Abstract: An encapsulated ballistic protection system (EBPS). In one embodiment, an EBPS for protecting a human or an object from a projectile includes one or more ballistic protection material layers at least substantially encapsulated by encapsulation material having a tensile strength of 20,000 psi or greater. Additionally, in one embodiment, an EBPS includes one or more ballistic protection material layers that are substantially encapsulated by the encapsulation material on a first side adapted to face the human or the object and on a second side opposite the first side and adapted to face the projectile, and the EBPS further includes a compressible layer between the one or more ballistic protection material layers and the encapsulation material on the first side, the compressible layer configured to at least one of dissipate energy, reduce velocity of the projectile, and reduce backface deformation.

Abstract: An encapsulated ballistic protection system (EBPS). In one embodiment, an EBPS for protecting a human or an object from a projectile includes one or more ballistic protection material layers at least substantially encapsulated by encapsulation material having a tensile strength of 20,000 psi or greater. Additionally, in one embodiment, an EBPS includes one or more ballistic protection material layers that are substantially encapsulated by the encapsulation material on a first side adapted to face the human or the object and on a second side opposite the first side and adapted to face the projectile, and the EBPS further includes a compressible layer between the one or more ballistic protection material layers and the encapsulation material on the first side, the compressible layer configured to at least one of dissipate energy, reduce velocity of the projectile, and reduce backface deformation.

Abstract: Vinyl chloride resins are thermally stabilized by incorporating a heterocyclic compound, as represented by Compound A, disclosed herein, which when in the radical, A=S, are thiophene derivatives, when A=--NR, are pyrrolidone derivatives, and when A=O, are tetronic derivatives.

Abstract: An organotin dihalide having the formula ##STR1## OR A MIXTURE OF THE DIHALIDE AND AN ORGANOTIN TRIHALIDE IS PREPARED BY REACTING METALLIC TIN WITH AN OLEFIN HAVING THE FORMULA ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are hydrogen or a hydrocarbon radical and at least one of R.sub.1 or R.sub.2 contains an oxygen-containing group with a carbonyl group adjacent to the olefinic double bond and Hal is a halogen. The organotin dihalide or mixture thereof with a trihalide is reacted with an acid or mercaptan to produce a stabilizer for polyvinyl chloride polymers and the like.