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4692295 |
Thermoplastic resin composition for biaxial orientation
Thermoplastic resin compositions comprising a thermoplastic resin capable of biaxial orientation and an additive resin, having a molecular weight above 10 6 , compatible with said thermoplastic...
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4690977 |
Vinyl chloride polymer composition
A vinyl chloride polymer composition comprising (A) 3 to 50 parts by weight of a grafted copolymer and (B) 97 to 50 parts by weight of a vinyl chloride polymer, a total amount of the...
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4690976 |
Blends of olefinic and monovinylidene aromatic polymers
A polymer resin comprising a blend of an olefin polymer, such as polyethylene, a monovinylidene aromatic polymer, such as polystyrene, and a grafted, block copolymer compatibilizing agent. The...
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4689367 |
P-methylstyrene polymer blends
This invention provides a high molecular weight copolymer blend of polyethylene and poly(para-methylstyrene) in the absence of any compatibilizing agent. Preferably, the polyethylene is linear low...
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4686263 |
Modified EPDM rubbers, the production thereof and the use thereof for the production of impact-resistant vinyl polymers
The production of impact-resistant polystyrene with EPDM simplifies the process and produces improved products if a modified ethylene/propylene rubber consisting of styrene/butadiene- or diene...
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4657974 |
Flame-retardant resin composition
A flame-retardant resin composition comprising: (a) a copolymer obtained by copolymerizing from 65 to 80% by weight of α-methylstyrene, from 15 to 30% by weight of acrylonitrile and from 0 to...
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4657976 |
Moulding compositions of vinyl chloride polymers, graft polymers and polymeric plasticizers having a high resistance to ageing
This invention relates to thermoplastic moulding compositions of vinyl chloride polymers, certain graft polymers, certain resin-like copolymer additives and certain rubber-like copolymers for the...
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4645796 |
Polyblends of styrene/α-methylstyrene copolymers with reinforcing interpolymerized styrene-grafted rubber concentrates
Novel and particularly utile for many specific and extraordinarily-demanding applications intimately-blended admixtures of diverse synthetic resinous copolymers and graft-structured and/or the like...
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4612348 |
Rubber concentrate, polymer blends based thereon and methods for making same
The specification discloses a method for forming a rubber concentrate which can be incorporated in relatively high percentages into rubber reinforced polymers without adversely affecting...
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4605704 |
Graft polymers of polymerizable monomers and olefin polymers
Graft polymers are prepared by reacting an ethylenically unsaturated polymerizable monomer with a polymer of an olefin of 2 to about 8 carbon atoms in a process wherein the olefin polymer is...
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RE32217 |
Graft copolymerization process
Mass graft copolymerization carried out in an extrusion passageway having a sealing zone to prevent back flow of grafting material introduced to the extrusion passageway downstream of the sealing...
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4598124 |
Mass polymerization process for ABS polyblends
An ABS polymer comprising (A) a graft copolymer formed by graft polymerizing styrene and acrylonitrile monomers onto an initially ungrafted, low gel diene rubber and (B) a copolymer of said grafted...
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4563505 |
Process for producing thermoplastic graft copolymer resin containing nitrile
A process for producing a thermoplastic resin by polymerizing a monomer mixture consisting of an unsaturated nitrile monomer and an alkenyl aromatic hydrocarbon monomer in the presence of a rubbery...
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4559386 |
ABS compositions and process for preparing same
An intermediate for use in a polyblend consisting essentially of a copolymer of monoalkenyl aromatic monomer such as styrene and a ethylenically unsaturated nitrile monomer such as acrylonitrile...
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4555546 |
Compatibilized blends of acrylic ester
Compatibilized polymer blends are described comprising a blend of olefin polymer, cross-linkable acrylic ester copolymer rubber, and a compatibilizing amount of a graft copolymer comprising acrylic...
