Abstract: Silicone containing imidazoline compositions are provided which are represented by the formula: ##STR1##

Abstract: Phospholipid compositions of the formula: ##STR1## wherein: A, which may be the same or different or mixtures thereof, are selected from OH, OM, and R--CH.sub.2 -- CHOH--CH.sub.2 --O--;M is a cation; andR is a quaternized organosilicone amidoamine moiety of the formula; ##STR2## wherein: R.sub.1 is a silicone backbone chain to which amine functional group(s) can be attached.

Abstract: Described herein are amide and/or imide containing polymers based on novel monomers that contain isoalkylidene bridges. These polymers have excellent toughness combined with high temperature stability, low water absorption, and good melt-fabricability.

Abstract: Described herein are amide and/or imide containing polymers based on novel monomers that contain isoalkylidene bridges. These polymers have excellent toughness combined with high temperature stability, low water absorption, and good melt-fabricability.

Abstract: Described herein are amide and/or imide containing polymers based on novel monomers that contain isoalkylidene bridges. These polymers have excellent toughness combined with high temperature stability, low water absorption, and good melt-fabricability.

Abstract: A novel polymeric binder for use in an antifouling paint includes an acrylic or methacrylic ester monomer having selected substituted aryl or arylalkyl substituent groups in the ester moiety so that the ester is hydrolyzable at a suitable rate in seawater, and a copolymerizable ethylenically unsaturated monomer unit.

Abstract: Aromatic or aliphatic dianhydrides and/or acid anhydrides are reacted with certain aromatic diamines alone or in combination with other diamines to produce polyimides, polyamide acids, poly(amide-imides), poly(amide-amide acids), poly(esterimides) or poly(esteramide acids). These polymers are thermoplastic in nature and have improved processing characteristics and thermal stability. The polymers may be prepared by either melt or solution polymerization techniques.

Abstract: Novel and known functionally substituted phenoxyalkyl-, thiophenoxyalkyl- and pyridyloxyalkylsilanes are prepared by reacting substantially equimolar amounts of an alkali- or alkaline earth metal phenoxide, thiophenoxide or pyridyloxide with a haloalkylsilane under anhydrous conditions using a dipolar, aprotic solvent in combination with a liquid hydrocarbon.

Abstract: A novel polymeric binder for use in an antifouling paint includes an acrylic or methacrylic ester monomer having selected substituent groups in the ester moiety so that the ester is hydrolyzable at a suitable rate in seawater, and a copolymerizable ethylenically unsaturated monomer unit.

Abstract: The properties of polymeric compositions can be improved by the presence of a polysiloxane unit of formula ##STR1## where Q is a substituted or unsubstituted aromatic group, ##STR2## D is unsubstituted or substituted hydrocarbylene R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each, independently, is unsubstituted or substituted hydrocarbyl.x, y and z each independently has a value from 0 to 100.Polyimides containing these units display improved solubility and adhesion; they are useful, among other things, as protective coatings.

Abstract: The properties of polymeric compositions can be improved by the presence of a polysiloxane unit of formula ##STR1## where Q is a substituted or unsubstituted aromatic group,Z is ##STR2## D is unsubstituted or substituted hydrocarbylene R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each, independently, is unsubstituted or substituted hydrocarbyl. x, y and z each independently has a value from 0 to 100.Polyimides containing these units display improved solubility and adhesion; they are useful, among other things, as protective coatings.

Abstract: This invention relates to a novel class of organosilanes. The characteristic feature of these silanes is the presence of a hydantoin residue that is bonded to silicon through an alkylene group.

Abstract: Heat-resistant, polyorganosiloxane elastomers are prepared by reacting a linear, difunctional polyorganosiloxane with a silicon-containing crosslinking agent and a stannous salt of a monoethylenically unsaturated monohydroxy monocarboxylic acid as the curing catalyst. A filler can optionally be included in the formulation. The present catalysts are unique in that they impart a relatively long working life to the uncured composition yet do not catalyze the depolymerization reaction at elevated temperatures as do conventional organotin catalysts such as dibutyltin dilaurate.

Abstract: A silicone containing bis-thioether aromatic amine has a chemical structure wherein an aromatic nucleus at each end of the chemical radical is chemically bonded to the remainder of the chemical radical by either sulfur, sulfoxide or sulfone.

Abstract: Organofunctional-silicon hydrides having, in addition, a halo substituent are provided. These compounds, of generic formula:QSiYY'H, (1)where Q is an organofunctional alkyl radical, Y is a halide radical, and Y' is Y or a monovalent hydrocarbon radical free of aliphatic unsaturation, are useful as intermediates in the production of various bis-(organofunctional-alkyl)silanes. Additionally, they are useful as waterproofing agents for various materials.

Abstract: A copolymer which is the reaction product of a tetracarboxylic acid dianhydride, and organic diamine and a di(aminoalkyl) poly siloxane where the di(aminoalkyl) poly siloxane constitutes 18-45 mole percent of the total amine requirement of the polymer and is applicable as a conformal protective coating for electronic devices.

Abstract: This disclosure relates to novel silicone compounds containing alkenyl thio functional groups and their method of preparation. These compounds are useful as adhesion promoters for self-adhering silicone rubbers capable of bonding to inorganic substrates especially metals. The silicone rubber-metal composites have particular applications in semiconductor devices and in ignition systems for automobiles.

Abstract: A copolymer which is the reaction product of a tetracarboxylic acid dianhydride, and organic diamine and a di(aminoalkyl) poly siloxane where the di(aminoalkyl) poly siloxane constitutes 18 - 45 mole percent of the total amine requirement of the polymer and is applicable as a conformal protective coating for electronic devices.

Abstract: A process is provided for making polyimides having chemically combined polydiorganosiloxane blocks. An excess organic dianhydride is contacted with an organic diamine in a refluxing halogenated aromatic hydrocarbon solvent in the presence of an acid catalyst to produce an intermediate polyimide product. The temperature of the mixture is thereafter lowered, and amino-terminated polydiorganosiloxane is added to the mixture to effect the incorporation of polydiorganosiloxane blocks into the polyimide. There is produced clear polyimide-polydiorganosiloxane block polymer useful as an insulating layer on semi-conductor devices.

Abstract: A silicone containing bis-thioether aromatic amine has a chemical structure wherein an aromatic nucleus at each end of the chemical radical is chemically bonded to the remainder of the chemical radical by either sulfur, sulfoxide or sulfone.