Abstract: Disclosed is a method of forming a polyimide coating in a pattern on a surface. A first solution is prepared of an organic solvent, and diamine and dianhydride monomers. The monomers are polymerized to form a polyamic acid that is soluble in the organic solvent. About 10 to about 95% of the amic acid groups in the polyamic acid are imidized, forming a partially imidized polyamic acid. A more concentrated solution of the partially imidized polyamic acid is prepared and about 0.1 to about 10 wt % of a thixotrope is mixed with the more concentrated solution to form a paste. A template is placed over the surface and the paste is forced through the template onto the surface. The solvent is evaporated and the partially imidized polyamic acid on the surface is fully imidized.

Abstract: The silicone rubber composition of the present invention comprises (A) an organopolysiloxane obtained by mixing and heating an organopolysiloxane having a silanol group at both ends of the molecular chain and a silane or a siloxane having two hydrolyzable groups in the molecule, (B) a finely divided silica, and (C) a curing agent. The composition, wherein the content of low-molecule siloxanes is remarkably constrained, is quite useful in the application wherein low-molecular siloxanes are obnoxious, for example, in the application of electrical contacts and parts used adjacent thereto, roll materials of copying machines, gaskets for construction, etc.

Abstract: An aqueous primer composition comprising a copolymer wherein a cationic monomer, a specific alkoxysilane monomer, a silane macromonomer and an ethylenically unsaturated monomer are contained in aqueous medium. For this reason, regardless of the alkalinity of the substrate, the aqueous primer composition can form a highly water-resistant, alkali-resistant, tough film. Furthermore, compared with the prior art, a higher concentration and a lower viscosity, so that the resulting primer composition shows excellent penetration into the substrate at high concentration and provides for sufficient substrate-reinforcing and water-proofing effects. Moreover, when forming a film thereby and forming a finish layer thereon, this composition shows a high affinity for the top coating or adhesive to insure a firm integration of the finish layer with the substrate surface.

Abstract: A non-crosslinked endblocked polymer, comprising a preformed aqueous emulsion having a plurality of silanol-terminated polydiorganosiloxane particles, an endcapping silane having the formula R.sub.3 SiX where X is a hydrolyzable group, R is an alkyl group consisting of 1 to 7 carbon atoms, and an organotin catalyst. The composition results in a non-crosslinked polymer, unlike the polymers described in the prior art. It has been found that adding an endblocking silane having only one hydrolyzable group to a preformed polydiorganosiloxane emulsion results in endblocked polydiorganosiloxane molecules free of crosslinks between the polydiorganosiloxane chains.

Abstract: The present invention relates to acetoxy, ketoximo, and alkoxy silicone sealants suitable for use in various sealant applications and additionally food contact applications comprising di-iodomethyl-para-tolylsulfone and having physical properties improved thereby.

Abstract: Hard surfaces are polished by applying an abrasive free, preferably clear, composition formed from an aqueous phase and a silicone phase. The aqueous phase contains water and a water soluble hydrophilic organic solvent. The silicone phase contains a volatile methyl siloxane, a siloxane polyether, and an organosilicon resin.

Abstract: An organopolysiloxane composition contains (A) a both end hydroxyl-blocked diorganopolysiloxane, (B) an inert diorganopolysiloxane, (C) a silane or siloxane having at least three hydrolyzable functional groups, (D) an organosilane having at least two alkoxy groups each attached to a silicon atom and one mercapto group separated from a silicon atom by an alkylene group or a partial hydrolyzate thereof, (E) an organosilane having at least two alkoxy groups each attached to a silicon atom and one amino group separated from a silicon atom by an alkylene group or a partial hydrolyzate thereof, (F) a condensation catalyst, and (G) a fine powder, typically of polycarbonate, having a mean particle size of 0.1-50 .mu.m. The composition is useful as a surface treating agent for cured rubber moldings for imparting non-tackiness, water repellency and lubricity to the rubber surface and forming a long-lasting abrasion resistant coating.

Abstract: The present invention relates to an organopolysiloxane emulsion composition comprising a hydroxy or alkoxy-endblocked diorganopolysiloxane, an alkoxy-group containing organosilicon compound, surfactant, and water. The compositions of this invention are characterized by a lack of offensive odor, high productivity and good storage stability. The organopolysiloxane emulsions of this invention are useful as fiber treatment agents. The fibers treated with the organopolysiloxane emulsion of this invention exhibit good feel.

