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RE31696 |
Composition for producing article simulating plantation crepe rubber
A molded article simulating the appearance of natural plantation crepe rubber and a method for producing this article. Styrene/butadiene linear or radial block copolymer having a polymerized...
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4474924 |
Stabilized slurries of isoolefin polymers
Polymerization slurries of elastomeric isoolefin homopolymers and copolymers, such as butyl rubber, in diluents such as methyl chloride are effectively stabilized against agglomeration of polymer...
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4469847 |
Process for preparing graft styrene copolymers
A process for preparing graft styrene copolymers is effected by a two-stage polymerization of styrene in the presence of an EPDM elastomer and styrene block copolymer. The resultant graft styrene...
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4464439 |
Co-extruded laminate consisting of at least one sheet of polypropylene and at least one sheet of polymeric material based on high-impact polystyrene
Thermoplastic laminate suited for thermo-forming, consisting of at least one sheet of crystalline polypropylene and of at least one sheet of polymeric material consisting of a mixture of...
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4464504 |
Freon-corrosion, impact and cold resistant flame-retardant polystyrene blend containing zeolites having cation(s) of Mg, Co, Sb, or Mo
The invention relates to a blend, based on polystyrene and/or impact resistant polystyrene, which is stress-corrosion, impact and cold resistant and flame retardant. The blend according to the...
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4463116 |
Easily openable liner for vessel closures
Disclosed is a vessel closure provided with an easily openable liner, said liner being composed of an olefin resin or olefin resin composition comprising as a lubricant two different lubricants...
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4456706 |
Molding compounds, sponge articles produced therefrom and process of production
A molded object having a sponge-like interior surrounded by a skin, molding composition from which it is produced, and the method for producing the article. Copolymers of vinyl-substituted aromatic...
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4451615 |
Polyisoprene toughened adhesive composition
A structurally toughened heat resistant adhesive composition comprising a solution of polyisoprene elastomer in polymerizable acrylate ester monomers. The adhesive composition also contains an...
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4451607 |
Poly(arylene sulfide) compositions
A melt-blended composition comprising poly(arylene sulfide) and hydrogenated conjugated diene/monovinyl aromatic block copolymer with the hydrogenated conjugated diene/monovinyl aromatic block...
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4446180 |
Adhesive composition, film laminate and product pouch or tube therefrom
An adhesive composition comprising a combination of a styrene-butadiene block copolymer, a cyclopentadiene-styrene resin and a random terpolymer of 1,3-pentadiene, a monocyclic terpene, and alpha...
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4444952 |
Thermoplastic molding composition
A thermoplastic molding composition containing a non-equimolar copolymer containing less than 50 mole percent of an α,β-ethylenically unsaturated dicarboxylic acid or its anhydride and more than...
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4444953 |
Assymetric block copolymers and corresponding adhesive formulations
A novel block copolymer having particular utility in adhesive compositions has the structure (A-B) x Y(C) z where A is a poly(monoalkenyl) block, B and C are poly(conjugated diene) polymer...
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4440815 |
Clear, autoclavable plastic formulation for medical liquid containers
A clear, flexible, thermoplastic material capable of being processed into hollow shapes by conventional thermoplastic processing methods and subsequently autoclaved, comprises four components: from...
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4423190 |
Block copolymer mixture of conjugated diene and vinyl aromatic hydrocarbon
A novel block copolymer mixture of conjugated diene (C.D.) and vinylaromatic hydrocarbon (V.H.) having a superior transparency and impact-resistance is produced by the following two step...
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4420588 |
Water-absorbing rubber composition
A water-absorbing rubber composition comprising (A) a 1,3-diene rubber with a crystal or glass region content as measured at an ordinary temperature of 5-50% and (B) a highly water-absorbing resin...
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4418123 |
Extrudable self-adhering elastic and method of employing same
A self-adhering elastic comprises a block copolymer having glassy endblocks and an amorphous midblock, a midblock resin and an endblock resin.
