Abstract: Low temperature asphaltene fouling is inhibited in highly paraffinic crude oil, liquified hydrocarbon gases (e.g. LPG, condensates) and blends thereof by the incorporation of an inhibiting amount of an oil soluble overbased magnesium sulfonate.

Abstract: A film having superior seal strength and barrier properties comprises a base layer comprising 70 to 97 weight % of a polyolefin, e.g. polypropylene, and 3 to 30% weight of a resin of lower molecular weight than the polyolefin, e.g. a hydrogenated petroleum resin. On at least one of the surfaces of the base layer is a 1 to 20 weight % of a film of a random copolymer of 80 to 99 weight % of propylene and 1 to 20 weight % of ethylene, for example, an isotactic propylene-ethylene copolymer.

Abstract: High solids content, high molecular weight hydrophobe-containing cationic polymer products are prepared by an inverse (water-in-oil) emulsion process wherein the hydrophobic monomer is in the water phase. The resultant polymers have increased activity in oily water clean-up.

Abstract: An adhesive foam comprises a foamed mixture of a foamable homo- or co-polymer and a foamable olefin-unsaturated carboxylic acid copolymer, the mixture containing at least 3 weight percent of polymer units derived from the acid.

Abstract: A light color hydrogenated aliphatic hydrocarbon petroleum resin including a piperylene component and a chain transfer agent component useful as a tackifying agent, especially with copolymers. The resin of the invention has a softening point of about 0.degree.-40.degree. C., a number average molecular weight of from 100 to about 900, a low Gardner color of about 3 or less, and is formed by the aluminum chloride catalyzed polymerization of a feed stream essentially free of butadiene.

Abstract: A light color aliphatic hydrocarbon petroleum resin including a piperylene component and a chain transfer agent component useful as a tackifying agent, especially with copolymers. The resin of the invention has a softening point of about 0.degree.-40.degree. C., a number average molecular weight of from 100 to about 900, a low Gardner color of about 3 or less, and is formed by the aluminum chloride catalyzed polymerization of a feed stream essentially free of butadiene.

Abstract: Petroleum resins having a softening point from 10.degree. C. to 80.degree. C. obtained from C.sub.5 olefins and diolefines and one or more monovinyl aromatic compounds which contain from 10 to 30 wt. % of the aromatic are useful as tackifiers for carboxylated styrene butadiene copolymer to produce pressure sensitive additives especially aqueous based adhesive when the resin is in the form of an emulsion which is also claimed.

Abstract: A polyolefin composition of ethylene, propylene, or copolymers thereof having good paint retention and improved flexural modulus is described. The properties result from incorporation into said polyolefin of a discontinuous phase made up of an ethylene/lower alkyl (meth)acrylate/(meth)acrylic acid terpolymer. This composition is particularly useful for molding paintable auto parts.

Abstract: A nonwoven web is prepared from a polymeric blend comprising at least one elastomer and at least one thermoplastic resin. The nonwoven web comprises fibers produced by melt blowing the polymeric blend. Conventional techniques are used to accomplish the melt blowing but due to high viscosity of certain elastomers it is frequently necessary to degrade the polymer blend priior to melt blowing. The nonwoven web exhibits improved extensibility, texture and hand.

Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen-containing compound, an acyl halide, titanium tetrachloride and Cl.sub.2, Br.sub.2 or an interhalogen compound and treating the solids with an aluminum alkyl.

Abstract: A hot melt adhesive contains a copolymer of at least 50 wt. % ethylene containing hydroxyl functionality having a melt viscosity of from 1 to 100 Pa.s at 180.degree. C., an internally blocked polyisocyanate and a viscosity reducing agent such as a tackifier.

Abstract: An adhesive comprising a copolymer and an optionally hydrogenated light color petroleum hydrocarbon resin including an aromatic hydrocarbon component useful for tackifying block copolymers is described which has a softening point of about 0.degree. C. to about 40.degree. C., a number average molecular weight (Mn) of from 350 to 600 and a molecular weight distribution (Mw/Mn) of from 1:1 to about 2.0.

Abstract: Generally, linear polyethylene containing long chain branching is obtained by polymerizing ethylene in the presence of a catalyst comprising a transition metal compound such as titanium chloride, an organoaluminum compound represented by the formula R.sub.1 R.sub.2 AlR.sub.p wherein R.sub.1 and R.sub.2 are the same or different hydrocarbyl groups having from 1 to 18 carbon atoms and R.sub.p is a polymeric hydrocarbyl group containing long chain branching aluminum alkyl cocatalyst.

Abstract: A process for producing a catalyst component for polymerization of olefins which comprises contacting (a) a metal oxide with (b) a magnesium alkoxide, contacting the resulting contact product with (c) a halogen-containing compound, and finally contacting the resulting contact product with (d) a titanium compound.

Abstract: A film for use as a rubber bale wrap includes a thermoplastic containing a release agent and having a microembossed surface to provide the film with a gloss of 10 or less.

Abstract: Petroleum Resins particularly effective for use as tackifiers for hot melt adhesives and in tackifiers for solvent-based pressure sensitive adhesives are prepared by a processWherein (1) a C.sub.8 - and/or C.sub.9 aromatic unsaturated hydrocarbon-containing feed (optionally containing up to 18 wt. % or C.sub.4 or C.sub.5 unsaturated aliphatic hydrocarbons) is first polymerized completely and thereafter a C.sub.5 -aliphatic unsaturated hydrocarbon-containing feed is added, polymerization continued and the reactor effluent stripped to obtain the resin. The order of polymerization may be reversed.

Abstract: An adhesive composition which contains a thermoplastic elastomer which includes ethylene propylene rubber, ethylene propylene diene monomer, polyisobutylene butyl rubber, ethylene vinyl acetate graft copolymers thereof with C.sub.3 to C.sub.10 unsaturated mono- and polycarboxylic acids, a tackifying resin and a di- or polyamine cross-linking agent having 2-10 carbon atoms, which is useful as a hot melt or pressure sensitive adhesive having enhanced higher temperature properties.

Abstract: Bitumen emulsions, usually having a relatively low average particle size, can be continuously and speedily prepared by a process comprising feeding emulsion components into the first of at least two static mixers, arranged in series. The product is passed from the first mixer to the second mixer maintained at a temperature lower than that prevailing in the first mixer and below the boiling point of water. The final emulsion product is obtained from the outlet of the second mixer. Bitumen emulsions of up to 70 wt. % bitumen of mean particle size of from 2 to 8 microns are also described.

Abstract: Resins having an improved combination of softening point and tackifying properties together with good color and heat stability are obtained by Freidel-Crafts copolymerization of 4 to 80 wt. % of a C.sub.5 /C.sub.6 unsaturated feed; 5 to 55 wt. % of a terpene and 3 to 55 wt. % of an unsaturated aromatic compound.

Abstract: Synthetic polyethylene wax having low molecular weight of 250 to 3000 and a density of 0.930 to 0.950 is prepared in a high pressure process at pressures of at least 800 bar using a carbonyl compound such as acetaldehyde as chain transfer agent. The resulting wax with incorporated CO has good compatibility in hot melt systems, and may be stripped to remove light ends, increase density and crystallinity and improve thermal stability.