar'-- in which Ar and Ar' are arylene groups or --Ar--S.sub.n --Ar" in which Ar is an arylene group, Ar" is an aryl group and n is 1 to 8.

Abstract: An addition curing type silicone rubber composition comprising an aliphatic unsaturated group-containing organopolysiloxane, an organohydrogenpolysiloxane and a platinum series catalyst is further blended with a triazine or sulfide control agent to provide a composition which is stable and resistant against premature gelation at room temperature and thus has long-term storage stability. Heating causes the composition to be quickly vulcanized at an acceptable rate into a silicone rubber having satisfactory physical properties.

Abstract: The invention relates to a process for the treatment of the periphery of a glass, more particularly an encapsulated glass, which consists of treating part of the surface of the glass by at least one silane and a composition able to form a layer having free OH groups. This process is useful for treating glass so that a resin, such as a polyurethane, upon contact with the treated glass will readily adhere and bond to the glass. The treated glass can be fitted into car body bays or openings.

Abstract: A thermoplastic molding composition stabilized against .gamma.-rays and its application for manufacture of medical equipment is disclosed. The composition contains an aromatic polycarbonate and(i) dialkyl and/or dicycloalkyl monosulfides or polysulfides in an amount of 0.001 to 5 weight %, and optionally(ii) aliphatic or cycloaliphatic monoalcohols or polyalcohols or their derivatives in an amount of 0.001 to 2 weight %said percent being relative to 100 weight % of aromatic polycarbonate.

Abstract: A curable composition comprising as effect components:(A) 100 parts by weight of at least one member selected from the group consisting of a polyester, an ether ester block-copolymer, a vinyl polymer, a diallyl phthalate compound, a diallyl phthalate copolymer and an epoxy compound, said component (A) having in its molecule at least one silyl group represented by the formula (I): ##STR1## (B) 0.0001 to 50 parts by weight of an organotin compound, and (C) 0.1 to 20 parts by weight of a mercapto group-containing compound. The curable composition has well balanced pot life and curability and provides a cured product having an excellent appearance.

Abstract: Radiation-cured pressure-sensitive adhesives are provided comprising a radiation cured polyurethane backbone capped with both an acrylic or methacrylic reactive terminating group and residues of a mono-ol or polyol non-reactive terminating group. The adhesives include a functional amount of a thio compound which provides for improved control in pressure-sensitive adhesive properties when the adhesive precursor is irradiated.

Abstract: A thermoplastic molding composition resistant to the degradation induced by ionizing-radiation is disclosed. The composition contains an aromatic polycondensate and an agent which is a compound conforming structurally to formula (I) ##STR1## or which is a member selected from the group consisting of oligocarbonate, polycarbonate, copolycarbonate, polyestercarbonate and polyesters which contain structural units conforming to formula (Ia) ##STR2## wherein R.sup.1 to R.sup.10 and X are defined. The composition is suitable for the manufacture of shaped articles, especially articles useful in medical applications.

Abstract: A novel neopentyl .alpha.-cyanoacrylate composition is provided. The composition which includes neopentyl .alpha.-cyanoacrylate has superior adhesive properties even at high temperatures and is characterized by the absence of the whitening phenomenon.

Abstract: Non-toxic polymeric compositions suitable for use in the handling and packaging of foods, beverages or pharmaceuticals, or for use in medical devices, are stabilized against thermal and oxidative degradation with a organosulfide antioxidant having no more than 5 parts per million of free mercaptan groups.

Abstract: This invention relates to a Lewis base catalyzed phase transfer coating process for coating a substrate with an acid substituted polyaniline.

Abstract: Extended polymer compositions are provided which comprise polymers containing pendant functional groups of the formula: ##STR1## extended, i.e. admixed with a chalcogenide having the empirical formula ##STR2## wherein R.sub.1 is a divalent organic radical at least 3 atoms in length, X is organoacyl or cyano, A is a chalcogen, each of R.sub.9 and R.sub.10 is independently selected from hydrogen, NR.sub.11 R.sub.12, NR.sub.13 and monovalent organic radicals, at least one of R.sub.9 and R.sub.10 being NR.sub.11 R.sub.12 or NR.sub.13, each of R.sub.11 and R.sub.12 is independently selected from hydrogen and monovalent organic radicals, and R.sub.13 is a divalent organic radical. These compositions can be extended with significant proportions of the described chalcogenides with corresponding reductions in polymer concentration without significant loss of physical properties. The resulting combinations are particularly useful as binders and coatings.

