Abstract: This disclosure relates to hydrosilylation (addition) curable silicone rubber compositions, to silicone elastomeric materials with an improved high temperature (e.g., ?175° C.) compression set in accordance with ISO 815-1 method A which are produced by curing the silicone rubber compositions, and to a method for preparing the silicone elastomeric materials. This disclosure also relates to uses for such materials in or for the manufacture of silicone coatings for standard non-silicone insulators, as cable coatings e.g., for safety cables, in cable accessories such as electrical connectors, connector seals, terminations and wire seals, and for other electrical and electronic parts, particularly for the automotive industry and/or in or as hoses and gaskets e.g., for vehicle engines.

Abstract: Disclosed are methods to maintain the durability of silicone-thermoplastic composite articles, which comprise flame-retardant thermoplastics and silicone elastomeric materials, with age by incorporating a stabilizing additive in the silicone elastomeric materials. This disclosure also provides improved silicone-thermoplastic composite articles and uses for such silicone-thermoplastic composite articles. A silicone-thermoplastic composite article comprises: (i) a thermoplastic article comprising one or more flame-retardant additives, wherein the thermoplastic article has an available surface; and (ii) a cured silicone elastomer part in direct contact with the available surface of the thermoplastic article (i). The silicone elastomer part is the cured product of a silicone elastomer composition comprising from 0.25 wt. % to a maximum of 5 wt. % of a stabilizing additive.

Abstract: This disclosure relates to hydrosilylation (addition) curable silicone rubber compositions, to silicone elastomeric materials with an improved high temperature (e.g., 175° C.) compression set in accordance with ISO 815-1 method A which are produced by curing the silicone rubber compositions, and to a method for preparing the silicone elastomeric materials. This disclosure also relates to uses for such materials. A silicone rubber composition comprises: (a) one or more polyorganosiloxanes having at least two unsaturated groups and a viscosity of from 1,000 to 100,000 mPa·s at 25° C.

Abstract: A curable silicone rubber composition of the type referred to in industry as “self-adhesive” or as having “selective adhesion” (hereafter referred to as “curable self-adhesive silicone rubber compositions”). The curable self-adhesive silicone rubber compositions comprise: (A) one or more organopolysiloxanes containing at least 2 alkenyl groups and/or alkynyl groups per molecule and having a viscosity in a range of 1000 mPa·s to 200,000 mPa·s at 25° C.; (B) an organopolysiloxane containing at least 2 or 3 silicon-bonded hydrogen atoms per molecule; (C) at least one hydrosilylation catalyst; (D) at least one reinforcing and optionally one or more non-reinforcing fillers; (E) an adhesion promoter; and (F) an oligomer which has been found to surprisingly provide heat-humidity stabilization.

Abstract: The present disclosure relates to hydrosilylation (addition) curable silicone rubber compositions, which upon cure provide silicone elastomeric materials with improved low compression set whilst avoiding the need to undertake a post-curing step and to a method for preparing said silicone elastomeric materials. The present disclosure also extends to uses for such materials in or for the manufacture of silicone coatings for standard non-silicone insulators, as cable coatings e.g.

Abstract: The present disclosure relates to a method of adhering silicone elastomers made from hydrosilylation curable silicone rubber compositions to an inorganic substrate using a suitable adhesion mediator, the use of the adhesion mediator for same and in relation to composite materials comprising inorganic substrates adhered to silicone elastomers using the aforementioned adhesion mediator composition.

Abstract: The present disclosure relates to hydrosilylation curable silicone rubber compositions having polyorganosiloxane cross-linkers containing at least two or at least three terminal silicon bonded hydrogen groups and one or more hydrosilylation cure inhibitor compounds selected from multiacrylates having at least three acrylate groups per molecule. Cured products resulting from the cure of such compositions and which may include elastomeric products are also disclosed.