Abstract: A room temperature vulcanizing alkoxy curing silicone composition cured by a dual catalyst system comprising either (C.sub.4 H.sub.9)Sn(O.sub.2 CCH.sub.3)(O.sub.2 C(CH.sub.2).sub.10 CH.sub.3) or an approximately equimolar mixture of dibutyltin diacetate and dibutyltin dilaurate or mixtures thereof whereby tooling time is increased without deleterious effects upon cured performance properties.

Abstract: A method for continuously producing a room temperature vulcanizable composition is disclosed. A base mixture of a silanol stopped fluorosilicone polymer, a silica filler and iron oxide are processed in an extruder at an elevated temperature between about 50.degree. and 200.degree. C. Thereafter, a tin based catalyst, an acetoxy cross-linking agent and an optional adhesion promoter are added to the extruder near the exit port. The resulting material has improved storage stability.

Abstract: A condensation curing type room temperature curable organopolysiloxane composition, comprising (A) a diorganopolysiloxane the both ends of the molecular chain of which are terminated with a hydroxyl group, (B) an organosilicon compound containing at least three hydrolyzable groups bonded to a silicon atom in the molecule or its partial hydrolysis-condensation product, (C) an alkoxysilane having a fluorine-containing organic group, and (D) aluminum hydroxide. This composition can form a cured product excellent in soil resistance and can keep favorably the tracking resistance for a long period of time. Particularly, the composition is quite useful as a protective coating material for high voltage power supply parts used outdoors.

Abstract: This invention provides a primer composition comprising (A) a polyorganosiloxane resin containing at least 0.01 mole of hydroxyl groups per 100 g of the resin represented by the average composition formula: (R.sup.1).sub.a SiO.sub.(4-a)/2 wherein each R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group, and a is a value of 0.4 to 1.8; (B) an alkoxytitanium or a partially hydrolyzed product thereof; (C) an acid; and (D) a solvent. The primer composition can strongly adhere a condensation type room temperature curable silicone elastomer to the surface of the coated metal formed by applying a fluororesin coating, an acrylic resin coating or the like to a metal.

Abstract: A room temperature curable rubber composition of a condensation curing type that comprises as a base polymer a diorganopolysiloxane or a polyoxyalkylene in which both ends of the molecular chain are blocked with a hydrolyzable silyl group, and a .beta.-dicarbonyl compound and an amino group containing organic compound that are blended with the base polymer. Since the room temperature curable rubber composition is cured with water in the air and at the same time the dehydration condensation of the .beta.-carbonyl group and the amino group produces water in the composition, the quick curability and deep curability are improved remarkably. In addition, since this dehydration condensation reaction is an irreversible reaction, the product produced by the condensation dehydration is hydrolyzed to prevent the amino group containing compound from being regenerated, and as a result the hydrophilic nature of the cured product is prevented from increasing not to damage the water resistance.

Abstract: The introduction of a room-temperature-curable organopolysiloxane composition that exhibits tack during the course of its cure and that forms a cured product strongly adherent to a variety of substrates when cured while in contact with substrate. Also, the introduction of a method for the preparation of this room-temperature-curable organopolysiloxane composition.

Abstract: The aqueous emulsions based on(a) 100 parts by weight of organopolysiloxanes which contain polar groups on Si--C-bonded hydrocarbon radicals and(b) not more than 50 parts by weight of alkyl polyglycosides which are stable toward high concentrations of foreign electrolytes.

Abstract: A conductive silicone rubber composition is prepared by mixing an organopolysiloxane having an aminoalkyl radical, an organopolysiloxane having a (meth)acryloxyalkyl or glycidoxyalkyl radical, and conductive carbon black to form silicone rubber composition (A) in which the carbon black is fixed, and then mixing it with a silicone rubber composition (B) comprising a dimethylpolysiloxane. The composition has stable resistivity in the semiconductive region independent of molding conditions.

Abstract: An aqueous silicone emulsion which yields an elastomer upon removal of the water comprises a polydiorganosiloxane having alkoxysilyl endblocking groups with at least two alkoxy groups attached to the silicon atom, titanium catalyst, and optionally, a filler.

Abstract: This invention relates to one-component silicone systems (herein referred to as 1-C-RTV compounds) which cure rapidly under the effect of moisture with elimination of certain carbonamides, develop good adhesion to many substrates in the process and give vulcanizates that are stable under extreme climatic conditions.