Abstract: One-piece and multi-layered golf balls are improved in flying performance by forming the one-piece ball entirely or multi-layered golf ball core from a rubber composition comprising a base rubber, an unsaturated carboxylic acid metal salt, and an organic sulfur compound and/or a metal salt thereof.

Abstract: A stereoregular, branched-mono-lolefin polymer composition that has reduced corrosion tendencies is provided. This polymer composition comprises:(a) a stereoregular, branched-mono-1-olefin polymer;(b) tris(3,5-di-t-butyl-40hydroxybenzyl)isocyanurate;(c) poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-s-triazine-2,-4-diyl][(2,2,6,6-t etramethyl-4-piperidyl)imino]hexamethylene-[(2,2,6,6-tetramethyl-4-piperidy l)imino]]; and(d) a hydrocarbylsulfide.

Abstract: Molding compounds based on a thermoplastically processible aromatic polyamide. Molding compounds with an improved stability toward thermal oxidation were attained in that the molding compounds in comparison to polyamides contain chemically inert compounds of the formula I ##STR1## The molding compounds according to the invention exhibit an excellent stability toward thermal oxidation.

Abstract: A method and composition for decreasing the viscosity of mercaptan terminated polymers. The method involves adding thiol terminated trithio-orthoformate polycondensates to the mercaptan terminated polymer to achieve desired decreases in viscosities without adversely affecting other physical properties. The polycondensates have the formula(HS--R--S--).sub.2 CH--S--R'--S[--CH(--S--R"--S).sub.2 --].sub.n (H).sub.xwherein R, R', and R" are alkylene, arylene, alkylene thioether, or alkylene ether, either the same or different; n is 0-10; and x is n+1.

Abstract: A process for processing polymers of the ABS type present in emulsion form and effectively stabilized against oxidative attack with optionally continuous recovery and direct reuse of untreated monomers, wherein a combination of at least one phenolic antioxidant having a molecular weight above 300 without ester groups in the molecule and at least one sulfur-containing co-stabilizer having a molecular weight above 500 without ester groups in the molecule is added to the ABS polymer emulsion for stabilization against oxidative degradation.

Abstract: Hindered phenol stabilized, stereoregular polymers of branched, higher alpha-olefins can be modified with unsaturated silanes, carboxylic acids, and/or carboxylic acid anhydrides in the presence of a free radical generator in the polymer melt. These polymers can also contain additional additives, such as glass fibers. An aliphatic thio compound is added after the grafting procedure for maximum beneficial effect.

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: Thiol compounds are combined with an organometallic halide or metallic halide to provide thermal stability to vinyl halide polymers.

Abstract: The invention is directed to stabilizer compositions, to polymers containing three stabilizer compositions for use as additives in polymers, and to polymeric products which contain these additives. The stabilizer compositions comprise a compositon of: a) at least two hindered phenols and b) a sulfide. These compositions are admixed with polymers to provide polymeric additives to improve the physical and mechanical properties of polymers matrices.

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 rubber vulcanizates according to the invention, which are produced using certain carboxyalkyl oligosulfides, are distinguished by improved hysteresis behavior; their mechanical properties remain substantially unaffected.

Abstract: A resin composition for cleaning the inside of molding machines, capable of easily achieving color exchange and the resin exchange of thermoplastic resins in various molding machines, in a small quantity, by a simple operation and in a short time is provided, which resin composition is a cleaning resin composition having 1-10 wt. % of a polyethylene wax, 1-20 wt. % of a neutral salt of an alkylbenzenesulfonic acid and 1-20 wt. % of an inorganic filler, blended with a high density polyethylene resin having a melt index of 1.0 or less and a Q value expressing a molecular weight distribution, of 10 or less.

Abstract: Phenolic N-(amido)imides are provided which are useful as antioxidant stabilizers for organic materials, including a large variety of synthetic polymers, typically subject to thermooxidative degradation. The antioxidant effectiveness of the phenolic N-(amido)imide stabilizers is enhanced by the deactivating potential of the amido-imide moiety towards metals or metal ions that frequently contaminate polymer compositions and serve to catalyze thermal degradation.

Abstract: This invention concerns a polyolefin resin composition composed essentially of(A) a polyolefin resin,(B) an alkyl disulfide compound represented by formula [I]R.sup.1 --S--S--R.sup.2 [I]wherein R.sup.1 and R.sup.2 are the same or different and each denotes an alkyl group with 10 or more carbon atoms,(C) a triazine compound represented by formula [II] ##STR1## and/or a benzene compound represented by formula [III] ##STR2## According to this invention, there is provided the stabilized polyolefin resin composition that can resistant to heat ageing for a long period of time without discoloring.