Abstract: The present disclosure relates to hydrosilylation curable silicone rubber compositions having polyorganosiloxane cross-linkers containing at least two or at least three terminal silicon bonded hydrogen groups and one or more hydrosilylation cure inhibitor compounds selected from multiacrylates having at least three acrylate groups per molecule. Cured products resulting from the cure of such compositions and which may include elastomeric products are also disclosed. A hydrosilylation curable silicone composition comprises: (A) one or more polyorganosiloxanes containing at least two unsaturated groups per molecule, which unsaturated groups are selected from alkenyl and alkynyl groups and having a viscosity in a range of 1,000 to 200,000 mPa·s at 25° C.; (B) a polyorganosiloxane containing at least two terminal silicon bonded hydrogen groups; (C) at least one hydrosilylation catalyst; and (D) a hydrosilylation cure inhibitor comprising a multiacrylate compound having at least three acrylate groups per molecule.

Abstract: There is provided an adhesion mediator composition for use in the adhesion of silicone elastomers made from hydrosilylation curable silicone rubber compositions to thermoplastic substrates, especially polyolefin substrates. There is also provided a process for adhering silicone elastomers to thermoplastic substrates using the adhesion mediator composition. The adhesion mediator composition comprises: (i) a trialkoxysilane; (ii) a platinum group metal based hydrosilylation reaction catalyst; (iii) an alkoxy titanium compound; (iv) a tetraalkoxysilane; and (v): either (a?) a polyorganosiloxane containing at least two unsaturated groups; or (b?) a mixture of two or more polyorganosiloxanes containing at least two unsaturated groups.

Abstract: There is provided an adhesion mediator composition for use in the adhesion of silicone elastomers made from hydrosilylation curable silicone rubber compositions to thermoplastic substrates, especially polyolefin substrates. There is also provided a process for adhering silicone elastomers to thermoplastic substrates using the adhesion mediator composition. The adhesion mediator composition comprises: (i) a trialkoxysilane; (ii) a platinum group metal based hydrosilylation reaction catalyst; (iii) an alkoxy titanium compound; (iv) a tetraalkoxysilane; and (v): either (a?) a polyorganosiloxane containing at least two unsaturated groups; or (b?) a mixture of two or more polyorganosiloxanes containing at least two unsaturated groups.

Abstract: The present disclosure relates to hydrosilylation curable silicone rubber compositions having polyorganosiloxane cross-linkers containing at least two or at least three terminal silicon bonded hydrogen groups and one or more hydrosilylation cure inhibitor compounds selected from multiacrylates having at least three acrylate groups per molecule. Cured products resulting from the cure of such compositions and which may include elastomeric products are also disclosed. A hydrosilylation curable silicone composition comprises: (A) one or more polyorganosiloxanes containing at least two unsaturated groups per molecule, which unsaturated groups are selected from alkenyl and alkynyl groups and having a viscosity in a range of 1,000 to 200,000 mPa·s at 25° C.; (B) a polyorganosiloxane containing at least two terminal silicon bonded hydrogen groups; (C) at least one hydrosilylation catalyst; and (D) a hydrosilylation cure inhibitor comprising a multiacrylate compound having at least three acrylate groups per molecule.

Abstract: A curable silicone rubber composition of the type referred to in industry as “self-adhesive” or as having “selective adhesion” (hereafter referred to as “curable self-adhesive silicone rubber compositions”). The curable self-adhesive silicone rubber compositions comprise: (A) one or more organopolysiloxanes containing at least 2 alkenyl groups and/or alkynyl groups per molecule and having a viscosity in a range of 1000 mPa·s to 200,000 mPa·s at 25° C.; (B) an organopolysiloxane containing at least 2 or 3 silicon-bonded hydrogen atoms per molecule; (C) at least one hydrosilylation catalyst; (D) at least one reinforcing and optionally one or more non-reinforcing fillers; (E) an adhesion promoter; and (F) an oligomer which has been found to surprisingly provide heat-humidity stabilization.

