Abstract: Disclosed are novel, cross-linked or cross-linkable linear poly(organohydrosiloxanes) wherein the cross-linking units are derived from polycyclic polyenes. These polymers or prepolymers are prepared by reacting or partially reacting the poly(organohydrosiloxanes) with the polycyclic polyene in the presence of a catalyst.

Abstract: Novel thermoset polymers are prepared by reacting an allyl or vinyl aryl or aryloxy substituted cyclophosphazene with a bis-maleimide.

Abstract: A novel metathesis catalyst polymerizable composition is provided which comprises at least one ring-opening metathesis catalyst polymerizable norbornene-type monomer and at least one ring-opening metathesis catalyst polymerizable amine antioxidant comonomer.

Abstract: A method of preparing a mixture composed principally of dicyclopentadiene which is caused to remain liquid at low temperatures by the presence of other cyclopentadiene oligomers.

Abstract: Tear strength of biaxially oriented polypropylene film is increased by laminating thereto a fibrous web of polypropylene fiber under conditions whereby the orientation of the film is retained.

Abstract: Disclosed is a composition that is polymerizable by contacting it with an olefin metathesis catalyst comprising dicyclopentadiene, red phosphorus, and a brominated aromatic compound selected from the group consisting of decabromodiphenyl oxide, N,N'-ethylene-bis-(tetrabromophthalimide), brominated polystyrene, brominated polyphenylene oxide, tetradecabromodiphenoxy benzene, tetrabromoxylene, and octabromodiphenyl oxide.

Abstract: This invention relates to a microporous film having a heat sealable layer on one or both sides thereof. The porosity and permeability of the microporous layer are retained despite the application of the heat seal layer.

Abstract: Disclosed is a method of reducing the activation rate of an alkyl aluminum activator in the metathesis polymerization of strained ring cycloolefins. Activation rate is reduced by use of certain nucleophilic Lewis bases as the reaction rate moderator.

Abstract: This invention teaches the preparation of crosslinked copolymers of dicyclopentadiene and higher oligomers of cyclopentadiene. Such copolymers are characterized by having significantly higher heat distortion temperatures and glass transition temperatures than crosslinked dicyclopentadiene homopolymer.

Abstract: This invention relates to the metallized, biaxially oriented polypropylene films which exhibit good adhesion between the polypropylene and the metal coating, but which, at the same time, have surface properties whereby they are readily machine handleable for processing.

Abstract: Graft copolymers are disclosed wherein maleic acid or maleic anhydride is grafted to a poly(propylene--butene) backbone. The grafts are useful materials for adhering polypropylene to other materials.

Abstract: Disclosed are graft copolymers of polypropylene containing 3 to 100% by weight based on the weight of the polypropylene backbone, preferably 3 to 30%, of an alkyl methacrylate moiety. These are useful as adhesives for bonding polypropylene to chlorinated hydrocarbon polymers. Laminated structures of polypropylene and chlorinated hydrocarbon polymers, which make use of the aforesaid adhesives, are also disclosed.

Abstract: A novel polymer product comprised of polymerized units of dicyclopentadiene and method of making the same as disclosed.

Abstract: A composition comprising a polymer of dicyclopentadiene containig an elastomer.

Abstract: This invention relates to the preparation of metallizable, biaxially oriented polypropylene films which exhibit good adhesion to metal coatings, but which, at the same time, have surface properties whereby they are readily machine handleable for processing.

Abstract: Graft copolymers are disclosed wherein maleic acid or maleic anhydride is grafted to a poly(propylene--butene) backbone. The grafts are useful materials for adhering polypropylene to other materials.

Abstract: Disclosed are graft copolymers of polypropylene containing 3 to 100% by weight based on the weight of the polypropylene backbone, preferably 3 to 30%, of an alkyl methacrylate moiety. These are useful as adhesives for bonding polypropylene to chlorinate-hydrocarbon polymers.

Abstract: Disclosed is a bonding resin composition composed of a blend consisting essentially of (a) maleic anhydride-modified, stereoregular polypropylene having a combined maleic anhydride content of about 0.5-0.8% by weight of said modified polypropylene, and (b) base polymer material at about 25 parts by weight per part by weight of said maleic anhydride-modified polypropylene. The base polymer material is selected from a group of two combinations.One combination consists essentially of stereoregular polypropylene and essentially crystalline, sequentially polymerized propylene-ethylene product having a combined ethylene content of about 25% by weight of the product. The weight ratio of the polypropylene to the product is about 1:3-3:1.

Abstract: A blow molding machine for forming a chain of hollow, shaped article bodies of a normally highly crystalline thermoplastic material which is biaxially oriented, from a continuous tube of the material in substantially unoriented condition, but at its orientation temperature, which includes a tube and chain transporter for pulling the tube from a first point to a second point, and for pushing beyond the second point that portion of the chain formed between the two points; a tube brake to brake the travel of the tube past the first point during at least part of the time it is being pulled, whereby the part of the tube between the points becomes longitudinally stretched; and stationary blow molding means including a plurality of stationary blow molds between the first point and the second point, each having corresponding mold pieces closable on the stretched part of the tube, and openable after formation of the hollow body in the cavity defined by the closed mold pieces, and means for inflating the portion of the

Abstract: A novel class of alpha-keto geminal diacyloxy compounds is disclosed. These compounds are useful as vicinal diketone generators in foodstuffs. Use for this purpose is also disclosed.