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5399627 |
Radial styrene-isoprene-butadiene multi-armed block copolymers and compositions and articles containing block copolymers
The invention is drawn to radial block copolymers of the formula: (pS--pI--pB) n X wherein pS is polystyrene, pI is polyisoprene, pB is polybutadiene, X is the residue of a multifunctional...
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5395885 |
Multi-arm cationic star-polymers
The first synthesis of a multi-arm radial-star polyisobutylene is described. The synthesis occurred by the addition of excess divinylbenzene (DVB) linking reagent to a living polyisobutylene (PIB...
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5393838 |
Conjugated diene/monovinylarene block copolymers with multiple tapered blocks
A method for preparing polymodal tapered block copolymers in a polymerization process by sequentially charging: (a) an initiator and monovinylaromatic monomers in the presence of a randomizer; (b)...
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5391603 |
Impact modified syndiotactic vinyl aromatic polymers
A composition of matter comprising: A) from 25 to 90 parts by weight of a syndiotactic, vinylaromatic thermoplastic resin, B) from 1 to 50 parts by weight of a rubbery, impact absorbing...
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5391609 |
Transparent films providing a barrier to the transmission of ultra-violet light
A transparent polymeric film that provides a barrier to the transmission of ultra-violet light. The film results from the addition of titanium dioxide particles having an average particle size less...
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5391670 |
Alkylation resins from polycyclic aromatic compounds
The alkylation resins of this invention comprise the alkylation reaction product of (a) at least one substituted or unsubstituted polycyclic aromatic compound and (b) at least one ethylenically...
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5389438 |
Repositionable adhesive tape
An adhesive of certain elastomeric block copolymers and tackifying materials can be hot-melt coated onto a flexible backing to provide an adhesive tape, two pieces of which can bond to each other...
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5380798 |
Impact-resistant styrenic polymer resin composition and process for making same
An impact-resistant styrenic polymer resin composition comprising 70-97 wt. % of a styrenic polymer resin and 3-30 wt. % of a toughening agent of a fine particle form having an average particle...
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5376722 |
Solid random elastomeric copolymers
There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a...
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5372870 |
Adhesive compositions containing radial block copolymers with butadiene endblock and articles produced therefrom
Radial block copolymers characterized by the formulas: (1) (pS-pI) n X and (2) (pS-pI-pB) n X where pS is polystyrene, pI is polyisoprene, pB is butadiene, X is a residue of a multifunctional...
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5370813 |
Heat resistant composition of polyphenylene ether and/or polystyrene block copolymer(s) and styrenic grafted propylene polymer
Disclosed are resin compositions comprising (a) a polyphenylene ether resin, a styrene resin or mixtures thereof, (b) a styrenic grafted propylene polymer material, (c) one or more monoalkenyl...
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5369174 |
Blends for enhancing properties of vinyl aromatic-conjugated diene block copolymers
Three resin blends are provided: (a) blends of monovinyl aromatic-conjugated diene block copolymers and grafted polypropylene; (b) blends of monovinyl aromatic-conjugated diene block copolymers,...
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5364905 |
Process for the in-situ formation of reinforcing members in an elastomer and elastomer made thereby
A continuous method for the in-situ polymerization of plastic in an elastomeric material in a form suitable for reinforcing the elastomeric material is provided. The method comprises feeding...
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5360855 |
Block polymers and oil-contamination tolerant adhesive compositions
A novel 2-substituted butadiene block copolymer is provided which provides adhesives having superior adhesion and tolerance to oil contaminated surfaces. The elastomeric block has a glass...
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5358783 |
Blends containing polystyrene-polyisoprene-polystyrene block copolymers and articles thereof
Blends of low styrene content polystyrene-polyisoprene-polystyrene block copolymer and high styrene content polystyrene-polyisoprene-polystyrene block copolymer can be used with tackifier resins,...
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5358986 |
Cover for accommodating air bag in air bag system
The present invention aims to provide a cover for accommodating an air bag, having a high opening reliability, adaptable to a wide range of temperatures, having a good durability and a suitable...
