Abstract: A method for forming a polymer with a decreased surface energy. The method comprises the steps of mixing from about 99.5% to about 95.0% of a polymer selected from the group consisting of polyolefin and polyester with from about 0.5% to about 5.0% of a surface modifying agent having the structure R.sup.1 --A--Si (R.sup.2 R.sup.3)--O--[Si(R.sup.4 R.sup.5)--O].sub.n --Si--(R.sup.6 R.sup.7)--A--R.sup.8, and forming the mix of polymer and additive to a desired form. R.sup.1 and R.sup.8 are selected from the group consisting of derivatives of aliphatic or aliphatic/aromatic alcohols or mono-acids with a molecular weight of between about 250 to about 600 daltons, and A is selected from the group consisting of --O--, --NH--C(O)--NH--(CH.sub.2).sub.3 --, and --C(O)--NH--(CH.sub.2).sub.3 --. The agent is substantially intimately mixed with the polymer.

Abstract: A process for treating fillers, preferably precipitated silica, to improve the physical property profile of heat curable and room temperature vulcanizable silicone rubbers and a composition for room temperature vulcanizable rubbers comprising the silica filler treated by the process of the invention.

Abstract: The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics.

Abstract: This invention is a blended powder mixture including a thermosetting resin and a solid, non-hydrolyzed, functional low molecular weight organosilane coupling agent. The powder mixture may be used to form a composite coating to protect a steel substrate from corrosion. The composite coating is formed by coating the substrate with an inorganic layer such as a silicate, depositing the powder mixture over the inorganic layer, heating the substrate to a temperature at least equal to the curing temperature of the resin and maintaining the substrate at the curing temperature for sufficient time to crosslink the resin and to diffuse the organosilane to the substrate whereby the crosslinked layer is coupled to the inorganic layer by the organosilane. The powder mixture includes 0.01-10 wt. % organosilane having a melting point no greater than the curing temperature of the resin. Preferred thermosetting resins include epoxy, polyester, epoxy-polyester, acrylic, acrylic-urethane or fluorovinyl.

Abstract: This invention reveals a high performance polybutadiene rubber blend comprised of (a) a first polybutadiene rubber, (b) a second polybutadiene rubber, and (c) a third polybutadiene rubber; wherein the first polybutadiene rubber, the second polybutadiene rubber, and the third polybutadiene rubber are selected from the group of consisting of super-high vinyl polybutadiene rubbers having a vinyl content which is within the range of 80 percent to 100 percent, high vinyl polybutadiene rubbers having a vinyl content which is within the range of 60 percent to 79 percent, medium vinyl polybutadiene rubbers having a vinyl content which is within the range of 35 percent to 59 percent, and low vinyl polybutadiene rubbers having a vinyl content which is within the range of 8 percent to 34 percent; wherein at least three members selected from the group consisting of super-high vinyl polybutadiene rubbers, high vinyl polybutadiene rubbers, medium vinyl polybutadiene rubbers, and low vinyl polybutadiene rubbers are included

Abstract: A rubber composition comprised of elastomer, silica, a silica coupler, 2-mercaptobenzothiazole and, optionally, carbon black, in which the silica, silica coupler and at least a portion of the 2-mercaptobenzothiazole are added in a non-productive mix stage.Pneumatic tires having treads comprised of such rubber composition are provided.

Abstract: A blood separating composition for use in blood collection tubes, the composition having an absolute viscosity of 100,000-320,000 cP at 25.degree. C. at a shear rate of 1 sec.sup.-1 when the blood separating composition turns into its dynamic state from its stationary state, with a reduced viscosity of 50,000 cP or more at a shear rate of 10 sec.sup.-1 in the dynamic state. The absolute viscosity of said composition is 100,000-300,000 cP at the shear rate of 1 sec.sup.-1 when returning to the stationary state. Such a viscosity renders stable and less flowable and blood separating composition during storage, allowing it to form a stable partition barrier in each collection tube when centrifuged to separate the blood phases one from another, with the blood cells above the barrier being prevented from remaining within the serum. The blood separating composition does not release any harmful oily substance or the like.