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 room temperature curable polyorganosiloxane composition according to the present invention, which comprises the following components, is superior in handleability and affords a cured product superior in mechanical characteristics, particularly tear strength:1 100 parts by weight of a polyorganosiloxane having at least two silanol groups in one molecule;2 1-25 parts by weight of an organosilane or organosiloxane having in one molecule at least three hydrolyzable groups attached to silicon atom;3 0.01-10 parts by weight of a curing catalyst; and4 5-500 parts by weight of ultra-fine titanium oxide particles.

Abstract: A sealant or mastic composition comprises a dispersion of a finely divided particulate solid in a silicone resin formulation which contains a dispersant containing at least one group of the formula--(O--A--CO).sub.n --.The dispersant may be derived from a hydroxycarboxylic acid and preferably has a --COOH end group. The dispersant modifies the shear properties of the sealant.

Abstract: A room-temperature-curable organopolysiloxane composition having a highly durable adhesion that bonds well to various substrates, e.g. glass, plastics, and metals, through contact-curing and exhibits an excellent early-cure adhesiveness and that cures to give a silicone rubber that is highly water-resistant and exhibits long-term retention of its bonding strength even in hostile ambients, e.g. immersion in hot water, comprises a composition of a hydroxyl-terminated or alkoxy-terminated organopolysiloxane, an inorganic filler, a rosin ester in which the ester is a polyol, a reaction mixture from aminoalkylalkoxysilane and epoxyalkylalkoxysilane, and a curing catalyst.

Abstract: There is disclosed a novel silicone emulsion useful as a mold coating in aluminum die casting operations. The silicone emulsion of the invention comprises an aqueous dispersion of an organopolysiloxane of a particular general formula in combination with an alkyl diphenyl ether disulfate salt. The novel silicone emulsion of the invention exhibits stability even when diluted tens of times and subjected to mechanical shear. When applied to a heated mold surface, water is driven from the silicone emulsion and there is formed a oil film. The oil film allows for easy release of the cast part. Furthermore, the film exhibits good paintability and lubricity under extreme pressure.

Abstract: Silicone mold compositions are provided which exhibit low durometer and high tear strength properties and comprise a main filler of precipitated silica and a reinforcing co-filler selected from acicular CaSiO.sub.3 fillers, fumed aluminum oxide fillers, and spherical ceramic fillers. The co-fillers have large surface areas and small particle sizes. The co-fillers are used with alkoxy silane cross-linking agents of the formula (RO).sub.4 Si, particularly n-propylsilicate. Two-part silicone cure systems are provided which enable the rapid achievement of full die B tear strengths without the need for prolonged aging of these materials.

Abstract: A silicone rubber composition comprising (A) an organopolysiloxane, (B) an organic peroxide and (C) carbon black cures under anaerobic conditions into silicone rubber having improved physical properties. A composition further comprising (D) an organopolysiloxane copolymer consisting essentially of M and Q units in a molar M/Q ratio of 6/10 to 9/10 forms an anaerobic adhesive composition which is a useful sealant.

Abstract: A method of producing 0.01 to 70 wt. % aqueous solutions of sulfonated organosilicon compounds having the formula[(HO).sub.3 Si-R.sup.1 -SO.sub.3.sup.- ].sub.x M.sup.x+ (I)or oligomeric siloxane derivatives thereof, condensed via oxygen bridges. The solution optionally also contains compounds of formula (III) e.g., Si(OH).sub.4 or Al(OH).sub.3, or the like, or derivatives thereof condensed via oxygen bridges. The ratio of Si atoms of formula (I) to the sum of Si and/or Al atoms of formula (III) is 1:0 to 1:3, and the total concentration of compounds (I)+(III) is 0.01 to 70 wt. %. The starting material for the method is a polymeric di-, tri-, or tetrasulfane compound made up of units having the formula: ##STR1## wherein R.sup.1 has the same meaning as in formula (I), and y=2, 3 or 4. The starting material of formula (IV) is suspended in water. The suspension is mixed at 10.degree. to 100.degree. C. with hydrogen peroxide and is then agitated at 30.degree. to 150.degree. C.

Abstract: The electrical conductivity of room temperature curable compositions containing at one polyorganosiloxane, a curing agent and certain light colored electrically conductive fillers is increased while maintaining the viscosity at desirably low levels and not adversely affecting the physical properties of the cured composition when the curable polyorganosiloxane is blended with the curing agent prior to addition of the filler.