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4409357 |
Footwear-compounds from derivatized star-block copolymers
Footwear compounds containing star-block copolymers having functional groups associated with the nucleus of the copolymers have been prepared. The copolymers of from 10-55% by weight of a monovinyl...
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4397988 |
Blends of p-methylstyrene polymer and diene-styrene or diene-(p-methylstyrene) block copolymers
Blends of conjugated diene-styrene or diene-(p-methylstyrene) block copolymers and polymers of p-methylstyrene. The blends exhibit excellent physical and optical properties.
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4391927 |
Erasable inks containing thermoplastic block copolymers
An erasable ink containing a thermoplastic block copolymer, pigment particles, and a solvent. In a preferred embodiment, an erasable ink requiring little or no pressurization is provided by...
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4390646 |
Erasable inks containing thermoplastic block copolymers
An erasable ink containing a thermoplastic block copolymer, pigment particles, and a solvent. In a preferred embodiment, an erasable ink requiring little or no pressurization is provided by...
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4386125 |
Film, sheet or tube of a block copolymer or a composition containing the same
A film, sheet, or tube having an excellent low-temperature shrinkage suitable for use as, for example, a heat shrinkable label is disclosed. This film, sheet, or tube contains, as a base polymer, a...
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4386187 |
Thermoformable polymer blend composition comprising styrene polymer, olefin polymer and block copolymer
A thermoformable polymer blend composition comprising at least 50% by weight of an olefin polymer such as polyethylene or polypropylene, from 10 to 48% by weight of a styrene polymer and from 2 to...
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4386188 |
Thermoformable polymer blend composition
A thermoformable polymer blend composition comprising at least 50% by weight of an olefin polymer such as polyethylene or polypropylene, from 10 to 48% by weight of a styrene polymer and from 2 to...
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4367312 |
Heat-sealable packaging film producing a peelable seal
Heat-sealable packaging film producing a peelable seal, process for the preparation thereof and packages made therefrom or comprising such a film. This film produces such a seal on a wide range of...
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4366292 |
Mixed polyolefinic compositions
Polyolefenic compositions are formed from a mixture of polyethylene and amorphous polypropylene, or a mixture of isotactic polypropylene, amorphous polypropylene and polyethylene, wherein the...
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4359492 |
Coating with dusting agents in pelletizing tacky elastomeric materials
Thermoplastic elastomers useful in formulating certain pressure-sensitive hot-melt adhesives are normally very tacky and thus are hard to handle. The present invention relates to a method of...
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4355139 |
Compatibilized polymer blends
Compatibilized polymer blends are described comprising a blend of olefin polymer, nitrile rubber, and a compatibilizing amount of block copolymer comprising nitrile rubber compatibilizing segments...
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4352908 |
Blends of polystrene or poly (p-methylstyrene) and p-methylstyrene-diene-styrene block copolymers
Blends of polystyrene, poly(p-methylstyrene) or copolymers of styrene and p-methylstyrene; and an A-B-A' p-methylstyrene-conjugated diene-styrene block copolymer containing, by weight of the block...
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4350795 |
Thermoplastic elastomer blends
Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by...
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4325770 |
Process for pressure-sensitive adhesive coated products
A process for making a pressure-sensitive adhesive coated product from an elastomer utilizing dry blending of powders and dry coating steps is described. Compositions suitable for use in this...
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4305990 |
Thermoplastic rubber film
Thermoplastic rubber containing minor amounts of amorphous polypropylene is extruded into films. The films retain characteristic elastomeric properties of pure rubber, but are significantly more...
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4304882 |
Polymer from peroxy compounds containing acylating groups
Polymers of the formula [(A n s -R-D n s ) v P n s ] w Z n s where A is a peroxy-containing group; R is a 2-4 valent aliphatic, cycloaliphatic or aromatic radical; P is a polyvalent polymeric...
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4302555 |
Compatibilization of polystyrene and PVC
Blends of PVC and polystyrene are made compatible by the addition of from 1 to 20 wt %, based on final composition, of a chlorinated styrene-butadiene block copolymer.