Abstract: Stable aqueous coemulsions of oxidized polyethylene with amino functional silicone fluids which includes at least one constituent selected from the group consisting of; ethoxylated aliphatic amines, ethoxylated nonylphenols, ethoxylated primary alcohols, ethoxylated secondary alcohols or other nonionic emulsifiers are taught, as well as processes for making the same. The coemulsions may also comprise further constituents, including but not limited to fatty acids, ammonium hydroxide, salts and water. The coemulsions find use in conjunction with textile processing and paper processing.

Abstract: A process for preparing a liquid silicone composition of the type which comprises (A) a diorganopolysiloxane having a viscosity of 1000 to 100,000 centipoises and having at least two reactive groups, (B) a filler mainly composed of SiO.sub.2 having a specific surface area of not smaller than 50 m.sup.2 /g, (C) a diorganopolysiloxane having a viscosity of from 10 to 1000 centipoises and substantially free of any terminal silanol group, (D) hexamethyldisilazane and/or (E) water is described. In the process, 10 to 100 wt % of the (A) and (C) components and 100% of the (B), (D) and, if present, (E) components are mixed under heating conditions of 100.degree. to 250.degree. C. for a time sufficient to obtain a uniform dispersion. If present, the balances of the (A) and (C) components are subsequently mixed with the dispersion.

Abstract: A water-based bonding agent material made of an acrylic polymer or copolymer emulsion, metal salt complexed with an amine and surfactant is useful for unitizing packages having synthetic polymer surfaces.

Abstract: The present invention provides a polyarylene sulfide resin composition having excellent general properties and particularly excellent conductivity and antistatic properties which comprises:(A) 100 parts by weight of a polyarylene sulfide resin,(B) 3 to 50 parts by weight of expandable graphite having an average particle diameter of 5 to 800 .mu.m,(C) 0.01 to 5 parts by weight of an alkoxysilane compound, and(D) 0 to 300 parts by weight of a filler other than the component (B) which is selected from among fibrous, powdery and platy fillers.

Abstract: As a tread rubber of a pneumatic tire is used a rubber composition comprising 10-150 parts by weight of a silica filler, 0-150 parts by weight of carbon black and 0.2-10 parts by weight of at least one specified silane coupling agent, based on 100 parts by weight of a particular polymer rubber having a glass transition temperature of not lower than -50.degree. C. through polymerization of 1,3-butadiene or copolymerization of 1,3-butadiene and styrene with an organic alkali metal initiator, or a rubber blend of not less than 30 parts by weight of the above polymer and not more than 70 parts by weight of the other diene series rubber.

Abstract: A method of improving balance of properties, such as increased reinforcement and reduced rolling resistance of a rubber compound, comprising mixing the rubber compound with a carbon black and a silane coupling agent for a period of between about 10 seconds and 20 minutes at a temperature of between about 160.degree. C. and 180.degree. C. such as a styrene butadiene rubber compound, is disclosed. The method involves mixing the rubber compound "in situ" with a carbon black and Bis(3-triethoxysilylpropyl)-tetrasulfane at ambient temperature.

Abstract: A composition for use as a binder for composite materials comprising a water-compatible furfuryl alcohol-formaldehyde resin and a minor amount of gamma-aminopropyltrimethoxysilane.

Abstract: Addition-curable platinum group metal catalyzed silicone compositions are provided which utilize a bis(trialkyloxysilyl)alpha-amino ester as an adhesion promoter. Cohesive bonding is effected on both plastic and metal substrates at temperatures of about 100.degree. C. in an hour or less.

Abstract: Disclosed herein are electronic device sealing resin compositions containing (A) 40-25 parts by weight of a thermoplastic resin composed of 100-10 wt. % of a poly(arylene thioether-ketone) and 0-90 wt. % of a poly(arylene sulfide), (B) 60-75 parts by weight of an inorganic filler, and per 100 parts by weight of the sum of the thermoplastic resin (A) and inorganic filler (B), (C) 1.5-5 parts by weight of a silicone oil, (D) 10-15 parts by weight of a silicone rubber or (C) 0.5-3 parts by weight of a silicone oil and (D) 5-13 parts by weight of a silicone rubber. Electronic devices sealed using such resin compositions are also disclosed.

