Abstract: A syringe assembly of the present invention is composed of an outer cylinder and a seal cap. The outer cylinder has an outer cylinder body part, a piercing needle mounting part, and a piercing needle fixed to the piercing needle mounting part. The seal cap has a closed distal end part, an open proximal end part, a piercing needle mounting part-accommodating part accommodating a distal end portion of the piercing needle mounting part, a piercing needle accommodating part, and a pierceable part into which the piercing needle tip is pierceable. A polyparaxylylene coating is provided on an inner surface of the piercing needle mounting part-accommodating part of the seal cap or on an outer surface of the piercing needle mounting part of the outer cylinder. The inner surface of the piercing needle mounting part-accommodating part of the seal cap and the outer surface of the piercing needle mounting part of the outer cylinder are kept in close contact with each other through the polyparaxylylene coating.

Abstract: An assembly of the present invention for a syringe is composed of a barrel, made of cyclic polyolefin, which has a barrel body having a distal end part and a piercing needle which has a piercing needle tip at its distal end and is fixed to a piercing needle fixing portion of the barrel and a seal cap mounted on the barrel. The seal cap is formed of a thermoplastic elastomer composition containing as its main component a mixture of a styrene-based thermoplastic elastomer and a softener, for hydrocarbon-based rubber, which has a kinematic viscosity of 1 to 5,000 mm2s?1 at 100 degrees C. and a naphthenic carbon ratio (% CN) of not more than 20% when said naphthenic carbon ratio is measured by ring analysis.

Abstract: An assembly of the present invention for a syringe is composed of a barrel, made of cyclic polyolefin, which has a barrel body having a distal end part and a piercing needle which has a piercing needle tip at its distal end and is fixed to a piercing needle fixing portion of the barrel and a seal cap mounted on the barrel. The seal cap is formed of a thermoplastic elastomer composition containing as its main component a mixture of a styrene-based thermoplastic elastomer and a softener, for hydrocarbon-based rubber, which has a kinematic viscosity of 1 to 5,000 mm2s?1 at 100 degrees C. and a naphthenic carbon ratio (% CN) of not more than 20% when said naphthenic carbon ratio is measured by ring analysis.

Abstract: A rubber stopper for a medicine container has a rubber stopper body and a coating layer directly applied to a surface exposed in the medicine container. The coating layer is more flexible than a forming material of the rubber stopper body. The said coating layer comprises a composition containing a silicone-based resin which comprises a condensate of a reactive silicone having a terminal silanol group, and wherein the condensate contains a siloxane bond derived from the silanol group.

Abstract: A syringe assembly includes an outer cylinder having a cylindrical piercing needle mounting part, a piercing needle fixed the cylindrical piercing needle mounting part and a seal cap. The piercing needle has a piercing needle tip at a distal end. The seal cap has a closed distal end part, an open proximal end part, and a pierceable part into which the piercing needle tip is pierceable. The seal cap is formed of a rubber composition containing a mixture of butyl rubber and diene-based rubber as a base polymer thereof, and the piercing needle tip is in a state of being pierced into the pierceable part of the seal cap.

Abstract: A syringe assembly of the present invention is composed of an outer cylinder and a seal cap. The outer cylinder has an outer cylinder body part, a piercing needle mounting part, and a piercing needle fixed to the piercing needle mounting part. The seal cap has a closed distal end part, an open proximal end part, a piercing needle mounting part-accommodating part accommodating a distal end portion of the piercing needle mounting part, a piercing needle accommodating part, and a pierceable part into which the piercing needle tip is pierceable. A polyparaxylylene coating is provided on an inner surface of the piercing needle mounting part-accommodating part of the seal cap or on an outer surface of the piercing needle mounting part of the outer cylinder. The inner surface of the piercing needle mounting part-accommodating part of the seal cap and the outer surface of the piercing needle mounting part of the outer cylinder are kept in close contact with each other through the polyparaxylylene coating.

Abstract: The present invention provides an ethylene polymer that has excellent fluidity and moldability as well as gives a molded product having excellent mechanical strength. The ethylene polymer of the present invention contains 0.02 to 1.50 mol % of a constitutional unit derived from ?-olefin having 6 to 10 carbon atoms, and has the density of 945 to 975 kg/m3, which satisfies both of the following requirements [1] and [2] simultaneously: [1] in CFC, all the components having a molecular weight of 100,000 or more are eluted at a temperature of 85° C. or higher; and [2] the components eluted at a temperature of 80° C. or lower account for up to 5% of all the components eluted in CFC.

Abstract: An ethylene-based resin satisfying simultaneously the following requirements [a] to [c] is excellent in strength and moldability and is suitably used for a blow molded article (a hollow molded article). [a] The environmental stress cracking resistance (ESCR), T, at 50° C. is 500 hours or more in the case of a flexural modulus of 1000 MPa to 1500 MPa and is 100 hours or more in the case of a flexural modulus of 1500 MPa to 2000 MPa, as measured according to ASTM-D-1693, [b] the melt tension at 190° C. is 50 (mN) or more and [c] the melt breaking drawing rate is 90 (m/min) or less.

Abstract: Disclosed is an environmental stress cracking resistance improver that is composed of a compound that has in the molecule thereof a structure represented by the following general formula (I) and a molecular weight of from 200 to 2,000. Also disclosed are a method for improving environmental stress cracking resistance properties that uses the environmental stress cracking resistance improver, and a resin composition with improved environmental stress cracking resistance properties that contains the environmental stress cracking resistance improver. In the above general formula, R1 and R2 are each a hydrocarbon group having 1 to 6 carbon atoms, and may be the same or different from each other.

Abstract: The present invention provides an ethylene polymer that has excellent fluidity and moldability as well as gives a molded product having excellent mechanical strength. The ethylene polymer of the present invention contains 0.02 to 1.50 mol % of a constitutional unit derived from ?-olefin having 6 to 10 carbon atoms, and has the density of 945 to 975 kg/m3, which satisfies both of the following requirements [1] and [2] simultaneously: [1] in CFC, all the components having a molecular weight of 100,000 or more are eluted at a temperature of 85° C. or higher; and [2] the components eluted at a temperature of 80° C. or lower account for up to 5% of all the components eluted in CFC.