Topas Advanced Polymers Gmbh

Polyplastics Usa, Inc

Paul D Tatarka

Timothy M Kneale

An injection stretch blow-molded (ISBM) container prepared by way of injection molding a tubular preform followed by reheating and concurrently stretching and blow-molding the heated preform into the container. The container and preform comprise from 70 wt. % to 97.5 wt. % of a semi-crystalline polyolefin composition comprising one or polymers selected from polyethylene polymers and polypropylene polymers and from 2.5 wt. % to 30 wt. % of an alicyclic polyolefin composition, wherein the alicyclic polyolefin composition has a glass transition temperature, Tg, of from 60° to 145° C.

Injection stretch blow-molding (ISBM) enhancement for semi-crystalline polyolefin containers utilizing alicyclic polyolefins

An injection stretch blow-molded (ISBM) container prepared by way of injection molding a tubular preform followed by reheating and concurrently stretching and blow-molding the heated preform into the container. The container and preform comprise from 70 wt. % to 97.5 wt. % of a semi-crystalline polyolefin composition comprising one or polymers selected from polyethylene polymers and polypropylene polymers and from 2.5 wt. % to 30 wt. % of an alicyclic polyolefin composition, wherein the alicyclic polyolefin composition has a glass transition temperature, Tg, of from 80&#xb0; to 145&#xb0; C.

A melt-blend resin composition prepared by melt-blending includes from 60 parts to 99 parts per hundred weight resin in the blend of an amorphous cycloolefin polymer composition exhibiting a glass transition temperature in the range of from 30&#xb0; C. to 200&#xb0; C.; and from 40 parts to 1 part per hundred weight resin in the blend of a partially crystalline, cycloolefin elastomer of norbornene and ethylene preferably having a glass transition temperature in the range of from &#x2212;10&#xb0; C. to 15&#xb0; C. and a crystalline melting temperature in the range of from 60&#xb0; C. to 125&#xb0; C. and a % crystallinity by weight in the range of from 5% to 40%. The partially crystalline, cycloolefin elastomer optionally has a second glass transition temperature at less than &#x2212;90&#xb0; C.

Melt blends of amorphous cycloolefin polymers and partially crystalline cycloolefin elastomers with improved toughness

Thermoformed articles include cycloolefin/ethylene copolymer and LLDPE. The articles are formed with an areal draw ratio of 1.5 and greater and exhibit unexpectedly elevated stiffness along with ductility suitable for forming deep-draw parts. Multilayer sheet is used for achieving a desired set of properties.

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Union, KY, United States of America

Paul D Tatarka