Dow Corning Corporation

Andrew H Ward

Stefan F Rentsch

Alfred J DiSapio

Terence J Swihart

Sunny J Lo

John C Saam

Judith M Vincent

Kenneth A Kasprzak

James R Falender

Thomas C Kendrick

Sarah E Lindsey

A method of making a drawing media which can be applied to a substrate in which the drawing media is prepared by mixing together a pigment a binder, and an organosilicon compound. The organosilicon compound is a volatile low viscosity methylsilicone fluid which is either a cyclic silicone polymer or a short chain linear silicone polymer. The silicone containing drawing media is applied to the substrate, and the drawing media is allowed to dry on the substrate.

Silicone containing artists' media

The invention disclosed herein deals with acyloxy endblocked polyethers having improved hydrolytic stability. This invention also deals with polysiloxane-polyoxyalkylene copolymers having improved hydrolytic stability and, with compositions which include the polysiloxane-polyoxyalkylene copolymers in the presence of water, and to methods for use of the polysiloxane-polyoxyalkylene copolymers to prepare polyurethane foams.

Acyloxy endblocked polyethers having improved hydrolytic stability

Compositions and a method of delivering a humectant to a surface such as skin by forming a reaction product of the humectant with an organosilicon compound. The reaction product is applied to the skin surface and contacted with moisture which causes the reaction product to undergo hydrolysis on the skin surface. This releases free humectant onto the skin surface and the silanol functional organosilicon compound formed as a result of the hydrolysis can be utilized on the skin surface as a durable water repellent and softening ingredient for the skin.

Glyceroxyfunctional silanes and siloxanes

Skin conditioning compositions containing glyceroxyfunctional silanes

An oxygen bleach composition which includes a peroxy bleach component selected from the group consisting of perborates, persulfates, persilicates, perphosphates, and percarbonates, and an organic oxygen bleach activator component capable of reacting with the peroxy bleach component to produce an active peroxy acid, the activator being selected from the group consisting of acetamide functional organosilicon compounds and succinimide functional organosilicon compounds.

Organosilicon oxygen bleach activators

The invention relates to compositions for transparent or translucent antiperspirants comprising a polyol, the reaction product of an antiperspirant salt and a silane and an optional gelling agent, but no or substantially no water. When gelled, the composition is suitable for use as a stick antiperspirant. The invention also relates to the process by which compositions of the invention are prepared.

Transparent antiperspirant compositions and method of preparation

An oxygen bleach composition which includes a peroxy bleach component selected from the group consisting of perborates, persulfates, persilicates, perphosphates, and percarbonates, and an organic oxygen bleach activator component capable of reacting with the peroxy bleach component to produce an active peroxy acid, the activator being selected from the group consisting of acetamide functional organosilicon compounds and succinimide functional organosilicon compounds. The activator is a compound selected from the group consisting of compounds having the formulas: ##STR1## wherein R=an alkyl group having 1-4 carbon atoms,

Organosilicon oxygen bleach activator compositions

Antistatic fabric softening articles comprising cationic fabric softening agents in combination with a polydiorganosiloxane component on a flexible substrate are described. The polydiorganosiloxane component may be a polydimethylsiloxane, a polyphenylmethylsiloxane, or a dimethylsiloxane-glycol copolymer. The fabric conditioning composition is releasably affixed or incorporated into a substrate from which it is transferred to fabrics in an automatic laundry dryer.

Articles for conditioning fabrics in a laundry dryer

Block copolymers are prepared by coupling a poly-.alpha.-methylstyrene block with a polydiorganosiloxane block through a small amount of coupling units of the formula ##STR1## where R denotes an alkyl radical of 1 to 4 carbon atoms. The resulting block copolymers have an improved glass transition temperature, reaching a value of approximately the glass transition temperature of an analogous poly-.alpha.-methylstyrene when R is tertiary-butyl.

Method for preparing improved polyalphamethyls

The gas permeability of a polymeric material is altered by irreversibly mechanically stressing in at least one direction a polymeric material which is a mixture of two phases where one phase is evenly distributed throughout a second phase and one phase is present in an amount of at least 10 weight percent. The phases are polymeric materials which each have an elastic shear modulus of less than 10.sup.9 dynes per square centimeter at processing temperature, are chemically dissimilar materials and have oxygen gas permeabilities which differ by a factor of at least 10. At least one phase is a thermoplastic which is solid at ambient temperature and the mixture retains its physical state on standing at ambient temperature over extended periods of time. An example would be cold rolling a sheet of a polyblend of polyethylene and polydimethylsiloxane. Mechanically stressing film in at least one direction by cold rolling, drawing or blowing polymeric materials as defined above alters the gas permeability from unstressed film. An extruded tube of polymeric material mechanically stressed in at least one direction has altered gas permeability compared to an unstressed tube.

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Sanford, MI, United States of America

Andrew H Ward