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5359003 |
Polysulfide derivatives
Polysulfide derivatives, having the general formula (A--S--S--) 2 X--S--S--A processes for their production and their use for crosslinking of reversion-stable rubber vulcanizates are provided....
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5356994 |
Adhesive/sealant composition comprising a rubber component
A hot-vulcanizable, pumpable rubber-based adhesive/sealant where the rubber component is a mixture of butadiene solid rubber and butadiene or isoprene liquid rubber, and wherein the liquid rubber...
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5349013 |
Process for production of styrene-based resin composition
A process for producing a rubber-modified styrene-based resin. The process includes supplying a styrene-based monomer solution containing 5 to 20% by weight of a rubber component containing a...
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5344869 |
Thermoplastic molding material
Thermoplastic molding materials contain, based in each case on the sum of components A, B and C, A: from 10 to 90% by weight of a polymer A composed of styrene and/or substituted styrene, B:...
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5342858 |
Elastomeric adhesive foam
An elastomeric, hot-melt adhesive foam is disclosed. The adhesive foam preferably comprises an elastomeric, hot-melt adhesive material formed from: (a) about 15% to about 60%, by weight of the...
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5342896 |
Comb polymers having a halobutyl rubber backbone
The subject invention relates to comb polymers having a halobutyl rubber backbone and to techniques for synthesizing such polymers. The comb polymers of this invention can be thermoplastic...
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5338801 |
Compositions of propylene polymer materials and olefin polymer materials with reduced gloss
Disclosed is a polyolefin composition comprising (A) a propylene polymer material and (B) an olefin polymer material selected from the group consisting of a partially crosslinked thermoplastic...
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5336719 |
Transparent toughened plastics
Tough transparent thermoplastics blends may be prepared by blending 10 to 99 weight percent of a block copolymer; 0.1 to 1 weight percent of particulate rubber having a particle size from 0.1 to 10...
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5334657 |
Thermoformable, chemical resistant polymer blends
A thermoformable chemical resistant polymer blend, useful in the preparation of refrigerator and freezer liners comprising: A) from 45 to 70 parts by weight impact modified monovinylidene...
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5332784 |
Terminal-modified block copolymer and compositions containing the same
A terminal-modified block copolymer having the rest of an amino group or imido group-containing terminal-treating agent bonded to the polymer terminal which is obtained by treating the active...
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5332783 |
Compatible blends of epoxy resins and epoxidized polydienes
A compatible polymer blend comprising: a curable aromatic epoxy resin, an epoxidized polydiene polymer, and an anhydride or polycarboxylic acid curing agent. The invention also relates to...
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5331048 |
Blends of vinylaromatic-conjugated diene block copolymers and polybutenes
Blends of monovinyl aromatic-conjugated diene block copolymers with polybutene are provided. Methods of making these resins and articles made therefrom are provided.
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5331038 |
Adhesive for multipacks
The invention is an adhesive which comprises a linear hydrogenated tri-block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene which has a coupling efficiency of 45% or greater and...
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5331046 |
Polyolefinic resin composition having superior paintability
The present invention relates to a polyolefinic resin composition having superior paintability which comprises: (A) 40 to 80 parts by weight of a crystalline polypropylene resin; (B) 1 to 50...
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5330829 |
Elastomeric composition containing elastomer and amorphous propylene/hexene copolymer
An elastomeric composition is prepared containing an amorphous propylene/hexene copolymer and an elastomer selected from styrene butydiene styrene block copolymers.
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5322895 |
Radiation cured adhesive composition
The present invention is a cured adhesive composition with enhanced properties prepared by the high energy ionizing radiation initiated curing of a polymer composition. The polymer composition...
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5321081 |
Polyolefins compatibilized with styrene copolymers and/or polymer blends and articles produced therefrom
A compatibilized polymer alloy has been developed which has excellent processability under thermaforming conditions and the molded articles produced from the alloy exhibit superior gloss,...
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5320899 |
Thermoplastic block copolymer films
The tensile properties of elastic polymer films which contain thermoplastic block copolymer compositions and ethylene/vinyl acetate copolymers are improved by replacing some of the ethylene/vinyl...