Abstract: A method for forming a polymer with a decreased surface energy. The method comprises the steps of mixing from about 99.5% to about 95.0% of a polymer selected from the group consisting of polyolefin and polyester with from about 0.5% to about 5.0% of a surface modifying agent having the structure R.sup.1 --A--Si(R.sup.2 R.sup.3)--O--[Si(R.sup.4 R.sup.5)--O].sub.n --Si--(R.sup.6 R.sup.7)--A--R.sup.8, and forming the mix of polymer and additive to a desired form. R.sup.1 and R.sup.8 are selected from the group consisting of derivatives of aliphatic or aliphatic/aromatic alcohols or mono-acids with a molecular weight of between about 250 to about 600 daltons, and A is selected from the group consisting of --O--, --NH--C(O)--NH(CH.sub.2).sub.3 --, and --C(O)--NH--(CH.sub.2).sub.3 --. The agent is substantially intimately mixed with the polymer.

Abstract: The invention relates to a tire with a tread which is reinforced with silica where the tread rubbers are of a blend of emulsion SBR with medium to high styrene content, isoprene/butadiene copolymer rubber, cis 1,4-polybutadiene rubber and natural rubber.

Abstract: The introduction of a room-temperature-curable organopolysiloxane composition that cures at room temperature to give a rubber whose surface is easily coated with paint and from which the resulting paint film does not delaminate readily and that after curing is free from staining of the surface of the rubber and any substrates in contact with the rubber.

Abstract: A rubber formulation including (a) a hydrogenated nitrile rubber, (b) an organopolysiloxane, (c) a cross-linking controller selected from (i) an ester or polyester of acrylic or methacrylic acid with a polyhydric alcohol, (ii) an amide or polyamide of acrylic or methacrylic acid with a polyamine, (iii) an alkoxysilane having a C.dbd.C double bond, an amino group or a mercapto group and (iv) triallyl isocyanate, (d) an optional filler, and (e) a peroxide crosslinking agent. The rubber formulation is prepared by mixing together (a') a hydrogenated nitrile rubber composition having added therein an optional filler, (b') an organopolysiloxane composition having added therein an optional filler, and (c) the crosslinking controller, and thereafter adding (e) the peroxide crosslinking agent.

Abstract: The release agent compositions of the present invention comprise mixtures of amino-functional and amine-free polydimethylsiloxanes wherein the viscosity, amine equivalent and content of dimethylsiloxane oligomers containing up to 20 silicon atoms are within specified limits. The compositions do not evolve oily volatiles or silicon dioxide powder even during exposure to elevated temperatures.

Abstract: A protective coating is made by polymerizing in water an amino oxysilane having at least one primary amine group to control pH and water solubility, the amino oxysilane comprising a saturated or unsaturated hydrocarbon group containing up to 12 carbon atoms, and having multiple hydrolyzable side groups selected from the group consisting of alkyl, aryl, alkaryl, alkoxy and alkoxyalkyl groups having from 1 to 6 carbon atoms, where the number of repeating units of the oxysilane is in the range of from 1 to 3, and metal silicates comprising a cation from the group consisting of alkali metals and alkaline-earth metals, the metal silicate having multiple hydroxy side groups to facilitate polymerization.

Abstract: Addition-curable platinum group metal catalyzed silicone compositions are provided which utilize a bis[trialkyloxysilylalkylene]amine or urea adhesion promoter. Cohesive bonding can be effected on both plastic and metal substrates at temperatures of 100.degree. C. or below in less than 1 hour.

Abstract: The invention relates to readily processible polyamide molding compounds which have very good mechanical and electrical properties as well as high surface quality and are based on polyamide, magnesium hydroxide and polyhydroxy compounds of the Novolak type.

Abstract: There is disclosed a polyamide molding composition characterized by excellent moldability, release and lubricity, said composition comprising:(A) 100 parts by weight of a polyamide resin;(B) 0.1 to 120 parts by weight of a polydiorganosiloxane that contains neither carboxyl nor amino groups; and(C) a polysiloxane selected from the group consisting of carboxyl-containing polydiorganosiloxane and amino-containing polydiorganosiloxane, the amount of said polysiloxane (C) being 0.01 to 50 parts by weight for each 100 parts by weight of said component (B).

Abstract: By blending a silazane with an organic silicon polymer such as polycarbosilane and polysilazane and inorganic powder such as alumina and silica, there is obtained a coating composition which can be applied and baked onto metallic and non-metallic substrates to form dielectric coatings which are improved in many properties including substrate adhesion, hardness, electrical insulation, heat resistance, water resistance, and chemical resistance.