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4536546 |
(Meth)acrylate-based compositions
A novel methacrylate-based composition is disclosed. The composition is preferably used as an adhesive. The composition comprises an acrylate-based or methacrylate-based ester monomer, a catalyst,...
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4526928 |
α-Methylstyrene high-content copolymers, a process for their production and thermoplastic resin compositions containing α-methylstyrene high-content copolymers blended with graft copolymers
An α-methylstyrene high-content copolymer which is characterized by that it is a copolymer which comprises 65-90 parts by weight of α-methylstyrene with 35-10 parts by weight of acrylonitrile and...
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4525530 |
Thermoplastic resin compositions
Thermoplastic resin compositions which comprise 20-70 parts by weight of a polyvinyl chloride resin and 80-30 parts by weight of a mixed composition of the following copolymers (A) and (B) at the...
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4520165 |
ABS-moulding compositions
This invention relates to thermoplastic moulding compositions of the ABS-type produced in emulsion and having improved properties in relation to known ABS-moulding compositions, particularly...
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4520171 |
Polymeric hindered amines
Disclosed is a new class of polymeric hindered amine light stabilizers based on maleic anhydride modified polyolefins reacted with tetramethyl piperidine derivatives. These materials are more...
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4511695 |
Soft polymer alloys
The invention relates to soft polymer alloys based on graft polymers and crosslinked, particulate acrylate copolymers which are suitable for the production of flexible moulding compositions having...
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4507435 |
Blends of polyvinyl chloride and copolymers containing para-methyl styrene and acrylonitrile having improved clarity
The clarity of blends of polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene graft copolymer (ABS) is improved by the use of a para-methyl styrene-acrylonitrile copolymer (PMS-AN) as an...
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4504625 |
Thermoplastic resin composition containing iminated copolymer
A thermoplastic resin composition is provided which comprises 10 to 90 wt % of an iminated copolymer prepared by reacting ammonia and/or a primary amine with a graft copolymerization product...
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4503187 |
P-Methylstyrene copolymer blends
This invention provides a high molecular weight copolymer blend of polyethylene and poly(para-methylstyrene) or high impact poly(p-methylstyrene) in the presence of a hydrogenated compatibilizing...
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4501849 |
Chlorinated polyvinyl chloride molding compound
The incorporation of a high melt flow rate propylene-based polymer additive into a CPVC molding compound serves to retard the fusion rate of the CPVC compound during processing.
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4501850 |
Polyvinyl chloride molding compound
The incorporation of a high melt flow rate propylene-based polymer additive into a PVC molding compound serves to retard the fusion rate of the PVC compound during processing.
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4496691 |
Additives for lubricating oils containing styrene and heavy C.sub.12 -C.sub .
The present invention relates to additives for lubricating oils, constituted by a copolymer prepared from 35-55%, and preferably 40-50%, of substituted or non-substituted styrene monomers, and from...
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4491647 |
Polymer composition containing polycarbonate and a copolymer of methylmethacrylate with N-phenylmaleimide
A polyblend comprising a thermoplastic polycarbonate and at least one copolymer selected from methylmethacrylate/N-phenylmaleimide and EPDM-g-methylmethacrylate/N-phenylmaleimide is disclosed. In...
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4490508 |
Graft-modified copolymer and compounding agent for styrene-type polymer containing the same
A graft-modified copolymer having a melt flow rate of 0.01 to 100 g/10 min at a temperature of 230° C. under a load of 2160 g. The graft-modified copolymer is prepared by grafting (a) 100 parts by...
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4487886 |
Process for the production of an object from an ABS-polymer composition
The invention relates to a process for the production of an object from a granular ABS polymer composition, said composition comprising a mixture of I 10-98 parts by weight of one or more...
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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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4471092 |
Impact resistant polymer with improved flow characteristics
An olefin copolymer rubber graft composition having a viscoelastic performance index of not greater than 100 as defined by the expression PI=(DS×MV)/i.v. where DS is the die swell of the...
