Abstract: A tubeless pneumatic vehicle tire having an interliner ply having reduced resistance to air permeability. The interliner rubber composition is a a graft copolymer of a butyl rubber or a halogenated butyl rubber backbone having pendently grafted thereto a polymerized metal salt of an unsaturated carboxylic acid.

Abstract: A heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a semi-crystalline polymer and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms; from about 20 to 300 parts by weight of one or more non-black mineral fillers per 100 parts of the polymer; and from about 20 to 150 parts by weight of a processing material, per 100 parts of the polymer. The non-black mineral fillers may include hard clays, soft clays, calcined clays, chemically modified clays, mica, talc, alumina trihydrates, calcium carbonate, titanium dioxide, amorphous precipitated hydrated silica and mixtures thereof. The processing material may be any non-volatile oil, i.e., a paraffinic processing oil.

Abstract: A heat seamable flame retardant sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 50 to 90 parts by weight of halogenated polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof and from about 10 to 50 parts by weight of a highly crystalline thermoplasticity promoter selected from the group consisting of polymeric olefins prepared from monomers consisting of at least two carbon atoms; from about 50 to 250 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; from about 20 to 105 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend; and from about 15 to 90 parts by weight of an additive selected from the group consisting of flame retardant ma

Abstract: A rooftop curable heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter comprises 100 parts by weight of a semi-crystalline polymer having more than about 2 percent by weight crystallinity and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of polymer; from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of polymer; and from about 1.5 to 10 parts by weight of a cure package capable of allowing the composition of matter to cure at temperatures of at least about 50.degree. C.

Abstract: A laminate seam of flat rubber sheet material for roofing comprising two layers (10, 11) of the sheet material, at least one layer of which is uncured or cured, and one layer of a thermoplastic film (14) interposed between the overlapped edges (12,13) of the two layers of sheeting material to form a seam without the use of an adhesive. A method for covering a roof comprises the steps of applying a thermoplastic film (14) to the edge (12) of at least one layer of a flat rubber sheet material (10); applying a second layer of flat rubber sheet material (11 ) overlapping the thermoplastic film and the edge of the first flat rubber sheet material; heating the overlapped area to a temperature slightly above the peak melt temperature of the thermoplastic film; and, seaming the overlapped area under sufficient heat and pressure to provide an acceptable seam without the use of an adhesive.

Abstract: A rooftop curable heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 10 to 95 parts by weight of an polymer selected from the group consisting of polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof; from about 5 to 90 parts by weight of a crystallinity enhancing polymer and mixtures thereof; from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; from about 1.5 to 10 parts by weight of a cure package a cure package capable of allowing the composition of matter to cure at temperatures of at least 50.degree. C.

Abstract: A self-adhering heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 10 to 95 parts by weight of an polymer selected from the group consisting of semi-crystalline polymers having more than about 2 percent be weight crystallinity and polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof; and from about 5 to 90 parts by weight of a crystallinity enhancing polymer and mixtures thereof; from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; and from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend.

Abstract: A self-adhering heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 10 to 95 parts by weight of an polymer selected from the group consisting of semi-crystalline polymers having more than about 2 percent be weight crystallinity and polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof; and from about 5 to 90 parts by weight of a crystallinity enhancing polymer and mixtures thereof; from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; and from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend.

Abstract: A laminate seam of flat rubber sheet material for roofing comprising two layers (10, 11) of the sheet material, at least one layer of which is uncured or cured, and one layer of a thermoplastic film (14) interposed between the overlapped edges (12, 13) of the two layers of sheeting material to form a seam without the use of an adhesive. A method for covering a roof comprises the steps of applying a thermoplastic film (14) to the edge (12) of at least one layer of a flat rubber sheet material (10); applying a second layer of flat rubber sheet material (11) overlapping the thermoplastic film and the edge of the first flat rubber sheet material; heating the overlapped area to a temperature slightly above the peak melt temperature of the thermoplastic film; and, seaming the overlapped area under sufficient heat and pressure to provide an acceptable seam without the use of an adhesive.

Abstract: A heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 50 to 90 parts by weight of polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof and from about 10 to 50 parts by weight of a highly crystalline thermoplasticity promoter selected from the group consisting of polymeric olefins prepared from monomers consisting of at least two carbon atoms; from about 50 to 250 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; and from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend.

Abstract: A rooftop curable heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter comprises a semi-crystalline polymer having more than about 2 percent by weight crystallinity and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms, a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures a processing material or mixtures thereof; and a cure package capable of allowing the composition of matter to cure at temperatures of at least about 50.degree. C.

Abstract: A self-adhering heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a semi-crystalline polymer having more than about 2 percent by weight crystallinity and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms; from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer; and from about 20 to 150 parts by weight of a processing material and mixtrues thereof, per 100 parts of the polymer.

Abstract: A haloalkoxylated polybutadiene polymer and a composition containing the polymer which is suitable for use in a flat sheet material such as a roofing membrane is disclosed. The polymer has a superior filler capacity, excellent flame resistivity and acceptable heat aged tensile properties. The composition, which includes at least one polymer of the present invention and from about 5 to about 160 parts by weight of a filler material per 100 parts polymer, is self-adhering without the use of an adhesive and is heat seamable to produce seams which are resistant to temperatures as high as 100.degree. C.

Abstract: A substituted polybutadiene polymer and a composition containing the polymer which is suitable for use in a flat sheet material such as a roofing membrane is disclosed. The polymer has a superior filler capacity, excellent flame resistivity and acceptable heat aging properties, especially heat aged elongations. The composition, which includes the polymer of the present invention and from about 5 to about 160 parts by weight of a filler material per 100 parts polymer, is self-adhering without the use of an adhesive and is heat seamable to produce seams which are resistant to temperatures as high as 100.degree. C.

Abstract: EPDM roof sheeting is prepared by ionizing radiation curing of a sheet calendered from 100 parts uncured EPDM elastomer, 40-150 parts carbon black, 30-100 parts process oil and an ionizing radiation crosslinking promoter. Preferably, the promoter is dicumyl peroxide, .alpha.,.alpha.'bis (t-butylperoxy) diisopropylbenzene, liquid high vinyl 1,2-polybutadiene resin or ethylene glycol dimethacrylate and an average dose of ionizing radiation of about 15 to about 35 megarads is used to produce sheeting meeting RMA (Rubber Manufacturers Association) Roofing Council tensile strength and elongation requirements for non-reinforced black EPDM rubber sheeting used in roofing applications.