Abstract: Addition-curable platinum group metal catalyzed silicone compositions are provided which utilize an N-heterocyclic adhesion promoter, such as bis(trimethoxysilyltrimethylene) 2,6 pyridine dicarboxylate. Cohesive bonding is effected on both plastic and metal substrates at temperatures of less than 100.degree. C. and in less than 1 hour.

Abstract: The present invention relates to waterproofing sealer compositions that protect various types of porous substrates from deterioration due to water absorption and thus extend their useful lives. Example of porous substrate are concrete, brick, masonry, ceramics, stones, cloth, wood and the like. These waterbased compositions comprise alkali metalalkylsiliconates, alkali silicates, polymers, diluents and additives.These sealer compositions do not change appearance and character of the substrate surface.

Abstract: This invention relates to polymers having enhanced hydrophilicity and thermal regulative properties. Exemplary polymers include aliphatic polyamide polymers and polyester polymers. The polymer has bonded thereto a hydrophilic polysiloxane having an affinity for the polymer and having a molecular weight greater than about 1000 g/mol preferably greater than about 2000 g/mol, and preferably greater than about 4000 g/mol. The polymer has substantially no polymerization with the hydrophilic polysiloxane. Alternatively, an aliphatic polyamide polymer is provided having enhanced hydrophilicity and thermal regulative properties. The polymer has bonded thereto an anionic hydrophilic polysiloxane having an affinity for the aliphatic polyamide polymer. The aliphatic polyamide polymer has substantially no polymerization with the anionic hydrophilic siloxane.

Abstract: The invention provides a silicone rubber composition which is efficiently curable by exposure to microwaves but, different from conventional microwave-curable silicone rubber compositions compounded with a deep-colored energy-absorbing agent, is still capable of being colored in any desired color because the energy-absorbing agent compounded therein is not colored. The energy-absorbing agent used here is a silica or polyorganosilsesquioxane powder having cyanoalkyl or fluoroalkyl groups bonded to the silicon atoms.

Abstract: The present invention provides a water-curable resin composition for use in the preparation of composite materials. The resin composition is composed of a water-reactive liquid organometallic compound having a viscosity of no greater than about 500,000 centipoise under ambient conditions; and a nonreactive organic thermoplastic polymer, having a number average molecular weight of at least about 1,000, mixed with the water-reactive liquid organometallic compound. Preferably, the water-reactive liquid organometallic compound is a compound of the formula (R.sup.1 O).sub.x MR.sup.2.sub.(y-x) wherein: each R.sup.1 is independently a substituted or unsubstituted C.sub.1 -C.sub.100 hydrocarbon group, optionally interrupted in the backbone by 1--10 nonperoxide--O--, --S--, --C(O)--, or --N-- groups; each R.sup.2 is independently selected from the group consisting of hydrogen and a substituted or unsubstituted C.sub.1 -C.sub.

Abstract: Addition-curable platinum group metal catalyzed silicone compositions are provided which utilize a bis(trialkoxysilylalkyleneoxycarbonylalkylene)amine adhesion promoter, such as NH[CH.sub.2 CH.sub.2 C(O)OCH.sub.2 CH.sub.2 CH.sub.2 Si(OCH.sub.3).sub.3 ].sub.2. Cohesive bonding is effected on both plastic and metal substrates at temperatures of 100.degree. C. or less and in 1 hour or less.

Abstract: A pneumatic tire with a tread comprised of elastomer, silica, optionally carbon black, and a silica coupler comprised of dithiodipropionic acid.

Abstract: An aqueous starch oil sizing composition is provided which produces improved processibility in woven and non-woven applications. The sizing combines a high amylose corn starch which has been derivatized with propylene oxide, with a low amylose highly crosslinked corn starch. The sizing also includes lubricants which may be oils or waxes and a lubricant which is the salt of a polyamino functional polyamide resin. Other emusifiers, humectants, lubricants, defoamers, and biocides may be present. The size also includes a silane coupling agent such as gamma glycidoxy propyl trimethoxy silane which can be hydrolyzed. Strands of glass fiber which have been treated with this size have shown a reduced tendency to shed the size from the strands, a reduction in the buildup of broken filaments or "fuzz" on processing equipment and reduced strand breakage.