Abstract: A thermosetting printing ink composition comprising a functional copolymer of a thermosettable polyester and a polysiloxane, a pigment, a crosslinking agent and a curing catalyst which may be a strong acid or a metal salt thereof. The composition desirably also includes a reactive diluent such as a glycol, glycol ether or alcohol. The compositions are especially useful for imprinting metal containers such as beer and soda cans.

Abstract: A room temperature curable silicone composition comprising(A) an organopolysilethylenesiloxane represented by the following general formula (1): ##STR1## wherein R.sup.1 to R.sup.4 each represent a monovalent hydrocarbon group having 1 to 10 carbon atoms, and n is an integer of 10 or over,(B) an organosilane or an organosiloxane having at least two hydrolyzable groups in the molecule, and(C) at least one ultraviolet absorbing agent and antioxidant. The cured product formed from this composition exhibits good soil resistance for a long period of time and soiling of the surface of the cured product and its surroundings due to dust or the like in the air can be obviated effectively.

Abstract: A highly transparent silicone paste composition is formulated by mixing:(a) 100 parts by weight of a long chain alkyl-modified silicone fluid having a viscosity of 50-5,000 cS at 25.degree. C. represented by the formula ##STR1## wherein R.sup.1 is a monovalent saturated straight chain hydrocarbon group having 4-18 carbon atoms and accounts for 10-50 mol % of all the Si substituents; m and n are integers such that 0.ltoreq.m.ltoreq.500, 5.ltoreq.n.ltoreq.500, and 5.ltoreq.m+n.ltoreq.500, and a and b are either 0 or 1;(b) 1-30 weight parts of a fumed silica whose specific surface area is no less than 130 m.sup.2 /g; and(c) 0.1-20 weight parts of an alkoxysilane represented by the formula X.sub.c Si(CH.sub.3).sub.d R.sup.2.sub.e, wherein R.sup.2 is an alkoxy group; X is selected from ##STR2## c is 0 or 1; d is 0, 1 or 2; e is 2 or 3; and c+d+e=4, or a hexamethyldisilazane represented by the formula [(CH.sub.3).sub.3 Si].sub.2 NH.

Abstract: A shelf stable aqueous silicone emulsion which yields an elastomer upon removal of the water is produced by combining a reactive polydiorganosiloxane present as an cationic or nonionic emulsion of dispersed particles in water, an acyloxysilane crosslinker, and a tin catalyst, the tin catalyst being in the form of a divalent tin atom combined with organic radicals. The emulsion can be reinforced with colloidal silica without effecting the shelf life of the reinforced emulsion.

Abstract: An aqueous reaction mixture having a pH of 4.5 to 5.5 of a multi-functional polydimethyl siloxane emulsified polymer, a methyl triethoxy silane, a mixture of substituted nonyl and octyl phenol derivative surfactants, non-ionic fluorinated alkyl ester surfactant and synthetic ethoxylated amine surfactants, a silanol terminated polydimethyl siloxane and ethanol. The reaction mixture is coated on a mold core surface and cured with heat to form a mold release surface that can be used in excess of twenty times prior to recoating.

Abstract: A room temperature-curable organopolysiloxane composition which does not suffer from surface fissuring even when subjected to external stress (e.g., tensile stress, flexural stress) during the course of its cure was prepared and has a composition of a hydroxyl-terminated polydiorganosiloxane, a hydrophobic silica with a silanol titer not exceeding 2.0 mL, a dry-method silica with a silanol titer of at least 5.0 mL, and an oxime group-containing silane or siloxane.

Abstract: A mold-releasable curable organopolysiloxane composition suitable for use as a material of a matrix mold having excellent durability of mold releasability in the preparation of replicas by resin casting is disclosed. The composition comprises, in addition to the conventional ingredients including a vinyl-containing diorganopolysiloxane, an organohydrogenpolysiloxane as a crosslinking agent of the diorganopolysiloxane, a reinforcing silica filler and a platinum compound as a catalyst, a strongly alkaline compound of an alkali metal such as potassium hydroxide, potassium siliconate, lithium siliconate and the like in a limited amount.

Abstract: The present invention relates to a release coating composition comprising (a) about 1 to about 100 percent by weight of a particular polysiloxane polymer (I), (b) about 0 to about 99 percent by weight of a silane of a particular formula (II) or hydrolyzates thereof, and (c) about 1 to about 15 percent by weight of a component selected from the group consisting of acids, anhydrides of acids, ammonium and lower alkyl salts of acids and mixtures thereof wherein the acids each have pKas of less than about 3.

