C08K5/5425

Room temperature moisture-curable silicone gel composition, and cured product and article therefrom

Provided is a room temperature moisture-curable silicone gel composition containing: (A) diorganopolysiloxane, both terminals of which are blocked by silanol groups; (B) hydrolysable organosilicon compound represented by Formula (2) and/or a partial hydrolysate thereof ##STR00001##
(where R.sup.2 is a monovalent hydrocarbon group, R.sup.3 is an alkyl group or a cycloalkyl group, and a is 2 or 3.); (C) a curing catalyst; and (D) a heat-resistant aid containing a homogeneous mixture of (D-a), (D-b), and (D-c) (where (D-a) is organopolysiloxane having a viscosity of 10-10,000 mPa.Math.s at 25° C., (D-b) is carboxylate of cerium, and (D-c) is a titanium compound and/or a partial hydrolytic condensate thereof). This room temperature moisture-curable silicone gel composition can be a silicone gel cured product which has a small variation rate of low-stress properties evaluated by the index such as penetration even under heat-resistant conditions exceeding 230° C. and which has excellent heat-resistance.

Room temperature moisture-curable silicone gel composition, and cured product and article therefrom

Provided is a room temperature moisture-curable silicone gel composition containing: (A) diorganopolysiloxane, both terminals of which are blocked by silanol groups; (B) hydrolysable organosilicon compound represented by Formula (2) and/or a partial hydrolysate thereof ##STR00001##
(where R.sup.2 is a monovalent hydrocarbon group, R.sup.3 is an alkyl group or a cycloalkyl group, and a is 2 or 3.); (C) a curing catalyst; and (D) a heat-resistant aid containing a homogeneous mixture of (D-a), (D-b), and (D-c) (where (D-a) is organopolysiloxane having a viscosity of 10-10,000 mPa.Math.s at 25° C., (D-b) is carboxylate of cerium, and (D-c) is a titanium compound and/or a partial hydrolytic condensate thereof). This room temperature moisture-curable silicone gel composition can be a silicone gel cured product which has a small variation rate of low-stress properties evaluated by the index such as penetration even under heat-resistant conditions exceeding 230° C. and which has excellent heat-resistance.

SIDE CHAIN FUNCTIONALIZED ORGANOSILOXANE POLYMERS, COATING COMPOSITIONS AND ICE-PHOBIC COATINGS THEREOF

The disclosure relates to sidechain functionalized organosiloxane compounds comprising polyalkyleneoxide (POA) and/or polyalkyleneoxide coupled zwitterionic moieties with various other modular side chains including reactive and or non-reactive groups. The present disclosure further also pertains to ice-phobic polymer formulations capable of curing on a substrate to form a surface that is ice-phobic, resistant to ice formation, and/or resistant to ice adhesion. The disclosed ice-phobic polymer formulations comprise one or more disclosed sidechain functionalized organosiloxane compound, one or more binder resin, and/or one or more lubricating liquid. The present disclosure further relates to articles comprising the disclosed ice-phobic polymer compositions, thereby providing articles having ice-phobic properties. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

SIDE CHAIN FUNCTIONALIZED ORGANOSILOXANE POLYMERS, COATING COMPOSITIONS AND ICE-PHOBIC COATINGS THEREOF

The disclosure relates to sidechain functionalized organosiloxane compounds comprising polyalkyleneoxide (POA) and/or polyalkyleneoxide coupled zwitterionic moieties with various other modular side chains including reactive and or non-reactive groups. The present disclosure further also pertains to ice-phobic polymer formulations capable of curing on a substrate to form a surface that is ice-phobic, resistant to ice formation, and/or resistant to ice adhesion. The disclosed ice-phobic polymer formulations comprise one or more disclosed sidechain functionalized organosiloxane compound, one or more binder resin, and/or one or more lubricating liquid. The present disclosure further relates to articles comprising the disclosed ice-phobic polymer compositions, thereby providing articles having ice-phobic properties. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

PHOTOCURABLE MALEIMIDE RESIN COMPOSITION

Provided is a photocurable maleimide resin composition that is superior in curability, and is capable of being turned into a cured product having superior dielectric properties, a high glass-transition temperature and a small coefficient of thermal expansion. The photocurable maleimide resin composition contains: (A) a maleimide compound having, per each molecule, at least one saturated or unsaturated divalent aliphatic hydrocarbon group having 6 to 200 carbon atoms; and (B) a photocuring initiator.

PHOTOCURABLE MALEIMIDE RESIN COMPOSITION

Provided is a photocurable maleimide resin composition that is superior in curability, and is capable of being turned into a cured product having superior dielectric properties, a high glass-transition temperature and a small coefficient of thermal expansion. The photocurable maleimide resin composition contains: (A) a maleimide compound having, per each molecule, at least one saturated or unsaturated divalent aliphatic hydrocarbon group having 6 to 200 carbon atoms; and (B) a photocuring initiator.

Barrier adhesive compositions and articles

Barrier adhesive compositions include at least one polyisobutylene-containing polymer and a curable silsesquioxane additive. The curable silsesquioxane additive may contain free radically polymerizable groups. Barrier film articles include the barrier adhesive compositions and a film. The barrier film articles can be used to encapsulate organic electronic devices.

Barrier adhesive compositions and articles

Barrier adhesive compositions include at least one polyisobutylene-containing polymer and a curable silsesquioxane additive. The curable silsesquioxane additive may contain free radically polymerizable groups. Barrier film articles include the barrier adhesive compositions and a film. The barrier film articles can be used to encapsulate organic electronic devices.

Silanes and Curable Compositions Containing Said Silanes as Crosslinkers
20180002353 · 2018-01-04 ·

The invention relates to a silane of the formula (1),


Si(R.sup.1).sub.m(R.sup.2).sub.n(R.sup.3).sub.4-(m+n)  (1)

as defined herein, where the silane has at least one group of the general formula (3):

##STR00001##

as defined herein, to a method for preparing the silane, and to curable compositions, containing the silane and at least one polyorganosiloxane.

Silanes and Curable Compositions Containing Said Silanes as Crosslinkers
20180002353 · 2018-01-04 ·

The invention relates to a silane of the formula (1),


Si(R.sup.1).sub.m(R.sup.2).sub.n(R.sup.3).sub.4-(m+n)  (1)

as defined herein, where the silane has at least one group of the general formula (3):

##STR00001##

as defined herein, to a method for preparing the silane, and to curable compositions, containing the silane and at least one polyorganosiloxane.