The invention relates to thermoplastic molding materials containing A) 10 to 99 wt % of a vinyl aromatic polymer with a syndiotactic pentadene content of 30 mol %, B) 01 to 20 % of delaminated stratified silicate (phyllosilicate), C) 0 to 50 wt % other additives and processing agents, wherein the weight percentages of constituents A) to C) amount to 100 %

Thermoplastic molding materials

To provide a polycarbonate resin composition that has excellent
moisture resistance, good flame resistance, and markedly superior mechanical
strength. 
Means for Solution: A resin composition containing (A) 1 to 99 weight parts
of a polycarbonate resin having a viscosity average molecular weight of
10,000 to 100,000 and (B) 1 to 99 weight parts of a styrene resin, and also
containing (C) a phosphoric ester compound with an acid value of 1 or less, in
an amount of 1 to 40 weight parts per combined 100 weight parts of (A) + (B),
and (D) a reinforcing agent in an amount of 1 to 100 weight parts per
combined 100 weight parts of (A) + (B) + (C).

Polycarbonate resin composition

An impact modified thermoplastic molding composition comprising aromatic polycarbonate and/or polyester carbonate and a rubber-modified graft polymer prepared by the bulk, solution or bulk-suspension polymerization process is disclosed. The composition that is characterized by its low content of lithium ions features improved hydrolytic resistance.

Polycarbonate molding compositions

A flame retardant thermoplastic composition comprising in combination a polycarbonate homopolymer or copolymer comprising repeat carbonate units having the following structure: (I) wherein R1 and R2 are independently at each occurrence a C1 -C4 alkyl, n and p are each an integer having a value of 1 to 4, and T is selected from the group consisting of C5-C10 cycloalkanes attached to the aryl groups at one or two carbons, C1-C5 alkyl groups, C6-C13 aryl groups, and C7-C12 aryl alkyl groups; an impact modifier, wherein the impact modifier comprises wherein the impact modifier comprises a rubber modified thermoplastic resin comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, and wherein the impact modifier has a specific mean particle size and Q value; and a flame retardant. The compositions have excellent scratch resistance as well as an improved balance of physical properties such as impact strength and spiral flow, while at the same time maintaining their good flame performance.

Flame retardant and scratch resistant thermoplastic polycarbonate compositions

Filled thermoplastic compositions useful, e.g., as sound-deadening sheeting for automotive carpet are obtained by blending about 5-55% by weight of ethylene/α-olefin copolymer, the α-olefin containing from 4 to 10 carbon atoms; about 2-12% by weight of plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers and polyether esters; about 40-90% by weight of filler; and optionally elastomeric polymers.

Filled and plasticized blends of linear low density polyethylene

Blends of carbonate polymer, such as a polycarbonate of bisphenol-A, and a rubber-modified copolymer, such as an acrylonitrile/butadiene/styrene (ABS) resin prepared by mass, bulk or mass suspension polymerization techniques, or by agglomerating particles prepared by emulsion polymerization techniques, exhibit good physical properties and a low gloss finish. Such blends are particularly useful in the manufacture of molded parts. Such blends are color stable and exhibit small amounts of yellowing.

Low gloss carbonate polymer blends

A finely divided functional solid is readily incorporated into olefin polymers such as polyethylene, polypropylene and polystyrene by blending a concentrate of the functional solid in a carrier of an ethylene/butene-1 copolymer with the olefin polymer. Thus prepared, these blends containing the finely divided solid are ready for fabrication into shaped articles.

Incorporation of finely divided functional solids into olefin

Blends of carbonate polymer, such as a polycarbonate of bisphenol-A, and a rubber-modified copolymer, such as an acrylonitrile/butadiene/styrene (ABS) resin prepared by mass, bulk or mass suspension polymerization techniques, provide articles which exhibit good low temperature physical properties and can exhibit a low gloss finish. Such blends are particularly useful in the manufacture of molded parts. Such blends are color stable and can exhibit small amounts of yellowing. Such blends are particularly useful in low temperature applications such as below about 0° F.

Low temperature impact resistant carbonate polymer blends

Carbonate polymer compositions comprise a carbonate polymer having dispersed therein a concentrate consisting essentially of a copolymer of an alkenyl-aromatic monomer and an α,β-olefinically unsaturated nitrile monomer and a powdered or crystalline additive. The concentrates allow for good dispersion of additives in the carbonate polymer, provide for clean and efficient use of additives, and are easily processable. The copolymeric base resin does not deleteriously affect the good physical properties of the carbonate polymer with which it is blended at typical additive let down levels.

Process for preparing additive concentrates for carbonate polymers

An additive concentrate composition is composed of a carbonate polymer, a powdered additive such as a pigment, and a mixture of a film-forming adherent such as an esterified polysaccharide and a liquid diluent such as an epoxidized vegetable oil or a bis(phosphorinane), in amounts preferably less than or equal to about 1 percent based on the weight of carbonate polymer and the additive. Alternatively, the epoxidized vegetable oil may optionally be used as a bonding agent. The bonding agents have desirable properties that do not adversely affect the physical properties of the carbonate polymer in end use, and are thermally stable and color-stable.

William P. Paige

Papers

Low gloss carbonate polymer blends

Incorporation of finely divided functional solids into olefin

Low temperature impact resistant carbonate polymer blends

Process for preparing additive concentrates for carbonate polymers

System for bonding additives to resin particles and resulting composition