Abstract: A room temperature vulcanizable organopolysiloxane composition comprises (A) a diorganopolysiloxane which is blocked with an alkoxy group at both ends of a molecular chain thereof, (B) a tri or tetraalkoxysilane, (C) a titanium curing catalyst, (D) a silica filler, and (E) an alkoxysilane which is less hydrolyzable than the alkoxysilane of (B). The composition yields a cured product having high strength and high elongation and is low in viscosity and extrusion rate. A method for preparing the composition is also provided in which the ingredients (A) to (D) are first mixed together, to which the ingredient (E) is added.

Abstract: A defoamer composition is obtained when a mixture of certain siloxane-containing components, a finely divided filler, a reaction catalyst and at least one compound having in each molecule at least 1 group expressed by --COR.sup.5, --COOR.sup.6 or --(OR.sup.7).sub.n -- is heated. R.sup.5 and R.sup.6 are the hydrogen atom or saturated or unsaturated monovalent hydrocarbon groups, R.sup.7 is a divalent hydrocarbon group having two to six carbon atoms, and the average value of n is at least 1. The siloxane-containing components comprise resinous polyorganosiloxanes and typically, polydiorganosiloxanes. The heated mixture is useful for defoaming anionic systems.

Abstract: A composition comprising the reaction product of an aminohydrocarbyl-substituted polydiorganosiloxane and a carboxy-substituted ethylene glycol is an effective composition for treating fibrous materials to enhance the water absorbency, perspiration absorbency, flexibility, lubricancy, and resilient elasticity of the material without inducing the yellowish coloration of said fiber material.The fiber treatment agent composition can be easily emulsified, and the stability of the resulting emulsion is excellent.

Abstract: An alkoxy endblocked polydiorgansiloxane of the formulaZ--(SiR.sub.2 O).sub.n SiR.sub.2 --Zwhere Z is ##STR1## where Y isR.sub.a (R'O).sub.(3-a) Si--,X is ##STR2## in which a is 0 or 1, d has a value of 1 to 3 inclusive, v is 0 or 1, n.ltoreq.8, p has a value of 3 to 6 inclusive, q has a value of 2 to 6 inclusive, r has a value of 4 to 6 inclusive, w is 0 or 1, Me is methyl, R.sup.1 is an alkyl radical having from 1 to 6 inclusive carbon atoms, each R is a monovalent radical independently selected from the group consisting of hydrocarbon radicals and halogenated hydrocarbon radicals, R' is an alkyl radical of 1 to 3 inclusive carbon atoms, R" is a divalent hydrocarbon radical selected from the group consisting of --(CH.sub.2).sub.b -- and --CH(Me)(CH.sub.2).sub.

Abstract: A curable silicone composition which can cure using hydrosilylation, comprising an aluminum oxide powder and/or silica powder, the powders each consisting of substantially spherical particles with an average particle diameter of 50 .mu.m or below and an elongation of from 1.0 to 1.4 and being such that the respective amounts of alkali metal ions and halogen ions are extracted with 50 ml of water from 5 g of the powder at 121.degree. C. for 20 hours are not more than 10 ppm, wherein the amount of the component (D) is from 25 to 90% by weight based on the composition, and the ratio of the amount of hydrosilyl groups contained in the components (A) and (B) to the amount of alkenyl groups contained in the components (A) and (B) is in the range from 0.5/1 to 1.5/1. When the composition is used as a protective material or encapsulating material for devices such as ICs, generated heat can be dissipated efficiently and the devices are not be broken by abrasion. There are no fears of causing corrosion of the devices.

Abstract: Compositions which have a long shelf life in the absence of water, but crosslink in the presence of water at room temperature to form elastomers which are prepared by mixing (1) an organopolysiloxane containing condensable terminal groups with (2) an organosilicon compound containing at least three hydrolyzable groups per molecule which are bonded directly to silicon, (3) a condensation catalyst and, optionally, at least one additional substance, in which the condensation catalyst (3), is a reaction product obtained from the reaction of a finely divided, inorganic oxide with a reactive titanium compound.

Abstract: The present process of producing a room temperature curable organopolysiloxane composition is characterized in that an organopolysiloxane represented by the following general formula (1) or (2): ##STR1## wherein X represents a hydrolyzable group such as an alkoxy group, R.sup.1 and R.sup.2 each represent a monovalent hydrocarbon group such as an alkyl group and a phenyl group, n is a positive integer, and a is 2 or 3, and a finely divided silica are mixed and thereafter a condensation catalyst is mixed. According to the present process, a curable composition which will not slump can be obtained without using a slump preventive.

