Abstract: Anti-fouling coatings comprise a room temperature vulcanizable polyorganosiloxane composition and a polyorganosiloxane free from silanol groups and comprising at least one hydroxy- or alkoxy-terminated polyoxyalkylenealkyl radical. The latter is capable of blooming to the surface of the cured room temperature vulcanizable composition, thus inhibiting the deposition of marine life on the coated article.

Abstract: Sprayable, environmentally harmless addition curable silicone foul release coating compositions comprise a polyorganosiloxane having at least two organic radicals bound to silicon which have therein a carbon-carbon double bond, a polyorganosiloxane having at least two Si--H moieties per molecule, silica having a surface area in the range of about 100-600 m.sup.2 /g, a platinum group hydrosilylation catalyst and a polymerization inhibitor. One of the polyorganosiloxane components comprises internally functional and terminally functional compounds.

Abstract: Room temperature vulcanizable coating compositions, useful as anti-fouling coatings for marine structures such as ships, are prepared by a method comprising the steps of first blending a particulate reinforcing filler such as silica with a non-reactive polyorganosiloxane oil under high shear conditions, and subsequently combining the resulting masterbatch with at least one reactive polyorganosiloxane having a relatively low viscosity, a condensation catalyst and a crosslinking agent. The resulting compositions are sprayable in the absence of solvents, although solvents may be added if desired.

Abstract: Addition-curable platinum group metal catalyzed silicone compositions are provided which utilize an adhesion promoter in the form of a Michael reaction product of a bis(aminoalkyl)tetraalkyldisiloxane, such as bis(aminopropyl)tetramethyldisiloxane, with an acryloxyorganotrialkoxysilane, for example, acryloxypropyltrimethoxysilane. The addition-curable silicone compositions can bond to plastic and metal substrates at temperatures of less than 100.degree. C. and in less than 1 hour, forming composites which fail cohesively upon separation.

Abstract: Silicon- and nitrogen-containing compositions prepared by the reaction of an aminoalkylsilane such as 3-aminopropyl- or 3-methylaminopropyltrimethoxysilane with a glycidoxyalkylsilane such as 3-glycidoxypropyltrimethoxysilane are useful as adhesion promoters in addition curable polyorganosiloxane compositions. The latter are illustrated by mixtures of vinyl-substituted polyorganosiloxanes and hydride polyorganosiloxanes, also containing at least one platinum group metal compound as a hydrosilylation catalyst.

Abstract: Bis(bis-silylalkyl) dicarboxylates, especially maleates and fumarates, are prepared by a three-step process including esterification of malaic or fumaric acid or a functional derivative thereof with a branched dienol such as 1,6-heptadien-4-ol to form an alkadienol ester, reaction of the olefinic groups in said ester with a chlorosilane and alcoholysis of the chlorine atoms attached to silicon. The products are useful as adhesion promoters in addition curable polyorganosiloxane compositions.

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: Bis(bis-silylalkyl) dicarboxylates, especially maleates and fumarates, are prepared by a three-step process including esterification of malaic or fumaric acid or a functional derivative thereof with a branched dienol such as 1,6-heptadien-4-ol to form an alkadienol ester, reaction of the olefinic groups in said ester with a chlorosilane and alcoholysis of the chlorine atoms attached to silicon. The products are useful as adhesion promoters in addition curable polyorganosiloxane compositions.

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: Room temperature vulcanizable platinum group metal catalyzed silicone compositions are provided which utilize an N-heterocyclic adhesion promoter, such as 2,6 bis(trimethoxysilyltrimethyleneoxy)pyridine. Cohesive bonding is effected on various substrates.

Abstract: Silicone foams are prepared by microwave curing of a mixture of at least one polyorganosiloxane having vinyl groups attached to silicon; at least one hydride polysiloxane; a blowing agent comprising water and, preferably, at least one monohydroxyaliphatic compound, a cyclodextrin inclusion compound of a platinum group metal coordination complex (preferably with a cyclic diene) and a filler. The use of the inclusion compound as a catalyst increases the shelf life of the composition, whereupon curing and foaming occur together upon exposure to microwave radiation.

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: Room temperature vulcanizable platinum group metal catalyzed silicone compositions are provided which utilize an N-heterocyclic adhesion promoter, such as 2,6 bis(trimethoxysilyltrimethyleneoxy)pyridine. Cohesive bonding is effected on various substrates.

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: Room temperature vulcanizable platinum group metal catalyzed silicone compositions are provided which utilize an N-heterocyclic adhesion promoter, such as 2,6 bis(trimethoxysilyltrimethyleneoxy)pyridine. Cohesive bonding is effected on various substrates.

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: 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 method is provided for making a rigid spacer, containing a silicone bound desiccant which is useful for a multi-pane sealed window. An infrared radiation curable silicone is used as a binder for a desiccant such as a zeolite which is injected in a continuous manner into a U-shaped or V-shaped semi-rigid spacer such as a steel channel.

Abstract: Cyclic aminoalkylsilane compositions are prepared by the reaction of approximately equimolar amounts of an aminoalkyltrialkoxysilane such as 3-aminopropyltrimethoxysilane and a glycidyl ether such as methyl glycidyl ether. They are useful as adhesion promoters in room temperature vulcanizable compositions comprising polyalkoxysilyl-terminated polydiorganosiloxanes.

Abstract: Cyclic aminoalkylsilane compositions are prepared by the reaction of approximately equimolar amounts of an aminoalkyltrialkoxysilane such as 3-aminopropyltrimethoxy-silane and a glycidyl ether such as methyl glycidyl ether. They are useful as adhesion promotors in room temperature vulcanizable compositions comprising polyalkoxysilyl-terrninated polydiorganosiloxanes.