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5599880 |
Vinyl cyanide and vinyl aromatic monomers-grafted nitrile rubber
The high nitrile graft copolymer is provided and a high nitrile resin composition impact modified thereby is also provided. Brittle high nitrile resins can be effectively impact modified by the...
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5569709 |
Grafting, phase-inversion and cross-linking controlled multi-stage bulk process for making ABS graft copolymers
A method is provided for continuous mass polymerization of acrylonitrile-butadiene-styrene type thermoplastics. The method involves charging a liquid feed comprising a vinylidene aromatic monomer,...
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5567769 |
Preparation of homogeneous polymers using supercritical fluid solutions
Homogeneous polymer blends are prepared from otherwise thermodynamically immiscible polymers, especially including block copolymers. Thus, polymers such as polystyrene/poly(methyl methacrylate)...
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5552482 |
Thermoplastic elastomers with improved extrusion performance
A partially dynamically vulcanized or crosslinked thermoplastic polyolefin elastomer/uncrosslinked olefin polymer blend has improved extrusion performance. The uncrosslinked olefin polymer is...
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5543461 |
Environmental stress crack resistance of hips
High impact polystyrene (HIPS) and other impact modified styrenic polymers such as ABS and MBS tend to suffer from environmental stress cracking. On extended exposure to oily or fatty substances...
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5532318 |
Impact modifier for high nitrile resins and impact modified nitrile resin compositions
The high nitrile graft copolymer is provided and a high nitrile resin composition impact modified thereby is also provided. Brittle high nitrile resins can be effectively impact modified by the...
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5492966 |
Impact modified resin compositions containing lobed graft copolymers and process for the making thereof
Impact modified resin compositions are provided containing bi-lobed graft copolymers. The lobed graft copolymers contain a rigid lobe and a rubbery lobe. The rubber lobes exhibit an affinity for...
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5478890 |
Olefin polymer composition
The olefin polymer composition according to the invention comprises [I] an (α-olefin/polyene copolymer-containing polymer in an amount of 0.005 to 99 by weight, said α-olefin/polyene...
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5473015 |
Blends of a graft copolymer of propylene polymer material with a graft copolymer of olefinic rubber material
Disclosed are blends comprising a graft copolymer of a propylene polymer material, a graft copolymer of olefin rubber material, and optionally an ungrafted olefin rubber, wherein the grafting...
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5470915 |
ABS resins having impact resistance and low-gloss properties and processes for preparing them
The present invention relates to ABS (Acrylonitrile-Butadiene-Styrene) resins having excellent impact resistance, low-gloss properties and superior heat resistance, and to a process for preparing...
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5460818 |
Compatibilized blend of olefinic polymers and monovinylidene aromatic polymers
A polymer blend composition comprising: (a) from 0.5 to 99 percent by weight, based on the total weight of (a), (b), and (c), of an aliphatic α-olefin homopolymer or interpolymer, or an...
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5457155 |
Controlled functional density poly (secondary amines)
A process for preparing a controlled functional density poly(secondary amine) comprising: (a) contacting a polymer containing olefinic unsaturation with carbon monoxide in hydrogen under...
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5432231 |
Recycling stretch wrap film
Waste from stretch wrap films is recycled into non-blocking films useful as bags and liners as well as in food applications, by incorporating a polymer which contains cross-linked rubber particles,...
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5428105 |
Low-profile additives for thermosetting polyester compositions
A curable polyester molding composition incorporating an elastomeric low profile additive dispersed in voided rubbery particle form throughout the composition is used in association with a...
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5418276 |
Graft copolymer, process for production thereof and resin composition containing same
There are disclosed a graft copolymer formed by grafting a styrenic monomer onto a high polymer having double bonds in the side chain to constitute highly syndiotactic polystyrenic chain as the...
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5403889 |
Polybutylene compatibilizers for blends of low density polyethylene and styrenic polymers
Polyethylene has a number of desirable properties. However for some thin film applications it is desirable to increase the stiffness of the film. This may be accomplished by incorporating a polymer...
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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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5352739 |
Compatibilization of elastomer blends
This invention relates to a compatibilized rubber composition and a process for compatibilizing polar/nonpolar rubber blends comprising blending compatiblizers such as ethylene/vinyl acetate...
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5352727 |
Syndiotactic polystyrene composition
There are disclosed a polystyrene composition which comprises 100 parts by weight of a resin component comprising 0 to 99% by weight of syndiotactic polystyrene (SPS) (a) and 100 to 1% by weight of...
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5344714 |
LLDPE composite film free of melt fracture
In accordance with the invention a linear low density polyethylene is coextruded with a composition containing a LDPE and/or HDPE. The product film exhibits substantially no melt fracture and no...
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5342898 |
Particulate graft polymer, and thermoplastic molding material produced therefrom having improved toughness
A particulate graft polymer comprising A: from 30 to 80% by weight of one or more elastomeric polymers A having a mean particle size of from 30 to 1000 run, comprising, based on A, A1: from 85 to...
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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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5314963 |
Graft polymers containing phosphorus
Graft Polymers of a cross-linked copolymer of compounds of formula (I) or (II) ##STR1## and another vinyl compound as graft basis, and a polymerized vinyl group-containing phosphonic acid...
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5302664 |
ABS molding compounds
Thermoplastic molding compounds comprising three resin components with different molecular weights and two graft rubbers. The thermoplastic molding compounds have good toughness, high heat...
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5284694 |
Stress-whitening embossable film
An embossable sheet, having at least one stress-whitening layer comprising a blend of: a) at least one heat-stable polymer selected from the group consisting of polypropylene and a polymethyl...