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4294937 |
Impact polymers
Vinyl aromatic compositions having improved impact and toughness are disclosed comprising interpolymers containing a mixture of a polybutadiene rubber with a specific styrene-butadiene two-block...
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4288399 |
Process for low pressure molding thermoplastic elastomer compositions
Compositions comprising a thermoplastic elastomer, e.g., radial block butadiene/styrene copolymer, solid resinous polymer, e.g., vinyl-substituted aromatics, and one or more specific polar...
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4288567 |
Adhesive composition and method of preparation
Adhesive composition comprised of an unvulcanized block polymer product and a compatible tackifier resin. Said adhesive composition is required to be prepared by (A) mixing a solution of a block...
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4286077 |
Weather resistant adhesive composition
A weather resistant adhesive composition possessing an excellent balance of properties including good tack and low melt viscosity comprises a selectively hydrogenated monoalkenyl arene/conjugated...
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4282335 |
High molecular resin composition
A high molecular resin composition having superior impact strength and processability and comprising a polymeric matrix containing polyphenylene ether and a minor proportion of a...
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4277574 |
Process for preparing ABS polyblends
The present invention relates to a process for preparing ABS polyblends having an alkenyl aromaticalkenyl nitrile monomer matrix polymeric phase reinforced with rubber particles grafted with said...
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4275179 |
Poly(p-methylstyrene) polyblend
This invention provides a blend of poly(p-methylstyrene) and a styrene-conjugated diolefin block copolymer containing between about 60 weight percent and about 80 weight percent styrene; the weight...
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4269871 |
Antilumping expandable styrene polymers
Expandable styrene polymer particles are surface-coated with conjugated diene elastomers to prevent the particles from lumping together during expansion. The coating is applied by adding 0.05-0.25...
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4267080 |
Polyethylene composition for rotational molding
Polymers of ethylene having incorporated therein (1) 5-50 weight parts of a rubber and/or an elastomer based on 100 weight parts of the ethylene polymers, (2) a crosslinking agent selected from...
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4264747 |
High impact strength styrene-acrylonitrile resin blend
High impact strength gum plastics are prepared by blending a styrene acrylonitrile resin with a styrene-ethylene-butylene-styrene block copolymer which has grafted on to it an acrylonitrile resin;...
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4258145 |
Ternary polymer blends
A thermoplastic composition comprising 30 to 90 weight percent of a block copolymer formed from a conjugated diene and a monovinylarene, 5 to 35 weight percent of an...
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4255296 |
Polybutadiene rubber composition
This invention relates to a composition comprising a polybutadiene rubber containing a polymer obtained by block or graft polymerization of cis-1,4-polybutadiene with syndiotactic...
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4252913 |
Low molecular weight polyphenylene ether compositions
There are provided thermoplastic compositions comprising a low molecular weight polyphenylene ether resin which has an intrinsic viscosity of less than about 0.4, preferably less than 0.33...
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4252914 |
Thermoplastic elastomer blends of hydrogenated polybutadiene block copolymers with alpha-olefin polymers and copolymers
Thermoplastic elastomer blends of alpha-olefin polymers and copolymers, such as polypropylene, having a melting point of at least 90° C. with hydrogenated diblock copolymers of 1,4-polybutadiene...
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4248758 |
Crosslinked EPDM/thermoplastic elastomer blend
A blend of a crosslinked ethylene-propylene-diene monomer (EPDM) and a thermoplastic elastomer. Such blends exhibit improved ozone resistance.
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4242402 |
Lift-off tape and process
A normally nontacky but potentially tacky adhesive lift-off tape which comprises an adhesive film composition which normally exhibits a plastic nontacky state but is convertible to an elastomeric...
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4225500 |
Novel polymeric compositions for footwear tread members containing a halogenated polyethylene and a block copolymer
Novel compositions comprising polystyrene-polydiene-polystyrene block copolymers and an amount of a halogenated polyolefin effective to provide improved resistance to solvents or oils. The...
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