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5310794 |
Theromoplastic blends containing graft copolymers of polyacrylates as impact modifiers
Disclosed are blends comprising a propylene polymer material grafted with a polymerizable monomer(s) of a polymer(s) having a Tg greater than 80° C., a propylene polymer material grafted with a...
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5310792 |
Thermoplastic resin composition and method for producing the same
An improved thermoplastic resin composition obtained by subjecting a mixture of at least an engineering plastic and a rubber material containing an α,β-unsaturated carboxylic acids or their...
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5306779 |
Hydrogenated diene block copolymer and composition comprising the same
A hydrogenated diene block copolymer having a polystyrene-reduced number-average molecular weight of 50,000-600,000 which is a hydrogenation product of an (A)-(B) block copolymer in which (A) means...
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5306780 |
Solid block elastomeric copolymers
There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a...
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5304599 |
Low stress relaxation extrudable elastomeric composition
An extrudable elastomeric composition includes an elastomeric polymer and a tackifying resin in which the extrudable elastomeric composition is adapted to form an elastic sheet having a stress...
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5304591 |
Blends of styrene-acrylonitrile polymer, styrene-methyl methacrylate-maleic anhydride terpolymer and glass filler
A thermoplastic molding composition composed of, based on the total of A, B, C and D, 40-95% by weight of a copolymer A of, based on A, 90-95% by weight of styrene and/or its derivatives and...
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5300582 |
Coupled elastomeric block copolymers
Novel block copolymers are disclosed of the formula (AB) p (B) q X wherein A is polymerized monovinylaromatic compound, B is polybutadiene, X is the residue of a polyfunctional curing agent, p...
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5300567 |
Low temperature toughening of polyesters with a modified block copolymer
Toughened polyester compositions are obtained by blending from 60% to 90% by weight of a modified star block copolymer with from 10% to 40% by weight of a polybutylene terephthalate polyester. The...
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5298560 |
Partially crosslinked thermoplastic resin composition
A partially crosslinked thermoplastic resin composition is prepared by dynamically heat-treating a thermoplastic resin (A) in the presence of a carbon radical inducing agent (B) comprising a charge...
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5296540 |
Shaped resin article comprising polyphenylene ether
Disclosed is a shaped resin article comprising (1) a continuous phase of a polyphenylene ether and (2) a dispersed phase dispersed in the continuous phase (1). The dispersed phase comprises (a) a...
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5292806 |
Compositions containing blends of polystyrene-polyisoprene-polystyrene block copolymers
Blends of low styrene content polystyrene-polyisoprene-polystyrene block copolymer and high styrene content polystyrene-polyisoprene-polystyrene block copolymer can be used with tackifier resins,...
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5292789 |
Polyphenylene sulfide resin composition
A polyphenylene sulfide/polyphenylene ether composition is provided, which has excellent dimensional stability and impact resistance, as well as good heat resistance, rigidity and surface...
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5290837 |
Thermoplastic compositions based on a polyolefine and a vinyl aromaticpolymer
A thermoplastic composition based on a polyolefin and a vinyl aromatic polymer, having an improved combination of physical, mechanical and thermal properties, comprising: from 40 to 80% by...
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5290856 |
Engineering resin-propylene polymer graft composition
Disclosed are resin compositions comprising (a) a polyphenylene ether resin or a polyamide resin or a polyester resin; (b) a glycidyl moiety-styrenic grafted propylene polymer material in...
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5290822 |
Ultra low density polyolefin foam, foamable polyolefin compositions and process for making same
An ultra low density polyolefin foam having a density of about 0.6 to about 1.5 pounds per cubic foot comprising a heat-plastified mixture comprising (1) a non-elastomeric olefin polymer resin...
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5288791 |
Low stress relaxation elastomeric fibers
An elastic nonwoven web is formed from elastic fibers composed of a blend of (1) a styrene-poly(ethylene-propylene)-styrene thermoplastic elastomeric block copolymer or a mixture of a...
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