Abstract: A method of formfree printing a three-dimensional object in layers with at least one printing material includes outputting printing material in at least one printing material string in string-shape via at least one printing head; receiving, via a printing platen, at least one printing material string output by the at least one printing head; providing a rod-shaped heating device movably arranged over the printing platen; controlling the rod-shaped heating device, via a heat controller, to emit a heat irradiation directed to the printing platen to heat the at least one printing material string to a reaction temperature to trigger a chemical reaction of the at least one printing material of the at least one printing material string; providing at least one motor coupled to the rod-shaped heating device to move it over the printing platen; and controlling the at least one motor, via a motor controller, to move the rod-shaped heating device over the printing platen to harden the at least one printing material stri

Abstract: A method of formfree printing a three-dimensional object in layers with at least one printing material includes outputting printing material in at least one printing material string in string-shape via at least one printing head; receiving, via a printing platen, at least one printing material string output by the at least one printing head; providing a rod-shaped heating device movably arranged over the printing platen; controlling the rod-shaped heating device, via a heat controller, to emit a heat irradiation directed to the printing platen to heat the at least one printing material string to a reaction temperature to trigger a chemical reaction of the at least one printing material of the at least one printing material string; providing at least one motor coupled to the rod-shaped heating device to move it over the printing platen; and controlling the at least one motor, via a motor controller, to move the rod-shaped heating device over the printing platen to harden the at least one printing material stri

Abstract: According to various embodiments, a device for formfree printing a three-dimensional object in layers using at least one printing material includes: at least one printing head to output printing material in at least one printing material string; a printing platen to receive the at least one printing material string output by the at least one printing head; a rod-shaped heating device movably arranged over the printing platen; a heat controller configured to control the rod-shaped heating device to emit a heat irradiation directed to the printing platen to heat the at least one printing material string; at least one motor coupled to the rod-shaped heating device to move it over the printing platen; a motor controller configured to control the at least one motor to move the rod-shaped heating device over the printing platen to harden the at least one printing material string printed on the printing platen.

Abstract: A process for modifying a silicone elastomeric-based surface of a textile article where the coefficient of friction (COF) of the silicone elastomeric-based surface is generally reduced by at least 5% is disclosed. The process comprises subjecting the silicone elastomeric-based surface of the textile article to vacuum ultraviolet (UV) radiation.

Abstract: According to various embodiments, a device for formfree printing a three-dimensional object in layers using at least one printing material includes: at least one printing head to output printing material in at least one printing material string; a printing platen to receive the at least one printing material string output by the at least one printing head; a rod-shaped heating device movably arranged over the printing platen; a heat controller configured to control the rod-shaped heating device to emit a heat irradiation directed to the printing platen to heat the at least one printing material string; at least one motor coupled to the rod-shaped heating device to move it over the printing platen; a motor controller configured to control the at least one motor to move the rod-shaped heating device over the printing platen to harden the at least one printing material string printed on the printing platen.

Abstract: A process for modifying a silicone elastomeric-based surface of an article where the coefficient of friction (COF) of the silicone elastomeric-based surface is generally reduced by at least 5% is disclosed. The process comprises subjecting the silicone elastomeric-based surface of the article to vacuum ultraviolet (UV) radiation.

Abstract: A process for modifying a silicone elastomeric-based surface of a textile article where the coefficient of friction (COF) of the silicone elastomeric-based surface is generally reduced by at least 5% is disclosed. The process comprises subjecting the silicone elastomeric-based surface of the textile article to vacuum ultraviolet (UV) radiation.

Abstract: The invention provides a composition comprising a polyolefin and a polyorganosiloxane in which at least 50 mole % of the siloxane units are D units as herein defined and which contains at least one unsaturated group, characterized in that the unsaturated group is group of the formula —X—CH?CH—R? (I) or —X—C?C—R? (II), in which X represents a divalent organic linkage having an electron withdrawing effect with respect to the —CH?CH— or —C?C— bond and/or containing an aromatic ring or a further olefinic double bond or acetylenic unsaturation, the aromatic ring or the further olefinic double bond or acetylenic unsaturation being conjugated with the olefinic unsaturation of —X—CH?CH—R? or with the acetylenic unsaturation of —X—C?C—R? and R? represents hydrogen or a group having an electron withdrawing effect or any other activation effect with respect to the —CH?CH— or —C?C— bond.