Abstract: A synthetic resin-coated metal pigment such as aluminum pigment has a silne coating covalently bonded to the surface of the pigment particles, and a three-dimensionally cross-linked synthetic resin coating covalently bonded to the siloxane coating. Production of the coated pigment comprises production of a silicon-organic coating on the pigment surface and then conversion of that coating into a siloxane coating by hydrolysis and condensation, followed by reaction with a low-molecular compound for forming the cross-linked synthetic resin coating. A range of uses of the coated pigment is also set forth.

Abstract: Disclosed herein are electronic device sealing resin compositions containing (A) 40-25 parts by weight of a thermoplastic resin composed of 100-10 wt. % of a poly(arylene thioether-ketone) and 0-90 wt. % of a poly(arylene sulfide), (B) 60-75 parts by weight of an inorganic filler, and per 100 parts by weight of the sum of the thermoplastic resin (A) and inorganic filler (B), (C) 1.5-5 parts by weight of a silicone oil, (D) 10-15 parts by weight of a silicone rubber or (C) 0.5-3 parts by weight of a silicone oil and (D) 5-13 parts by weight of a silicone rubber. Electronic devices sealed using such resin compositions are also disclosed.

Abstract: A rubber composition comprised of elastomer, silica, optionally carbon black and a silica coupler comprised of dithiodipropionic acid.

Abstract: Stable aqueous coemulsions of oxidized polyethylene with amino functional silicone fluids which includes at least one constituent selected from the group consisting of; ethoxylated aliphatic amines, ethoxylated nonylphenols, ethoxylated primary alcohols, ethoxylated secondary alcohols or other nonionic emulsifiers are taught, as well as processes for making the same. The coemulsions may also comprise further constituents, including but not limited to fatty acids, ammonium hydroxide, salts and water. The coemulsions find use in conjunction with textile processing and paper processing.

Abstract: The invention relates to aqueous dispersions containing aminooxy crosslinking agents, of copolymers containing carbonyl groups, to processes for the preparation thereof and to the use thereof as a crosslinking system in binders, adhesives and coating agents.

Abstract: A polyarylene sulfide resin composition useful for molding articles is obtained by mixing and melt kneading a polyarylene sulfide resin, a polyamide resin, a silane compound and either water or an alcohol having a boiling point of at least 100.degree. C.

Abstract: The present invention relates to a process for the conditioning and/or purification of organic isocyanates bya) mixing organic isocyanates at 20.degree. to 150.degree. C. with 0.001 to 1 mole %, based on the isocyanate, of a silylated acid corresponding to the formulaX-[Si(CH.sub.3).sub.3 ].sub.nwhereinX represents the neutral acid residue obtained by removing the acidic hydrogen atoms from an n-basic acid having a pKa value of at most 3, with the exception of hydrohalic acids andn is an integer from 1 to 3, andb) optionally working up the resulting mixture by distillation after a residence time of at least 5 minutes.

Abstract: A fluid-permeable agent for providing fluid-permeability to non-woven sheets of polyolefin fibers contains 50 wt % or more of polyoxyalkylene modified silicone shown by Formula (A) given below: ##STR1## where x is an integer in the range of 1-10, y is an integer in the range of 7-100, a is an integer equal to or greater than 5, b is an integer equal to or less than 95, (a+b) is an integer equal to or less than 100 and R.sup.1 is H or alkyl group with 1-12 carbon atoms. The agent may additionally contain surfactants of certain specified kinds and is applied at a rate of 0.1-0.5 wt % with respect to the fibers for good results.

Abstract: Disclosed is a novel polypropylene resin composition which is outstandingly free from surface tackiness and still has good transparency so as to be useful as a material of resin films used for wrapping. The resin composition comprises, as a uniform blend, (a) 100 parts by weight of a polypropylene resin, and (b) from 0.01 to 10 parts by weight of an inorganic oxide powder which is a product obtained by the deflagration of an inorganic oxidizable powder, e.g., an elementary silicon powder, in an oxidizing atmosphere such as air. By virtue of the unique method for the preparation of the silicon dioxide powder, the particles have high surface activity so that the surface properties of the resin composition or, in particular, resin films prepared therefrom can be greatly improved even with a relatively small amount of the inorganic oxide powder compounded as an anti-blocking agent not to badly affect the transparency.

