Basf Se Corporation

Ciba Specialty Chemicals Corporation

Union Carbide Corporation

Union Carbide Chemicals and Plastics Company, Inc.

Ciba-geigy Corporation

Union Carbide Chemicals & Plastics Technology Corporation

Plastics Technology Corporation

Union Carbide Chemicals

Exxonmobil Chemical Patents Inc.

Roswell E King, Iii

Werner Hoelzl

Herbert E Petty

George N Foster

Paul A Odorisio

Bernard Kanner

Stephen Mark Andrews

Dario Lazzari

Dirk Simon

Michael Tinkl

Steven P Hopper

Roger Reinicker

Melissa Stamp

Raymond R Seltzer

Sai Ping Shum

Rita Pitteloud

Mosha H Zhao

Charles H Blevins

Jean-Roch Pauquet

Daniel Müller

Natacha Berthelon

Urs Hirt

Pak S Leung

Curtis L Schilling

Philbert E Ramdatt

Wha Chen

The invention relates to a composition comprising an organic material susceptible to oxidative, thermal or light-induced degradation and a compound of formula I-P, I-O or I-M. Further embodiments are a compound of formula I-P, I-O or I-M, a process for protection of the organic material by the compound, the use of the compound against degradation of the organic material, an additive composition comprising the compound, processes for manufacturing the compound and an intermediate involved therein.

3-phenyl-benzofuran-2-one diphosphate derivatives as stabilizers

Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus&#x2014;containing benzofuranone compounds and iii) one or more hindered amine light stabilizers are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by improved retention of molecular weight and maintenance of polymer molecular architecture.

Stabilized polyolefin compositions comprising benzofuranones and hindered amine light stabilizers

Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus-containing benzofuranone compounds and iii) one or more hindered phenolic antioxidants are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by improved retention of molecular weight and maintenance of polymer molecular architecture.

Stabilized polyolefin compositions comprising benzofuranones and hindered phenolic antioxidants

Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus-containing benzofuranone compounds and iii) one or more acid scavengers are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by improved retention of molecular weight and maintenance of polymer molecular architecture.

Stabilized polyolefin compositions comprising benzofuranones and acid scavengers

Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus-containing benzofuranone compounds and iii) one or more hindered amine light stabilizers are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by improved retention of molecular weight and maintenance of polymer molecular architecture.

Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus-containing benzofuranone compounds and iii) one or more organophosphorus stabilizers are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by improved retention of molecular weight and maintenance of polymer molecular architecture.

Stabilized polyolefin compositions comprising benzofuranones and organophosphorus stabilizers

The invention relates to a composition comprising an organic material susceptible to oxidative, thermal or light-induced degradation and a compound of formula (I-P), (I-O) or (I-M). Further embodiments are a compound of formula (I-P), (I-O) or (I-M), a process for protection of the organic material by the compound, the use of the compound for stabilizing the organic material, an additive composition comprising the compound and a process for manufacturing the compound. The organic material is for example a polymer. 

3-phenyl-benzofuran-2-one derivatives containing phosphorus as stabilizers

A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, when extrusion compounded exhibits a lower residual acetaldehyde content than does polyester or polyamide alone when similarly treated. The invention pertains to any polyester or polyamide used in the manufacture of molded articles, fibers or films, for instance bottles or containers which are used to store consumer materials, for example food, beverages and water.

Polyester and polyamide compositions of low residual aldehyde content

Certain essentially phenol antioxidant-free stabilizer systems that comprise either a binary hindered amine/hydroxylamine or nitrone or amine oxide or benzofuranone system or a ternary hindered amine/hydroxylamine or nitrone or amine oxide or benzofuranone/organic phosphite or phosphonite system are especially effective towards protecting polyolefins against the deleterious effects of gamma irradiation. Polyolefin articles such as medical packaging, hospital garments, draperies, woven and non-woven fiber products, surgery utensils, blow-molded I.V. bottles, hypodermic syringes, needle shields, laboratory ware such as trays, funnels, Petri dishes and filters, and hygiene related articles may be sterilized with gamma irradiation and are stabilized according to the present invention.

Stabilized gamma irradiated polyolefins

Selected alkanolamine esters of acyclic phosphites are particularly effective as process stabilizers for polyolefins providing for melt flow stabilization and resistance to discoloration during said processing.

Alkanolamine esters of acyclic phosphites in polyolefin compositions

A purging composition is provided which is useful for cleaning thermoplastic processing equipment. The composition is composed of the following components in the following concentrations:

Purging composition for cleaning thermoplastic processing equipment

The present invention relates to olefin polymer compositions which can be extruded into film material characterized by improved stability and optical properties. In particular, this application is directed olefin polymer compositions containing specific polyorganosiloxanes bearing a hydroxyl functionality.

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Pleasantville, NY, United States of America

Roswell E King, Iii