Segmented silicone polymers incorporating segments formed from medium-chain fatty acids are generally disclosed herein. Methods of using such compounds, for example, as surfactants, are also disclosed herein, as well as methods of making such compounds, for example, from medium-chain fatty acids derived from natural oils.

The present invention relates to a soil conditioner based on organomodified siloxanes and uses thereof as well as methods for conditioning soil, particularly farmland, which reduce the sodicity and dispersion to improve the mobility of water through the soil.

Provided are a composition with which a cured film having excellent light shielding properties and small change in reflectivity before and after a heat resistance test can be produced; a light shielding film; a solid-state imaging element; an image display device; and a method for manufacturing a cured film.

The composition includes carbon black, silica, barium sulfate, a polymerizable compound, and a polymerization initiator.

Provided are a composition with which a cured film having excellent light shielding properties and small change in reflectivity before and after a heat resistance test can be produced; a light shielding film; a solid-state imaging element; an image display device; and a method for manufacturing a cured film.

The composition includes carbon black, silica, barium sulfate, a polymerizable compound, and a polymerization initiator.

Silane-terminated polymers of the formula (I)
Y—[Z—C(═O)—NR.sup.3—(CR.sup.1.sub.2).sub.b—SiR.sub.a(OR.sup.2).sub.3-a].sub.x  (I),
are produced by reacting at least one hydroxy-functional polymer (a), comprising at least one polyether, polyester and/or polyacrylate unit, with at least one compound having at least one isocyanate group, in the presence of at least one bismuth-containing catalyst (K), with the proviso that the reaction mixture comprises 50 to 250 ppm water at the start of the reaction.

Provided are polysiloxane structure-containing rubber particles and composite particles having a high dispersibility and degradability; and production methods thereof. The rubber particles are comprised of a copolymer having a polyester structure and an organopolysiloxane structure, wherein the copolymer is a hydrosilylation crosslinked product of (A) a polyester having at least two aliphatic unsaturated groups per molecule; and (B) an organohydrogenpolysiloxane having at least two silicon atom-bonded hydrogen atoms per molecule. The composite particles are those with the surfaces of these rubber particles being coated with polyorganosilsesquioxane or silica.

A resin composition includes a core-shell rubber, a vinyl-containing benzoxazine resin and a maleimide resin, wherein the core-shell rubber has a core-shell ratio of 6.0:4.0 to 9.5:0.5. The resin composition may be used to make various articles, such as a prepreg, a resin film, a laminate or a printed circuit board, and achieves improvements in at least one, more or all of the properties including dissipation factor, copper foil peeling strength (3 μm copper foil), ten-layer board T300 thermal resistance, ten-layer board glass transition temperature, ten-layer board delamination temperature, inner resin flow, and resin filling property of open area.

A silicone-organic copolymer has the formula X.sub.g[Z.sub.jY.sub.o].sub.c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyacrylate moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, 0<j<2, and 0<o<2, with the proviso that j+o=2 in each moiety indicated by subscript c. Methods of preparing the silicone-organic copolymer are also disclosed. Further, a sealant is disclosed, the sealant comprising the silicone-organic copolymer and a condensation-reaction catalyst.

A silicone-organic copolymer has the formula X.sub.g[Z.sub.jY.sub.o].sub.c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyacrylate moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, 0<j<2, and 0<o<2, with the proviso that j+o=2 in each moiety indicated by subscript c. Methods of preparing the silicone-organic copolymer are also disclosed. Further, a sealant is disclosed, the sealant comprising the silicone-organic copolymer and a condensation-reaction catalyst.

A resin composition includes a core-shell rubber, a vinyl-containing benzoxazine resin and a maleimide resin, wherein the core-shell rubber has a core-shell ratio of 6.0:4.0 to 9.5:0.5. The resin composition may be used to make various articles, such as a prepreg, a resin film, a laminate or a printed circuit board, and achieves improvements in at least one, more or all of the properties including dissipation factor, copper foil peeling strength (3 μm copper foil), ten-layer board T300 thermal resistance, ten-layer board glass transition temperature, ten-layer board delamination temperature, inner resin flow, and resin filling property of open area.