The invention relates to an alkoxysilane polysulfide, of formula (I):
(R.sup.3O).sub.3-n(R.sup.1).sub.nSi—CH.sub.2—(R.sup.2)CH—Z—S.sub.x—Z—HC(R.sup.2)—CH.sub.2—Si(R.sup.1).sub.n(OR.sup.3).sub.3-n  (I),
in which: R.sup.1, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 18 carbon atoms; R.sup.2, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 4 carbon atoms; R.sup.3, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 12 carbon atoms, preferably from 1 to 6 carbon atoms; Z, which are identical or different, each represent a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms; x is an integral or fractional number greater than or equal to 2; and n is an integer equal to 0, 1 or 2.

A room temperature curable organopolysiloxane composition comprises: (A) an organopolysiloxane having alkoxysilyl-containing groups at both molecular terminals; (B) an organopolysiloxane resin; (C) an alkoxysilane; and (D) a condensation-reaction catalyst. The room temperature curable organopolysiloxane composition exhibits good to excellent storage stability. In addition, the room temperature curable organopolysiloxane composition can form a cured product exhibiting good to excellent mechanical properties.

The invention describes compositions that include amine-containing silsesquioxane or an amine-containing alkyltrialkoxysilane and a thermoplastic elastomer as well as methods of preparation of the compositions that are useful as self-bonding adhesives for various substrates.

An elastomeric composition is based on at least a diene elastomer, an inorganic filler as reinforcing filler and a monohydroxysilane polysulfide as coupling agent of formula (I): (HO)(R.sup.1).sub.2SiCH.sub.2(R.sup.2)CHZS.sub.xZHC(R.sub.2)CH.sub.2Si(R.sup.1).sub.2(OH) (I), in which: each R.sup.1 represents a monovalent hydrocarbon group having from 1 to 18 carbon atoms and can be the same or different from one another; each R.sup.2 represents a monovalent hydrocarbon group having from 1 to 4 carbon atoms and can be the same or different from one another; each Z represents a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms can be the same or different from one another; and x is an integral or fractional number greater than or equal to 2.

The invention relates to a plastics-covered mercaptosilane-wax mixture, where the plastic of the plastics covering is selected from the group of polypropylene, polyethylene, ethylene-vinyl acetate copolymer and mixtures of the abovementioned plastics with melting point from 70 to 170 C., and the mercaptosilane-wax mixture comprises at least one mercaptosilane of the general formula I ##STR00001##
and at least one wax with congealing point from 30 to 160 C. The plastics-covered mercaptosilane-wax mixture can be used in rubber mixtures.

The present invention provides a printing ink or coating composition comprising a self-crosslinking acrylic polymer, a coalescent and a silicone emulsion wherein the self-crosslinking acrylic polymer has a glass transition temperature of greater than 25 C. Furthermore the present invention also provides a process for preparing a coated substrate, in particular a polyboard substrate and an article made from the coated substrate, such as a milk or juice carton.

The invention relates to an alkoxysilane polysulfide, of formula (I):

(R.sup.3O).sub.3-n(R.sup.1).sub.nSiCH.sub.2(R.sup.2)CHZS.sub.xZHC(R.sup.2)CH.sub.2Si(R.sup.1).sub.n(OR.sup.3).sub.3-n(I),

in which: R.sup.1, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 18 carbon atoms; R.sup.2, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 4 carbon atoms; R.sup.3, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 12 carbon atoms, preferably from 1 to 6 carbon atoms; Z, which are identical or different, each represent a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms; x is an integral or fractional number greater than or equal to 2; and n is an integer equal to 0, 1 or 2.

An elastomeric composition is based on at least a diene elastomer, an inorganic filler as reinforcing filler and a monohydroxysilane polysulfide as coupling agent of formula (I): (HO)(R.sup.1).sub.2SiCH.sub.2(R.sup.2)CHZS.sub.xZHC(R.sub.2)CH.sub.2Si(R.sup.1).sub.2(OH) (I), in which: each R.sup.1 represents a monovalent hydrocarbon group having from 1 to 18 carbon atoms and can be the same or different from one another; each R.sup.2 represents a monovalent hydrocarbon group having from 1 to 4 carbon atoms and can be the same or different from one another; each Z represents a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms can be the same or different from one another; and x is an integral or fractional number greater than or equal to 2.

The present disclosure is directed to compositions and methods for coating, particularly protecting and optionally cleaning, metallic surfaces, and articles containing such surfaces.

Compositions that include polymer and silane can be used in various finish compositions, especially finish compositions intended for use on hard, high gloss surfaces. The silane of the composition can be in the form of a silane group attached to a polymer backbone or as a distinct component. The polymer can be provided as an aqueous emulsion or suspension in a liquid. The polymer finish composition can be used as a floor care coating or as an architectural coating such as a paint or wood finish.