Abstract: Silicone compositions which, when exposed to atmospheric moisture at room temperature cure to form a flame retardant elastomer comprising (a) an organopolysiloxane having terminal hydroxyl groups, (b) a cross-linking agent having an average of at least three functional groups linked to a silicon atom per molecule, in which the functional groups are selected from the group consisting of hydrocarbonoxy groups, amine groups, aminoxy groups, oxime groups and mixtures thereof, (c) a condensation catalyst, (d) platinum metal or compound thereof, (e) carbon black, (f) alumina hydrate and optionally (g) a filler.The resultant flame retardant silicon elastomers are useful as insulation for electrical equipment, as encapsulants and as sealants where flame retardancy is necessary.

Abstract: A highly stable emulsion of an organopolysiloxane suitable for use as a fabric-finishing agent is proposed which is prepared by mixing and agitating (a) an organopolysiloxane of a linear molecular structure having polyoxyalkylene groups and amino- or epoxy-substituted groups bonded to the silicon atoms, (b) a specified amount of a, preferably, non-ionic surface active agent having a specific HLB value and (c) water in an amount to form an oil-in-water type emulsion.

Abstract: Heat-vulcanizable silicone elastomer compositions, well adopted for conversion into mechanically strong flame-retardant protective sheathings/coatings for, e.g., electrical wires and cables, comprise (a) at least one polydiorganosiloxane polymer, (b) a reinforcing filler material and (c) a vulcanizing agent, e.g., an organic peroxide, therefor, and including a fireproofing and mechanical strength-enhancing amount of (d) mica and (e) zinc oxide.

Abstract: An extrudable, self-extinguishing, room temperature-curable organopolysiloxane is obtained by combining a polydiorganosiloxane having hydrolyzable groups at the terminals, aluminum hydroxide microparticles having diameters not exceeding 50 micrometers, calcium carbonate microparticles having diameters not exceeding 20 micrometers, platinum or a platinum compound, and silane or siloxane containing at least three hydrolyzable groups.

Abstract: Room temperature vulcanizable silicone sealants containing acetoxy groups are fast curing. These sealants give off only small amounts of volatile materials which are generated during the curing process. These sealants contain crosslinkers and optionally chain extenders having azasilacycloalkane groups cure.

Abstract: A room temperature-curable fluorosilicone rubber composition is disclosed, which is capable of giving a cured silicone rubber having excellent resistance against organic solvents and petroleums withhigh curability despite the high fluorine content which may cause steric hindfrance against the curing reaction due to the bulkiness of the fluorine-containing substituent groups. Different from conventional fluorine-containing diorganopolysiloxanes, in which the fluorine-containing substituent groups are bonded to the silicon atoms at random positions throughout the molecule, several silicon atoms from each of the molecular chain ends of the diorganopolysiloxane as the principal ingredient of the inventive composition are free from fluorine-containing substituent groups so that the crosslinking reaction with the silanolic hydroxy groups bonded to the terminal silicon atoms is not disturbed by the fluorine-containing groups in the vicinity of the terminal silanol groups.

Abstract: A coating composition having improved abrasion resistance is provided, which comprises (A) a composition comprising (1) an organooxy-chainstopped organopolysilsesquioxane, (2) a tetraorganotitanate, (3) (a) a siloxane-functionalized ester having the general formula (R.sup.3 O).sub.3-2n SiO.sub.n R.sup.4 OC(O)R.sup.5 C(O)OR.sup.6, wherein n is equal to 0, 1/2, or 1, each R.sup.3 is independently a saturated or unsaturated monovalent hydrocarbon radical containing from 1 to about 20 carbon atoms, R.sup.4 is a divalent hydrocarbon radical containing from 1 to about 20 carbon atoms, R.sup.5 is a divalent conjugated olefinic radical having from 2 to 4 carbon atoms, and R.sup.6 is R.sup.3 or R.sup.4 SiO.sub.n (OR.sup.3).sub.3-2n ; or (b) a cyanoorganotriorganooxysilane: and (4) an organic carboxylic acid ester; and (B) from 0% to about 85% of a volatile diluent.

Abstract: An aqueous reaction mixture of a multi-functional polydimethyl siloxane emulsified polymer, a methyl triethoxy silane, a mixture of substituted nonyl or octyl phenol derivative surfactants and synthetic ethoxylated amine surfactants, and ethanol. The reaction mixture is coated on a mold core surface and cured with heat to form a mold release surface that can be used in excess of twenty times prior to recoating.