Abstract: The invention relates to a flame retardant plastics composition and based on a polyamide, a polyolefin, and magnesium hydroxide of the following composition:(1) 5 to 52 wt. % of a polyamide (PA),(2) 8 to 55 wt. % of a polyolefin (PO) composition comprising polypropylene at least partially functionalized with a compound containing an ethylenically unsaturated group and/or a propylene group and a carboxylic acid group, acid anhydride group, acid amide group, imido group, carboxylic ester group, amino group, or hydroxyl group, and(3) 40 to 70 wt. % of magnesium hydroxide particles in platelet form having a specific surface area of not more than 18 m.sup.2 /g.A major portion of the compositions according to the invention satisfies the Underwriters Laboratories Inc. V.sub.0 rating and the compositions also stand out through favorable rheological behavior and the fact that articles made from them by injection moulding have an exceptionally smooth surface.

Abstract: Fiber reinforced poly(arylene sulfide) compositions are provided which contain at least one azidosilane. The incorporation of the azidosilane results in a composition exhibiting improved tensile strength, flexural strength, and impact strength.

Abstract: Solutions of polycondensates which have N-containing heterocyclic ring systems as structural units, or solutions of intermediates of these polycondensates, in inorganic solvents, contain from 0.1 to 20% by weight, based on the polycondensates or the intermediates thereof, of one or more azidosilanes of the general formulaN.sub.3 --R.sup.3 --Si--R.sup.1.sub.n (OR.sup.2).sub.3-n Iwhere R.sup.1 is C.sub.1 -C.sub.3 -alkyl, phenyl, benzyl or toluyl, R.sup.2 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkoxyalkyl, phenyl or benzyl, R.sup.3 is C.sub.1 -C.sub.8 -alkylene which may be interrupted by an oxygen atom, a sulfur atom or a --(N--R.sup.4) -group, where R.sup.4 is hydrogen, methyl, ethyl or phenyl, and n is 0, 1 or 2.

Abstract: When a dispersion of oxide ceramic particles in certain volatile organic solvents is mixed with less than about 2 percent by weight (based on the weight of particles) of an oligomeric polysiloxanol dispersant, and the dispersion allowed to settle, the oligomer provides a multiplicity of OH groups, many of which are available for interactive bonding to the surfaces of the particles. The net result is that the particles settle more slowly; also, the sediment has a density higher than that of sediment from a dispersion of the same particles in the same solvent mixed with the monomeric silane from which the oligomer was formed. Exceptionally dense and strong "tape", for making sintered circuitized multilayered ceramic structures, is produced by capitalizing on this phenomenon. The effectiveness of the oligomer is predicated upon the prehydrolysis of the siloxane, prior to forming the dispersion.

Abstract: A process for producing a polyolefin thermoplastic elastomer composition having superior rubbery elasticity, mechanical properties, etc. and also having improved processing fluidity, workability, etc. is provided, which process comprises blending(A) 40 to 80% by weight of an ethylene-propylene copolymer rubber and/or an ethylene-propylene-diene terpolymer, as a soft segment component,(B) 60 to 20% by weight of a crystalline ethylene-propylene block copolymer having an ethylene content of at least 5% by weight and a melt flow index of 0.5 to 30 g/10 minutes or a crystalline ethylene-propylene random copolymer having an ethylene content of at least 1.5% by weight and a melt flow index of 0.5 to 30 g/10 minutes, each as a hard segment, and based upon 100 parts by weight of the total of (A) and (B),(C) 0.3 to 5 parts by weight of an organosilane,(D) 0.

Abstract: A curable coating composition comprising(A) from 10 to 99 parts by weight of a silyl group-containing vinylic polymer having a number average molecular weight of at least 3,000, the main chain thereof being substantially composed of a vinylic polymer chain and having at least one silicon atom bonded to a hydrolyzable group at a terminal of the main chain and/or at a side chain in each molecule,(B) from 1 to 90 parts by weight of an organic compound having a number average molecular weight of not larger than 3,000 and having at least one silicon atom bonded to a hydrolyzable group at a terminal in each molecule, and(C) from 1 to 500 parts by weight of silanol-containing organopolysiloxane having, on an average, at least one sianol group in one molecule to 100 parts by weight of the total amount of the component (A) and the component (B).

Abstract: Moulding materials vulcanizable by means of the action of heat which contain a thiocyanatopropyltrialkoxysilane and a method of their manufacture are disclosed.