Abstract: Disclosed herein is a process for producing an aromatic group-containing organosilane, The process includes reacting a reaction mixture comprising an aromatic organic compound of the formula R1X and a halosilane or alkoxysilane represented by the formula R2aSiZ4-a in the presence of magnesium metal in order to produce the organosilane with the proviso that said reaction mixture is essentially free of any organic solvent, wherein R1 is an aryl group, each R2 is independently a phenyl group, a vinyl group or a C1-C4 alkyl group, X is chlorine or bromine, Z is chlorine, bromine or alkoxy, and a has a value of 0, 1, 2, or 3.

Abstract: This invention relates generally to methods of rotationally molding multi-layer parts. More particularly, in certain embodiments, the invention relates to methods of manufacturing a part having an interior layer of polymerized macrocyclic polyester oligomer and an exterior layer of a substantially non-oligomeric polymer. The invention also relates to methods of manufacturing a part with a scratch resistant surface.

Abstract: Silicon- and nitrogen-containing compositions prepared by the reaction of an aminoalkylsilane such as 3-aminopropyl- or 3-methylaminopropyltrimethoxysilane with a glycidoxyalkylsilane such as 3-glycidoxypropyltrimethoxysilane are useful as adhesion promoters in addition curable polyorganosiloxane compositions. The latter are illustrated by mixtures of vinyl-substituted polyorganosiloxanes and hydride polyorganosiloxanes, also containing at least one platinum group metal compound as a hydrosilylation catalyst.

Abstract: There is provided a polymer alloy composition comprising:A. a silicone or organic polymer reactive with an unsaturated radical;B. a silicone or organic polymer that is not reactive with an unsaturated radical; andC. a compatibilizer having at least one functional group that is reactive with component (B) yet not reactive with component (A) and also having at least one unsaturated functional group.

Abstract: There is provided a compatibilizer comprised of essentially linear molecules terminated with an unsaturated radical on one end and a condensable radical on the other end and represented by general formula:R.sub.a.sup.1 --X--R.sub.b.sup.2wherein X is a tetravelent organic or silicon containing group; R.sup.1 is selected from the group consisting of C.sub.1-12 alkyl and C.sub.2-12 alkenyl; R.sup.2 is a C.sub.1-10 alkylamine; "a" is less than 4 and greater than or equal to 1; "b" is less than 4 and greater than or equal to 1; and a+b is equal to 4.

Abstract: A sulfonated aromatic organic polymer, such as sulfonated polystyrene ion-exchange resin is provided having ionically bound N-alkylaminoorganomercaptan groups. The ion-exchange resin can be used to effect phenol-ketone condensation.