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4464496 |
Non-yellowing polymer composition
A non-yellowing antioxidant-UV stabilizer combination especially useful in AES polymers comprising (A) at least one antioxidant selected from the group consisting of: (i) a thiodialkylene...
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4463131 |
Bulk flowable impact modifiers
Disclosed herein are coagulated impact modifier polymers having improved powder flow, bulk density and reduced caking tendency. These compositions are preferably prepared by introducing an emulsion...
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4448932 |
Polyvinyl chloride modified with butadiene-containing core-shell composite polymers for enhanced impact strength
This invention relates to a polyvinyl chloride resin composition containing said resin and a significant amount of a polymer of butadiene in the form of a shell-core polymer wherein a polymer of...
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4442264 |
Graft rubbers for modifying thermoplastic moulding compositions
This invention relates to graft rubbers obtained by the radical polymerization of one or more vinyl-group-containing monomers in the presence of at least one rubber, the polymerization reaction...
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4427832 |
Thermoplastic resin compositions
In the emulsion polymerization of a monomer mixture comprising an aromatic vinyl compound, a vinyl cyanide compound and if desired, other vinyl compounds copolymerizable therewith in an aqueous...
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4426494 |
Unsaturated ethylene polymers and processes for preparing and for using same
Unsaturated ethylene polymers and processes for preparing and using the same. These polymers are characterized by the process, comprising the step of reacting a saturated, linear polyethylene...
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4404323 |
Polymer composition of α-methyl styrene/acrylonitrile copolymer and graft copolymer
The invention relates to a heat resistant polymer composition based on one or more graft copolymers of styrene and acrylonitrile on a rubber and a copolymer of α-methylstyrene and acrylonitrile....
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4397987 |
Nitrile rubber/EPDM graft blends
Oil resistant, ozone resistant polymer blends are prepared by blending an Acrylonitrile/Butadiene polymer with an EPDM polymer which has had grafted onto it a polymer prepared by polymerizing onto...
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4397971 |
Thermoplastic plastics containing burr-shaped or fibrous doped polyacetylene particles and process for the production thereof
A process for the production of a thermoplastically processible polymer granulate or powder containing from 0.01 to 50%, by weight, of burr-shaped or fibrous, doped polyacetylene, in which a...
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4374952 |
Nitrile rubber/EPDM graft blends
A polymer composition comprising a blend of NBR elastomer with EPDM grafted with acrylonitrile or acrylonitrile copolymer, imparts oil and ozone resistance to the blend.
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4370388 |
Laminated multilayer structure
A laminated multilayer structure composed of a grafted high-density polyethylene resin layer directly attached to a layer of a resin selected from the group consisting of polyamide resins,...
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4362850 |
Process for the continuous polymerization of polyblends
The present invention relates to an improved process for the continuous mass polymerization of solutions comprising an alkenyl aromatic monomer having a diene rubber polymer dissolved therein...
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4294946 |
Low residual monomer α-methylstyrene-acrylonitrile copolymers and ABS blends therefrom
A process for preparing a thermoplastic resin having high heat resistance by emulsion polymerization of an α-alkylstyrene compound of the formula: ##STR1## wherein R 1 is C 1 -C 3 alkyl and R 2...
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4287312 |
Process for producing a graft-copolymer and blends therewith
A process for producing a graft-polymer comprises adding an aqueous solution of a salt of a strong acid and a monovalent strong base, which solution has been adjusted to a pH value of 8 to 13, to 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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4272584 |
Platable high heat ABS resins and plated articles made therefrom
A metal platable high heat ABS resin containing alkyl substituted silicone polymers and, optionally, up to 35% by weight of a bis-phenol polycarbonate and plated parts made therefrom.
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4267282 |
Minimizing feed problems and reducing residual acrylonitrile monomer in processing nitrile polymers
In the process of melting a blend of nitrile polymer and lubricous additive with a screw-plasticizing unit, the improvement which involves having an absorptive anti-slip agent such as rubber crumb...
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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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