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5283286 |
Impact-resistant thermoplastic resin composition containing a grafted butadiene rubber
A thermoplastic resin composition is prepared by blending 50-95 wt. % of a copolymer (A) of 10-75 wt. % of α-methyl styrene, 10-60 wt. % of methyl methacrylate, 5-35 wt. % of acrylonitrile and...
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5283287 |
Process for preparing thermoplastic resin composition with excellent HCFC resistance
The present invention provides a process for preparing thermoplastic resin compositions having excellent HCFC resistance which comprises: a first step wherein 50 to 90 parts by weight of a...
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5278234 |
High-nitrile polymer composition, molded article thereof, and process for producing said composition
A polymer composition comprising 2-50 parts by weight of a fine particles component dispersed in a matrix described later, of (1) a high-nitrile (co)polymer, wherein the proportion of the...
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5268424 |
Chlorinated polyvinyl chloride/polycarbonate blend
A chlorinated polyvinyl chloride/polycarbonate blend is prepared utilizing a conventional vinyl impact modifier such as methyl methacrylate-butadiene-styrene (MBS) copolymer as a compatibilizing...
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5250617 |
Polymer blends containing ethylene polymers for flexible films
Polymer blends of (a) graft polymers of vinyl monomers on an alkyl acrylate rubber (b) a partly crosslinked acrylate-based copolymer rubber (c) a resin-like copolymer (d) an...
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5238719 |
Thermoplastic resin compositions resistant to fluorinated/chlorinated hydrocarbons and the use thereof
A high nitrile thermoplastic resin composition having fluorinated/chlorinated hydrocarbon resistance and comprising a specifically defined graft copolymer obtained by polymerizing a vinyl cyanide...
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5223574 |
Tough polymer compositions
Polymer blends are provided comprising a glassy thermoplastic polymer having a glass transition temperature above ambient conditions, e.g., normal room temperature and between 0.1 and 4.0 weight...
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5216079 |
Polyolefin lubricant systems and polymer composites containing such lubricants
Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing...
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5212240 |
Heat resistant styrenic polymer blends
Disclosed are styrenic polymer blends, preferably rubber modified styrenic polymer blends, containing a binary styrene/acrylonitrile copolymer in combination with a fumaronitrile-containing...
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5210140 |
Polyvinyl chloride blends
Blend compositions are provided comprising first polyvinyl chloride and a second polyvinyl chloride wherein the inherent viscosity (I.V.) of the second polyvinyl chloride, measured in accordance...
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5210109 |
Interpenetrating polymer network compositions employing rubber-modified polymers
This invention provides hardenable compositions useful as construction media for a wide range of applications. Particular utility is found in the dental and medical arts where such compositions are...
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5208288 |
Modified nonflammable resin composition
A modified nonflammable molding resin composition. The composition is a blend of (A) a nonflammable resin composition composed of 30 to 80% by weight of a styrene resin having a methyl ethyl...
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5194471 |
Rigid chlorinated polyvinyl chloride compound and articles derived therefrom
CPVC compositions, pipe, and a method of preparing a pipe are disclosed and comprise CPVC having 63% to 70% by weight chlorine and preferably 65% to about 69% chlorine; a high rubber impact...
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5191018 |
Impact-resistant graft copolymer and thermoplastic resin composition containing same
A graft copolymer is formed by graft-polymerizing 10-95 wt. parts of a vinyl monomer onto 5-90 wt. parts of the rubber polymer which comprises 40-99 wt. % of butadiene and 1-60 wt. % of an aromatic...
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5189095 |
High-impact polystyrene
A first reactor is used to graft polystyrene to a rubber-like polymer. A second reactor is used to obtain a mixture of styrene and polystyrene. The effluent from both the first and the second...
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5177147 |
Elastomer-plastic blends
The present invention relates to compositions comprising at least one elastomer and at least one plastic. The composition can be produced by preparing the elastomer and then blending it with the...
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5140067 |
Heat resistant and impact resistant resin composition
A heat resistant and impact resistant resin composition is disclosed which composition comprises 5 to 95 parts by weight of a maleimide copolymer (A) prepared by continuous polymerization in the...
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5104936 |
Thermoplastic molding material
Molding materials comprising a matrix of high impact polystyrene and rubber incorporated in the form of discrete particles contain not less than 50% by weight of polystyrene A and an effective...
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5071913 |
Rubbery isoolefin polymers exhibiting improved processability
A substantially gel free C 4 to C 7 isoolefin homopolymer rubber, butyl copolymer rubber, halogenated butyl rubber (e.g., chlorinated or brominated), or mixtures thereof, comprising a molecular...
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5066708 |
Novel damping compositions
A process of using compositions comprising certain thermoplastic elastomeric polymers for damping and damping compositions comprising soft thermoset polymer containing microscopically discrete...
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5051471 |
Blends of linear low density ethylene copolymers
Novel polymer blends are provided comprising a major amount of a linear low density copolymer of ethylene with an olefin containing 4 to 10 carbon atoms (LLDPE) compounded with a minor amount of an...
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5026780 |
Water swellable resin composition
A water swellable resin composition comprises a water swellable resin and a medium such as a plasticizer, solvent, resin or resin solution. The resin is an alkali metal salt and/or hydrophilic...
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5008331 |
Thermoplastic resin composition
A thermoplastic resin composition consisting essentially of (A) 10-90% by weight of a graft copolymer (A) obtained by polymerizing a mixture of an alkenyl cyanide compound and an aromatic alkenyl...
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5008324 |
Novel damping compositions
A process of using compositions comprising certain thermoplastic elastomeric polymers for damping and damping compositions comprising soft thermoset polymer containing microscopically discrete...
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